CN101291461A

CN101291461A - Short message end call method and system

Info

Publication number: CN101291461A
Application number: CNA2008100859503A
Authority: CN
Inventors: 胡英; 宗在峰; 朱进国
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2008-06-06
Filing date: 2008-06-06
Publication date: 2008-10-22

Abstract

The invention discloses a method and a system for finally calling short message. The method comprises the steps of: receiving the short message; sending circuit domain paging request message to a packet domain network element which is recorded in incidence relation by a mobile switching center or a visitor location register; carrying short message service indicating information in the circuit domain paging request message; receiving the circuit domain paging request message by the packet domain network element; obtaining the short message service indicating information in the circuit domain paging request message; and carrying out corresponding short message final calling flow. By the aid of the technical proposal of the invention, the short passage final calling flow can be accurately carried out under various conditions; the problem of finally calling the short message under ISR in the prior art is solved, processing load of a network, occupation of internal storage resource and signaling load are reduced; processing of MSC/VLR to the received short message can be kept consistent; and the method and the system are favorable for development, maintenance and network distribution of relevant products.

Description

Short message end call method and system

Technical field

The present invention relates to the communications field, and especially, relate to a kind of short message end call method and system.

Background technology

At present, third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) the standardization effort group just be devoted to research to packet switched core network (Packet Switched Core, abbreviate PS Core as) and global system for mobile communications wireless access network (Universal Mobile Telecommunication System Radio AccessNetwork, abbreviate UTRAN as) evolution, purpose is to make that the PS Core (abbreviating EPC as) of evolution can provide higher transmission rate, shorter transmission delay, and UTRAN (the Evolved UTRAN of support evolution, abbreviate E-UTRAN as), global system for mobile communications enhanced data rates global system for mobile communications evolution technology wireless access network (Global System for Mobile communications Enhanced Data Rate forGSM Evolution radio access network, abbreviate GERAN as), UTRAN, mobile management between the access network of WLAN (wireless local area network) (Wireless Local Area Network abbreviates WLAN as) and other non-3GPP.The mobile communication system of this evolution just is called as the grouping domain system (Evolved Packet System abbreviates EPS as) of evolution.

Fig. 1 is the PS network architecture schematic diagram relevant with SMS terminal call in the EPS network in the prior art, wherein, does not have the network element of direct relation all not provide in Fig. 1 with the present invention, as shown in Figure 1, comprising:

Travelling carriage (perhaps is called portable terminal, Mobile Station, abbreviate MS as)/subscriber equipment (User Equipment, abbreviate UE as) 101, E-UTRAN 102, mobile management entity (Mobility Management Entity, abbreviate MME as) 103, GERAN/UTRAN 104, GPRS (General Packet RadioService, abbreviate GPRS as) serving GPRS support node (Serving GPRS Support Node, be called for short SGSN) 105, (the Mobile Switching Center of mobile switching centre, abbreviate MSC as)/VLR Visitor Location Register (Visitor Location Register, abbreviate VLR as) 106, home subscriber server (Home Subscriber Server, abbreviate HSS as) 107, short message service mobile switch gateway (Gateway MSC For Short MessageService, abbreviate SMS-GMSC as) 108, (the Service Center of short message service center, abbreviate SC as) 109, gateway (Serving Gateway, abbreviate S-GW as) and packet data network gateway (Packet Data Network Gateway, abbreviate PDN GW or P-GW as) 110, wherein, PGW and SGW may close and be located in the physical entity, as shown in Figure 1, also can be respectively in different physical entities.

Internet protocol multi-media sub-system (IP Multimedia Core NetworkSubsystem, be called for short IMS) be a kind of IP-based network framework that proposes by 3GPP, it has made up an opening and service environment flexibly, support multimedia application, and provide abundant multimedia service for the user.

IMS is based on the communication network framework of IP, irrelevant with access technology, except can also providing professional for EPS, GPRS, WLAN (wireless local area network) packet access networks such as (Wireless Local Area Network abbreviate WLAN as) provide outside the business for mobile cellular networks such as GSM, UMTS.

As UE during in the GSM/UMTS network insertion, user's short message service is to provide by circuit (Circuit Switched abbreviates CS as) territory, and as shown in Figure 1, MSC/VLR is the CS domain network element.As UE during in the GSM/UMTS network insertion, user's IP operation is by packet switch (Packet Switch, abbreviating PS as) territory provides, as shown in Figure 1, SGSN is the PS domain network element, the user visits Packet Data Network by the PS territory, and the IP network that operator provides among Fig. 1 is a Packet Data Network, is linked into Packet Data Network by GGSN.

In the GSM/UMTS network, UE can carry out CS and PS renewal respectively and adhere to, be linked into CS and PS territory respectively, but, can waste like this and take Radio Resource and make the exchange of control signaling increase, take in order to save mobile management signaling consumption and Radio Resource, in GPRS, introduce Gs interface between MSC/VLR and the SGSN.Gs interface is finished and set up Gs incidence relation (that is, preserve VLR number at SGSN, preserve the SGSN number at VLR) between MSC/VLR and SGSN, and MSC/VLR arrives called subscriber's UE by the paging of PS territory after setting up the Gs incidence relation.

The Gs incidence relation is more newly-established by the joint route area/location.The joint route area/location is updated to UE that support is attached to UMTS/GSM network C S and PS territory simultaneously when carrying out Routing Area Update in the PS territory, UE is with a sign in Routing Area Update message, if network support Gs interface, just trigger the CS position updating process by SGSN, like this, just in the Routing Area Update process of PS territory, comprise a CS location area updating process, when the joint route area/location upgrades end, set up the Gs incidence relation between SGSN and the VLR.When UE moved generation SGSN variation in network, by the co-location renewal process, new SGSN number can update among the VLR.

When UE after UMTS/GSM network C S territory and PS territory have been adhered to and have been set up the Gs incidence relation, MSC/VLR sends to SGSN by Gs interface with the CS paging, carry out paging UE by SGSN at the UMTS/GSM network PS field, after UE receives the CS paging, carry out alternately from UMTS/GSM network C S access and with MSC/VLR, thus the paging of realization CS business.For example, the user under the UE is as the SMS terminal call user, and short message service center receives the short message that other user sends, and need send under this user's the situation of UE, can realize by SMS terminal call flow process shown in Figure 2.As shown in Figure 2, comprise following steps:

Step 201, UE registers respectively at PS and CS, and sets up the Gs incidence relation by routing area/location associated update process;

Step 202, the SC of short message service center receives short message, need send to UE, and SC sends short messages to corresponding SMS-GMSC;

Step 203, SMS-GMSC and HLR/HSS are mutual, carry out the short message routing inquiry, obtain the MSC/VLR information at UE place;

Step 204, SMS-GMSC changes short message before sending to MSC/VLR, and content of short message and relevant information are sent to MSC/VLR;

Step 205 does not have signaling to connect between MSC/VLR judgement and the UE, needs paging UE.When paging UE, there is the Gs incidence relation in the MSC/VLR judgement, sends the CS paging request message for the SGSN that writes down in the Gs incidence relation;

Step 206, SGSN receives the CS paging request message, send suitable PS beep-page message to GERAN/UTRAN, carry the permanent unique identification of user (International Mobile Subscriber Identity in this message, abbreviate IMSI as) etc. information, and, have an identification information to be used for identifying this paging request in the message and come from the CS territory, in the follow-up description, this beep-page message is called the CS beep-page message.For example, when connecting for IU between SGSN and the wireless access system, send a RANAP paging (IMSI, user's temporary mark TMSI, paging domain information, CS territory indication information) message;

Step 207, GERAN/UTRAN receives the CS beep-page message, sends suitable radio call message by air interface to UE;

Step 208, when UE received CS service paging request message, UE inserted from UMTS/GSM network C S territory, sent the CS page-response message to GERAN/UTRAN;

Step 209 when GERAN/UTRAN receives the CS page-response message, sends the CS page response to MSC/VLR, for example, and RANAP Initial UE (pagingresponse) message;

Step 210, receive the CS page-response message after, begin to carry out the short message transmittance process between MSC/VLR and the UE;

After the step 211, short message transmission success, MSC/VLR is to the SMS-GMSC status report that sends SMS message;

Step 212, SMS-GMSC sends SMS message to SC and sends report, and the SMS terminal call flow process finishes.

