WO2014047945A1

WO2014047945A1 - Method and apparatus for accessing user equipment

Info

Publication number: WO2014047945A1
Application number: PCT/CN2012/082497
Authority: WO
Inventors: 张艳平; 弗兰克马德曼; 时书锋
Original assignee: 华为技术有限公司
Priority date: 2012-09-29
Filing date: 2012-09-29
Publication date: 2014-04-03
Also published as: CN103891326A

Abstract

Provided are a method and apparatus for accessing a user equipment. The method comprises: a core network element acquires capability information or version information of a user equipment (UE), wherein the capability information of the UE is the capability information which only supports registering in a packet switching (PS) domain or the capability information which supports an extension timer; and the core network element determines that the user equipment is not allowed to register in a circuit switching (CS) domain according to the capability information or the version information and user data information of the UE. Restricting the access of a user equipment in the CS domain reasonably reduces the signalling interaction between the user equipment and an MSC, and improves the network utilization rate simultaneously.

Description

User equipment access method and device

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a user equipment access method and apparatus. Background technique

With the continuous development of communication technologies, various new broadband network access technologies are emerging. To meet the communication needs, user equipments in different communication networks pass the 3rd Generation Partnership Project (3GPP). The network terminal architecture completes the communication interaction. Some User Equipment (UE) can obtain all its communication services from the PS (Packet Switched Packet Switching) domain in the second generation mobile communication technology (2rd-generation, 2G) or 3G (3rd-generation, 3G) systems. However, these UEs can also obtain some communication services, such as short message services, through the CS (Circuit Switched Circuit Switched) domain.

In the prior art, the UE can obtain the short message service through the PS domain and the CS domain. However, as more and more user equipment terminals access the communication network, and a large number of UEs access the CS domain to obtain the short message service, the MSC will be (Mobile Swithing Center Mobile Switching Center) is overloaded, affecting the MSC to provide services for terminals that can only obtain services in the CS domain, and the network utilization is not high. Summary of the invention

The invention provides a method and a device for accessing a user equipment, which are used to limit access of a user equipment in a CS domain, without causing excessive load on the MSC and improving network utilization.

In one aspect, an embodiment of the present invention provides a user equipment access method, including:

The core network element acquires capability information or version information of the user equipment UE; the capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports the extended timer;

The core network element determines, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the CS domain.

With reference to the first aspect, the user data information of the UE is subscription data information of the UE: The subscription data information of the UE is information indicating that the PS domain subscription data of the UE includes short message subscription data, and the CS domain subscription data only has subscription information of a short message.

With reference to the first aspect, the core network element is a mobility management network element, and the mobility management network element is a support node SGSN or a mobile switching center MSC serving a general wireless packet service, and the method further includes: mobility management The network element sends a second request message to the home subscriber server; the mobility management network element receives the data information of the UE sent by the home subscriber server.

With reference to the first aspect, the core network element is a mobility management network element, and the mobility management network element is an SGSN or an MSC, and the method further includes: the core network element returns a first to the user equipment In response to the message, the first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

With reference to the first aspect, the core network element is a home subscriber HSS, the method further includes: sending, by the core network element, a mobility management network element, including indicating that the user equipment is not allowed to register in the CS domain. a message, so that the mobility management network element sends the indication information to the user equipment, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

With reference to the first aspect, the core network element is an HSS, the method further includes: the core network element receives a second request message sent by the mobility management network element, where the second request message includes the capability The information or the version information is obtained by the mobility management network element from the user equipment or the access network element.

In combination with the first aspect, the core network element is a home subscriber server HSS (Home

Subscriber Server), the method further comprises: the core network element canceling registration of the UE in the CS domain.

In conjunction with the first aspect, the core network element is an HSS, and the user data information of the UE is: information that the SGSN of the serving UE is registered as a short message service node.

With reference to the first aspect: the capability information that is only registered in the packet switched PS domain means that the user equipment is not registered in the CS domain, or is rejected by the CS domain, or is delayed by the CS domain network, and the PS domain service may be obtained. Ability information.

In conjunction with the first aspect, the PS domain service is provided by LTE.

In conjunction with the first aspect, when the indication information is a timer value, the timer value indicates a time when the user equipment delays accessing the CS domain. On the other hand, the embodiment of the present invention further provides a user equipment access method, including: the user equipment sends version information or capability information of the UE to the mobility management network element; the version information or capability information is directly sent to the mobility management. The network element is sent to the mobility management network element by using the access network element, and the capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports the extended timer;

The user equipment receives the indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain;

The user equipment deletes the saved temporary user identifier and the location area identifier information according to the indication information, and updates the CS domain mobility management state to an idle state.

With reference to the second aspect, the indication information is a timer value, and the method further includes: the user equipment starts a timer, and initiates a registration process to the CS domain after the timer stops/times out or deletes.

On the other hand, an embodiment of the present invention further provides a core network element, including:

And an obtaining module, configured to acquire capability information or version information of the user equipment UE, where the capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports an extended timer;

And a determining module, configured to determine, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the CS domain.

