CN1997206A - A method for correct service network choice of the user terminal - Google Patents
A method for correct service network choice of the user terminal Download PDFInfo
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Abstract
This invention discloses one method to select service network for user terminal, which comprises the following steps: setting interface ability label for UE; UE connecting the label into signal order to provide interface network or core network; interface network or core one judges whether UE has the ability of interfacing into network according to label; if the label has the ability, then UE has interface into internet ability for process.
Description
Technical field
The present invention relates to the mobile communications network access technology, refer to a kind of method of user terminal selecting service network that correctly is especially.
Background technology
Universal mobile telecommunications system (UMTS) is a kind of third generation cordless communication network technical standard of third generation partner program (3GPP) tissue definition, and this standard has been issued version-99 (REL-99), REL-4, REL-5 and REL-6.Fig. 1 is the schematic network structure of prior art UTMS, as shown in Figure 1, the UMTS network is made up of core net (Core Network) and UTMS land radio access web (UTRAN, UMTS Terrestrial Radio Access Network), hereinafter abbreviates UTRAN as Access Network.Core net comprises circuit domain (CS, Circuit Switch) and packet domain (PS, Packet Switch) two parts, wherein, circuit domain comprises mobile switching center (MSC/VLR) and attaching position register (HLR), and packet domain comprises Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN); Access Network is made up of some RNSs (RNS), and each RNS is made up of a radio network controller (RNC) and several base stations NodeB, and the interface between RNC and the NodeB is an Iub interface, and user terminal (UE) is communicated by letter by between Uu interface and NodeB.The interface of Access Network and circuit domain core net is Iu-CS, and the interface of Access Network and packet domain core network is an Iu-PS interface.
At present, 3GPP is studying the next generation network after the evolution of UMTS network, and formulates the technical standard of evolvement network, the next generation network after the evolution of UMTS network is abbreviated as evolvement network (Evolved Network) herein.Evolvement network only provides Packet Service, and real time business such as voice, visual telephone also adopts the mode of grouping to realize in addition, evolvement network should want to support and the UMTS network between switching and roaming.
Fig. 2 is the syndeton schematic diagram of evolvement network and UTMS, as shown in Figure 2, UMTS network and evolvement network all can be by Gi interface and the outside (PDN of Packet Data Network, Packet Data Network) connects, Packet Data Network can be internet network (Internet), or the private network of other Packet Data Networks such as enterprises etc.Evolvement network comprises evolution wireless access network (Evolved RAN) and evolution block core net (Evolved Packet Core), interconnects by the R1 interface between evolution wireless access network and evolution block core net.For realizing switching and the roaming between evolvement network and the UMTS network, can be that UTRAN is by Interface R3 and evolution block core net interconnection, also can be that SGSN passes through Gn+ interface and evolution block core net interconnection, can also be that UTRAN, SGSN interconnect with evolution block core net respectively.
Need to prove, in the middle of the technical standard of evolvement network is being formulated, the internal structure of evolution wireless access network and evolution block core net is also undefined, R1, R3 and Gn+ interface are represented just exists a kind of interface relationship, and the actual name of interface is finally determined by the technical standard that 3GPP formulates; Because evolvement network only provides Packet Service, so relation between the packet domain of evolvement network and UMTS only is shown among Fig. 2, and the circuit domain part is not shown;
Along with the application of evolvement network, the mixing UE of evolvement network and UMTS must appear supporting simultaneously, and promptly mixing UE both can provide service by UTMS, also can provide service by evolvement network.When mixing UE is positioned at the UTRAN area of coverage and UMTS and evolvement network existence interconnection, mix UE and should be registered to evolvement network, so that the user obtains better service quality, and the business of this mixing UE is provided by evolution block core net.Such as: if UTRAN and evolution block core net interconnection, the signaling message that then mixes business such as the mobile management of UE and session management is sent to evolution block core net through Interface R3, is carried out mobile management and the conversation management functional that mixes UE by evolution block core net; If UTRAN and evolution block core net do not interconnect, but SGSN and evolution block core net interconnection, and then for mixing the UE registration, the link of business datum will arrive evolution block core net through the Gn+ interface by SGSN to SGSN to the evolution block core net request.
