CN102273296B

CN102273296B - Processing method, communication device, communication system and user equipment for resource release

Info

Publication number: CN102273296B
Application number: CN201180000438.4A
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: 2014-12-03
Anticipated expiration: 2031-02-01
Also published as: WO2011100887A3; CN102273296A; WO2011100887A2

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) be 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 in logic CS territory (Circuit Switched Domain, circuit commutative field) and PS territory (Packet Switched Domain, packet-switched domain).The main processed voice business in CS territory, Packet Service is mainly processed in 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, Serving GPRS Support Node), and SGSN can be connected by Gs interface with MSC/VLR.The above-mentioned GPRS/UMTS network architecture also can be referred to as the GERAN/UTRAN network architecture.

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

Along with the development of wireless broad band technology, when keeping the leading superiority of 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 retained packet domain.Wherein, core net mainly comprises MME (Mobility Management Entity, mobile management entity), S-GW (Serving Gateway, gateway), three logic function bodies of 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 be referred to as the E-UTRAN network architecture.

Under the E-UTRAN network architecture, in order to reuse existing CS business in EPS network, 3GPP has proposed a kind of framework that is connected to CS domain core net by EPS network, that is MME is connected to MSC/VLR by SGs interface.Now, UE, by the register flow path of associating, is registered to the registration that is simultaneously accomplished to circuit domain in the process of packet domain.For example, UE initiates tracking area/location area updating flow process of associating attachment flow or associating in packet domain, completes in MME registration, is accomplished to the registration of MSC/VLR by MME.In the process of combined registering, set up SGs associated between the MME of service UE and MSC/VLR, MSC/VLR stops starting implicit detach timer.The separation indication releasing resource follow-up, MSC/VLR sends by accepting MME.For example, in the time of UE shutdown, UE sends separated indication information to MME, and MME sends to MSC/VLR by SGs interface by separation indication, and MSC/VLR is separated from circuit domain by UE, discharges CS resource.

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

Summary of the invention

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

The processing method that resource discharges, described method comprises:

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

To the first equipment, send the first message, the indication that described the first message comprises the CS resource that discharges described UE, so that the circuit switching (CS) resource that described the first equipment notifies described mobile switching center/visitor location register MSC/VLR to discharge described UE.

The method that resource discharges, comprising:

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

To the second equipment, send the 3rd message, in described the 3rd message, comprise the separated indication of circuit switching (CS), so that described the second equipment sends the first message to HSS/HLR, so that described HSS/HLR notice mobile switching center/visitor location register MSC/VLR discharges the CS resource of described UE, described the first message comprises the indication of the CS resource that discharges described UE.

A communication equipment, comprising:

Receiving element, the login request message sending for receiving user equipment (UE);

Transmitting element, for sending the first message to the first equipment, described the first message comprises the indication of the circuit switching (CS) resource that discharges described UE, so that the CS resource that described the first equipment notifies described mobile switching center/visitor location register MSC/VLR to discharge described UE.

A communication system, comprising:

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

Described the first equipment, the first message sending for receiving described mobile management entity, the circuit switching (CS) resource of notifying described mobile switching center/visitor location register MSC/VLR to discharge described UE.

A subscriber equipment, comprising:

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

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

A communication equipment, comprising:

Receiving element, the 3rd message sending for receiving user equipment (UE), comprises the separated indication of circuit switching (CS) in described the 3rd message;

Transmitting element, for sending the first message to HSS/HLR, so that described HSS/HLR notice mobile switching center/visitor location register MSC/VLR discharges the CS resource of described UE, described the first message comprises the indication of the CS resource that discharges described UE.

Processing method, communication equipment, communication system and subscriber equipment that the resource that the embodiment of the present invention provides discharges, if it is associated not set up SGs between MME and MSC/VLR, can trigger the circuit switching (CS) resource that MSC/VLR discharges UE by the first equipment notice MSC/VLR, thereby avoid the waste of CS traffic aided Internet resources.