In the EPS network, EPS system itself can not provide and control business such as audio call, short message, the carrying of IP data can only be provided, user's basic speech business, short message service and based on supplementary service (the Supplementary Service of speech business, be called for short SS) wait and control by IMS, short message then adopts SMS over IP solution.But when the EPS network design, some operator only disposes the EPS network in the key area that the UMTS/GSM network has covered, and is used for not disposing IMS for the user provides IP data service at a high speed.In order to realize CS business such as audio call, short message under this network design scene, 3GPP has set up circuit domain dropping (CS fallback abbreviates CSFB as) problem and has researched and solved scheme.

In CSFB in the short message implementation method, if network is not disposed IMS, then when UE at EPS network insertion MSC/VLR when carrying out SMS terminal call, employing is delivered to the EPS network by the SGs interface between MSC/VLR and the MME with short message, again by the method for EPS network delivery short message to UE, rather than picture voice, location service (Location Services abbreviates LCS as) etc. need UE to fall back to UMTS/GSM CS network from the EPS network to finish.

The specific implementation method is: introduce the SGs interface between MME and MSC/VLR, SGs is based on the development of Gs interface, when the UE start inserts the EPS network, set up SGs incidence relation (in MME, preserve MSC/VLR number or address information, in MSC/VLR, preserve MME address or number information) between MME and the MSC/VLR.SGs is related identical with the Gs correlation function, and in subsequent descriptions, unified use Gs association is described to the association of the SGs among MSC/VLR description related with Gs the time.When UE was mobile in the EPS network, the latest position information of UE can be updated to MME, if MME changes, the MME information of preserving among the MSC/VLR also can upgrade in time.When carrying out SMS terminal call, MSC/VLR sends to MME by the SGs interface with short message, and MME is by Non-Access Stratum (Non-Access-Stratum, abbreviating NAS as) signaling is delivered to UE, in the prior art, EPS network SMS terminal call flow process comprises following processing as shown in Figure 3:

Step 301, CS falls attaching process after rise, and after this process was finished, UE set up the SGs association at EPS and CS network registry between MSC/VLR and the MME;

Step 302, short message service center (SC) receives short message, need send to UE, and SC begins the SMS terminal call flow process, and SC sends short messages to corresponding SMS-GMSC;

Step 303, SMS-GMSC and HLR/HSS are mutual, carry out the short message routing inquiry, obtain the MSC/VLR information at UE place;

Step 304, the target MSC that SMS-GMSC obtains in the routing inquiry process/VLR sends " preceding commentaries on classics short message ", and content of short message and relevant information are sent to MSC/VLR;

Step 305, MSC/VLR encapsulates content of short message according to the mode that defines in the short message related protocol, and the MME at the UE place of being write down in the Gs association sends downlink data message then, comprises short message in the message;

Step 306, MME receives the downlink data message that MSC/VLR sends, and sends out beep-page message, paging UE to the eNode B of the sub-district service that all tracking areas of the current registration of UE comprise; If UE is current is not to be in Idle state, but is in connection status, that is, existed signaling to be connected between UE and the MME, and then step 306-308 omits, directly execution in step 309;

Step 307, all receive the eNode B of beep-page message by air interface paging UE;

Step 308, UE receives beep-page message, and UE initiates by its business of triggering request;

Step 309, MME encapsulation short message transmits content of short message by descending NAS message in NAS message;

Step 310, UE receives descending NAS short message, and sending SMS message to MME by up NAS message sends report;

Step 311, MME receives the short message transmission report that UE sends, and sends upstream data message to MSC/VLR, wherein comprises short message and sends report;

Step 312, MSC/VLR receives the message that MME sends, and wherein comprises short message and sends report information, and MSC/VLR sends report message to SMS-GMSC, and notice SMS-GSMC short message sends situation;

Step 313, SMS-GMSC sends report to SC, and the SMS terminal call flow process finishes.

Wherein, Fig. 2 and above-mentioned flow process shown in Figure 3 are respectively when not introducing saving signaling under the idle pulley (Idle-mode Signaling Reduction abbreviates ISR as) or not considering ISR, and UE is at the short message end call method of UMTS/GSM and EPS network.

ISR a kind ofly is used for limiting UE under idle pulley, carries out the mechanism of the signaling that the sub-district gravity treatment brings between the wireless access technology.When UE is in idle pulley in the two overlay areas of UMTS/GSM network and EPS network, because reasons such as mobile or wireless signal strength changes may frequently be switched between UMTS/GSM and EPS access way, thereby need constantly carry out Routing Area Update (Routing Area Update, be called for short RAU, UE upgrades the process of position at the UMTS/GSM network PS field) and tracing section updating (Tracking Area Update, be called for short TAU, UE upgrades the process of position at the EPS network) bring a large amount of Signalling exchanges.In order to reduce the signaling traffic load that signalling interactive process brings to network, a problem of studying among the 3GPP is exactly ISR, its main thought is exactly when UE and network are all supported the ISR function, SGSN and MME preserve user context information, also be kept at the log-on message of two networks among the UE, like this, when follow-up UE switches between network once more, just do not carry out TAU and RAU process, that is to say, it is follow-up when UE is mobile between UMTS/GSM and EPS network, if the route district of UE (positional information of UMTS/GSM network PS field UE) and tracking area tabulation (positional information of EPS network UE) was registered, UE just can not initiate Routing Area Update and tracing section updating, and the current EPS of being in network still is the UMTS/GSM network thereby network can't be known UE.

ISR activates, and supports all under the situation of ISR function at UE and network that exactly be kept at the log-on message of EPS and two networks of UMTS/GSM PS among the UE, MME and SGSN preserve user's the information and the situation of ISR activation marker simultaneously.ISR does not activate, and only is recorded in the access registration information of EPS or UMTS/GSM PS exactly in UE, has only MME or SGSN to keep the situation of user profile down.

In order to guarantee that MSC/VLR can paging arrive UE under ISR activation situation, and, based on minimum to the MSC/VLR influence, realize simple and MSC/VLR does not need to be concerned about considerations such as ISR, in the prior art, in CSFB under the ISR method of CS paging be in MSC/VLR, only preserve and a nearest MME who sends position updating request between SGs or the Gs incidence relation between the SGSN, when carrying out the CS paging, initiate the paging of own place network by MME that receives the CS paging or SGSN, simultaneously, if UE is in Idle state, then to activating related SGSN or MME forwarding CS paging, to initiate the CS paging in corresponding SGSN or MME place network with oneself setting up ISR.Fig. 4 and Fig. 5 are respectively the schematic diagrames under two kinds of situations of CS paging under the ISR.Below in conjunction with Fig. 4 and Fig. 5 the implementation method that has CS paging under the ISR now is described.

