CN101669377A

CN101669377A - Mobility management (mm) and session management (sm) for sae/lte

Info

Publication number: CN101669377A
Application number: CN200880009231A
Authority: CN
Inventors: C·赫雷罗维朗
Original assignee: Telefonaktiebolaget LM Ericsson AB
Current assignee: Telefonaktiebolaget LM Ericsson AB
Priority date: 2007-03-22
Filing date: 2008-03-17
Publication date: 2010-03-10

Abstract

A system and method for using Mobility Management (MM) and Session Management (SM) procedures in an SAE/LTE system.The present invention modifies severalMM and SM procedures that have been defined forother 3GPP access systems (such as GERAN, UTRAN) so that they meet the requirements of LTE/SAE. While the present invention re-uses some existing procedures, it further defines new protocols for MM and SM procedures when accessing 3GPP systems by Evolved UTRAN (EUTRAN). With respect to the new protocols, the encoding rules are re-used from the existing MM and SM procedures and a very similar general message format is created. With respect to the signaling messages, the present invention re-uses the existing information element definitions for each parameter included in a message.

Description

The mobile management (MM) and the session management (SM) that are used for SAE/LTE

Background

Implication of abridging below used herein is as follows:

3GPP third generation partner program

The AS Access Layer

CC calls out control

The CM connection management

The CN core net

The CS circuit switching

The evolved Node B of eNB

The EPC Evolved Packet Core

The evolved UTRAN of EUTRAN

The FDD Frequency Division Duplexing (FDD)

GERAN GSM EDGE wireless access network

The GMM GPRS Mobility Management

The GPRS General Packet Radio System

The GSM global system for mobile communications

The IP Internet Protocol

The LLC logic link control

The LTE Long Term Evolution

The access control of MAC medium

The MM mobile management

The MME Mobility Management Entity

The MS travelling carriage

MSC mobile switching centre

The NAS Non-Access Stratum

The PDU Packet Data Unit

The PS packet switching

The P-TMSI packet TMSI

The RANAP Radio Access Network Application Part

The control of RLC Radio Link

The SAE System Architecture Evolution

SA WG system architecture working group

The SGSN Serving GPRS Support Node

The SM session management

The SMS Short Message Service

The SS supplementary service

The TDD time division duplex

The UE subscriber equipment

UTRA general land wireless access

The UTRAN UMTS Terrestrial radio access network

Third generation partner program (3GPP) is the cooperative association that sets up in December, 1998 by signature third generation partner program agreement.Depend on the evolution of so-called 2.5 generation global system for mobile communications (GSM) network standards based on the third generation system of 3GPP standard.3GPP is devoted to prepare, ratify and keep for following aspect necessity set of technical specification and technical report: UMTS Terrestrial radio access network continues (UTRAN), comprises general land wireless access (UTRA) (with Frequency Division Duplexing (FDD) (FDD) and time division duplex (TDD) pattern); 3GPP core net (developing and next ability from GSM: comprise the utilization of mobile management (MM), global roaming and relevant the Internet agreement); Be used to insert the subscriber equipment (UE) and the terminal of above-mentioned network, and system and service aspect.

The Long Term Evolution of 3G mobile system (LTE) starts from 2004.Initial focus is the evolution of UTRA.One group of high-caliber requirement is determined, and comprises that the cost, the increase service that reduce every bit provide, use flexibly existing and new frequency band, simplify framework, use open interface and promote rational terminal power consumption.In some aspects, the cooperation with 3GPP system architecture working group (SAWG) is necessary.Access Network and core net separate and the throughput characteristic of new service needs all requires architectural coordination closely.

Feasibility study to UTRA and UTRAN LTE starts from December, 2004.Target is the framework of evolution exploitation for the 3GPP wireless access technology, causes two-forty, the low delay and optimum wireless access technology of dividing into groups.The support service that provides from packet switching (PS) territory is provided in this research, comprise relevant wave point physical layer (down link and up link), support flexibly means up to the transmission bandwidth of 20MHz, introduce new transmission plan and senior multi-antenna technology, and the signaling optimization relevant with radio interface layer 2 and 3.About the framework of UTRAN, target is to determine the separation on the function between the optimum UTRAN network architecture and RAN node.

