CN102036421A - Processing method and system of terminal, base station and circuit field business - Google Patents

Abstract

The invention discloses a processing method and system of a terminal, a base station and circuit field business. The system comprises a terminal, an eNode B of a long-term evolution (LTE) system connected with the terminal through a wireless interface, and a mobile switching center (MSC)/ a visitor location register (VLR) of a core network, wherein the eNode B is connected with the core network through the interface, and the eNode B converts a circuit region business mutual message proceeding between the terminal and the core network by using the interface. Through the invention, the user terminal can acquire CS business directly through the eNode B of the LTE system, and the problem of increasing the time delay or head information of the control surface and the user surface caused by adopting the prior technical scheme is solved.

Description

The processing method of terminal, base station and circuit domain business and system

Technical field

The present invention relates to the communications field, in particular to the processing method and the system of a kind of terminal, base station and circuit domain business.

Background technology

The third generation mobile partner plans (3rd Generation partnership project, abbreviate 3GPP as) global system for mobile telecommunications/enhanced data rates for gsm evolution technology (Global system for Mobile Communication/Enhanced Data Rate forGSM Evolution Radio Access Network, abbreviate GERAN as) communication system or UMTS Terrestrial radio access network (UMTS Terrestrial Radio AccessNetwork, abbreviating UTRAN as) communication system is widely used in the world, a major reason of its success is circuit domain (the Circuit Switch that can provide traditional, abbreviate CS as) professional (service), because therefore one of CS service business that to be the user the most frequently used also is the important source that operator reaches operation income in the future now.

GERAN and UTRAN system can provide data packet traffic (PacketSwitch service abbreviates PS service as) simultaneously.But along with the develop rapidly of information industry, the PS service that GERAN and UTRAN can provide can't satisfy the development of various industries.3GPP has carried out technology evolution on the said system original base, such as the HSPA+ technology.Meanwhile 3GPP has also formulated based on OFDM (OrthogonalFrequency Division Multiplexing, abbreviate OFDM as) standard criterion of the new wireless telecommunications Long Term Evolution (Long-Term Evolution abbreviates LTE as) of technology.The LTE system expands to up 50M and descending 100M to the service bandwidth of wave point, and the time delay of wave point packet foreshortens to 5 milliseconds.

Because the LTE system only supports the PS business.Therefore working as terminal need obtain traditional CS service under the LTE system, for example, speech business has only so by IP multimedia subsystem, IMS (IP Multimedia Core Network Subsystem abbreviates IMS as) system and can realize.Though the standard criterion of IMS system is ripe at 3GPP, and is not extensive in the application of industrial quarters, and cost is than higher.In addition, as wireless access technology system (the Radio AccessTechnology of user at LTE system and support CS service, abbreviate RAT as), for example, when roaming between GERAN system or the UTRAN system, need IP phone (Voice over IP is called for short VOIP) that network and terminal support realize based on IMS and based on the handoff procedure between the speech business of the CS service of GERAN or UTRAN system.The present scheme SRVCC of 3GPP has realized above-mentioned functions, but its performance such as handover delay, break periods etc. are unsatisfactory.

For overcoming the problems referred to above, 3GPP has developed a kind of method of supporting CSservice in the LTE system in addition, that is, professional the returning of CS removed.Its fundamental method is when terminal resides in the LTE system, simultaneously by Mobility Management Entity (the MobileManagement Entity that links to each other with LTE, abbreviate MME as) and (the MobileSwitching Center of mobile switching centre, abbreviate MSC as)/VLR Visitor Location Register (Visitor LocationRegister, abbreviate VLR as) between Gs interface register, nullify processes such as authentication and position renewal.In the time of terminal active or passive initiation CS service, terminal is apprised of to transfer in the RAT system that supports CS service and is gone, method at Access Layer comprises that PS switches, and network insertion is controlled (Network Access Control abbreviates NAC as) or is redirected or the like.After terminal is got back to CS RAT, begin real CS service and set up process.The feasibility of said method is based on such hypothesis, and promptly when LTE began commercialization, the subnetwork that the RAT of CS often that begins to cover has covered obtained CS service so terminal always can be got back to CS RAT.

The method of removing for above-mentioned time also has certain defective on performance, need the regular hour because terminal is got back to CSRAT, the method that has is should the time also long, for example, terminal is redirected, because need begin a series of cell selecting and resident process from search rate.3GPP has discussed direct solution based on LTE in addition, additive method has concrete description in the related protocol of 3GPP, do not giving unnecessary details (annotate, can consult 3GPP TR23.879 Study on Circuit Switched (CS) domain services over evolvedPacket Switched (PS) access) at this.

Except that CS removed scheme for professional time, other method mainly was divided into two thinkings.A kind of is the adaptive thinking of level, promptly, in the core net of LTE with provide between the core net MSC/VLR of CS service and insert adaption function, under the prerequisite of as far as possible MSC/VLR not being made amendment, grouping domain system (Evolved Packet System abbreviates EPS as) carrying by evolution provides CS service.Adaption function wherein can pass through independent node, realizes such as interoperability function (Inter-working Function abbreviates IWF as), also may be incorporated among the MME and realizes.Another is and general access network (GeneralAccess Network, abbreviate GAN as) the similar vertically thinking of framework, promptly, comprise chain of command and user's face passage the transmission channel of the IP carrying that can set up between terminal and the EPC as CS service between foundation and carrying terminal and the MSC/VLR.

The subject matter of above-mentioned two solutions is to compare on performance with traditional CS RAT poor many.In first kind of thinking, with respect to GERAN and UTRAN system, chain of command command negotiation process and user side data transmittance process all can have more the node of 1 or 2 core net, therefore all can increase many time delays at chain of command and user's face, and need core net EPC or the MSC/VLR of LTE be upgraded.And in second kind of thinking, the time delay of chain of command and user's face has also increased, and its reason is except having increased intermediate node, also because the foundation of carrying end to end was increased to for three steps from two steps.Traditional CS service sets up process, the process of setting up that comprises the foundation and the Data-carrying of signaling bear, and second kind of thinking need be set up the signaling bear of EPS earlier, and then the Data-carrying of setting up EPS, this carrying is used as the signaling bear between UE and the MSC/VLR, sets up Data-carrying at last between UE and MSC/VLR.The another one problem of second kind of thinking is the increase of the header of chain of command and user's face, and this mainly is because the carrying between UE and the MSC/VLR is the cause that is based upon on the basis of EPS carrying.Because the size of the packet of CS service itself is also little, so in fact the increase of header has reduced the decline of the payload ratio of end-to-end carrying, has reduced the service efficiency of whole system.