Accompanying drawing explanation

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

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

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

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

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

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

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

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

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

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

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

Embodiment

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

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

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

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

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

The first equipment receives after the first message, to MSC/VLR, sends the second message, discharges the circuit switching (CS) resource of described UE to trigger MSC/VLR.

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

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

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

Operator's configuration;

Described UE is data type terminal;

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

Old SGSN/MME sets up and has Gs/SGs associated with MSC/VLR;

When Idle state saving signaling ISR un-activation.

In another one embodiment of the present invention, confirm that described old SGSN/MME sets up and has the associated method of Gs/SGs to comprise at least one in following mode with MSC/VLR:

Receive while comprising interim mobile signatory mark TMSI information in described TAU Request or Attach Request message, confirm that old SGSN/MME sets up and has Gs/SGs associated with MSC/VLR; Or,

While including the information that creates Gs/SGs association the UE related context obtaining from old SGSN/MME, confirm that Old SGSN/MME sets up and has Gs/SGs associated with MSC/VLR,

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 the first equipment is old SGSN/MME, the first message comprises whether new MME supports the indication information of SGs interface or the whether available indication information of CS business of described new MME belonging network.

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

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

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

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

Described the first equipment, when confirming that described old SGSN/MME and MSC/VLR foundation have Gs/SGs associated, sends the second message to MSC/VLR defaultly; Or,

Described the first equipment is when confirming that described old SGSN/MME and MSC/VLR foundation have Gs/SGs associated, and described old MME/SGSN sends the second message according to default trigger condition to MSC/VLR.

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

Confirm ISR un-activation;

Receive the indication information that new MME does not support SGs interface; With

Receive the disabled indication information of CS business 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, for serving before the SGSN/MME of this UE, also can be called source SGSN/MME or old side SGSN/MME.

In embodiments of the present invention, the first equipment can be HSS/HLR, can be also 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 in described detach request message, comprising described UE need to be from the indication of CS network detach etc.The circuit switching (CS) resource of described UE comprises the context of described UE.Wherein the 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 present invention provides, if it is associated not set up SGs between new MME and MSC/VLR, can triggers the circuit switching (CS) resource that MSC/VLR discharges UE by the first equipment notice MSC/VLR, thereby avoid the waste of CS traffic aided Internet resources.

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

202, UE receives the registration that new MME sends and accepts message, and the indication that comprises combined registering or EPS registration in message is accepted in described registration;

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

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

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

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

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

UE receives and adhering to that new MME sends accepts message, described in adhere to and accept to comprise in message described type of attachment and adhere to or EPS adheres to for combining; Or

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 is accepted to comprise described tracing section updating type in message.

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

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

The type of determining described UE is data type;

Determine that described UE is for supporting sound-type terminal and the current network of IMS to support IMS voice; Or

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

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

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

The method that the embodiment of the present invention provides, if it is associated not set up SGs between MME and MSC/VLR, can triggers the circuit switching (CS) resource that MSC/VLR discharges UE by the first equipment notice MSC/VLR, thereby avoid the waste of CS traffic aided Internet resources.

Below in conjunction with concrete application scenarios, introduce in detail processing method and the device that a kind of resource discharges.For example, the embodiment of the present 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 flow process of new technological process or associating) complete the registration at Old SGSN/MME (old SGSN/MME) and MSC/VLR.

In embodiment as shown in Figure 3, New MME triggers HSS/HLR and sends message to MSC/VLR, thereby triggers the CS traffic aided Internet resources that MSC/VLR discharges UE.Introduce in detail the processing method that a kind of resource discharges below, 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 described TAU Request message-" EPS Update type " is designated as associated update.Can be specifically that " EPS Update type " is designated as " combined TA/LA updating " or " combined TA/LA updating with IMSI attach ".Or,

2) UE sends tracking area update request message-TAU Request to New MME, and the updating type in described TAU Reques message-" EPS Update type " is designated as tracking area update.Can be specifically that " EPS Update type " is designated as " TA updating ".Or,

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

4) UE sends Attach Request message-Attach Request to New MME.Type of attachment in described Attach Request message-" EPS attach type " is designated as to combine and adheres to.Can be specifically 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 combine and adhere to, mean that UE request network creates SGs association for it.