Fig. 4 be in the prior art when the SGs incidence relation is between MME and MSC/VLR the schematic diagram of CS paging flow process under the ISR.Flow process shown in Figure 4 comprises following steps:

Step 401, the current record of Gs incidence relation is under the situation of MME in MSC/VLR, when MSC/VLR need carry out the CS paging by Gs, MSC/VLR sent a CS paging request message by the SGs interface to MME;

Step 402, MME receives the CS paging request message that MSC/VLR sends, and sends out CS paging request to eNodeB, beginning paging UE in EUTRAN;

Step 403, if MME judges that current I SR does not activate or UE is in connection status, then only in the network at own place, carry out the CS paging, if current I SR activates and UE is in Idle state, then MME is according to its SGSN information that obtains in ISR activation, send CS paging request to corresponding SGSN, notify corresponding SGSN to initiate in the network of own place, to carry out the CS paging;

Step 404, SGSN receives the CS paging request that MME transmits, and sends CS paging request, paging UE in GERAN/UTRAN to GERAN/UTRAN.

Need to prove, in above-mentioned processing, when ISR not do not activate or MME in UE when being in connection status, only need carry out the CS paging at the EPS network, step 403 and 404 does not need to carry out.When ISR activates and UE when being in connection status, need carry out CS paging, execution in step 401-404 at EPS network and UMTS/GSM network PS field.

Fig. 5 be in the prior art when the Gs incidence relation is between SGSN and MSC/VLR CS paging schematic flow sheet under the ISR.Flow process shown in Figure 5 comprises following steps:

Step 501, that the current record of Gs incidence relation is SGSN among the MSC/VLR.When MSC/VLR need carry out the CS paging by Gs, MSC/VLR sent the CS paging request message by Gs interface to SGSN;

Step 502, SGSN receives the CS paging request that MSC/VLR sends, and sends CS paging request, paging UE in GERAN/UTRAN to GERAN/UTRAN;

Step 503 if SGSN judges that current I SR does not activate or UE is in connection status, is then carried out the CS paging in the network at own place.If current I SR activates and UE is in Idle state, SGSN sends CS paging request according to its MME information that obtains to corresponding M ME in ISR activation;

Step 504, MME receives the CS paging request message that SGSN sends, and sends out CS paging request to eNodeB, paging UE in EUTRAN.

Need to prove that in above-mentioned processing, UE is when being in connection status among activation or the SGSN when ISR does not have, and only need carry out the CS paging at the UMTS/GSM network PS field, step 503 and 504 does not need to carry out.When ISR activates and UE when being in connection status, need carry out the CS paging at UMTS/GSM network PS field and EPS network, then execution in step 501-504.

When carrying out SMS terminal call, under above-mentioned ISR in the CS paging method, Fig. 2 and existing short message end call method shown in Figure 3 exist following shortcoming and problem: as shown in Figure 3, short message need pass to MME by MSC/VLR, if Gs is associated between SGSN and the MSC/VLR, MSC/VLR need be delivered to SGSN with short message, be delivered to MME again by SGSN, but in the prior art, (for example only transmit the paging relevant information between MSC/VLR and SGSN and SGSN and the MME, user totem information and positional information), and can not transmit content of short message and business information.If do not change existing procedure, short message then can't be delivered to MME from MSC/VLR, thereby can't realize the SMS terminal call under this scene.

When carrying out prior art revised, if do not change existing EPS network SMS terminal call flow process, the Gs association is under the situation of SGSN in MSC/VLR, content of short message just need be delivered to SGSN from MSC/VLR, pass to MME by SGSN then, SGSN just need compare many modifications for this reason like this; And, between MME and SGSN, transmit content of short message, signaling process between MME and the SGSN is revised bigger, if when having a large amount of short messages to send in the real network running simultaneously, the signaling traffic load between MME and the SGSN will be very big.

ISR do not have to activate and MSC/VLR in the Gs association be under the situation of MME, UE is in the EPS network insertion, it is easy processing method that MSC/VLR directly sends to content of short message MME.But, if ISR activates, because network can not determine UE current be in EPS or UMTS/GSM, to insert, according to EPS SMS terminal call flow process shown in Figure 3, before paging UE, MSC/VLR can send to MME with short message, when UE not at the EPS network but under the situation of UMTS/GSM network, content of short message there is no need to send in advance MME, because can load according to the processing that the short message related protocol carries out the content of short message encapsulation by invalid increase MSC/VLR like this, and the signaling traffic load of MSC/VLR on the SGs interface that the relevant downlink data packet that sends SMS message to MME on the SGs interface is brought, and ineffective occupation MME internal memory comes the buffer memory short message.So need to consider how to change the SMS terminal call after existing SMS terminal call flow process realizes introducing ISR.Yet, the technical scheme that addresses the above problem is not proposed at present as yet.

Summary of the invention

Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of short message end call method, and MSC/VLR sends to MME with short message in advance under the situation that ISR activates to solve in the correlation technique, thereby increases problems such as MME load, network signal load.

According to an aspect of the present invention, provide a kind of short message end call method, be used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities.

Short message end call method according to the embodiment of the invention comprises: the grouping domain network element transtation mission circuit territory paging request message that mobile switching center writes down in incidence relation, and in the CS paging request message, carry the short message service indication information; Grouping domain network element receiving circuit territory paging request message is obtained short message indication information wherein, and carries out corresponding SMS terminal call flow process according to described short message indication information.

Preferably, above-mentioned grouping domain network element is a mobile management entity.

In addition, receive the CS paging request message at grouping domain network element, and obtain after wherein the short message indication information, further comprise: the state of mobile management entity judges terminal, wherein, the state of terminal comprises idle condition and connection status.

Preferably, in the mobile management entity judges terminal is under the situation of connection status, further comprise: mobile management entity is directly to mobile switching center transtation mission circuit territory page response or business request information, do not carry out call terminal and to the operation of GPRS serving GPRS support node repeat circuit territory paging request message.

Preferably, in the mobile management entity judges terminal is under the situation of idle condition, further comprise: mobile management entity is that EUTRAN sends beep-page message to terminal by the global system for mobile communications wireless access network of evolution, wherein, carry or do not carry the short message service Indication message in the beep-page message; In response to beep-page message, terminal sends service request to mobile management entity; Mobile management entity receives service request, to mobile switching center transtation mission circuit territory page response or business request information.

Preferably, be in idle condition and judge that further terminal is under the ISR activation situation in the mobile management entity judges terminal, further comprise: mobile management entity is to GPRS serving GPRS support node repeat circuit territory paging request message, wherein, carry or do not carry the short message service indication information in the message.

Preferably, above-mentioned mobile management entity is after the paging request message of GPRS serving GPRS support node repeat circuit territory, further comprise: the GPRS serving GPRS support node is that GERAN/UTRAN sends beep-page message to terminal by traditional global mobile communication system/general mobile communication system, wherein, do not carry the short message service indication information in the beep-page message; In response to beep-page message, terminal sends page-response message by traditional global mobile communication system/general mobile communication system to mobile switching center; Mobile switching center receives page-response message, and short message is sent to terminal.

Preferably, above-mentioned grouping domain network element is the GPRS serving GPRS support node.

Preferably, after the paging request message of mobile switching center transtation mission circuit territory, further comprise: the GPRS serving GPRS support node sends beep-page message by UTRAN/GERAN to terminal, wherein, does not carry the short message service Indication message in the beep-page message; Terminal sends page-response message by UTRAN/GERAN to mobile switching center; In response to page response, mobile switching center sends SMS message to terminal.

Preferably, when the GPRS serving GPRS support node carried out foregoing circuit territory paging operation, described GPRS serving GPRS support node judged whether terminal is in idle condition and is the ISR activation.

Preferably, be under idle condition and the situation in terminal for the ISR activation, the GPRS serving GPRS support node is to mobile management entity repeat circuit territory paging request message, and carries the short message service indication information in the CS paging request message.

In addition, comprise further after the above-mentioned processing that Mobility Management Entity is judged the state of terminal, wherein, state comprises idle condition and connection status.