All RAN WG have participated in research, cooperate with SA WG2 in network architecture field.RAN WG3 cooperates closely with SA WG2 in the definition of new architecture.Evolved UTRAN (EUTRAN) is made up of a plurality of e-NodeB (eNB), and the evolved UTRA user's face and the chain of command agreement that end at UE are provided.About System Architecture Evolution (SAE), SA WG2 has started the research of a SAE, target be into the 3GPP system to high data rate more, the more evolution or the migration exploitation framework of the system of the multiple wireless access technology of support of low latency, optimum grouping.

Mobile management (MM) and session management (SM) process are (GSM Edge wireless access network/universal land radio access web (GERAN/UTRAN) definition of other 3GPP connecting systems by convention.But LTE/SAE did not define such process.

The LTE/SAE system can allow different types of data pass through.This term of signaling is often used in definition and is used to send the special data type of the control messages of control system in some way that is used to.The information of other types, user data is meant the user profile that is sent to the reality of targeted customer or target application from certain source user.Usually, signaling data passes through chain of command.User data is by user's face.

For existing 3GPP system, Access Layer (AS) transmits all and relates to signaling and the subscriber data message that is used for across the access technology of the special interface of that part of system.Across wave point, the AS agreement is between UE and the wireless access network such as UTRAN, and such as the agreement of wireless access network and the lower level between the core net (CN) of UTRAN.

In addition, at present, Non-Access Stratum (NAS) transmits signaling message and the subscriber data message that is independent of lower floor's access mechanism.These signalings and user data transmit between UE and CN, from conceptive, are pellucidly by Radio Access Network, for example UTRAN.

For existing 3GPP system, NAS comprises the MM of CS and PS (for example General Packet Radio System (GPRS)), and the process of the SM of CC, GPRS, SMS and SS.

For the MM in the protocol stack architecture of determining LTE/SAE and the position of SM process, must consider the protocol infrastructure of SAWG2 definition.The SAE framework only provides the support of packet-switched domain service.In the SAE framework MME be responsible for distributing and receive by eNB from/go to the message of UE, for example, beep-page message.

It should be noted that treated side is required it is that 3GPP inserts to the UE or the terminal of LTE connecting system (EUTRAN) and/or existing GERAN, UTRAN communication.As a result, interoperability between the different Access Networks and mobility become the requirement of these UE and terminal.In addition, should avoid the renewal on a large scale in UE or the terminal, because this will postpone the enforcement of SAE most probably.For existing 3GPP system (for example GERAN, UTRAN), UE and core net as Serving GPRS Support Node (SGSN) and mobile switching centre (MSC), provide SM (only PS territory), SMS and the SS process of MM, CC, GPRS.These processes are parts of NAS.

Two groups of different MM processes have been stipulated for CS territory and PS territory.These two groups of processes are classified as two kinds of different agreements and by different entity handles or management.

At present, the MM layer provides the mobility support of UE, informs network and user identity confidentiality is provided such as the position that it is current.Two kinds of different entities are arranged in the MM layer; MM entity and processing that processing is used for the agreement (and process) of non-GPRS service (CS territory) are used for GPRS MM (GMM) entity that GPRS serves the agreement (process) in (PS territory).Referring to 3GPP TS23.060,24.007,24.008.

The example of the signaling message type that transmits via AS is power control loop and handoff procedure and the message of for example distributing the channel of use in audio call to the user in the control system.The example of NAS signaling message can be the message of relevant setup requests, and wherein this call setup message is independent of basic access mechanism.In this example, call setup message is from CN, and by AS route pellucidly.