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

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

Particularly, the indication information that comprises the CS resource that discharges UE in 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 described Update Location Request message is arranged to a bit (bit), or adopt a specific cell, for example " CSrelease Indicator " in described Update Location Request message.

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

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

When trigger condition two, New MME confirm ISR (Idle mode Signalling Reduction, Idle state saving signaling) un-activation, New MME sends above-mentioned the first message to HSS/HLR.If activating, ISR means that UE can keep having set up Gs association between login state Old SGSN and MSC/VLR at Old SGSN and New MME simultaneously, now can not discharge this association.That is, activate ISR and mean that the Gs association of setting up before need to be held, otherwise the state that occurs UE and network is inconsistent, the also problem that affects is experienced.So when ISR is unactivated, New MME can send above-mentioned the first message to HSS/HLR.

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

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

It is associated that trigger condition five, New MME confirm whether old SGSN/MME and the MSC/VLR of described service UE have set up Gs/SGs.If MME confirms to complete associated update/registration at old SGSN/MME before UE, that is, confirm that old SGSN/MME sets up and has Gs/SGs associated with the MSC/VLR of described service UE, MME sends the above-mentioned first information to HSS/HLR.

Particularly, above-mentioned confirmation Old SGSN/MME and the MSC/VLR of described service UE whether set up the associated mode of Gs/SGs can adopt following any one:

I) in step 301, in the TAU Request that UE sends to New MME or Attach Request message, (for example comprise indication information, in described message, comprise TMSI information TMSI-Temporary Mobile Subscriber Identity, interim mobile signatory mark), this indication information is used to indicate UE and had completed associated update/registration.When New MME receives in described TAU Request or Attach Request message, comprise described TMSI information, confirm that Old SGSN/MME sets up and has Gs/SGs associated with the MSC/VLR of described service UE.

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

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

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

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

When UE is after MSC succeeds in registration, MSC sends to HSS/HLR by the relevant MSC/VLR information of described UE, and now HSS/HLR preserves the MSC/VLR information that described UE is relevant.

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,, deletes the relevant context of described UE of preserving that is.Afterwards, to HSS/HLR, return to Cancel Location Answer message.

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

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

In embodiment as shown in Figure 3, when not setting up SGs MSC/VLR associated and service UE between the MME of service UE and the MSC/VLR of service UE and stopped implicit detach timer, thereby New MME triggers HSS/HLR, to the MSC/VLR of service UE, send message and realize the CS traffic aided Internet resources that the MSC/VLR that triggers this service UE discharges UE.

In embodiment as shown in Figure 4, UE triggers HSS/HLR to the MSC/VLR transmission message of service UE by New MME, thereby triggers the CS traffic aided Internet resources of the MSC/VLR release UE of this service UE.Introduce in detail the processing method that a kind of resource discharges below, 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 embodiment shown in Figure 3 in the associated description of step 301.

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

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

404, New MME returns to registration to UE and accepts message, and it can be that tracking area update is accepted (TAU Accept) or adheres 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 described TAUAccept message " renewal result "-" EPS update result " is designated as tracking area update.Can be specifically that " EPS Update type " is designated as " TA updated " or " TA updated and ISR activated ".Or,

2) New MME sends tracking area update and accepts message-TAU Accept to UE.In described TAUAccept message, upgrade result-" EPS update result " and be designated as associated update.Can be specifically that " EPS Update type " is designated as " combined TA/LA updated " or " ccombined TA/LA updated and ISR activated ".Or,

3) New MME sends to adhere to and accepts message-Attach Accept to UE.In described Attach Accept message, adhering to result-" EPS attach result " is designated as EPS and adheres to.Can be specifically that " EPSattach result " is designated as " EPS only ".Or,

4) New MME sends to adhere to and accepts message-Attach Accept to UE.In described Attach Accept message, adhering to result-" EPS attach result " is designated as to combine and adheres to.Can be specifically that " EPSattach result " is designated as " combined EPS/IMSI attach ".