Preferably, be under the situation of idle condition in the mobile management entity judges terminal, further comprise: mobile management entity sends beep-page message by EUTRAN to terminal, wherein, carries or do not carry the short message service Indication message in the beep-page message; In response to beep-page message, terminal sends service request to mobile management entity; In response to beep-page message, terminal sends service request to mobile management entity; Mobility Management Entity is to mobile switching center transtation mission circuit territory page response or business request information.

Preferably, be under the situation of connection status in the mobile management entity judges terminal, further comprise: mobile management entity is to mobile switching center transtation mission circuit territory page response or business request information, without call terminal.

Preferably, above-mentioned short message service indication information is the Optional Field in the CS paging request message, and grouping domain network element under the situation of not supporting the short message service indication information, is ignored this Optional Field when receiving the CS paging request message.

Preferably, above-mentioned short message service indication information is represented one of at least by following: type of service, paging reason.

According to a further aspect in the invention, provide a kind of SMS terminal paging system, be used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities.

SMS terminal paging system according to the embodiment of the invention comprises: short message service center, short message service mobile switch gateway, home subscriber server and wireless network (GERAN/UTRAN/EUTRAN).In addition, the SMS terminal paging system of the embodiment of the invention also comprises: mobile switching center, be used for transtation mission circuit territory paging request message, and wherein, carry the short message service indication information in the CS paging request message; Grouping domain network element is used for carrying out corresponding SMS terminal call flow process according to the short message indication information.Under the situation that receives service request by packet domain from terminal to mobile switching center transtation mission circuit territory page-response message.Wherein, grouping domain network element is mobile management entity or GPRS serving GPRS support node, and described packet domain comprises the packet domain of evolution.

In addition, mobile switching center further comprises: be used for receiving circuit territory page-response message, and send SMS message to terminal via grouping domain network element; Be used for the CS paging response message that receiving terminal sends by circuit domain, and send short messages to terminal.

Pass through technique scheme, make that the SMS terminal call flow process can both correctly be carried out in all cases, solved in the prior art problem of SMS terminal call under the ISR, and reduced the taking and signaling traffic load of processing load, memory source of network, and the processing that makes MSC/VLR receive short message can be consistent, and helps the development and maintenance and the network design of Related product.

Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.

Description of drawings

Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is the UMTS/GSM network system architecture schematic diagram relevant with SMS terminal call in the EPS network in the correlation technique;

Fig. 2 is the flow chart that MSC/VLR passes through the SMS terminal call of UMTS/GSM network PS field paging UE when not introducing ISR in the correlation technique;

Fig. 3 is the flow chart that MSC/VLR carries out SMS terminal call when not introducing ISR in the correlation technique by the EPS network;

Fig. 4 is the flow chart that ISR descends CS paging method when the SGs incidence relation is between MME and MSC/VLR in the correlation technique;

Fig. 5 is the flow chart that ISR descends CS paging method when the Gs incidence relation is between SGSN and MSC/VLR in the prior art;

Fig. 6 is the flow chart according to the short message end call method of the embodiment of the invention;

Fig. 7 is the signaling process figure according to the relevant SMS terminal call of the MSC/VLR of the embodiment of the invention;

Fig. 8 is the signaling process figure that carries out SMS terminal call according to the MSC/VLR of the embodiment of the invention by the EPS network;

Fig. 9 is the signaling process figure that passes through the SMS terminal call of UMTS/GSM network PS field paging UE according to the MSC/VLR of the embodiment of the invention;

Figure 10 is the signaling process figure according to SMS terminal call under the situation that has incidence relation and ISR activation between the MME of the embodiment of the invention and the MSC/VLR;

Figure 11 is the signaling process figure according to SMS terminal call under the situation that has incidence relation and ISR activation between the SGSN of the embodiment of the invention and the MSC/VLR;

Figure 12 be according to the present invention in another kind of MSC/VLR carry out the signaling process figure of SMS terminal call by the UMTS/GSM network PS field;

Figure 13 is the block diagram according to the SMS terminal paging system of the embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.

Method embodiment

In the present embodiment, provide a kind of short message end call method, be used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities.Fig. 6 is the flow chart according to the short message end call method of the embodiment of the invention, and as shown in Figure 6, said method comprises:

The grouping domain network element transtation mission circuit territory paging request message that step S602, MSC/VLR write down in incidence relation, and in the CS paging request message, carry the short message service indication information;

That is to say, MSC/VLR sends a CS beep-page message for corresponding M ME and/or SGSN (above-mentioned grouping domain network element) according to the Gs related information of wherein preserving by SGs and/or Gs interface, in message, carry a newly-increased optional parameters (above-mentioned short message indication information), being used for notifying MME, SGSN and UE current is short message service, thereby make these network elements know, do not need to fall back to UMTS/GSM CS and carry out as other service needed such as audio calls supporting that short message is directly delivered under the situation of UE by packet field network (comprising UMTS/GSM PS and EPS).

Wherein, the preferred embodiment of newly-increased short message indication information is to use type of service to realize, also can identify by other fields such as paging reasons, in subsequent descriptions of the present invention, all use type of service to represent, the reason that the short message indication information uses type of service or paging reason to represent is, type of service or paging reason not only can be represented short message service, and can represent calling, location service and supplementary service etc.When MSC/VLR carries out the CS service paging, MSC/VLR carries SGSN and/or MME with present type of service information with type of service or paging cause information by the CS paging, and exhale UE eventually, receive the business information that these network elements of paging request just can obtain the current CS of carrying out paging exactly;

And above-mentioned short message service indication information is the Optional Field in the CS paging request message, and grouping domain network element under the situation of not supporting the short message service indication information, is ignored this Optional Field when receiving the CS paging request message.

Support short message to be delivered to EPS and/or UMTS/GSM PS territory at MSC/VLR by SGs and/or Gs interface, pass through under the function situation of UE by NAS message then, always carry this newly-added information field in the CS beep-page message that MSC/VLR sends, MSC/VLR does not need to know that target P S network element is SGSN or MME, and the information such as protocol version of target P S network element support.After SGSN and/or MME receive the CS paging request message,,, ignore this information field, continue to handle the CS paging request message because be the optional information field if do not support this newly-added information field.

Step S604, grouping domain network element receiving circuit territory paging request message is obtained short message indication information wherein, and carries out corresponding SMS terminal call flow process according to described short message indication information.

Below, above-mentioned processing procedure is elaborated.Fig. 7 is the relevant SMS terminal call flow chart of MSC/VLR among the present invention.Flow process may further comprise the steps as shown in Figure 7:

Step 701, UE is attached to network (comprise EPS and/or UMTS/GSM network, ISR activates or unactivated various application scenarios);

Step 702-704, SC has short message need send to UE, beginning SMS terminal call flow process, and SC, SMS-GMSC, HLR/HSS are mutual by corresponding flow process, SMS-GMSC obtains the MSC/VLR information that UE carries out the CS registration, and SMS-GMSC issues target MSC/VLR with short message;

Step 705, MSC/VLR receives short message, by Gs or SGs interface paging UE, in the CS paging request message, all carry the newly-added information field type of service of an expression short message indication information, this information field is that condition is optional, do not support this information field if receive the PS domain network element of CS paging request message, ignore this information field, continue normal process CS paging request message;

Step 706, MME or SGSN receive the CS paging, at EPS and/or PS territory paging UE, content of short message are sent to UE, and UE returns short message status report information, and MSC/VLR receives the short message status report;

Step 707-708, MSC/VLR are to the SMS-GSMC report that sends SMS message, and SMS-GMSC sends SMS message to SC and sends report, and the SMS terminal call flow process finishes.

Preferably, above-mentioned grouping domain network element is a mobile management entity, and, receive the CS paging request message at grouping domain network element, and obtain after wherein the short message indication information, also comprise: the state of mobile management entity judges terminal, wherein, the state of terminal comprises idle condition and connection status.