As seen, when mixing UE request registration or request foundation business, whether UTRAN or SGSN need determine register requirement and service request are issued the evolution block core net of evolvement network, that is to say, the mixing UE that only has the cut-in evolution network ability, just can carry out register requirement and service request by evolution block core net, and, need UTRAN and SGSN identification UE whether to have the ability of cut-in evolution network.
UTRAN and SGSN based on existing UTMS can not discern the ability whether UE has cut-in evolution network, therefore, when the evolution block core net of UTRAN and evolvement network interconnects, UTRAN can only send to SGSN with professional relevant message with the registration that mixes UE, select UTMS to provide service for mixing UE, mix UE and can not be registered to evolvement network, the service that the user can not use evolvement network to provide; Equally, when the evolution block core net of UTRAN and evolvement network does not interconnect, but when SGSN and evolution block core net interconnection, SGSN can not send to evolution block core net with professional relevant message with the registration that mixes UE, mix UE and can not be registered to evolvement network, the service that the user can not use evolvement network to provide.
From above-mentioned analysis as seen, when UTMS and evolvement network interconnection, prior art can not correctly be selected service network for mixing UE, causes supporting simultaneously that the user of evolvement network and UMTS can not obtain better network service.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of and correctly is the method for user terminal selecting service network can provide better network service for the user who supports evolvement network and UMTS simultaneously.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of is the method for user terminal selecting service network correctly, for user terminal UE is provided with the access capability sign; This method is further comprising the steps of:
A. described UE is carried at self access capability sign in the signaling message, offers UMTS Terrestrial radio access network UTRAN or core net; Described UTRAN or core net identify according to described access capability, judge whether UE has the ability of cut-in evolution network, be used to identify the evolvement network access capability sign that UE has the ability of cut-in evolution network if exist in the described access capability sign, then UE has the ability of cut-in evolution network, enters step B; Otherwise UE does not have the ability of cut-in evolution network, enters step C;
B. the UE cut-in evolution network is handled process ends;
C. UE being gone into universal mobile telecommunications system UTMS handles.
Described signaling message is a wireless resource control connection request RRC Connection Request message, and the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether there is evolvement network access capability sign in the access capability sign of carrying in the wireless resource control connection request RRC ConnectionRequest message of described UTRAN judgement from UE, if exist, then UTRAN judges that UE has the ability of cut-in evolution network; Otherwise UTRAN judges that UE does not have the ability of cut-in evolution network.
Described signaling message is a UE ability information UE Capability Information message, and the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether have evolvement network access capability sign in the access capability sign of carrying in the UE ability information UE Capability Information message of described UTRAN judgement from UE, if exist, then UTRAN judgement UE has the ability of cut-in evolution network; Otherwise UTRAN judges that UE does not have the ability of cut-in evolution network.
Described signaling message be Iu connect to set up and the initial UE message Initial UEMessage of NAS message in transmitting in, the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether there is evolvement network access capability sign in the access capability sign of carrying among the initial UE message Initial UE Message of Serving GPRS Support Node SGSN judgement from UTRAN of described core net, if exist, then SGSN judges that UE has the ability of cut-in evolution network; Otherwise SGSN judges that UE does not have the ability of cut-in evolution network.
Described access capability sign is arranged on the version indication of the Access Layer of the version number that is used for identifying the network that UE supports;
The version indication parameter value of described Access Layer comprises: edition 4 REL-4, and/or REL-5, and/or REL-6, and/or evolvement network access capability sign.
Described evolvement network access capability is designated the version number of the sign evolvement network that UE supported.
Described access capability sign is arranged on UE wireless access capability parameter between the different radio access technologies of the access capability that is used for identifying the non-UTRAN access technology that UE supports;
UE wireless access capability parameter comprises between described different radio access technologies:
Expression UE has the ability of access global system for mobile communications GSM network and the GSM parameter item of relevant parameter;
Expression UE has the ability of access cdma200 network and the cdma2000 parameter item of relevant parameter;
Expression UE can insert the GERAN Iu parameter item of UMTS core net and relevant parameter by the Iu interface of GERAN;
Evolvement network access capability sign.
Described evolvement network access capability is designated the evolvement network parameter item that expression UE has the ability of cut-in evolution network.
The title of storage evolvement network in the described evolvement network parameter item.