Summary of the invention

At in the correlation technique when terminal need obtain traditional circuit domain business under the LTE system, adopt the prior art scheme, increase the problem of the time delay of chain of command and user's face or header and proposed the present invention, for this reason, main purpose of the present invention is to provide a kind of processing scheme of improved circuit domain business, one of to address the above problem at least.

To achieve these goals, according to an aspect of the present invention, provide a kind of terminal.

Terminal according to the present invention comprises: access protocol AS layer module is used to realize the AS layer protocol based on long evolving system; Non-access agreement NAS layer module is used to realize the NAS layer protocol of circuit domain; Coordination module, be used for by coordinating AS layer module and NAS layer module, the NAS protocol stack of supporting circuit domain business is carried on the AS protocol stack of supporting long evolving system, and uses interface and core net between eNodeB and the core net to carry out circuit domain service interaction by base station eNodeB.

Preferably, NAS layer module comprises the mobility management protocol unit, is used to realize mobility management protocol; It is one of following that NAS layer module also at least also comprises: the call control protocol unit is used to realize call control protocol; Supplementary service protocol element is used to realize the supplementary service agreement; The short-message protocol unit is used to realize short-message protocol.

Preferably, AS layer module comprises: physical layer element is used to realize physical layer protocol; The media access control layer unit is used to realize medium access control layer protocol; The radio link layer unit is used to realize the Radio Link layer protocol; Convergence layer unit is used to realize the convergence layer protocol; The radio resource control layer unit is used to realize the radio resource control layer agreement.

To achieve these goals, according to an aspect of the present invention, also provide a kind of base station eNodeB.

Base station eNodeB according to the present invention comprises: the Radio interface protocols module, and use wave point to be connected with terminal, be used to realize AS layer protocol based on long evolving system; Interface module is used to use interface to be connected with core net, and is connected with the Radio interface protocols module, and the circuit domain service interaction message between terminal and the core net is changed.

Preferably, interface module comprises: the network interface protocols module, be used to use the interface between eNodeB and the core net, and carry out the business operation based on a plurality of terminals of circuit domain business with core net; The protocol adaptation module is used for the message of the circuit domain service interaction between terminal and the core net is carried out based on the conversion between the agreement of the support of AS layer protocol and interface.

Preferably, interface module also is used to use the interface between eNodeB and the core net, carries out the business operation based on single terminal of circuit domain business with core net.

Preferably, the network interface protocols module also is used to handle the management process of the interface between eNodeB and the core net; The protocol adaptation module also is used for the part of the NAS layer protocol of the interactive messages between the MSC/VLR of terminal and core net is carried out transparent transmission.

Preferably, the protocol adaptation module also is used for the container message of the interactive messages between the MSC/VLR of terminal and core net is carried out transparent transmission.

Preferably, the protocol adaptation module comprises: the first protocol adaptation submodule, and being used for the message conversion based on the AS layer protocol that the Radio interface protocols module receives is the message based on the agreement of interface of giving core net to be sent; The second protocol adaptation submodule, being used for the message conversion based on the agreement of interface from core net is the message based on the AS layer protocol of giving terminal to be sent.

To achieve these goals, according to a further aspect in the invention, provide a kind of treatment system of circuit domain business.

The treatment system of territory business in a circuit according to the invention, comprise: the base station eNodeB of terminal, the long evolving system that is connected with terminal by wave point, the moving exchanging center MSC/VLR Visitor Location Register VLR of core net, the base station is connected by interface with core net, and the base station uses interface that the circuit domain service interaction message of carrying out between terminal and the core net is changed.

Preferably, terminal will support the non-access protocol layer NAS protocol stack of circuit domain business to be carried on the access protocol layer AS protocol stack of long evolving system, so that carry out circuit domain service interaction by eNodeB and core net.

Preferably, the circuit domain interactive messages based on the AS layer protocol of eNodeB self terminal in future is converted to the circuit domain interactive messages based on the agreement of interface, and sends to the MSC/VLR of core net; ENodeB will be converted to the circuit domain interactive messages based on the AS layer protocol from the circuit domain interactive messages based on the agreement of interface of the MSC/VLR of core net, and send to terminal.

Preferably, eNodeB carries out transparent transmission with the part of the NAS layer protocol in the interactive messages between the MSC/VLR of terminal and core net.

To achieve these goals, in accordance with a further aspect of the present invention, provide a kind of processing method of circuit domain business.

The processing method of territory business comprises in a circuit according to the invention: terminal is by the interface between the MSC/VLR of base station eNodeB in the long evolving system and core net, carry out circuit domain service interaction with core net, wherein, interface comprises one of following: Iu interface, A interface.

By the present invention, the core net MSC/VLR of the access node of the wireless network of LTE (E-UTRAN) (eNB) and existing support CS service is directly linked together, utilize the radio bearer of LTE directly to set up CS service business.Terminal solved in the correlation technique when need obtain traditional circuit domain business under the LTE system, adopt the prior art scheme, the time delay of chain of command and user's face or the problem of header have been increased, and then can be so that user terminal directly obtains the CS business by the base station of LTE system, when having overcome employing prior art scheme, increase chain of command and the time delay of user's face or the problem of header.

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 described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the system architecture diagram according to comprising of the embodiment of the invention traditional net, LTE system and core net;

Fig. 2 is in the system architecture diagram that comprises traditional net, LTE system and core net under the roaming state for terminal according to the preferred embodiment of the invention;

Fig. 3 is the chain of command schematic diagram according to the wireless protocols storehouse of the embodiment of the invention;

Fig. 4 is the user's face schematic diagram according to the wireless protocols storehouse of the embodiment of the invention;

Fig. 5 is the structural representation of the terminal (subscriber equipment) according to the embodiment of the invention;

Fig. 6 is the structural representation according to the eNodeB of the embodiment of the invention;

Fig. 7 is the flow chart according to the circuit domain service data package transmission method of the embodiment of the invention;

Fig. 8 is the flow chart of the example one according to the present invention;

Fig. 9 is the flow chart of the example two according to the present invention;

Figure 10 is the flow chart of the example three according to the present invention;

Figure 11 is the flow chart of the example four according to the present invention;

Figure 12 is the flow chart of the example five according to the present invention;

Figure 13 is the flow chart of the example six according to the present invention;

Figure 14 is the flow chart of the example seven according to the present invention;

Figure 15 is the flow chart of the example eight according to the present invention;

Figure 16 is the flow chart of the example nine according to the present invention.