In addition, in the mobile management entity judges terminal is under the situation of idle condition, further comprise: mobile management entity is that EUTRAN sends beep-page message to terminal by the global system for mobile communications wireless access network of evolution, wherein, carry or do not carry the short message service indication information in the beep-page message; In response to beep-page message, terminal sends service request to mobile management entity; Mobile management entity receives service request to mobile switching center transtation mission circuit territory page response or business request information.

Preferably, in the mobile management entity judges terminal is under the situation of connection status, further comprise: mobile management entity is directly to mobile switching center transtation mission circuit territory page response or business request information, the not operation of carrying out call terminal and transmitting described CS paging request message to the GPRS serving GPRS support node.

Below, technique scheme is elaborated.Fig. 8 is the flow chart that MSC/VLR carries out SMS terminal call among the present invention by the EPS network.Interaction flow is introduced in Fig. 7 in detail between MSC/VLR, SMS-GMSC, HSS/HLR, the SC, no longer repeats herein.Flow process shown in Figure 8 comprises following steps:

Step 801, MSC/VLR receives short message, carries out SMS terminal call, and MSC/VLR sends the CS paging to MME, comprises type of service in the message;

Step 802, MME receives the CS paging request message that MSC/VLR sends, if judge the current Idle state that is in of UE, the eNodeB that serves to the sub-district that all the tracking area tabulations for the current registration of UE comprise sends beep-page message paging UE.Carry or do not carry the short message service indication information in the beep-page message.Beep-page message can be paging (type of service) or beep-page message that does not carry type of service or paging (CS territory paging indication information, type of service) when implementing.Need to prove, if UE current be not to be in Idle state, but be in connected state, signaling is connected and exists between MME and the UE, step 802-804 omits, directly execution in step 805;

Step 803, all eNodeB that receive beep-page message send paging (type of service) or send by air interface and do not carry traffic type information beep-page message or paging (CS territory paging indication information, type of service) paging UE;

Step 804, UE receives beep-page message, sends service request to MME, and notice MME paging begins to carry out business to the UE request;

Step 805, MME receives the service request that UE sends; Perhaps receive the CS paging request of the short message service that MSC/VLR sends, judge that current UE is in connection status, MME sends CS page-response message or business request information to MSC/VLR under the both of these case, finished signaling between notice MSC/VLR UE and the MME and connected foundation, request MSC/VLR begins to transmit short message;

Step 806, MSC/VLR receives CS page-response message or the business request information that MME sends, and the information of upgrading in the Gs incidence relation of its preservation is to send the relevant information of the MME of message.

In the specific implementation, MSC/VLR comprises after receiving CS page-response message or business request information from MME: (1) judges the current short message service that has, and is the MME relevant information with the information updating of preserving in the Gs association; (2) do not judge, receive the CS page-response message or the business request information of success, all upgrading the information of preserving in the Gs association is the MME relevant information; (3) not between MME and MSC/VLR, upgrading operation if judge current Gs association, is the MME relevant information with the information updating of preserving in the Gs association; (4) judgement is current has short message service and current Gs association not between MME and MSC/VLR, upgrades operation, is the MME relevant information with the information updating of preserving in the Gs association.

MSC/VLR also can not upgrade the Gs related information, only need know that current UE is current in the network at the MME place that sends message, and short message need send to this MME.

MSC/VLR encapsulates content of short message according to the mode that defines in the short message related protocol, sends downlink data message for the MME that sends CS page response or service request by the SGs interface then, comprises short message in the message;

Step 807-809, MME receive the downlink data message that MSC/VLR sends, and the encapsulation short message transmits short message to UE by descending NAS message in NAS message; UE receives short message, and sending SMS message to MME by up NAS message sends report; MME receives the short message transmission report that UE sends, and sends upstream data message by the SGs interface to MSC/VLR, wherein comprises short message and sends report.

Below, technique scheme is elaborated.Fig. 9 is the SMS terminal call flow process that MSC/VLR passes through UMTS/GSM network PS field paging UE among the present invention.This flow process and prior art flow process have increased the type of service other step in the CS beep-page message of SGSN except MSC/VLR sends to identical.Interaction flow is introduced in Fig. 7 in detail between MSC/VLR, SMS-GMSC, HSS/HLR, the SC, no longer repeats herein.Flow process shown in Figure 9 comprises following steps:

Step 901, MSC/VLR receives short message, carries out SMS terminal call, and MSC/VLR sends the CS paging to SGSN, comprises type of service in the message;

Step 902-906, SGSN receive the CS paging request message that MSC/VLR sends, and follow-up flow process is identical with prior art, and MSC/VLR receives the CS message that pages reply from UMTS/GSM network C S territory, and carries out the short message transmittance process between the UE.SGSN also can pass to traffic type information UTRAN/GERAN and UE in this process, because the method for business transferring type information is not minimum to the existing system influence, so suggestion does not pass to traffic type information UTRAN/GERAN and UE, the situation that business transferring type information is not given UTRAN/GERAN and UE during describing, follow-up other related procedure of the present invention is only described all.

In addition, be in idle condition and under the ISR activation situation in the mobile management entity judges terminal, further comprise: mobile management entity is to GPRS serving GPRS support node repeat circuit territory paging request message, wherein, carry or do not carry the short message service indication information in the message.

In addition, above-mentioned mobile management entity is after the paging request message of GPRS serving GPRS support node repeat circuit territory, and further comprise: the GPRS serving GPRS support node is the GERAN/UTRAN call terminal by traditional global mobile communication system/general mobile communication system; Terminal receives after the paging by GERAN/UTRAN to mobile switching center transtation mission circuit territory page response; In response to page response, mobile switching center sends SMS message to terminal.

Below, technique scheme is elaborated.Figure 10 is the SMS terminal call flow chart of the present invention when the SGs incidence relation is implemented between MME and MSC/VLR and under the application scenarios of ISR activation.Interaction flow is introduced in Fig. 7 in detail between MSC/VLR, SMS-GMSC, HSS/HLR, the SC, no longer repeats herein.Also to be present embodiment activate and UE is in flow process under the Idle state scene at the EPS network at ISR Figure 10.Embodiment illustrated in fig. 10 ISR activate and UE the EPS network be in when implementing under the connected state scene flow process as shown in Figure 8.

Flow process shown in Figure 10 comprises following steps:

Step 1001, MSC/VLR receives short message, carries out SMS terminal call, and MSC/VLR sends the CS paging to MME, comprises type of service in the message;

Step 1002, MME receives the CS paging request message that MSC/VLR sends, and initiates the SMS terminal call flow process at the EPS network.If MME judges the current Idle state that is in of UE, the eNodeB that serves to the sub-district that all the tracking area tabulations for the current registration of UE comprise sends beep-page message paging UE, carries or do not carry type of service in the message.Beep-page message can be paging (type of service) or beep-page message that does not carry type of service or paging (CS territory paging indication information, type of service) when implementing.If UE is current is not to be in Idle state, but is in connected state, and signaling is connected and exists between MME and the UE, and step 1002-1004 omits, and directly carry out step 1005;

Step 1003, beep-page message or (CS territory paging indication information, type of service) that all eNodeB that receive beep-page message send paging (type of service) by air interface or do not carry type of service are come paging UE;

Step 1004, UE receives beep-page message and sends service request to MME;

Step 1005, MME receives the service request that UE sends; Perhaps the MME CS paging request that receives the short message service that MSC/VLR sends judges that current UE is in connection status, MME sends CS page response or business request information to MSC/VLR under the both of these case, finished signaling between notice MSC/VLR UE and the MME and connected foundation, request MSC/VLR begins to transmit short message;

Step 1006, MSC/VLR receives CS page-response message or the business request information that MME sends, and the information of upgrading in the Gs incidence relation of its preservation is to send the relevant information of the MME of message.Handle similar about step 706 among renewal Gs incidence relation and Fig. 7.MSC/VLR encapsulates content of short message according to the mode that defines in the short message related protocol, sends downlink data message for the MME that sends CS page response or business request information by the SGs interface then, comprises short message in the message;

Step 1007-1009 is identical with prior art.Transmit short message and short message transmission report between MME and the UE.MME sends upstream data message by the SGs interface to MSC/VLR, wherein comprises short message and sends report.