Described access capability sign is carried at and is used for identifying the evolvement network ability Evolved Network Capability parameter whether UE has the ability of cut-in evolution network.
As seen from the above technical solution, the present invention is by being provided with evolvement network access capability sign for UE, when UE need be with network service, self evolvement network access capability sign is carried in the signaling message, offers Access Network or core net; Access Network or core net identify according to described evolvement network access capability, judge whether UE has the ability of cut-in evolution network, be used to identify the evolvement network access capability sign that UE has the ability of cut-in evolution network if exist in the described access capability sign, then UE has the ability of cut-in evolution network, the UE cut-in evolution network is handled, provided service for UE by evolvement network; Otherwise UE does not have the ability of cut-in evolution network, UE is inserted UTMS handle, and provides service by UTMS for UE.
The inventive method when UTMS and evolvement network interconnection, correctly for UE selects service network, makes to support the user of evolvement network and UMTS to obtain better network service simultaneously.
Description of drawings
Fig. 1 is the schematic network structure of prior art UTMS;
Fig. 2 is the syndeton schematic diagram of evolvement network and UTMS;
Fig. 3 is the flow chart of the inventive method;
Fig. 4 is that RRC of the present invention connects the flow chart of setting up;
Fig. 5 is the mutual flow chart of UE ability information of the present invention;
Fig. 6 is the flow chart that Iu of the present invention connects foundation and the transmission of NAS message.
Embodiment
Core concept of the present invention is: for UE is provided with the access capability sign; UE is carried at self access capability sign in the signaling message, offers Access Network or core net; Access Network or core net identify according to described access capability, judge whether UE has the ability of cut-in evolution network, be used to identify the evolvement network access capability sign that UE has the ability of cut-in evolution network if exist in the described access capability sign, then UE has the ability of cut-in evolution network, and the UE cut-in evolution network is handled; Otherwise UE does not have the ability of cut-in evolution network, UE is inserted UTMS handle.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing preferred embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 3 is the flow chart of the inventive method, and for UE selects service network, the inventive method may further comprise the steps for correctly:
Step 300: for UE is provided with the access capability sign.
The access capability sign is used to identify the service network that UE supports, in the prior art, the access capability sign can be that the version of the Access Layer of present 3GPP standard indicates (Access stratum releaseindicator) as REL-4, REL-5 and REL-6, or the access network of three kinds of non-UTRAN sign is as global system for mobile communications (GSM), GSM EDGE Radio Access Network (GERAN) and cdma200; Regulation shows that then UE supports REL-99 if insert nothing indication in the sign in addition.Wherein, EDGE is the enhanced data rates for gsm evolution technology.
Among the present invention,, show that then UE has the ability of cut-in evolution network if in the access network sign, be provided with evolvement network access capability sign.
The method of judging is exactly: be used to identify the evolvement network access capability sign that UE has the ability of cut-in evolution network if exist in the described access capability sign, then UE has the ability of cut-in evolution network; If do not have evolvement network access capability sign in the described access capability sign, then UE does not have the ability of cut-in evolution network.
Step 303: the UE cut-in evolution network is handled, provided service by evolvement network for UE, process ends.
Step 304: UE is inserted UTMS handle, provide service for UE by UTMS.
Enumerate several related services below, specifically describe the realization of the inventive method.
Fig. 4 is that RRC of the present invention connects the flow chart of setting up, and may further comprise the steps:
Step 400:UE sends wireless resource control connection request (RRC ConnectionRequest) message to UTRAN.
According to related protocol regulation, the RRC agreement between UE and UTRAN in the Uu interface is in charge of Radio Resource, and UE and UTRAN communicate by letter and must set up RRC earlier before and be connected.Setting up the RRC purpose of connecting, is for UE distributes initial wireless channel, makes UE and UTRAN can carry out the mutual of signaling message at least.
Stipulate according to related protocol, UE carries UE in the RRC Connection Request message that UTRAN sends sign, RRC connect the channel type of setting up reason, UE support, and UE is in the version indication parameters such as (Access stratum release indicator) of Access Layer.Wherein, the version of Access Layer is designated as an optional parameters, and this optional parameters is used to identify 3GPP standard version that UE supports number.This optional parameters is an enumeration type, but value is REL-4, REL-5 and REL-6, represents that respectively the version that UE supports is REL-4, REL-5 and REL-6 version; If do not carry this optional parameters in the RRC ConnectionRequest message, what then show UE and supported is the REL-99 version.