As shown in Figure 1,3GPP TS 23.401[2] this version discloses UE 101 and has been connected to network (EPC) by two reference points via LTE-Uu interface 102.Two reference points are the S1-MME 103 that are used for chain of command, are used for the S1-U 104 of user's face.As visible at this, MME communicates by letter with existing Serving GPRS Support Node (SGSN) 105.The LTE/SAE framework only provides support to the service in PS territory.Therefore, LTE connecting system (for example EUTRAN) existing GMM and SM process be use, certain modification or new process just needed.GMM provides three kinds of dissimilar processes and is arranged in network (SGSN) and UE.These processes are GMM general process, GMM special process and GMM connection management process.UE during to network registry the GMM general process initiate by network.These processes comprise that packet TMSI (P-TMSI) heavily distributes, GPRS authentication and encryption, GPRS identification and GPRS information.The GMM special process is initiated by network, or is initiated by UE.The process of being initiated by network comprises: the GPRS service of attachment removal UE and/or non-GPRS service and GPRS attachment removal.The process of being initiated by UE comprises that GPRS adheres to, attachment removal and routing region updating.Only GMM connection management process just is used when UE obtains to insert by UTRAN.These processes are initiated by UE and are used to set up to be connected with the safety of network and/or to ask reservation of resource to send data; Service request.

Fig. 2 shows the protocol infrastructure 200 that uses between can again can the UE by PS network service by CS network service.Fig. 3 shows travelling carriage (MS) and SGSN control of communication face protocol stack 300.

Fig. 4 shows the conventional chain of command protocol stack 400 that UE communicates by letter with SGSN.

Summary of the invention

The present invention is devoted to use in the SAE/LTE system system and method for mobile management (MM) and session management (SM) process.The present invention revised some for the MM of other 3GPP connecting systems (for example GERAN, UTRAN) definition and SM process so that they satisfy the requirement of LTE/SAE.Though the present invention has reused some existing processes, it has further defined the New Deal of MM and SM process when inserting the 3GPP system by EUTRAN.Reuse the coding rule of existing MM and SM process for New Deal, and created a kind of closely similar common message format.For signaling message, the present invention has reused some existing element definitions that are used for being included in each parameter of message.

Description of drawings

In the part below, the exemplary embodiments shown in the present invention incites somebody to action is with reference to the accompanying drawings described, wherein:

Fig. 1 is the regional system block diagram, and it discloses UE and has been connected to network (EPC) by two reference points via the LTE-Uu interface, and these two reference points are: be used for the S1-MME of chain of command, and the S1-U that is used for user's face;

Fig. 2 shows the protocol infrastructure that uses between can again can the UE by packet switching (PS) network service by circuit switching (CS) network service;

Fig. 3 shows the chain of command protocol stack of travelling carriage (MS) when communicating by letter with SGSN;

Chain of command protocol stack when Fig. 4 shows UE and communicates by letter with SGSN;

Fig. 5 shows the protocol infrastructure of the present invention among the UE only at LTE/SAE;

Fig. 6 shows the chain of command protocol stack of the present invention among the UE only at LTE/SAE; And

Fig. 7 shows the protocol infrastructure of the present invention in GERAN/UTRAN and LTE/SAE UE.

Embodiment

Process is that act of execution, one group are used for revising the input instruction of those behaviors and the statement sequence of output valve that may certain type.And an agreement has indicated one or more following attributes: to the detection of the existence of basic physical connection (wired or wireless) or other end points or node; Shake hands; The negotiation of various connection performances; How to initiate and termination messages; How formatting messages; How to handle ruined or formatted message (error correction) improperly; How to detect unexpected connection loss, and next how to do; And the termination of session or connection.In other words, agreement comprises one or more processes.Agreement can be seen as and be used for two language (such as set of rule, form) between the entity, and process is the operation of using for exchange message.From the viewpoint of 3GPP, signaling protocol is the set of rule for two entities of intercommunication; Comprise a lot of protocol elements, for example the state machine (in case of necessity) in agreement destination node, general format structure, coding rule, protocol-identifier, process or operation, message or Packet Data Unit (PDU), cell (IE), transmission and the receiving entity.Process is one of protocol elements, comprises message or the PDU or the IE of a plurality of exchanges, and may cause sending the change with receiving entity both sides' state machine.

The present invention revised some for the MM of other 3GPP connecting systems (for example GERAN, UTRAN) definition and SM process so that they satisfy the requirement of LTE/SAE.Though the present invention has reused some existing processes, it has further defined the New Deal of MM and SM process when inserting the 3GPP system by EUTRAN.For New Deal, reused coding rule, and created a kind of closely similar common message format from existing MM and SM process.For signaling message, the present invention has reused the existing element definitions that is used for being included in each parameter of message.Especially, the present invention is used for the GPRS MM (GMM) and the SM process of Non-Access Stratum (NAS) signaling between the MME that UE and LTE insert (using EUTRAN).