Embodiment

Functional overview

Consider when terminal need obtain traditional circuit domain business in the correlation technique under the LTE system, adopt the prior art scheme, the time delay of chain of command and user's face or the problem of header have been increased, the embodiment of the invention provides a kind of circuit domain service data bag transmission plan, by the core net MSC/VLR of the base station of the wireless network of LTE (E-UTRAN) (eNodeB) and existing support CS service is directly linked together, utilize the radio bearer of LTE directly to set up CS service business.ENodeB sets up the radio bearer of LTE respectively between wave point and UE, the carrying of setting up IuUP between Iu or A interface and MSC.And user side data, for example, VoP AMR packet can transmit by the carrying and being carried between UE and the MSC of wave point of Iu interface pellucidly.

Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Embodiment

At first the framework in conjunction with Fig. 1 circuit domain service data packet transmission system is described, Fig. 1 is according to comprising of the embodiment of the invention of traditional net, the LTE system, and the system architecture diagram of core net, as shown in Figure 1, this system comprises: user terminal (UE), the LTE system, traditional wireless access system, core network system, wherein, access node (the base station of user terminal and LTE system, eNodeB shown in the figure) connects, user terminal and traditional wireless access system are (for example, the UTRAN system, the GERAN system) connect, the NodeB/RNC shown in the figure belongs to the UTRAN system, and BTS/BSC belongs to the GERAN system.Core net MSC/VLR links together by the radio network controller (RNC) and the Node B (NodeB) of Iu interface and UTRAN system, and this moment, MSC was operated in the Iu pattern.When the base station system controller (BSC) of MSC/VLR and GERAN system and base station system (BTS) when linking together, MSC is operated in the A pattern, and the 3GPP agreement also supports MSC and GERAN system to be operated in the Iu pattern when linking together at present.E-UTRAN and MME link together by the chain of command agreement (S1-CP) of S1 interface, and eNodeB and S-GW link together by the user plane protocol (S1-UP) of S1 interface.UE obtains PS service by the E-UTRAN system, and obtains CS service by the UTRAN/GERAN system.Certainly UE also can obtain PS service by UTRAN or GERAN system.In order directly to obtain CS service, link together by Iu interface or A interface between eNodeB and the MSC/VLR by the E-UTRAN system.Therefore when just can directly passing through the E-UTRAN system, UE obtained the CS business.

Fig. 2 is in the system architecture diagram that comprises traditional net, LTE system and core net under the roaming state for terminal according to the preferred embodiment of the invention.As shown in Figure 2, terminal is from domestic Public Land Mobile Nerwork (Home Public Lands Mobile Network, abbreviate HPLMN as) roam to and visit Public Land Mobile Nerwork (Visited Public Lands MobileNetwork, abbreviate VPLMN as), by home subscriber server (the Home Subscriber Server that is connected by D interface with core net among the VPLMN, abbreviate HSS as), can switch to the VPLMN system, and can obtain the CS business by the E-UTRAN system.

In order to reduce the upgrading of the MSC/VLR in the existing network is revised, the adaptive and modification of protocol layer is mainly finished on UE and eNodeB.Fig. 3 is the chain of command schematic diagram according to the wireless protocols storehouse of the embodiment of the invention.Fig. 4 is the user's face schematic diagram according to the wireless protocols storehouse of the embodiment of the invention.Wherein, user's face wireless protocols storehouse shown in Figure 4 is corresponding with chain of command protocol stack shown in Figure 3.

Suppose that eNodeB is connected by the Iu interface protocol with MSC/VLR, with the chain of command of the wireless protocols storehouse of Fig. 1 correspondence as shown in Figure 4, from vertical plane, can be divided into access protocol layer (AS layer) and non-access protocol layer (NAS layer) at the wave point upper protocol layer.Wherein the agreement of AS layer comprises from the physical (L1) agreement and begins all protocol layers up to rrc layer (comprising rrc layer).The wireless protocols of these AS layers has been reused the agreement of prior LTE system wave point, certainly at E-UTRAN with after MSC/VLR directly is connected because circuit domain business (CS service) will be provided, the agreement of AS layer needs suitable modification.The wireless protocols of NAS layer comprise from mobility management protocol (MM) and (MM) layer more than call control protocol (CC)/supplementary service agreement (SS)/short-message protocol (SMS) layer protocol.From terminal and two aspects of eNodeB this is described in detail below.

Aspect one, terminal (be also referred to as subscriber equipment, abbreviate UE as)

From the angle of UE, be on the protocol stack of the AS layer of the protocol stack carrying LTE system of the NAS layer of the original CS of support service.LTE AS layer protocol stack is described in the agreement of 3GPP36 series, and supports the NAS layer protocol stack of CS service to be described in the agreement of 24 series of 3GPP.In order to obtain CS service by LTE AS layer protocol stack, the internal interface between AS layer protocol and the NAS layer protocol need be done certain adaptive work.Below this is described in detail.

Fig. 5 is the structured flowchart of the terminal (subscriber equipment) according to the embodiment of the invention, and as shown in Figure 5, this terminal is made up of AS protocol module and NAS protocol module.Wherein, AS layer protocol module is the Access Layer agreement of LTE wireless access technology correspondence, comprise: physical (L1) agreement, medium Access Layer (MAC) agreement, radio link layer (RLC) agreement, convergence (PDCP) agreement, Radio Resource control (RRC) agreement, and the NAS layer protocol is meant the Non-Access Stratum agreement relevant with traditional C service, comprises CC (call control protocol)/SS (supplementary service agreement)/SMS (short-message protocol) layer protocol that (mobility management protocol) MM and MM layer are above.

Be used to realize based on the AS layer module of the AS layer protocol of long evolving system and be used to realize the non-access agreement NAS layer module of NAS layer protocol of circuit domain except above-mentioned, this terminal can also comprise a coordination, this Coordination module is used for by scheduling AS layer module and NAS layer module, the NAS protocol stack of supporting circuit domain business is carried on the AS protocol stack of supporting long evolving system, and uses interface and core net between eNodeB and the core net to carry out circuit domain service interaction by base station eNodeB.

Aspect two, eNodeB

From the angle of eNodeB, the agreement station of wave point need not be revised substantially, but for MSC/VLR links together, needs the function of the protocol stack of realization Iu interface or A interface.That is, eNodeB sets up the radio bearer of LTE, the carrying of setting up IuUP between Iu interface and MSC respectively between wave point and UE.And user side data, just CS service protocol data bag transmits between the MSC that is carried on UE and core net of the carrying by the Iu interface and wave point pellucidly.Here typical C S service is speech business, adopts the AMR coding protocol.

To achieve these goals,, provide a kind of base station eNodeB to comprise according to embodiments of the invention: the Radio interface protocols module, use wave point to be connected with terminal, be used to realize AS layer protocol based on long evolving system; Interface module is used to use interface to be connected with core net, and is connected with the Radio interface protocols module, and the circuit domain service interaction message between terminal and the core net is changed.