When MME receives the CS paging request message that MSC/VLR sends, if but judging ISR activates the current connected state that is in of UE, MME can determine UE current be in the EPS network insertion, only need carry out above-mentioned steps 1002-1009 to be shown in the SMS terminal call flow process that the EPS network carries out.If ISR activates and the current idle condition that is in of UE, because whether this kind situation MME can not determine UE current in the EPS network insertion, MME knows the SMS terminal call flow process that not only will initiate the EPS network, and will notify the SMS terminal call flow process of the SGSN initiation related with oneself carrying out ISR at the UMTS/GSM network.MME transmits the CS paging request message to SGSN, and notice SGSN carries out the CS paging by the UMTS/GSMPS territory.ISR do not have to activate or the current situation that is in connection status of UE under, the following step B-1002-1007 does not carry out.

The CS paging of the place EPS network that MME shown in the following step B-1002-1007 and the above-mentioned steps 1002-1009 initiates can carry out according to sequencing in the specific implementation, also can carry out simultaneously, and suggestion is carried out simultaneously, can accelerate paging velocity like this.

Step B-1002, MME transmits CS paging request to SGSN, can comprise traffic type information in the message and also can not comprise traffic type information;

Step B-1003-1006, SGSN receive the CS paging request that MME sends, and initiate to carry out the CS paging in UMTS/GSM PS territory.SGSN sends an appropriate C S beep-page message to GERAN/UTRAN.Follow-up processing flow is identical with the interior CS paging of PS network in the prior art;

Step B-1007, MSC/VLR receive the CS page response, begin to carry out the short message transmittance process between MSC/VLR and the UE.

Preferably, mobile switching center sends after the described CS paging request message, and the GPRS serving GPRS support node sends the CS beep-page message by GERAN/UTRAN to terminal.

Preferably, mobile switching center sends after the described CS paging request message, when the GPRS serving GPRS support node carries out above-mentioned CS paging operation, further comprise: the GPRS serving GPRS support node judges whether terminal is in idle condition and is the ISR activation.

In addition, judge that at the GPRS serving GPRS support node terminal is the ISR activation and is under the situation of idle condition, further comprise: the GPRS serving GPRS support node is to mobile management entity repeat circuit territory paging request message, and carries the short message service indication information in the CS paging request message.

In addition, be under the situation of idle condition in the mobile management entity judges terminal, further comprise: mobile management entity sends beep-page message by EUTRAN to terminal, wherein, carries or do not carry the short message service Indication message in the beep-page message; In response to beep-page message, terminal sends service request to mobile management entity; Mobility Management Entity is to mobile switching center transtation mission circuit territory page response or business request information.

Below technique scheme is elaborated.Figure 11 is the SMS terminal call flow chart of the present invention when the Gs incidence relation is implemented between SGSN and MSC/VLR and under the application scenarios of ISR activation.Interaction flow is introduced in Fig. 7 in detail between MSC/VLR, SMS-GMSC, HSS/HLR, the SC, no longer repeats herein.Also to be present embodiment activate and UE is in flow process under the Idle state scene at UMTS/GSM PS network at ISR Figure 11.Embodiment illustrated in fig. 11 ISR activate and UE UMTS/GSM PS network be under the connected state scene flow process as shown in Figure 9.Flow process shown in Figure 11 comprises following steps:

Step 1101, MSC/VLR receives short message, carries out SMS terminal call, and MSC/VLR sends the CS paging to SGSN, comprises type of service in the message;

Step 1102-1106, SGSN receive the CS paging request message that MSC/VLR sends, and initiate the SMS terminal call flow process at the UMTS/GSM network.Identical in follow-up flow process and the prior art, MSC/VLR receives the CS message that pages reply from UMTS/GSM network C S territory, and carries out the short message transmittance process between the UE.

Need to prove, when SGSN receives the CS paging request message that MSC/VLR sends, if but judging ISR activates the current connected state that is in of UE, SGSN can determine UE current be in the UMTS/GSM network insertion, only need to carry out the SMS terminal call flow process of UMTS/GSM network shown in the above-mentioned steps 1102-1106.If ISR activates and the current Idle state that is in of UE, because whether this kind situation SGSN can not determine UE current in the UMTS/GSM network insertion, SGSN knows the SMS terminal call flow process that not only will initiate the UMTS/GSM network, and will notify the SMS terminal call of the MME initiation related with oneself carrying out ISR at the EPS network.SGSN transmits the CS paging request message to MME, comprises traffic type information in the message, and notice MME carries out SMS terminal call by the EPS network.If ISR does not activate or the current connection status that is in of UE, do not carry out the following step B1102-1110.The CS paging of its place network that SGSN shown in step B1102-1110 and the above-mentioned 1102-1106 initiates can carry out according to sequencing in the specific implementation, also can carry out simultaneously, and suggestion is carried out simultaneously, can accelerate paging velocity like this.

Step B-1102, SGSN transmits CS paging request to MME, comprises traffic type information in the message;

Step B-1103, MME receives the CS paging request message that SGSN transmits, if the current Idle state that is in of UE, MME sends paging (type of service) or does not carry the beep-page message or paging (CS territory paging indication, type of service) the message paging UE of type of service to the eNodeB of the sub-district service that comprises for all tracking areas of the current registration of UE; If UE is current is not to be in Idle state, but is in connected state, has existed signaling to be connected between UE and the MME, not execution in step B-1103-1105, directly execution in step B-1106;

Step B-1104, all eNodeB that receive beep-page message send paging (type of service) by air interface or do not carry the beep-page message or paging (CS territory paging indication, type of service) the paging UE of type of service;

Step B-1105, UE receive beep-page message and send service request to MME;

Step B-1106, MME receive the service request that UE sends; Perhaps receive the CS paging request of the short message service that SGSN sends, judge that current UE is in connection status, MME sends CS page response or business request information to MSC/VLR under the both of these case;

Step B-1107, MSC/VLR receive CS page response or the business request information that MME sends, and the information of upgrading in the Gs incidence relation of its preservation is to send the relevant information of the MME of message.Handle similar about step 706 among renewal Gs incidence relation and Fig. 7.MSC/VLR encapsulates content of short message according to the mode that defines in the short message related protocol, sends downlink data message for corresponding M ME by the SGs interface then, comprises short message in the message;

Step B-1108-1110 is identical with prior art.Transmit short message and short message transmission report between MME and the UE.MME sends upstream data message by the SGs interface to MSC/VLR, wherein comprises short message and sends report.