Fig. 5 and Fig. 6 show according to the protocol infrastructure among the UE of the present invention.More particularly, Fig. 5 shows the protocol infrastructure 500 of the UE that is used for only supporting LTE/SAE, and Fig. 6 shows the protocol infrastructure 600 of the UE that is used to support GERAN/UTRAN and LTE/SAE.As shown in Figure 6, the SM of GERAN/UTRAN must communicate by letter with MM with the SM of LTE/SAE 603/604 with MM agreement 601/602.This communication-cooperation agreement and state machine with support to go to/from the variation between the system of LTE/SAE and other 3GPP connecting systems.

The present invention can be seen as within the dotted portion 701 of the protocol infrastructure 700 of Fig. 7 from an aspect.As shown in Figure 7, the SM of the MM of LTE/SAE 702 and LTE/SAE 703 is new entity, is new agreement therefore.For go to/from the variation between the system of other 3GPP connecting systems, the SM of GMM and SM and LTE/SAE and the coordination between the MM be necessary, as shown in Figure 7.This includes, but are not limited to, between the MM of GMM and LTE/SAE and identity and contextual mapping between the MM of MM and LTE/SAE.

Get back to Fig. 1 and Fig. 2, when UE was present among existing 3GPP system and the LTE/SAE simultaneously, the MME that is used for LTE/SAE was similar to the MME that is used for conventional SGSN.Therefore in principle, conventional all MM processes of being used by SGSN all can be used for comprising service request procedure among the LTE/SAE.Message that relates in these processes and parameter and element definitions also can be used among the LTE/SAE.Yet the present invention has revised existing process in some cases so that they adapt to the requirement of LTE/SAE, as in this more abundant description.

The P-TMSI of existing 3GPP system (3GPP TS 24.008) is heavy, and assigning process provides identity confidentiality.By heavily distributing new P-TMSI for UE, this has protected the user not discerned by the invador and has located.For LTE/SAE, identical identity name and identity format definition can be reused, or create new identity with different titles.Therefore, the present invention includes the process that the P-TMSI that uses different titles and form heavily distributes.This process comprises the heavy assignment command message that has the new temporary identity that will use from MME to UE, and the heavy assignment command message of the new temporary identity of affirmation from UE to MME.

The GPRS authentication of existing 3GPP system and encrypt authentication and the cryptographic key agreement of carrying out between network and UE, and may further cause GERAN to start or stop information encryption (encryption) to sending.The present invention includes authentication and ciphering process between the MME of UE and LTE/SAE, authentication and cryptographic key agreement take place thus.The encryption and the integrity protection of MM and SM information are provided by conventional process among the LTE/SAE, and perhaps the new particular safety mode command by MM among the LTE/SAE similar to the conventional safe mode command mode of lower level use among the UTRAN provides.Under any circumstance, the present invention includes authentication request and authentication responses (under the case of successful), authentication refusal (under the situation of failure), safe mode command request, safe mode command is finished (under the case of successful) and safe mode command refusal (under the situation of failure).

The GPRS identifying is used to ask UE that the specific identification parameter is provided, for example IMSI International Mobile Subscriber Identity (IMSI) and International Mobile Station Equipment Identification (IMEI).This identifying is similar in the present invention.For LTE/SAE, identity request message is sent to UE from MME, and identity response message is sent to MME from UE.Be requested with the information that is provided can be as in the GPRS identifying or created for LTE/SAE under the situation of novel entities and be modified.

The GMM information process carries information to UE, such as network title and time.This process also can be used to LTE/SAE, although it be called as probably the LTE information process or, for example evolved MM (EMM) information process.Equally, the information that offers UE can be identical with the information that provides in the GMM information process, or different.The LTE/SAE information process will comprise the information request message of MME to UE and from the information answer of UE to MME.