Fig. 6 is the structural representation according to the eNodeB of the embodiment of the invention, as shown in Figure 6, interface module comprises: the network interface protocols module is used to use the interface between eNodeB and the core net, carry out the business operation based on a plurality of terminals (that is public flow process) of circuit domain business with core net; The protocol adaptation module is used for the message of the circuit domain service interaction between terminal and the core net is carried out based on the conversion between the agreement of the support of AS layer protocol and interface.This interface module can also be used for carrying out with core net the business operation based on single terminal of circuit domain business, for example, the dispose procedure that the Iu of certain terminal connects, the flow process of this and this interface is not necessarily directly related.Below this is described in detail.

The network interface protocols module is used for handling on the Iu interface (perhaps A interface) and the incoherent public flow process of single UE (paging flow process wherein may include only the information of a UE, but also belongs to public flow process).These public flow processs are based on non-connection-oriented SCCP signaling and connect and finish, but not connection-oriented SCCP signaling is connected after the transport layer successful connection between eNodeB and the core net, just set up and have finished.

The protocol adaptation module is used for handling the flow process relevant with single UE.These flow processs are connected between base station and the core net by connection-oriented SCCP signaling and transmit.After the protocol adaptation module extracts the useful information in Iu interface (the perhaps A interface) signaling on down direction,, convert Radio interface protocols message to by certain RRM (RRM) algorithm.On up direction, protocol adaptation resume module Radio interface protocols converts Iu interface (perhaps A interface) message then to, sends to core net.For example, at RAB assignment messages RAB Assignment (assignment request message ASSIGNMENT REQUEST) message, service quality information (QoS) in the protocol adaptation module meeting processing messages is set up corresponding radio bearer then on wave point.If non-access layer information (NAS), so the protocol adaptation module the NAS message complete be included in wave point downlink information send (DLInformationTransfer) or be included in other the rrc layer signaling and issue.The Radio interface protocols module is the agreement of LTE access technology wave point, comprises physical (L1), medium Access Layer (MAC), radio link layer (RLC), convergence (PDCP) and radio resource control (RRC).That is, this module has realized two kinds of functions: the message conversion based on the AS layer protocol that the Radio interface protocols module is received is the message based on the agreement of interface of giving core net to be sent; To be the message based on the AS layer protocol of giving terminal to be sent from the message conversion based on the agreement of interface of core net.

The network interface protocols module also is used to handle the management process of the described interface between described eNodeB and the core net; The protocol adaptation module also is used for the part of the NAS layer protocol of the interactive messages between the MSC/VLR of described terminal and described core net is carried out transparent transmission, the information of container in all right transparent transmission interaction message.

According to above-mentioned terminal and eNodeB, the embodiment of the invention provides a kind of treatment system of circuit domain business, moving exchanging center MSC/VLR Visitor Location Register the VLR that comprises above-mentioned terminal, eNodeB and core net, the base station is connected by interface with core net in this system, and the base station uses interface that the circuit domain service interaction message of carrying out between terminal and the core net is changed, wherein, this interface comprises one of following: Iu interface, A interface.Particularly, the terminal in this system will support the non-access protocol layer NAS protocol stack of circuit domain business to be carried on the access protocol layer AS protocol stack of long evolving system, so that carry out circuit domain service interaction by eNodeB and core net.The circuit domain interactive messages based on the AS layer protocol of the eNodeB self terminal in future in this system is converted to the circuit domain interactive messages based on the agreement of interface, and sends to the MSC/VLR of core net; ENodeB will be converted to the circuit domain interactive messages based on the AS layer protocol from the circuit domain interactive messages based on the agreement of interface of the MSC/VLR of core net, and send to terminal.ENodeB also is used for the part of the NAS layer protocol of the interactive messages between the MSC/VLR of terminal and core net is carried out transparent transmission.Terminal and eNodeB have been described in detail in the above-described embodiments, do not repeat them here.

In order better the embodiment of the invention to be described,, the processing method of the circuit domain business of the embodiment of the invention is described in detail below in conjunction with terminal in the foregoing description and eNodeB.

Processing method according to the circuit domain business of the embodiment of the invention comprises: terminal is by the interface between the MSC/VLR of base station eNodeB in the long evolving system and core net, carry out circuit domain service interaction with core net, wherein, this interface comprises one of following: Iu interface, A interface.

Terminal will support the non-access protocol layer NAS protocol stack of circuit domain business to be carried on the access protocol layer AS protocol stack of long evolving system, and carry out the mutual of circuit domain business by eNodeB and core net.

ENodeB sets up first with the wave point of terminal use eNodeB and is connected (comprising carrying), and terminal connects with eNodeB by first carries out circuit domain service interaction; ENodeB uses above-mentioned interface to set up second with core net to be connected (comprising carrying), and eNodeB is connected by second with core net and carries out circuit domain service interaction.

Be connected in order to make eNodeB and core net on interface, set up second, need be by increasing the protocol stack that above-mentioned interface is supported on eNodeB; And eNodeB sends to core net and sets up the second triggering message that connects, and sets up second and connects.

ENodeB connects by first and obtains first message that is used for circuit domain service interaction from terminal, carries and sends first message to core net by the message of interface; ENodeB connects by second and obtains second message that is used for circuit domain service interaction from core net, carries and sends second message to terminal by the message of wave point.

Below how UE is initiated registration, position renewal, attachment removal, caller and called signaling process by eNodeB, and switch between the base station, the signaling process between system comes the detailed explanation embodiment of the invention.

In registration, position renewal, caller and called, short message service process, the concrete processing between terminal, eNodeB and the core net is as follows:

ENodeB connects the RRC message that receives self terminal by the radio resource control RRC of setting up between eNodeB and the terminal, wherein, carry first message in the RRC message, it is one of following that first message comprises: location update message, service message, wherein, it is one of following that service message comprises: business request information, the page-response message of the beep-page message that sends to terminal via eNodeB in response to core net.

Need to prove, service message is used for concrete business, comprise, caller and called, and short message service, wherein, business request information is the message of this terminal as calling party's transmission of calling or short message, and page-response message is that this terminal is as the page-response message of calling out or short message called side sends after receiving from the beep-page message of core net.

ENodeB is after getting access to first message, and that uses interface (abbreviating interface as) between eNodeB and the core net sends the initial terminal message of carrying first message to core net, and triggers the signaling of setting up interface between eNodeB and the core net and connect.