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

It should be noted that, the trigger condition that UE sends the separated indication of above-mentioned CS to New MME can be following a kind of situation:

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

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

I) UE confirms that type is data type.Confirmation mode is that, when " UE ' s usage setting " is set to " Data centric ", UE is data type.Or,

Ii) UE confirms as and supports the sound-type terminal of IMS and current network to support IMS voice.Confirmation 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, in step 404 registration receipt message, carry cell " IMS Voice over PS session supported ", that is, and current service network support IMS voice.Etc..

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

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

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

For example, New MME sends notice request-Notify Request message to HSS/HLR, to indicate described HSS/HLR to send canceling position request Cancel Location Request message to the MSC/VLR of described service UE.Wherein, in described Notify Request message, carry the indication information of the CS resource that discharges UE.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 described Notify Request message is arranged to a bit (bit), or adopt a specific cell in described Notify Request message.

407, HSS/HLR receives after the first message of the above-mentioned indication information that includes the CS resource that discharges UE, according to the relevant MSC/VLR information (MSC/VLR address information-MSC/VLR Number) of described UE of preserving, to the MSC/VLR transmission canceling position request Cancel Location Request message 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,, deletes the relevant context of described UE of preserving that is.Afterwards, to HSS/HLR, return to Cancel Location Answer message.

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

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

In embodiment as shown in Figure 4, when not setting up SGs MSC/VLR associated and service UE between the MME of service UE and the MSC/VLR of service UE and stopped implicit detach timer, UE triggers HSS/HLR to the MSC/VLR transmission message of service UE by New MME, thereby realization triggers the CS traffic aided Internet resources that the MSC/VLR of this service UE discharges UE.

In embodiment as shown in Figure 5, UE triggers HSS/HLR to the MSC/VLR transmission message of service UE by P-CSCF, thereby triggers the CS traffic aided Internet resources of the MSC/VLR release UE of this service UE.Introduce in detail the processing method that a kind of resource discharges below, comprising:

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

505, UE completes the registration at IMS.

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

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

For example, P-CSCF sends notice request-Notify Request message to HSS/HLR, 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, sends message to discharge the relevant CS resource of UE.

508, HSS/HLR receives after the first message of the above-mentioned indication information that includes the CS resource that discharges UE, according to the relevant MSC/VLR information (MSC/VLR address information-MSC/VLR Number) of described UE of preserving, to the MSC/VLR transmission canceling position request Cancel Location Request message 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,, deletes the relevant context of described UE of preserving that is.Afterwards, to HSS/HLR, return to Cancel Location Answer message.

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

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

It should be noted that, above-mentioned P-CSCF can also replace with other application layer entity.

In embodiment as shown in Figure 5, when not setting up SGs MSC/VLR associated and service UE between the MME of service UE and the MSC/VLR of service UE and stopped implicit detach timer, UE triggers HSS/HLR to the MSC/VLR transmission message of service UE by P-CSCF, thereby realizes the CS traffic aided Internet resources of the MSC/VLR release UE that triggers this service UE.