In addition, after the paging request message of MSC/VLR transtation mission circuit territory, further comprise: the GPRS serving GPRS support node sends beep-page message by UTRAN/GERAN to terminal, wherein, carries or do not carry the short message service Indication message in the beep-page message; Terminal sends business request information to SGSN, and SGSN sends CS page response or business request information to MSC/VLR; In response to page response or business request information, MSC/VLR sends the downlink data message that has encapsulated content of short message to SGSN.SGSN receives short message CS paging, by NAS message content of short message is transparent to UE, and concrete handling process as shown in figure 12.During the actual enforcement of this method, SGSN need compare big modification.This flow process comprises following steps:

Step 1201, SGSN receives the CS paging of short message, and this message has two sources, step 1201-A and 1201-B;

Step 1201-A, Gs is associated between MSC/VLR and the SGSN among the MSC/VLR, and during SMS terminal call, MSC/VLR sends the CS paging to SGSN, comprises traffic type information in the message;

Step 1201-B, Gs is associated between MSC/VLR and the MME among the MSC/VLR, and during SMS terminal call, MSC/VLR sends the CS paging to MME, comprises traffic type information in the message.MME receives the CS paging, judges that ISR activates and UE is in Idle state, transmits the CS paging and gives SGSN;

Step 1202, if SGSN judges that UE is in Idle state, send out paging (type of service) or do not carry the beep-page message of traffic type information or paging (CS territory paging indication, type of service) message to UTRAN/GERAN, notice UTRAN/GERAN begins paging UE.If UE is in connected state, step 1202-1204 omits, and directly carry out step 1205;

Step 1203, UTRAN/GERAN receives paging, sends paging (type of service) or does not carry the beep-page message or paging (CS territory paging indication, type of service) the message paging UE of type of service by air interface;

Step 1204, UE receives paging, sends service request to SGSN;

Step 1205, SGSN receives the service request that UE sends; Perhaps receive the CS paging request of the short message service that MSC/VLR sends, judge that current UE is in connection status; Perhaps receive the CS paging request of the short message service of MME forwarding, judge that current UE is in connection status, SGSN sends CS page response or business request information to MSC/VLR under these three kinds of situations;

Step 1206, MSC/VLR receives CS page response or the business request information that SGSN sends, and the information of upgrading in the Gs incidence relation of its preservation is to send the relevant information of the SGSN of message.Handle similar about step 706 among renewal Gs incidence relation and Fig. 7.MSC/VLR encapsulates content of short message according to the mode that defines in the short message related protocol, sends downlink data message for corresponding SGSN by Gs interface then, comprises short message in the message;

Step 1207, SGSN receives the downlink data message that MSC/VLR sends, and the encapsulation short message transmits content of short message to UE by descending NAS message in NAS message;

Step 1208, UE receives short message, sends a short message by up NAS message to SGSN and sends report;

Step 1209, SGSN receives the short message transmission report that UE sends, and sends upstream data message by Gs interface to MSC/VLR, wherein comprises short message and sends report.The present invention is not only applicable to the CS service paging method (the present invention be applied under Fig. 4 and the CS service paging method shown in Figure 5 corresponding Figure 10 and Figure 11) respectively under Fig. 4 and the ISR shown in Figure 5, and can be applicable to when ISR activates at MSC/VLR preservation simultaneously and MME and two Gs incidence relations of SGSN, when carrying out the CS paging MSC/VLR according to incidence relation simultaneously to the method for MME and two CS pagings of SGSN initiation.The method that this MSC/VLR sets up double connected is to be initiated the method for two SMS terminal call flow processs to MME and SGSN by the MSC/VLR while when SMS terminal call.Because under the method for above-mentioned double connected, even UE has been in connected state at SGSN, because MSC/VLR does not know that UE is whether under SGSN, so in the prior art during SMS terminal call, MSC/VLR always can send to MME by downlink data with content of short message, and MME just can delete the short message of buffer memory during less than UE in paging.And after using the present invention, MSC/VLR just initiates paging at EPS and two networks of UMTS/GSM to SGSN and the MME professional CS beep-page message that sends SMS message, and just short message can be sent to MME at definite UE during at the EPS network.So under the implementation method of above-mentioned double connected, use short message end call method of the present invention, more can save the MME buffer memory, reduce the processing load of network elements such as MSC/VLR, and the signaling traffic load of network.

The inventive method not only is applied to the flow process of SMS terminal call shown in Fig. 7-12, and is applicable to the service final call flow process that all are identical with above-mentioned flow process.

In the above embodiments, by increasing traffic type information in the CS beep-page message that sends to the PS domain network element at MSC/VLR, make and do not transmitting short message under the situation of EPS network, the EPS network can know that the business of the current CS of carrying out paging is a short message, UE does not need to fall back to UMTS/GSM network C S territory and removes to receive short message, but transmit by the EPS network, and if what carry out the CS paging is to need to fall back to UMTS/GSM network C S territory under other professional situations such as audio call to carry out.

And, by in the CS beep-page message, carry business information and revise the EPS network the SMS terminal call flow process (as, MSC/VLR receives the CS page response from MME and knows that paging just sends to MME with short message behind UE, rather than before paging, short message is sent to MME), can avoid under the situation that ISR activates, before UE, content of short message being delivered to the EPS network, thereby the processing that increases MSC/VLR is loaded in paging, the cache resources of MME takies, and the signaling traffic load of network.

By the above embodiment of the present invention, it can also be seen that technical scheme of the present invention can help MSC/VLR Products Development and maintenance so that the handling process of MSC/VLR is consistent to a certain extent.

In addition, in the above embodiments, type of service is an Optional Field, and the PS domain network element that receives can be ignored under the situation of not supporting this field.When network design, support that the MSC/VLR of the new function of 3GPP R8 protocol version may be in MME that connects the R8 protocol version and SGSN, protocol version is less than the traditional SGSN that upgrades before also meeting 3GPP R7 and R7, MSC/VLR is receiving short message like this, when needing by PS territory paging UE, not needing to distinguish the PS domain network element that sends to CS message is SGSN or MME, and the version information of SGSN, only carries the CS paging of traffic type information to these PS domain network elements with unified the transmission.And the PS domain network element also can correctly be handled even without upgrading SGSN when receiving the CS paging, can not lead to errors.Little to the influence of PS domain network element like this, and make the processing of MSC/VLR to be consistent, help the development and maintenance and the network design of Related product.

System embodiment

In the present embodiment, provide a kind of SMS terminal paging system, be used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities.Except comprising short message service center, short message service mobile switch gateway, home subscriber server and wireless network (GERAN/UTRAN/EUTRAN), also comprise entity shown in Figure 13 in the system.Figure 13 is according to the block diagram of the SMS terminal paging system of the embodiment of the invention, comprises in the system shown in Figure 13:

Mobile switching center 10 is used for transtation mission circuit territory paging request message.Wherein, carry the short message service indication information in the CS paging request message;

Grouping domain network element 20 is used for carrying out corresponding SMS terminal call flow process according to the short message indication information.Under the situation that receives service request by packet domain from terminal to mobile switching center transtation mission circuit territory page response or business request information.Wherein, grouping domain network element is mobile management entity or GPRS serving GPRS support node, and packet domain comprises the packet domain of evolution.

In addition, mobile switching center 10 further comprises: be used for receiving circuit territory page response or business request information, and via grouping domain network element to the terminal content that sends SMS message.

And, be under the situation of mobile management entity at grouping domain network element, also comprise following processing:

Before mobile management entity transtation mission circuit territory page response or business request information, also comprise: the state of mobile management entity judges terminal, wherein, the state of terminal comprises idle condition and connection status.

In the mobile management entity judges terminal is under the situation of connection status, further comprise: mobile management entity is directly to mobile switching center transtation mission circuit territory page response or business request information, do not carry out call terminal and to the operation of GPRS serving GPRS support node repeat circuit territory paging request message.

Preferably, in the mobile management entity judges terminal is under the situation of idle condition, further comprise: (one) mobile management entity is that EUTRAN sends beep-page message to terminal by the global system for mobile communications wireless access network of evolution, wherein, carry or do not carry the short message service Indication message in the beep-page message; (2) in response to beep-page message, terminal sends service request to mobile management entity.

Preferably, be in idle condition in the mobile management entity judges terminal, and judge that further terminal is under the situation of ISR activation, further comprise: mobile management entity is to GPRS serving GPRS support node repeat circuit territory paging request message, wherein, carry or do not carry the short message service indication information in the message.