If first message comprises location update message, then at eNodeB after core net sends initial terminal message, receive from carrying the position and upgrade the direct-sending message of the interface of accepting message; ENodeB obtains the position renewal and accepts message, and position renewal reception message is carried in the direct-sending message of wave point, sends to terminal.

If first message comprises service message, then between eNodeB and core net, to set up after the signaling connection of interface, core net is carried out the processing of the NAS layer message relevant with business via eNodeB and terminal; Core net triggers the transmission bearer of setting up between core net and the eNodeB that is used for bearer service message corresponding service, and triggers eNodeB and set up the radio bearer that is used for bearer service message corresponding service by RRC connection and terminal; After transmission bearer and radio bearer were set up successfully, eNodeB used the appointment response message notice core net transmission bearer and the radio bearer of interface to set up successfully.Be explained below in conjunction with Fig. 7.

Fig. 7 is the flow chart according to the circuit domain service data package transmission method of the embodiment of the invention.As shown in Figure 7, the circuit domain service data package transmission method according to the embodiment of the invention comprises following processing (step S701-step S705):

Step S701: terminal is set up being connected of wave point and carrying with the eNodeB of long evolving system;

Preferably, step S701 can realize by following processing:

(1) eNodeB receives the connection request message of self terminal, and wherein, connection request message carries the information of request position updated information or request circuit territory business;

(2) eNodeB sends connection establishment response to terminal, sets up Radio Resource control Radio Resource control (Radio Resource Control abbreviates RRC as) connection and carrying with terminal.

Preferably, step S701 can also realize by following processing:

(1) terminal receives the beep-page message that comes from core net via eNodeB;

(2) terminal is set up RRC with eNodeB and is connected, and sets up the response message that carries beep-page message in the message in connection.

Step S703:eNodeB sets up being connected of interface and carrying with core net;

Preferably, above-mentioned interface includes but not limited to Lu interface, A interface, and promptly eNodeB sets up being connected and carrying of Lu interface or A interface with core net.

Preferably, step S703 can realize by following processing:

(1) eNodeB is sent to core net with initial terminal message, and wherein, initial terminal message is used for triggering respectively eNodeB and is connected with the signaling of setting up interface with core net;

(2) eNodeB receives the radio bearer assignment messages come from core net, and wherein, the radio bearer assignment messages is used to trigger the radio bearer resources that eNodeB and core net are set up interface.

Preferably, after execution of step S701 and step S703, when terminal or core net initiation service disconnection message or complete business, core net is connected and radio bearer resources with eNodeB release signaling successively.

Preferably, after execution of step S701 and step S703, can also comprise following processing:

(1) according to business demand, terminal will be connected the RRC that switches to the foundation of second base station with the RRC that eNodeB sets up and be connected, and wherein, the eNodeB and second base station belong to same long evolving system;

The carrying that (2) second base stations and core net are set up interface;

(3) core net discharges and is connected and bearing resource with the signaling of eNodeB.

Preferably, after execution of step S701 and step S703, can also comprise following processing:

(1) eNodeB determines to carry out the switching of system according to the message of terminal to report;

(2) eNodeB sends re-positioning request by the carrying of lu interface or A interface to core net, and wherein, re-positioning request carries the routing iinformation of goal systems;

(3) goal systems generates and is used to carry out the switching command that wave point switches, and is sent to terminal via core net and eNodeB;

(4) terminal will be connected with the RRC of eNodeB and switch to and being connected of goal systems;

(5) core net discharges and is connected and bearing resource with the signaling of eNodeB.

Preferably, above-mentioned goal systems can comprise one of following: E-UTRAN system, UTRAN system, GERAN system.But be not limited thereto.

Preferably, for the situation that origin system need be cut into the LTE system, can realize by following processing:

Before execution in step S701, can comprise following processing:

(1) eNodeB reception sources system sends handoff request via core net, and wherein, handoff request carries the routing iinformation of eNodeB, and source base station belongs to long evolving system;

(2) eNodeB generates and is used to carry out the switching command message that wave point switches, and is sent to terminal via core net, origin system;

After execution of step S701 and step S703, can also comprise following processing:

(3) origin system discharges and is connected and bearing resource with the signaling of terminal.

Preferably, above-mentioned origin system can comprise one of following: E-UTRAN system, UTRAN system, GERAN system.But be not limited thereto.

Step S705: terminal is by the carrying of wave point and the carrying of interface, with the transmission of core net realization circuit domain service data bag.

Below in conjunction with example above-mentioned steps is described in detail.

Example one

Fig. 8 is the flow chart of the example one according to the present invention.Wherein, terminal need be initiated the position by the base station in the LTE system and upgrade (registration or attachment removal), and as shown in Figure 8, this example one comprises following processing (step S801-step S809):

Step S801: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and attach the location update message Location Update Request of a NAS layer in up RRC message, this message is the message of MM layer protocol stack among Fig. 3.

Step S803:eNodeB is included in Location Update Request message among the initial terminal message Initial UE Message of Iu interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the MSC/HSS simultaneously and connects, and promptly SCCP connects.It is the connection-oriented signaling connection of setting up at single UE that this signaling connects.Non-connection-oriented signaling connection is the connection between eNodeB and two equipment of MSC/VLR on the Iu interface, transport layer successful connection below the SCCP layer is set up later on, be mainly used in the normal operation of safeguarding the Iu interface, for example, resource resets or transships indication etc.

Step S805:MSC/HSS has accepted the registration of terminal, then the position upgrade accept message Location Update Accept (reason can be adhere to success or position upgrade successfully wait) be wrapped in the direct-sending message Direct transfer message of Iu interface and issue eNodeB.

Step S807:eNodeB is the DLInformationTransfer that direct transfers of the downstream message by wave point again, and Location Update Accept is transferred to terminal.

Step S809: core net sends and to discharge the Iu signaling respectively with eNodeB and be connected with the RRC signaling and be connected.

Preferably, in the flow process that can have an authentication and encryption between above-mentioned steps S803 and the step S805 between terminal and the core net.

Preferably, the flow process that between above-mentioned steps S807 and step S809, can exist a temporary mobile subscriber identity (Temperate Mobile Subscription Identity abbreviates TMSI as) heavily to distribute.

Example two

Fig. 9 is the flow chart of the example two according to the present invention.When terminal was carried out caller, as shown in Figure 9, this example two comprised following processing (step S901-step S919):

Step S901: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and attach the business request information CM Service Request of a NAS layer in up RRC message, this message is the message of MM layer among Fig. 3.Wherein, the type of this service request is caller;

Step S903:eNodeB is included in CM Service Request message among the initial terminal message Initial UE Message of Iu interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the core net simultaneously and connects, and promptly SCCP connects;

Step S905: terminal, finish the relevant flow process of safety between eNodeB and the core net, the finishing of this flow process means that for terminal core net accepted above-mentioned service request;

Step S907: the related procedure of operation call control layer between terminal and the core net, comprise SETUP, CALL PROCEEDING etc., this flow process is the agreement of CC layer in Fig. 3 protocol stack.