In 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 CS traffic aided Internet resources of the MSC/VLR release UE of this service UE.Introduce in detail the processing method that a kind of resource discharges below, comprising:

601, UE sends tracing section updating request message (TAU Request) to New MME.Tracking area/location area updating request that updating type in message (Update Type) can be designated as associating (is for example designated as combined Tracking Area/Location Area Update Request, or a combined Tracking Area/Location Area Update with IMSI attach Request), or 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.Described Context Ack message comprises whether described New MME supports the indication information of SGs interface, that is whether indicating target side can create SGs association, or the whether available indication information of CS business of described new MME belonging network, that is whether indicating target network supports 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 SGs association in target side.Value is that 1 expression can create SGs association for UE, and CS business can be used; Value is that 0 expression cannot create SGs association for UE, and CS business is unavailable.The embodiment of the present invention does not limit other modes and is used to refer to UE and whether can creates SGs association in target side.

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

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

605, Old SGSN/MME receives the context acknowledgement message that New MME sends, Old SGSN/MME confirms for UE has created Gs/SGs association, that is, in Old SGSN/MME, Gs/SGs related information (Gs/SGsassociation) is set to Gs/SGs-ASSOCIATED (the relevant Gs/SGs related information (Gs/SGs association) of UE that Old SGSN/MME preserves is not in other words Gs/SGs-NULL).Old SGSN/MME sends the first message to MSC/VLR, discharges the CS traffic aided Internet resources of described UE to trigger MSC/VLR.Described the first form of message can be:

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

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

At Old SGSN/MME, confirm for UE, to have created under the prerequisite of Gs/SGs association, Old SGSN/MME can defaultly must send message and to MSC/VLR, trigger MSC/VLR and discharge CS traffic aided Internet resources, 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 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 described Context Ack message), Old SGSN/MME sends the first message to MSC/VLR, to trigger MSC/VLR, discharges CS traffic aided Internet resources; Or,

2) when Old SGSN/MME receives the indication information (receiving indication information in above-mentioned steps 604) that new MME do not support SGs interface, that is confirm that objective network cannot create SGs association for UE, OldSGSN/MME sends the first message to MSC/VLR, to trigger MSC/VLR, discharges CS traffic aided Internet resources; Or,

3) when Old SGSN/MME receives the disabled indication information of CS business (receiving indication information in above-mentioned steps 604) of new MME belonging network, that is confirm that objective network CS business is unavailable, OldSGSN/MME sends message and triggers MSC/VLR release CS traffic aided Internet resources to MSC/VLR; Or,

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

606, MSC/VLR sends separated indication confirmation IMSI/EPS-DETACH-ACK message to OldSGSN/MME.

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

In embodiment as shown in Figure 6, when not setting up SGs MSC/VLR associated and service UE between the MME of service UE and the MSC/VLR of service UE and stopped implicit detach timer, in tracking area update TAU process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby realizes the CS traffic aided Internet resources of the MSC/VLR release UE that triggers this service UE.

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

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

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

703, New MME sends and forwards notice-Forward Relocation Complete Notification message of having reset to Old SGSN/MME

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

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

704, Old SGSN/MME returns and forwards confirmation-Forward RelocationComplete Acknowledge message of having reset to New MME.

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

At Old SGSN/MME, confirm for UE, to have created under the prerequisite of Gs/SGs association, Old SGSN/MME can defaultly must send message and to MSC/VLR, trigger MSC/VLR and discharge CS traffic aided Internet resources, also can trigger according to default trigger condition, described default trigger condition can the step 605 of method shown in Figure 6 in the description of default trigger condition.

706, MSC/VLR sends separated indication confirmation IMSI/EPS-DETACH-ACK message to OldSGSN/MME.

In embodiment as shown in Figure 7, when not setting up SGs MSC/VLR associated and service UE between the MME of service UE and the MSC/VLR of service UE and stopped implicit detach timer, in switching Handover process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby triggers the CS traffic aided Internet resources of the MSC/VLR release UE of this service UE.