The standard of the evolvement network of formulating for 3GPP is not determined the version number of evolvement network at present as yet, and the version number of supposing evolvement network here is REL-x.In this step, the version indication parameter of the Access Layer that carries in the expansion RRC ConnectionRequest message increases a new REL-x of version number, promptly increases the version number of the sign evolvement network that UE supported in the version indication parameter of Access Layer.
Step 401:UTRAN returns RRC to UE and connects foundation (RRC Connection Setup) message.
After UTRAN receives RRC Connection Request message, if there is the REL-x of version number of evolvement network in the version indication parameter of the Access Layer that carries in the message, then UTRAN judges that UE has the ability of cut-in evolution network, with the UE cut-in evolution network, provides service by evolvement network for UE; Otherwise UTRAN judges that UE does not have the ability of cut-in evolution network, and UE is inserted UMTS.
UTRAN is the relevant information that UE creates context and stores UE, is that UE distributes radio channel resource, and sets up needed wireless channel for UE.At last, UTRAN sends RRCConnection Setup message to UE, and carrying UTRAN in the message is the parameter of the radio channel resource of UE distribution.
Step 402:UE replys RRC connection foundation to UTRAN and finishes (RRC Connection SetupComplete) message, finishes to be connected with the RRC of UTRAN to set up to UTRAN indication UE.
In addition, set up in the process in the RRC connection, can also be by in RRC Connection Request message, UE wireless access capability (Inter-RAT UE radio access capability) parameter between the different radio access technologies of the newly-increased access capability that is used to identify the non-UTRAN access technology that UE supports realizes correctly being the user terminal selecting service network.Have the ability of access GSM network and the GSM parameter item of relevant parameter except the expression UE that comprises the related protocol regulation in this Inter-RAT UE radio access capability parameter, expression UE has the ability of access cdma200 network and the cdma2000 parameter item of relevant parameter, expression UE can be by outside the Iu interface access UMTS core net of GERAN and the GERAN Iu parameter item of relevant parameter etc., also comprise: the Evolved Network parameter item that expression UE has the ability of cut-in evolution network, need to prove, Evolved Network represents the title of evolvement network, and actual name depends on the definition of 3GPP to evolvement network.
Like this, when UTRAN received RRC Connection Request message, if Inter-RAT UEradio access capability parameter middle finger is shown with Evolved Network parameter item, then UTRAN judged that UE has the ability of cut-in evolution network.
Set up in the process in the RRC connection, when UTRAN receives RRC Connection Request message, and the REL-x of version number that has evolvement network in the version indication parameter of the Access Layer that carries in the RRC Connection Request message, perhaps carry Inter-RAT UEradio access capability parameter in the RRC Connection Request message and this Inter-RAT UE radio access capability parameter middle finger is shown with Evolved Network parameter item, then UTRAN judges that UE has the ability of cut-in evolution network, provides service by evolvement network for UE.
Fig. 5 is the mutual flow chart of UE ability information of the present invention, may further comprise the steps:
Step 500:UTRAN sends UE ability information inquiry (UE Capability Enquiry) message to UE.
According to related protocol regulation, RRC connect set up after, UTRAN where necessary, when being the traffic assignments Radio Resource of UE, ability information from UE to UE that can inquire.
After step 501:UE receives UE Capability Enquiry message, send UE ability information (UE Capability Information) message, in this UE Capability Information message, point out the ability information of UE to UTRAN.
This step also can be the access capability of UE when changing, and UE initiatively reports the current ability information of self to UTRAN.
According to the related protocol regulation, can carry the version indication parameter of Access Layer in the UE Capability Information message; In addition, also carry Inter-RAT UEradio access capability parameter in the UE Capability Information message.
According to the method described in Fig. 4, in UE ability information reciprocal process, equally can be by expanding the version indication parameter of the Access Layer that carries in the RRC Connection Request message, increase a new REL-x of version number, promptly in the version indication parameter of Access Layer, increase the version number of the sign evolvement network that UE supported, perhaps in Inter-RAT UE radio access capability parameter, increase the Evolved Network parameter item that expression UE has the ability of cut-in evolution network, realize correctly selecting the method for service network for UE.