Step S909: core net sends RAB assignment messages RABAssignment Request at the Iu interface, sets up transmission bearer between this message trigger eNodeB and the core net, triggers eNodeB simultaneously and sets up radio bearer;

Step S911:eNodeB connects the flow process of reshuffling by RRC and sets up radio bearer;

Step S913:eNodeB assigns response message RAB Assignment Response notice core net RAB and relevant radio bearer to set up successfully by the RAB of Iu interface;

Step S915: CC layer protocol stack message in the interchange graph 4 between terminal and the core net, wherein, this message comprises: ALERTING, CONNECT, CONNECT ACK etc., call through at this moment;

Step S917: the process that terminal or core net make a call and interrupt, end of calling;

Step S919: core net initiates to be connected dispose procedure successively with eNodeB, discharges relevant signaling and connects bearing resource etc.

Example three

Figure 10 is the flow chart of the example three according to the present invention, when eNodeB is connected with core net by the A mouth, if the UE caller as shown in figure 10, comprises the steps:

Step 1001: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and attach the business request information CM Service Request of a NAS layer in up RRC message, this is the message of MM layer among Fig. 3.The type of service request is caller;

Step 1002:eNodeB is included in CM Service Request message among the unbroken layer 3 message COMPELTE LAYER3 INFORMATION of A interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the core net simultaneously and connects, and promptly SCCP connects.It is the connection-oriented signaling connection of setting up at single UE that this signaling connects.Non-connection-oriented signaling connection is the connection between eNodeB and two equipment of MSC/VLR on the A interface, transport layer successful connection below the SCCP layer is set up later on, be mainly used in the normal operation of safeguarding the A interface, for example, resource resets or transships indication etc.;

Step 1003: finish the relevant flow process of safety between terminal, eNodeB and the core net, the finishing of this flow process means also that for terminal core net accepted service request;

Step 1004: the related procedure of operation call control layer between terminal and the core net, comprise SETUP, CALL PROCEEDING etc., these flow processs are agreements of CC layer in Fig. 3 protocol stack;

Step 1005: core net sends assignment request message ASSIGNMENTREQUEST at the A interface, sets up transmission bearer between this message trigger eNodeB and the core net; Trigger eNodeB simultaneously and set up radio bearer;

Step 1006:eNodeB connects the flow process of reshuffling by RRC and sets up radio bearer;

Step 1007:eNodeB assigns by the nothing of A interface and finishes message ASSIGNMENT COMPLETE, and notice core net radio bearer is set up successfully;

Step 1008: CC layer protocol stack message in the interchange graph 3 between terminal and the core net comprises ALERTING, CONNECT, CONNECT ACK etc., call through;

Step 1009: the process that terminal or core net make a call and interrupt, end of calling;

Step 1010: core net initiates to be connected dispose procedure successively with eNodeB, discharges relevant signaling and connects bearing resource.

Example four

Figure 11 is the flow chart of the example four according to the present invention.When terminal called, as shown in Figure 8, this embodiment four comprises following processing (step S1101-step S1121):

Step S1101: core net sends beep-page message to terminal by eNodeB;

Step S1103: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and in up RRC message, attach a page-response message PagingResponse;

Step S1105:eNodeB is included in Paging Response message among the initial terminal message Initial UE Message of Iu interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the core net simultaneously and connects, and promptly SCCP connects;

Step S1107: terminal, finish the relevant flow process of safety between eNodeB and the core net;

Step S1109: the related procedure of operation call control layer between terminal and the core net, comprise SETUP, CALL CONFIRM etc., these flow processs are agreements of CC layer in Fig. 3 protocol stack;

Step S1111: core net sends RAB assignment messages RABAssignment Request at the Iu interface, sets up transmission bearer between this message trigger eNodeB and the core net; Trigger eNodeB simultaneously and set up radio bearer;

Step S1113:eNodeB connects the flow process of reshuffling by RRC and sets up radio bearer;

Step S1115:eNodeB assigns response message RAB Assignment Response notice core net RAB and relevant radio bearer to set up successfully by the RAB of Iu interface;

Step S1117: CC layer protocol stack message in the interchange graph 4 between terminal and the core net, wherein, this message comprises ALERTING, CONNECT, CONNECT ACK etc., call through at this moment;

Step S1119: the process that terminal or core net make a call and interrupt, end of calling;

Step S1121: core net initiates to be connected dispose procedure successively with eNodeB, discharges relevant signaling and connects bearing resource etc.

Example five

Figure 12 is the flow chart of the example five according to the present invention.When terminal sent SMS message caller, as shown in figure 12, this example five comprised following processing (step S1201-step S1207):

Step S1201: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and the business request information CM Service Request of a subsidiary NAS layer in up RRC message, this is the message of MM layer among Fig. 3, and wherein the type of service request is a short message;

Step S1203:eNodeB is included in CM Service Request message among the initial terminal message Initial UE Message of Iu interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the core net simultaneously and connects, and promptly SCCP connects;

Step S1205: terminal and core net are moved the message of the relevant Non-Access Stratum of relevant short message, and these message are contents of SMS layer protocol in Fig. 3 protocol stack;

Step S1207: after the short message transmission flow was finished, core net and eNodeB discharged the signaling bear of Iu interface and wave point respectively.

Example six

Figure 13 is the flow chart of the example six according to the present invention.Terminal is when short message called, and as shown in figure 13, this example six comprises following processing (step S1301-step S1309):

Step S1301: core net sends beep-page message to terminal by eNodeB;

Step S1303: set up RRC between the base station eNodeB of terminal and E-UTRAN and connect, and attach a page-response message PagingResponse in up RRC message, the expression terminal has responded paging;

Step S1305:eNodeB is included in Paging Response message among the initial terminal message Initial UE Message of Iu interface.The transmission of this message triggers the signaling of setting up the Iu interface between eNodeB and the core net simultaneously and connects, and promptly SCCP connects;

Step S1307: terminal and core net are moved the message of the relevant Non-Access Stratum of relevant short message, and these message are contents of SMS layer protocol in Fig. 4 protocol stack;

Step S1309: after the short message transmission flow was finished, core net and eNodeB discharged the signaling bear and relevant resource of Iu interface and wave point respectively.