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

Receiving element 801, the login request message sending for receiving user equipment (UE);

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

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

Determining unit 805, for determine with described MSC/VLR between not set up SGs associated;

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

In another one embodiment of the present invention,

Described determining unit 805, while not indicating associated update/registration specifically for receiving when described receiving element 801 in the login request message that described UE sends, determine with described MSC/VLR between not set up SGs associated; Or

In the login request message that described determining unit 805 sends specifically for the described UE receiving when described receiving element 801, indicate 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 associated.

In another one embodiment of the present invention,

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

Wherein this default trigger condition can comprise at least one in following manner:

Operator's configuration;

Described UE is data type terminal;

Old SGSN/MME sets up and has Gs/SGs associated with MSC/VLR;

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, in described detach request message, comprising described UE need to 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, for serving before the SGSN/MME of this UE, also can be called source SGSN/MME or old side SGSN/MME.

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

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

Described the first equipment 904, the first message sending for receiving described mobile management entity, the circuit switching (CS) resource of notifying described mobile switching center/visitor location register MSC/VLR to discharge described UE.

In another one embodiment of the present invention,

Described the first equipment 904, specifically for receiving after described the first message, sends the second message to described MSC/VLR, discharges the CS resource of described UE to trigger described MSC/VLR.

In another one embodiment of the present invention,

Described the first equipment 904, when the MSC/VLR foundation of confirming described old SGSN/MME and described service UE has Gs/SGs associated, sends the second message to MSC/VLR defaultly; Or,

Described the first equipment 904 is when confirming that described old SGSN/MME and described MSC/VLR foundation have Gs/SGs associated, and described old MME/SGSN sends the second message according to default trigger condition 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, for serving before the SGSN/MME of this UE, also can be called source SGSN/MME or old side SGSN/MME.

In embodiments of the present invention, the first equipment can be HSS/HLR, can be also 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 in described detach request message, comprising described UE need to be from the indication of CS network detach etc.The circuit switching (CS) resource of described UE comprises the context of described UE.Wherein the 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 present invention provides, comprising:

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

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

In another one embodiment of the present invention,

Described receiving element 1001, accepts message specifically for receiving adhering to that new MME sends, described in adhere to and accept to comprise in message described type of attachment and adhere to or EPS adheres to for combining; Or

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

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

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

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

The type of determining described UE is data type;

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

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

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

Receiving element 1102, the 3rd message sending for receiving user equipment (UE), comprises the separated indication of circuit switching (CS) in described the 3rd message;

Transmitting element 1104, for sending the first message to HSS/HLR, so that described HSS/HLR notice mobile switching center/visitor location register MSC/VLR discharges the CS resource of described UE, the indication that comprises the CS resource that discharges described UE in described the first message.

In another one embodiment of the present invention,

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

In another one embodiment of the present invention,

Described transmitting element 1104, accepts message specifically for sending to adhere to MME, described in adhere to and accept to comprise in message described type of attachment and adhere to or EPS adheres to for combining; Or

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

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

The subscriber equipment that above-described embodiment provides, communication equipment, and communication system can also can be deleted the CS resource of UE in the situation that MME does not support SGs interface, 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 description in the corresponding embodiment of Fig. 7.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in 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 resource discharges, is characterized in that, described method comprises:

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

If receive in the login request message that described UE sends and do not indicate associated update/registration, if or indicate associated update/registration in the login request message of the described UE transmission receiving, but do not support associated update/register flow path, determine and serve that between the mobile switching center/visitor location register MSC/VLR of described UE, not set up SGs associated, to the first equipment, send the first message, the indication that described the first message comprises the circuit switching (CS) resource that discharges described UE, so that the mobile switching center/visitor location register MSC/VLR of UE discharges the circuit switching (CS) resource of described UE described in described the first equipment notification service.

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

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

3. the processing method that resource according to claim 1 discharges, is characterized in that, describedly determines and serves that between the MSC/VLR of described UE, not set up SGs associated, to described the first equipment, sends the first message, comprising:

Determine and serve that between the MSC/VLR of described UE, not set up SGs associated, according to default trigger condition, to described the first equipment, sending the first message.