Like this, in UE ability information reciprocal process, when UTRAN receives UE CapabilityInformation message, and the REL-x of version number that has evolvement network in the version indication parameter of the Access Layer that carries in the UE Capability Information message, perhaps carry Inter-RAT UE radio access capability parameter in the UE Capability Information message and this Inter-RAT UE radioaccess capability parameter middle finger is shown with Evolved Network parameter item, then UTRAN judges that UE has the ability of cut-in evolution network, provides service by evolvement network for UE.
After step 502:UTRAN receives UE Capability Information message, store the ability information of carrying in this UECapability Information message, described ability information parameter is used for radio resource allocation strategy, and return the UE ability information to UE and confirm (UE Capability InformationConfirm) message, confirm to have received the ability information that UE reports.
Fig. 6 is the flow chart that Iu of the present invention connects foundation and the transmission of NAS message, according to the related protocol regulation, in the UMTS network, the Radio Access Network Application Part of Iu interface (RANAP) agreement is in charge of the resource of Iu interface, before communicating by letter between UE and core net such as the SGSN, must set up Iu earlier and connect; After Iu connects foundation, UTRAN could transmit the signaling message that exchanges between UE and SGSN at the Iu interface, these signaling messages are GPRS Mobility Management (GMM) message relevant with mobile management, session management (SM) message that session management is relevant, and relevant short message service (SMS) message of short message, because GMM/SM/SMS belongs to Non-Access Stratum (NAS, Non-Access Stratum) agreement can be referred to as GMM/SM/SMS message NAS message (NAS Message).As shown in Figure 6, Iu connection foundation of the present invention and NAS message transmit and may further comprise the steps:
Step 600: realize the RRC process that connects.
UE sends before article one NAS Message, sets up RRC earlier and connects.Here suppose to connect at RRC and set up in the process, UE indicates its ability information to UTRAN, and points out that in ability information this UE has the ability of cut-in evolution network, detailed process referring among the present invention to the description of Fig. 4, no longer repeat here.
Step 601:UE with NAS Message as data encapsulation in initial direct-sending (the Initial Direct Transfer) message of RRC agreement, and send to UTRAN.
The destination of carrying packaged data in Initial Direct Transfer message is destination informations of packet domain core network.
Step 602:UTRAN sends initial UE message (Initial UE Message) to SGSN.
According to the related protocol regulation, after UTRAN receives Initial Direct Transfer message,, know that packed NAS Message sends to certain SGSN according to the destination information that carries in the message.Because this Initial Direct Transfer message is article one NAS message that UE issues SGSN, therefore UTRAN need set up Iu with SGSN and is connected, UTRAN is that Iu connects allocation identification and related resource, send Initial UE Message message to SGSN then, NAS Message is encapsulated in the Initial UE Message message as data equally.
According to the UMTS technical standard of 3GPP definition, SGSN need not to know the access capability of UE, that is to say, SGSN can not judge that UE has the ability that inserts which kind of network.
Among the present invention, a newly-increased parameter in Initial UE Message message, be used to identify the ability whether UE has cut-in evolution network, such as increasing evolvement network ability (Evolved NetworkCapability) parameter, Evolved Network Capability parameter is a form of expression, in the actual techniques standard, may use different parameter names, perhaps different parameters has Evolved Network parameter item such as increase Inter-RAT UE radio access capability parameter and this Inter-RATUE radio access capability parameter indication in Initial UEMessage message.
After step 603:SGSN receives Initial UE Message message, create the context of Iu connection and the context of UE, NAS Message is provided by the current GMM/SM/SMS protocol layer of the network of service that provides handles.When SGSN need be when UE sends NAS Message, SGSN is encapsulated in NAS Message in the Direct Transfer message and sends to UTRAN.
Among the present invention, when SGSN received article one NAS Message, SGSN can judge whether UE has the ability of cut-in evolution network according to whether carrying Evolved Network Capability parameter in the InitialUE Message message.If carry Evolved NetworkCapability parameter in the Initial UE Message message, perhaps carrying what select in Inter-RAT UE radio accesscapability parameter and this Inter-RAT UE radio access capability parameter in the Initial UE Message message is Evolved Network parameter item, then UTRAN judges that UE has the ability of cut-in evolution network, SGSN will establish a connection with the evolution core net, and provide service by evolvement network for UE.