Example seven

Figure 14 is the flow chart of the example seven according to the present invention.Wherein, during switching between the intrasystem base station of E-UTAN, as shown in figure 14, this example seven mainly comprises following processing (step S1401-step S1405):

Step S1401: the switching flow of terminal between the base station of E-UTRAN system, obey in the E-UTRAN system switching flow by X2 interface.After this flow process was finished, terminal switched to target BS from source base station;

Step S1403: the repositioning process of the upgrading of operation Iu interface between target BS and the core net, this process has been set up the carrying of Iu User Plane between target BS and the core net simultaneously;

Step S1405: the signaling that core net is initiated the Iu interface between release and the source base station connects, carrying and relevant resource.

Example eight

Figure 15 is the flow chart of the example eight according to the present invention.When the base station with the LTE system switched to other system, as shown in figure 15, this example eight comprised following processing (step S1501-step S1513):

Step S1501: in the time of terminal and source base station communication, source base station carries out the outside switching according to the measurement report or the decision of other supplementarys of terminal to report;

Step S1503: source base station sends re-positioning request RelocationRequired message to core net by the Iu interface, and core net sends to goal systems to relevant handoff request message according to the routing iinformation in the message.This goal systems can be E-UTRAN, UTRAN, various wireless access technologys such as GERAN.If goal systems is E-UTRAN or UTRAN, can adopt the signaling of Iu interface so between core net and the goal systems;

Step S 1505: goal systems is prepared relevant resource, and generates the switching command Handover Command message that is used for the wave point switching;

Step S1507: this switching command sends to terminal by core net and source base station, triggers the hand-off execution process of wave point.The form of switching command and send mode are relevant with the goal systems type.If goal systems is the E-UTRAN system, this message will directly send on the wave point between terminal and the source base station; If goal systems is not the E-UTRAN system, this switching command itself will be wrapped in the general message container of another one and send to terminal so.This message container is meant MobilityFromEUTRACommand message in E-UTRAN;

Step S1509: carry out between terminal and the goal systems and switch the process that inserts, the detail of its process depends on the type of goal systems;

Step S1511: terminal successfully is cut into after the goal systems, goal systems notice core net handover success, wherein the form of handoff completion message also depend on goal systems type and and core net between interface type;

Step S1513: the signaling of the Iu interface between core net release and the source base station connects and bearing resource.

Example nine

Figure 16 is the flow chart of the example nine according to the present invention.When other system was switched to the LTE system, as shown in figure 16, this example nine mainly comprised following processing (step S1601-step S1613):

Step S1601: in the time of terminal and origin system communication, origin system carries out the outside switching according to the measurement report or the decision of other supplementarys of terminal to report;

Step S1603: origin system sends the target BS of handoff request to the E-UTRAN system by core net MSC/VLR;

Step S1605: target BS is prepared Radio Resource after this handoff request is admitted in decision, and generates the switching command message of E-UTRAN system wireless interface, i.e. RRCConnection Reconfiguration.Target BS also and the carrying of setting up user's face between the core net;

Step S1607: target BS is by core net, and origin system connects reconfiguration message to this RRC and sends to terminal;

Step S1609: terminal receives that RRC connects after the reconfiguration message, carries out the process that wave point switches in the E-UTRAN system, comprises random access procedure;

Step S1611: successfully cut when terminal after the target BS of E-UTRAN system, target BS has successfully been cut target BS by core net notification source system terminal;

Step S1613: goal systems discharges all context and the resources relevant with this terminal.

Preferably, all to set up being connected and being carried as example and being described of base station and core net lu interface, for A interface or other interfaces, the handling process of signaling is similar, repeats no more herein for the various embodiments described above.

By the foregoing description, provide a kind of circuit domain service data package transmission method.How to initiate registration in conjunction with terminal by base station in the LTE system, the position is upgraded, attachment removal, caller and called signaling process, and switch between the base station, the flow process of switching between system can be so that user terminal directly obtains the CS business by the base station of LTE system, having overcome increases chain of command and the time delay of user's face or the problem of header when adopting the prior art scheme, thereby can improve the service efficiency of system.

In sum, pass through the above embodiment of the present invention, the circuit domain service data bag transmission plan that provides, the core net MSC/VLR of the access node of the wireless network of LTE (E-UTRAN) (eNB) and existing support CS service is directly linked together, utilize the radio bearer of LTE directly to set up CS service business.Can when having overcome employing prior art scheme, increase chain of command and the time delay of user's face or the problem of header so that user terminal directly obtains the CS business by the base station of LTE system.Thereby can effectively improve the service efficiency of system.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

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 (24)

1. a terminal is characterized in that, comprising:

Access protocol AS layer module is used to realize the AS layer protocol based on long evolving system;

Non-access agreement NAS layer module is used to realize the NAS layer protocol of circuit domain;

Coordination module, be used for by coordinating described AS layer module and described NAS layer module, the NAS protocol stack of supporting circuit domain business is carried on the AS protocol stack of supporting long evolving system, and uses interface and described core net between described eNodeB and the core net to carry out circuit domain service interaction by base station eNodeB.

2. terminal according to claim 1 is characterized in that, described NAS layer module comprises the mobility management protocol unit, is used to realize mobility management protocol; It is one of following that described NAS layer module also at least also comprises:

The call control protocol unit is used to realize call control protocol;

Supplementary service protocol element is used to realize the supplementary service agreement;

The short-message protocol unit is used to realize short-message protocol.

3. terminal according to claim 1 is characterized in that, described AS layer module comprises:

Physical layer element is used to realize physical layer protocol;

The media access control layer unit is used to realize medium access control layer protocol;

The radio link layer unit is used to realize the Radio Link layer protocol;

Convergence layer unit is used to realize the convergence layer protocol;

The radio resource control layer unit is used to realize the radio resource control layer agreement.

4. a base station eNodeB is characterized in that, comprising:

The Radio interface protocols module uses wave point to be connected with terminal, is used to realize the AS layer protocol based on long evolving system;

Interface module is used to use interface to be connected with core net, and is connected with described Radio interface protocols module, and the circuit domain service interaction message between described terminal and the described core net is changed.

5. eNodeB according to claim 4 is characterized in that, described interface module comprises:

The network interface protocols module is used to use the described interface between described eNodeB and the core net, carries out the business operation based on a plurality of terminals of circuit domain business with described core net;

The protocol adaptation module is used for the message of the described circuit domain service interaction between described terminal and the described core net is carried out based on the conversion between the agreement of the support of AS layer protocol and described interface.

6. eNodeB according to claim 5 is characterized in that, described interface module also is used to use the described interface between described eNodeB and the core net, carries out the business operation based on single terminal of circuit domain business with described core net.