4. the processing method that resource according to claim 3 discharges, is characterized in that, described default trigger condition comprises at least one in following manner:

Operator's configuration;

Described UE is data type terminal;

Old Serving GPRS Support Node SGSN/ mobile management entity MME is set up and is had Gs/SGs associated with the MSC/VLR of the described UE of service; With

When Idle state saving signaling ISR un-activation.

5. the processing method that resource according to claim 4 discharges, is characterized in that, confirms that described old SGSN/MME sets up and has the associated method of Gs/SGs to comprise at least one in following mode with the MSC/VLR of the described UE of service:

Receive while comprising interim mobile signatory mark TMSI information in tracking area update request TAU Request or Attach Request message, confirm that old SGSN/MME sets up and has Gs/SGs associated with the MSC/VLR of described service UE; Or,

While including the information that creates Gs/SGs association the UE related context obtaining from old SGSN/MME, confirm that old SGSN/MME sets up and has Gs/SGs associated with the MSC/VLR of described service UE,

6. method according to claim 1, it is characterized in that, when described the first equipment is old Serving GPRS Support Node SGSN/ mobile management entity MME, the first message comprises whether new MME supports the indication information of SGs interface or the whether available indication information of CS business of described new MME belonging network.

7. the processing method that resource according to claim 6 discharges, is characterized in that, sends described the first message comprise to old SGSN/MME:

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

Described the first equipment, when the MSC/VLR foundation of confirming old Serving GPRS Support Node SGSN/ mobile management entity MME and described service UE has Gs/SGs associated, sends the second message to MSC/VLR defaultly; Or,

Described the first equipment is when confirming that old SGSN/MME and described MSC/VLR foundation have Gs/SGs associated, and described old MME/SGSN sends the second message according to default trigger condition to MSC/VLR.

9. the processing method that resource according to claim 8 discharges, is characterized in that, when described the first equipment is described old SGSN/MME, described default trigger condition comprises at least one in following mode:

Confirm Idle state saving signaling ISR un-activation;

10. the processing method that resource according to claim 8 discharges, is characterized in that, the login request message of described subscriber equipment comprises:

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

11. 1 kinds of processing methods that resource discharges, is characterized in that, comprising:

Receive and adhering to that new MME sends accept message, described in adhere to accept to comprise in message and adhere to result and adhere to or EPS adheres to for combining; Or the area update that receives new MME transmission is accepted message, and it is tracking area update or associated update that described area update is accepted to comprise tracing section updating result in message;

To the second equipment, send the 3rd message, in described the 3rd message, comprise the separated indication of circuit switching (CS), so that described the second equipment sends the first message to home subscriber server HSS/ attaching position register HLR, so that the mobile switching center/visitor location register MSC/VLR of described HSS/HLR notification service UE discharges the CS resource of described UE, described the first message comprises the indication of the CS resource that discharges described UE.

The processing method that 12. resources according to claim 11 discharge, is characterized in that, so that the MSC/VLR of described HSS/HLR notification service UE discharges the CS resource of described UE, comprises:

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

The processing method that 13. resources according to claim 12 discharge, is characterized in that, describedly before the second equipment sends the 3rd message, also comprises:

Determine that current network do not support CS business, and determine resident current network.

The processing method that 14. resources according to claim 13 discharge, is characterized in that, described definite resident current network comprises at least one in following manner:

The type of determining described UE is data type;

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

15. 1 kinds of communication equipments, is characterized in that, comprising:

Determining unit, while not indicating associated update/registration for receive the login request message of described UE transmission when described receiving element, or indicate associated update/registration in the login request message of the described UE transmission that described receiving element receives, but when described communication equipment is not supported associated update/register flow path, determine that between the mobile switching center/visitor location register MSC/VLR with service UE, not set up SGs associated;

Transmitting element, between MSC/VLR for and described service UE definite when described determining unit, do not set up SGs when associated, to the first equipment, send the first message, described the first message comprises the indication of the circuit switching (CS) resource that discharges described UE, so that the mobile switching center/visitor location register MSC/VLR of described the first equipment notification service UE discharges the CS resource of described UE.