After step 604:UTRAN receives Direct Transfer message, NAS Message is taken out and is encapsulated into once more in descending direct transferring (the Downlink Direct Transfer) message of RRC agreement and issue UE.UE obtains NAS Message after receiving Downlink Direct Transfer message, and the current upper-layer protocol GMM/SM/SMS of the network of service that provides is provided NASMessage handles.
To sum up, the inventive method is by setting up evolvement network access capability sign in the access network sign, realized when UTMS and evolvement network interconnection, correctly, making to support the user of evolvement network and UMTS to obtain better network service simultaneously for UE selects service network.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is the method for user terminal selecting service network correctly, it is characterized in that, for user terminal UE is provided with the access capability sign; This method is further comprising the steps of:
A. described UE is carried at self access capability sign in the signaling message, offers UMTS Terrestrial radio access network UTRAN or core net; Described UTRAN or core net identify according to described access capability, judge whether UE has the ability of cut-in evolution network, be used to identify the evolvement network access capability sign that UE has the ability of cut-in evolution network if exist in the described access capability sign, then UE has the ability of cut-in evolution network, enters step B; Otherwise UE does not have the ability of cut-in evolution network, enters step C;
B. the UE cut-in evolution network is handled process ends;
C. UE being inserted universal mobile telecommunications system UTMS handles.
2. method according to claim 1 is characterized in that, described signaling message is a wireless resource control connection request RRC Connection Request message, and the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether there is evolvement network access capability sign in the access capability sign of carrying in the wireless resource control connection request RRC ConnectionRequest message of described UTRAN judgement from UE, if exist, then UTRAN judges that UE has the ability of cut-in evolution network; Otherwise UTRAN judges that UE does not have the ability of cut-in evolution network.
3. method according to claim 1 is characterized in that, described signaling message is a UE ability information UE Capability Information message, and the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether have evolvement network access capability sign in the access capability sign of carrying in the UE ability information UE Capability Information message of described UTRAN judgement from UE, if exist, then UTRAN judgement UE has the ability of cut-in evolution network; Otherwise UTRAN judges that UE does not have the ability of cut-in evolution network.
4. method according to claim 1 is characterized in that, described signaling message be Iu connect to set up and the initial UE message Initial UE Message of NAS message in transmitting in, the method whether described UE of judgement has the ability of cut-in evolution network is:
Whether there is evolvement network access capability sign in the access capability sign of carrying among the initial UE message Initial UE Message of Serving GPRS Support Node SGSN judgement from UTRAN of described core net, if exist, then SGSN judges that UE has the ability of cut-in evolution network; Otherwise SGSN judges that UE does not have the ability of cut-in evolution network.
5. according to claim 2 or 3 described methods, it is characterized in that: described access capability sign is arranged on the version indication of the Access Layer of the version number that is used for identifying the network that UE supports;
The parameter value of the version indication of described Access Layer comprises: edition 4 REL-4, and/or REL-5, and/or REL-6, and/or evolvement network access capability sign.
6. method according to claim 5 is characterized in that, described evolvement network access capability is designated the version number of the sign evolvement network that UE supported.
7. according to claim 2,3 or 4 described methods, it is characterized in that: described access capability sign is arranged on UE wireless access capability parameter between the different radio access technologies of the access capability that is used for identifying the non-UTRAN access technology that UE supports;
UE wireless access capability parameter comprises between described different radio access technologies:
Expression UE has the ability of access global system for mobile communications GSM network and the GSM parameter item of relevant parameter;
Expression UE has the ability of access cdma200 network and the cdma2000 parameter item of relevant parameter;
Expression UE can insert the GERAN Iu parameter item of UMTS core net and relevant parameter by the Iu interface of GERAN;
Evolvement network access capability sign.
8. method according to claim 7 is characterized in that,
Described evolvement network access capability is designated the evolvement network parameter item that expression UE has the ability of cut-in evolution network.
9. method according to claim 8 is characterized in that, the title of storage evolvement network in the described evolvement network parameter item.
10. method according to claim 4 is characterized in that: described access capability sign is carried at and is used for identifying the evolvement network ability Evolved NetworkCapability parameter whether UE has the ability of cut-in evolution network.
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