The present invention comprises that further operationally being used for LTE/SAE makes UE adhere to the attaching process of packet service.Because LTE/SAE is based on the system of grouping, the attaching process that is attached to non-grouping service is unwanted.The LTE/SAE attaching process should comprise the Attach Request message from UE to MME, if success is from the acceptance of adhering to of MME, if failure, from the refusal that adheres to of MME, and when being assigned to UE by the new temporary identity of attaching process from finishing adhering to of UE.In addition, the LTE/SAE attaching process is not only for attachment to the packet service among the LTE/SAE, and is used to set up radio bearer so that send and the receiving block data service, and startup is connected and can remains with the IP of UE like this.Adhere to message name although can reuse LTE/SAE from conventional 3GPP attaching process, the content of message is different among the present invention, because some the GSM relevant parameter that does not need UE to send among the LTE/SAE, such as to adhere to non-grouping service.

In the present invention, identical in the identity that in LTE/SAE, exchanges and the gsm system.The same with the GSM attaching process, MME distributes new temporary identity when carrying out attaching process among the present invention at every turn.In addition, the sign of the final area of UE registration and roaming also can be sent out.Discontinuous reception (DRX) mode parameter also is instructed to during adhering to request by UE, and type of attachment, for example normally or again adheres to.In LTE/SAE, the zone can be instructed to the Tracking Area Identifier in GSM.But, in the present invention, new argument is used to allow the foundation of radio bearer during attaching process.Exchange in packet data protocol (PDP) context activation that these parameters and UE initiate is similar.These comprise in the Attach Request message that receives internet protocol version four (IPv4) or IP version 6 (IPv6) address or IPv4 and IPv6 address the request from UE.The single or multiple IP address that is assigned with is accepted to be instructed in the message adhering to by MME.UE also is suitable for indicating access protocol title (APN) to select from the particular network that wherein is connected to.

The present invention further is included in the attachment removal process that makes UE attachment removal packet service among the LTE/SAE.Detach request can be sent by UE or MME, and attachment removal is accepted and can both be sent so that the successful attachment removal of indication by them.

The present invention includes the process that is used to carry out the renewal of UE position, so that the registration among the MME of zone that renewal UE is roaming or position.It should be noted that this process is not limited to the GERAN/UTRAN routing region updating.The present invention is equally applicable to carry out to upgrade and goes to other access technologies with reporting system, GERAN for example, the variation between the system of UTRAN.Location update request message sends to MME by UE, the indication updating type.Send the position renewal from MME and accept message or refuse information, and finish message when new temporary mark is divided timing to send the position renewal from UE by MME.

The present invention further comprises the service request procedure of safety (logic) connection that is used to set up from UE to MME.In the present invention, service request information is from UE, and service is accepted or refuse information is sent to UE from MME.

The purpose of SM agreement is to support packet data protocol (PDP) context of UE to handle among the GPRS.In addition, SM supports multimedia broadcasting multimedia service (MBMS) context in UE and the network to handle, and this allows UE to receive data from specific MBMS source.The SM agreement has been envisioned the process of PDP context activation, deexcitation, modification and MBMS context activation and deexcitation thus.The content of the PDP Context of LTE/SAE and title can be different from the content and the title of PDP Context in other 3GPP connecting systems, because the wireless access of LTE/SAE partly is different from GERAN/UTRAN, i.e. the foundation of radio bearer may be different.Yet, because and the needs that change between the single system of other 3GPP connecting systems, the present invention comprises structure identical with current Network Service Access point identifier and value scope, as being used to discern the PDP Context of LTE/SAE described in the 3GPPTS 24.008 (NSAPI), but the title of using can be different.

GMM is the GPRS signaling protocol, is used to handle the selection of for example roaming of mobility problem, authentication and cryptographic algorithm.GMM (GMM/SM) agreement that has a SM supports the mobility of UE so that SGSN can understand the PDP session that user data transmits that is used for that the position of travelling carriage (MS) and activation, modification, deexcitation MS require at any time.

Among the present invention, the SM of LTE/SAE comprises block data protocol context, so that set up, revise or remove the PDP session.These processes are such as requesting activation specific PDP session, modification or dismounting, with identical among the GSM/SM, as what carried out by MME or UE.