Preferably, above-mentioned mobile management entity is after the paging request message of GPRS serving GPRS support node repeat circuit territory, further comprise: (one) GPRS serving GPRS support node is that GERAN/UTRAN sends beep-page message to terminal by traditional global mobile communication system/general mobile communication system, wherein, carry or do not carry the short message service indication information in the beep-page message; (2) in response to beep-page message, terminal sends service request or terminal to the GPRS serving GPRS support node and inserts to mobile switching center from the circuit domain of traditional global mobile communication system/general mobile communication system and send page-response message.

At described grouping domain network element is under the situation of GPRS serving GPRS support node, preferably, after the paging request message of mobile switching center transtation mission circuit territory, further comprises:

(1) the GPRS serving GPRS support node sends the CS beep-page message by UTRAN/GERAN to terminal, wherein, carries or do not carry the short message service Indication message in the beep-page message; (2) terminal sends the CS page-response message by UTRAN/GERAN to mobile switching center; (3) in response to page response, mobile switching center is to the terminal content that sends SMS message.

Preferably, when the GPRS serving GPRS support node carries out aforesaid operations, judging that terminal is under idle condition and the situation for the ISR activation, further comprise: the GPRS serving GPRS support node is to mobile management entity repeat circuit territory paging request message, and carries the short message service indication information in the CS paging request message.

Preferably, be under the situation of idle condition in the mobile management entity judges terminal, further comprise: (one) mobile management entity sends beep-page message by EUTRAN to terminal, wherein, carries or do not carry the short message service Indication message in the beep-page message; (2) in response to beep-page message, terminal sends service request to mobile management entity; (3) in response to business request information, mobile management entity sends CS page response or business request information to mobile switching center.

Preferably, be under the situation of connection status in the mobile management entity judges terminal, mobile management entity sends CS page response or business request information to mobile switching center, without call terminal.

In sum, by means of technical scheme of the present invention, by in the CS paging, increasing traffic type information, make that the SMS terminal call flow process can both correctly be carried out in all cases, solved in the prior art problem of SMS terminal call under the ISR, and, under the situation that ISR activates, by after UE, again content of short message being delivered to the EPS network in paging, reduced the processing load of network, taking and signaling traffic load of memory source, and the processing that makes MSC/VLR receive short message can be consistent, and helps the development and maintenance and the network design of Related product.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a short message end call method is used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities, it is characterized in that described method comprises:

The grouping domain network element transtation mission circuit territory paging request message that mobile switching center writes down in incidence relation, and in described CS paging request message, carry the short message service indication information;

Described grouping domain network element receives described CS paging request message, obtains described short message indication information wherein, and carries out corresponding SMS terminal call flow process according to described short message indication information.

2. method according to claim 1 is characterized in that, described grouping domain network element is a mobile management entity.

3. method according to claim 2 is characterized in that, receives described CS paging request message at described grouping domain network element, and obtains after wherein the described short message indication information, further comprises:

The state of the described terminal of described mobile management entity judges, wherein, the state of described terminal comprises idle condition and connection status.

4. method according to claim 3 is characterized in that, is under the situation of connection status in the described terminal of described mobile management entity judges, further comprises:

Described mobile management entity is directly to described mobile switching center transtation mission circuit territory page response or business request information, the not operation of carrying out call terminal and transmitting described CS paging request message to the GPRS serving GPRS support node.

5. method according to claim 3 is characterized in that, is under the situation of idle condition in the described terminal of described mobile management entity judges, further comprises:

Described mobile management entity is that EUTRAN sends beep-page message to described terminal by the global system for mobile communications wireless access network of evolution, wherein, carries or do not carry described short message service Indication message in the described beep-page message;

In response to described beep-page message, described terminal sends service request to described mobile management entity;

Receive described service request, described mobile management entity is to described mobile switching center transtation mission circuit territory page-response message.

6. method according to claim 3 is characterized in that, is in idle condition in the described terminal of described mobile management entity judges, and judges that further described terminal is under the ISR activation situation, further comprises:

Described mobile management entity is transmitted described CS paging request message to the GPRS serving GPRS support node, wherein, carries or do not carry described short message service indication information in the described message.

7. method according to claim 6 is characterized in that, described mobile management entity further comprises after described GPRS serving GPRS support node is transmitted described CS paging request message:

Described GPRS serving GPRS support node is that GERAN/UTRAN sends beep-page message to described terminal by traditional global mobile communication system/general mobile communication system, wherein, does not carry described short message service indication information in the described beep-page message;

In response to described beep-page message, described terminal sends page-response message by traditional global mobile communication system/general mobile communication system to described mobile switching center;

Described mobile switching center receives page-response message, and short message is sent to described terminal.

8. method according to claim 1 is characterized in that, described grouping domain network element is the GPRS serving GPRS support node.

9. method according to claim 8 is characterized in that, described mobile switching center sends after the described CS paging request message, further comprises:

Described GPRS serving GPRS support node sends described beep-page message by described GERAN/UTRAN to described terminal, wherein, does not carry described short message service indication information in the described beep-page message;

In response to described beep-page message, described terminal by described GERAN/UTRAN to described mobile switching center transtation mission circuit territory page-response message;

In response to described page response, described mobile switching center sends described short message to described terminal.

10. method according to claim 8 is characterized in that further comprising when carrying out the described operation of claim 9: described GPRS serving GPRS support node judges whether described terminal is in idle condition and ISR activates.

11. method according to claim 10 is characterized in that, judges that at described GPRS serving GPRS support node described terminal is under idle condition and the situation for the ISR activation, further comprises:

Described GPRS serving GPRS support node is transmitted described CS paging request message to mobile management entity, and carries described short message service indication information in described CS paging request message.

12. method according to claim 11 is characterized in that, further comprises,

Described Mobility Management Entity is judged the state of described terminal, and wherein, described state comprises idle condition and connection status.

13. method according to claim 12 is characterized in that, is under the situation of idle condition in the described terminal of described mobile management entity judges, further comprises:

Described mobile management entity sends beep-page message by EUTRAN to described terminal, wherein, carries or do not carry described short message service Indication message in the described beep-page message;

In response to described beep-page message, described terminal sends described service request to described mobile management entity;

Receive described service request, described Mobility Management Entity is to mobile switching center transtation mission circuit territory page response or business request information.

14. method according to claim 12 is characterized in that, is under the situation of connection status in the described terminal of described mobile management entity judges, further comprises:

Described mobile management entity is to mobile switching center transtation mission circuit territory page response or business request information, without call terminal.

15. according to each described method of claim 1 to 14, it is characterized in that, described short message service indication information is the Optional Field in the described CS paging request message, described grouping domain network element is when receiving described CS paging request message, under the situation of not supporting described short message service indication information, ignore described Optional Field.

16., it is characterized in that described short message service indication information is represented one of at least by following: type of service, paging reason according to each described method of claim 1 to 14.

17. SMS terminal paging system, be used for exhaling eventually short message to having the terminal that inserts two kinds of wireless network abilities, described system comprises short message service center, short message service mobile switch gateway, home subscriber server and wireless network (GERAN/UTRAN/EUTRAN), it is characterized in that described system also comprises:

Mobile switching center is used for transtation mission circuit territory paging request message, wherein, carries the short message service indication information in the described CS paging request message;

Grouping domain network element is used for carrying out corresponding SMS terminal call flow process according to described short message indication information.Under the situation that receives service request by packet domain from terminal to described mobile switching center transtation mission circuit territory page-response message, wherein, described grouping domain network element is mobile management entity or GPRS serving GPRS support node, and described packet domain comprises the packet domain of evolution.

18. system according to claim 17 is characterized in that, described mobile switching center further comprises:

Be used to receive the CS paging response message that described grouping domain network element sends, and send described content of short message to described terminal via described grouping domain network element;

Be used for the described CS paging response message that receiving terminal sends by circuit domain, and send content of short message to described terminal.