16. communication equipments according to claim 15, is characterized in that,

Described transmitting element, does not set up SGs when associated specifically for determining when described determining unit between the MSC/VLR with described service UE, according to default trigger condition, to described the first equipment, send described the first message.

17. communication equipments according to claim 15, it is characterized in that, when described the first equipment is old Serving GPRS Support Node SGSN/ mobile management entity MME, the first message comprises whether new MME supports the indication information of SGs interface or the whether available indication information of CS business of described new MME belonging network.

18. communication equipments according to claim 15, is characterized in that,

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

19. 1 kinds of communication systems, is characterized in that, comprising:

Mobile management entity, receive the login request message that user equipment (UE) sends, when determining, do not set up SGs when associated with serving between the MSC/VLR of described UE, to the first equipment, send the first message, described the first message comprises the indication of the circuit switching (CS) resource that discharges described UE; Wherein, determine and between the MSC/VLR with the described UE of service, not set up that SGs is associated specifically to be comprised: in the login request message of the described UE transmission receiving, do not indicate associated update/registration, or indicate associated update/registration in the login request message that the described UE receiving sends, but described mobile management entity is not supported associated update/register flow path, determine and serve that between the MSC/VLR of described UE, not set up SGs associated;

Described the first equipment, the first message sending for receiving described mobile management entity, the mobile switching center/visitor location register MSC/VLR of UE discharges the circuit switching (CS) resource of described UE described in notification service.

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

Described the first equipment, specifically for receiving after described the first message, sends the second message to the MSC/VLR of described service UE, discharges the CS resource of described UE to trigger the MSC/VLR of described service UE.

21. according to the communication system described in claim 19 or 20, it is characterized in that,

Described the first equipment is when confirming that old Serving GPRS Support Node SGSN/ mobile management entity MME has Gs/SGs associated with the MSC/VLR foundation of the described service UE of service, and the MSC/VLR to service UE sends the second message defaultly; Or,

Described the first equipment is when the MSC/VLR foundation of confirming described old SGSN/MME and described service UE has Gs/SGs associated, and described old MME/SGSN sends the second message according to presetting the MSC/VLR of trigger condition to service UE.

22. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiving element, for adhering to that new mobile management entity MME sends accepting message for receiving, described in adhere to accept to comprise in message and adhere to result and adhere to or EPS adheres to for combining; Or for receiving the area update of new MME transmission, accept message, it is tracking area update or associated update that described area update is accepted to comprise tracing section updating result in message;

Transmitting element, for sending the 3rd message to the second equipment, in described the 3rd message, comprise the separated indication of circuit switching (CS), so that described the second equipment sends the first message to home subscriber server HSS/ attaching position register HLR, so that the mobile switching center/visitor location register MSC/VLR of described HSS/HLR notification service UE discharges the CS resource of described UE, described the first message comprises the indication of the CS resource that discharges described UE.

23. subscriber equipmenies according to claim 22, is characterized in that, also comprise:

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

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

24. 1 kinds of communication equipments, is characterized in that, comprising:

Transmitting element, be used for sending the first message to home subscriber server HSS/ attaching position register HLR, so that the mobile switching center/visitor location register MSC/VLR of UE discharges the CS resource of described UE described in described HSS/HLR notification service, described the first message comprises the indication of the CS resource that discharges described UE;

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

Described transmitting element, specifically for sending to adhere to mobile management entity MME, accept message, described adhering to adheres to result described in accepting to comprise in message and adheres to or EPS adheres to for combining, or specifically for upgrading and accept message to MME sending zone, it is tracking area update or associated update that described area update is accepted to comprise tracing section updating result in message.