The present invention reuses from some processes in other 3GPP connecting systems, and LTE/SAE requirement enhancing, and these enhancings are used on message and the parameter, perhaps are used for the new process of LTE/SAE by increase.In some cases, the present invention includes the severance agreement that is used for LTE/SAE.Under these circumstances, need be used for each new protocol discriminator (PD) of the MM of LTE/SAE and SM.

In some cases, the present invention preferably uses New Deal, because the MM of LTE/SAE and SM process are terminated in the network entity of the network entity in being different from other 3GPP connecting systems.In other 3GPP connecting systems, GMM and SM end among the SGSN, and end among the MME for LTE/SAE.The situation of this and MM is similar, and MM is and GMM agreement independently, because MM communicates by letter with MSC and GMM communicates by letter with SGSN.

In addition, the message of the MM of LTE/SAE and SM is different with the message that conventional 3GPP connecting system requires.Equally, there is no need to reuse some GMM protocol procedures, such as the process of adhering to GPRS and non-GPRS service simultaneously.It is identical with the sign used in the existing 3GPP connecting system that the sign of using among the LTE/SAE does not need.Sign is message and the contextual necessary part that is stored in network and the terminal.If the same protocol of using in other 3GPP connecting systems is reused, the necessary cell in each message of agreement also just necessitates rapidly for LTE/SAE so, although these agreements can not be used in some cases.These cells must always be encoded, and for example, have pseudo-value, but utilized bandwidth and processing time are provided with and are received by UE and MME.When using New Deal, need be MM and SM message definition common message format for the MM of LTE/SAE and SM.This can regard as multiple new use the as the common message format of the GMM that describes among the 3GPP TS 24.008.By this way, only need protocol discriminator, skip indicator or transaction identifiers (dependence message) and type of message.Situation for the SM of LTE/SAE can draw identical conclusion by the SM that notes other 3GPP connecting system message, therefore replaces skip indicator always to need with transaction identifiers.

3GPP TS24.008 universal information organization example

Yet the SM of other 3GPP connecting systems is used for the transaction identifiers (TI) and the NSAPI of session management procedure.In principle, TI is used for addressed messages, and NSAPI is used for the identification on user's face, but these two kinds of identifiers are allocated for the life-span of specific PDP Context, and is included in nearly all SM message.Therefore the use of TI and NSAPI in most of the cases looks like redundancy.

For the SM message of LTE/SAE, the conventional or new PDP Context sign (NSAPI) of LTE/SAE is enough, uses TI in the message and not be used in.Under any circumstance, the PDP Context of LTE/SAE sign should be included in the message that is necessary.Therefore, the present invention includes following common message format:

The universal information organization example that is used for the MM of LTE/SAE

The universal information organization example that is used for the SM of LTE/SAE

The PDP Context sign of the common message format supposition LTE/SAE of the SM of LTE/SAE has the structure identical with the current NSAPI value of other 3GPP connecting systems (the 4-bit value that promptly has the value of 11 definition).

Should be understood that protocol discriminator is half eight hyte.This is because as defined among the 3GPP TS 24.007, current protocol discriminator coding has two backed-up values that possibility is used in position and need not use the extension mechanism of definition.These are " 0111 " and " 1101 ".Equally, retention " 0010 " also can be used, because it is to keep for the agreement that no longer exists.Therefore, reach new MM and the SM agreement that three different values can be used for LTE/SAE.Shown in the prior protocols discriminator values form below:

3GPP TS 24.007 protocol discriminator values

The present invention further comprises the UE that only supports LTE/SAE according to this description.Such UE do not supported by any existing 3GPP connecting system (for example GERAN) or support.

Advantage of the present invention comprises the use of full test process, and the development that is easier to the solution of implementing, testing and using in market.If there is not the present invention, compare existing process, new (and more different) process is essential so that satisfy the requirement of LTE/SAE general introduction.Those skilled in the art can understand, the creationary notion of describing among the application can be on wide range of applications modifications and variations.Correspondingly, the scope of patented subject matter should not be limited to above-mentioned any specific exemplary teachings, but is limited by following claim.