7. eNodeB according to claim 5 is characterized in that,

The network interface protocols module also is used to handle the management process of the described interface between described eNodeB and the core net;

The protocol adaptation module also is used for the part of the NAS layer protocol of the interactive messages between the MSC/VLR of described terminal and described core net is carried out transparent transmission.

8. eNodeB according to claim 7 is characterized in that,

The protocol adaptation module also is used for the container message of the interactive messages between the MSC/VLR of described terminal and described core net is carried out transparent transmission.

9. according to each described eNodeB in the claim 5 to 8, it is characterized in that described protocol adaptation module comprises:

The first protocol adaptation submodule, being used for the message conversion based on described AS layer protocol that the Radio interface protocols module receives is the message based on the agreement of described interface of giving described core net to be sent;

The second protocol adaptation submodule, being used for the message conversion based on the agreement of described interface from core net is the message based on the AS layer protocol of giving described terminal to be sent.

10. the treatment system of a circuit domain business comprises: the base station eNodeB of terminal, the long evolving system that is connected with described terminal by wave point, the moving exchanging center MSC/VLR Visitor Location Register VLR of core net is characterized in that:

Described base station is connected by interface with described core net, and described base station uses described interface that the circuit domain service interaction message of carrying out between described terminal and the described core net is changed.

11. system according to claim 10 is characterized in that:

Described terminal will support the non-access protocol layer NAS protocol stack of circuit domain business to be carried on the access protocol layer AS protocol stack of long evolving system, so that carry out circuit domain service interaction by described eNodeB and described core net.

12. system according to claim 10 is characterized in that,

Described eNodeB will be converted to the circuit domain interactive messages based on the agreement of described interface from the circuit domain interactive messages based on the AS layer protocol of described terminal, and send to the MSC/VLR of described core net;

Described eNodeB will be converted to the circuit domain interactive messages based on described AS layer protocol from the circuit domain interactive messages based on the agreement of described interface of the MSC/VLR of core net, and send to described terminal.

13. system according to claim 10 is characterized in that,

Described eNodeB carries out transparent transmission with the part of the NAS layer protocol in the interactive messages between the MSC/VLR of described terminal and described core net.

14. the processing method of a circuit domain business is characterized in that, comprising:

Terminal is carried out circuit domain service interaction by the interface between the MSC/VLR of base station eNodeB in the long evolving system and core net with described core net, and wherein, it is one of following that described interface comprises: Iu interface, A interface.

15. method according to claim 14 is characterized in that, described terminal is carried out comprising alternately of circuit domain business by described eNodeB and described core net:

Described terminal will support the non-access protocol layer NAS protocol stack of circuit domain business to be carried on the access protocol layer AS protocol stack of long evolving system, and carry out the mutual of described circuit domain business by described eNodeB and described core net.

16., it is characterized in that described terminal is carried out comprising alternately of described circuit domain business by described eNodeB and described core net according to claim 14 or 15 described methods:

Described eNodeB uses the wave point of described eNodeB to set up first with described terminal to be connected, and described terminal connects with described eNodeB by described first carries out circuit domain service interaction;

Described eNodeB uses described interface to set up second with described core net to be connected, and described eNodeB is connected by described second with described core net and carries out circuit domain service interaction.

17. method according to claim 16 is characterized in that, described eNodeB and described core net are set up described second and are connected and comprise on described interface:

Described eNodeB is by being provided with the protocol stack that described interface is supported;

Described eNodeB sends to described core net and sets up the described second triggering message that connects, and sets up described second and connects.

18. method according to claim 17 is characterized in that, described terminal is carried out comprising alternately of described circuit domain business by described eNodeB and described core net:

Described eNodeB connects by described first and obtains first message that is used for described circuit domain service interaction from described terminal, carries and sends described first message to described core net by the message of described interface;

Described eNodeB connects by described second and obtains second message that is used for described circuit domain service interaction from described core net, carries and sends described second message to described terminal by the message of described wave point.

19. method according to claim 18 is characterized in that, described eNodeB obtains first message that is used for described circuit domain service interaction by described wave point from described terminal and comprises:

Described eNodeB connects reception RRC message by the radio resource control RRC of setting up between described eNodeB and the described terminal, wherein, carries described first message in the described RRC message;

Described eNodeB obtains described first message according to described RRC message.

20. method according to claim 19 is characterized in that,

Described eNodeB connects the RRC message that receives from described terminal by the radio resource control RRC of setting up between described eNodeB and the described terminal, wherein, carry described first message in the described RRC message, it is one of following that described first message comprises: location update message, service message, wherein, it is one of following that described service message comprises: business request information, the page-response message of the beep-page message that sends to described terminal via described eNodeB in response to described core net;

Described eNodeB uses sending to described core net of described interface to carry the initial terminal message of described first message after getting access to described first message, and triggers the signaling connection of setting up described interface between described eNodeB and the described core net.

21. method according to claim 20 is characterized in that, comprises that in described first message under the situation of described location update message, described method also comprises:

, after described core net sends described initial terminal message, receive from carrying the position and upgrade the direct-sending message of the described interface of accepting message at described eNodeB;

Described eNodeB obtains the renewal of described position and accepts message, and described position renewal reception message is carried in the direct-sending message of described wave point, sends to described terminal.

22. method according to claim 20 is characterized in that, comprises that in described first message under the situation of described service message, described method also comprises:

Set up between described eNodeB and described core net after the signaling connection of described interface, described core net is carried out the processing of the NAS layer message relevant with described business via described eNodeB and described terminal;

Described core net triggers the transmission bearer of setting up between described core net and the described eNodeB that is used to carry described service message corresponding service, and triggers described eNodeB and connect to set up with described terminal by described RRC and be used to carry the radio bearer of described service message corresponding service;

After described transmission bearer and described radio bearer were set up successfully, described eNodeB used the appointment response message of described interface to notify described transmission bearer of described core net and described radio bearer to set up successfully.

23. method according to claim 14 is characterized in that, also comprises:

Described eNodeB determines to switch;

Described eNodeB uses described interface to send re-positioning request to described core net, and wherein, described re-positioning request carries the information of target system switched;

Described goal systems generates and is used to carry out the switching command that described wave point switches, and is sent to described terminal via described core net and described eNodeB;

Described terminal will with switch to being connected of described eNodeB and being connected of goal systems.

24. method according to claim 14 is characterized in that, also comprises:

Described eNodeB reception sources system sends handoff request via described core net, and wherein, described handoff request carries the information of described eNodeB;

Described eNodeB generates and is used to carry out the switching command message that wave point switches, and is sent to described terminal via described core net, described origin system;

Described terminal is set up described wave point with described eNodeB and is connected, and described eNodeB connects by described interface and described core net.

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