Claims

1, be used for the call manager process of Long Term Evolution/System Architecture Evolution (LTE/SAE) system, comprise:

Mobility Management Entity (MME) is arranged to according to general packet radio service (GPRS) mobile management (MM) process Non-Access Stratum (NAS) signaling is provided.

2, the call manager process of claim 1, wherein MME is arranged to according to GPRS session management (SM) process NAS is provided signaling.

3, the call manager process of claim 2, wherein the SM of LTE/SAE comprises block data protocol context so that set up, revise or remove packet data protocol (PDP) session.

4, the call manager process of claim 3, the process of wherein setting up, revising or removing the PDP session be with GMM/SM in identical mode, carry out from MME or UE.

5, the call manager process of claim 2 further comprises the authentication and the ciphering process that are used for LTE/SAE, and authentication and cryptographic key agreement between UE and the MME take place thus.

6, the call manager process of claim 5, wherein the encryption of the MM of LTE/SAE and SM information and integrity protection provide by conventional process or with UTRAN in the similar manner that uses of lower level provide by the new particular safety mode command of the MME of LTE/SAE.

7, telecommunication system comprises:

Serving GPRS Support Node (SGSN);

Evolved UTRAN (EUTRAN); And

Mobility Management Entity (MME), being arranged to provides communicating by letter between SGSN and the EUTRAN, and MME is arranged to according to GPRS Mobility Management (MM) process Non-Access Stratum (NAS) signaling is provided thus.

8, the telecommunication system of claim 7, wherein MME is arranged to according to GPRS session management (SM) process NAS is provided signaling.

9, the telecommunication system of claim 8, wherein the SM of LTE/SAE comprises block data protocol context so that set up, revise or remove packet data protocol (PDP) session.

10, the telecommunication system of claim 9, the process of wherein setting up, revising or removing the PDP session be with GMM/SM in identical mode, carry out from MME or UE.

11, the telecommunication system of claim 8 further comprises having the authentication that is used for LTE/SAE and the MME of ciphering process, and authentication and cryptographic key agreement take place thus.

12, the telecommunication system of claim 11, wherein the encryption of the information of LTE/SAE provide by conventional process or as with UTRAN in the particular safety mode command that uses of lower level by the MM of LTE/SAE provide.

13, call management method comprises according to the General Packet Radio System between SGSN and the EUTRAN (GPRS) mobile management (MM) process Non-Access Stratum (NAS) signaling.

14, be used for the call management method of Long Term Evolution/System Architecture Evolution (LTE/SAE) system, may further comprise the steps:

Operation parameter allows the foundation with radio bearer during the similar attaching process of the exchange during packet data protocol (PDP) context activation of subscriber equipment (UE) initiation.

15, the method for claim 14, further comprise step: comprise the request from UE in the Attach Request message that receives internet protocol version four (IPv4) or IP version 6 (IPv6) address or IPv4 and IPv6 address, the one or more IP address that wherein is assigned with is accepted to indicate in the message adhering to by MME.

16, the method for claim 15, wherein UE is applicable to and indicates access protocol title (APN) to select particular network to be used for connecting.

17, be used for the call management method of Long Term Evolution/System Architecture Evolution (LTE/SAE) system, comprise step: the process that comprises the executing location area update is so that the registration in the Mobility Management Entity (MME) of zone that renewal subscriber equipment (UE) is being roamed or position.

18, the method for claim 17 comprises that further the execution reporting system of more newly arriving goes to other access technologies, comprises the step of the inter system change of GERAN and UTRAN.

19, the method for claim 18, wherein location update request message by UE be sent to MME indication updating type and, the position upgrade accept message or refuse information from MME send and, the position is upgraded and is finished message and divided timing to send from UE by MME when new temporary mark.

20, the call management method that is used for Long Term Evolution/System Architecture Evolution (LTE/SAE) system comprises between the MM that coordinates GMM and LTE/SAE and the step of the inter system change between the SM of SM and LTE/SAE.

21, the method for claim 20 further comprises between the MM of GMM and LTE/SAE and identity and contextual mapping steps between the MM of MM and LTE/SAE.

22, computer-readable medium comprises the instruction that is arranged for according to the GPRSMM process control NAS signaling between SGSN and the EUTRAN.