With reference to the third aspect, the user data information of the UE is the subscription data information of the UE: the subscription data information of the UE is that the PS domain subscription data indicating the UE includes short message subscription data, and the CS domain subscription data is only The information of the contract data of the short message.

With reference to the third aspect, the core network element is a mobility management network element, and the mobility management network element is a support node SGSN or a mobile switching center MSC serving a general wireless packet service, and the core network element further includes: The first sending module is configured to send a second request message to the home subscriber server; the receiving module receives the data information of the UE that is sent by the home subscriber server.

With reference to the third aspect, the core network element is a mobility management network element, and the mobility management network element is an SGSN or an MSC, and the core network element further includes: a second sending module, configured to send the user The device returns a first response message, where the first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain. With reference to the third aspect, the core network element is an HSS, and the core network element further includes: a third sending module, configured to send, to the mobility management network element, a message indicating that the user equipment is not allowed to register in the CS domain, so as to The mobility management network element sends the indication information to the user equipment, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

With reference to the third aspect, the core network element is an HSS, and the core network element further includes: a receiving module, configured to receive a second request message sent by the mobility management network element, where the second request message includes The capability information or the version information is obtained by the mobility management network element from the user equipment or the access network element.

In conjunction with the third aspect, the core network element is an HSS, and the core network element further includes: a processing module, configured to cancel registration of the UE in the CS domain.

In conjunction with the third aspect, the core network element is an HSS, and the user data information of the UE is: information that the SGSN of the serving UE is registered as a short message service node.

With reference to the third aspect, the capability information that is only registered in the packet switched PS domain means that the user equipment is not registered in the CS domain, or is rejected by the CS domain, or is delayed by the CS domain network, and the PS domain service may be obtained. Ability information.

In conjunction with the third aspect, the PS domain service is provided by LTE.

In conjunction with the third aspect, when the indication information is a timer value, the timer value indicates a time when the user equipment delays accessing the CS domain.

On the other hand, an embodiment of the present invention further provides a user equipment, including:

a sending module, configured to send the version information or the capability information of the UE to the mobility management network element; the version information or the capability information is directly sent to the mobility management network element or sent to the mobility management network element by using the access network element, where The capability information of the UE is capability information supporting the registration only in the PS domain or capability information supporting the extended timer;

a receiving module, configured to receive the indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain;

And an update module, configured to delete the saved temporary user identifier and the location area identifier information according to the indication information, and update the CS domain mobility management state to an idle state.

With reference to the fourth aspect, the indication information is a timer value, and the user equipment further includes: a processing module, configured to start a timer, and initiate a registration process to the CS domain after the timer stops/times out or deletes. On the other hand, an embodiment of the present invention further provides a core network element, including:

a receiver, configured to acquire capability information or version information of the user equipment UE, where the capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports an extended timer;

And a processor, configured to determine, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the CS domain.

With reference to the fifth aspect, the user data information of the UE is the subscription data information of the UE: the subscription data information of the UE is that the PS domain subscription data indicating the UE includes short message subscription data, and the CS domain subscription data is only The information of the contract data of the short message.

With reference to the fifth aspect, the core network element is a mobility management network element, the mobility management network element is an SGSN or an MSC, and the core network element further includes: a first sender, configured to be a home user The server sends a second request message, and the receiver receives the data information of the UE sent by the home subscriber server.

With reference to the fifth aspect, the core network element is a mobility management network element, the mobility management network element is an SGSN or an MSC, and the core network element further includes: a second transmitter, configured to provide the user The device returns a first response message, where the first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

With reference to the fifth aspect, the core network element is an HSS, and the core network element further includes: a third sender, sending, to the mobility management network element, a message indicating that the user equipment is not allowed to register in the CS domain, so that The mobility management network element sends the indication information to the user equipment, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

With reference to the fifth aspect, the core network element is an HSS, and the core network element further includes: a receiver, configured to receive a second request message sent by the mobility management network element, where the second request message includes The capability information or the version information is obtained by the mobility management network element from the user equipment or the access network element.

In conjunction with the fifth aspect, the core network element is an HSS, and the core network element further includes: a processor, configured to cancel registration of the UE in the CS domain.

In conjunction with the fifth aspect, the core network element is an HSS, and the user data information of the UE is: information that the SGSN of the serving UE is registered as a short message service node.

With reference to the fifth aspect, the capability information for supporting registration only in the packet switched PS domain refers to the When the user equipment is not registered in the CS domain, or is rejected by the CS domain, or is delayed by the CS domain network, the capability information of the PS domain service can be obtained.

In conjunction with the fifth aspect, the PS domain service is provided by LTE.

In conjunction with the fifth aspect, when the indication information is a timer value, the timer value indicates a time when the user equipment delays accessing the C S domain.

a transmitter, configured to send the version information or the capability information of the UE to the mobility management network element; the version information or the capability information is directly sent to the mobility management network element or sent to the mobility management network element by using the access network element, where The capability information of the UE is capability information supporting the registration only in the PS domain or capability information supporting the extended timer;

a receiver, configured to receive the indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain;

a processor, configured to: according to the indication information, delete the saved temporary user identifier and location area identifier information, update the CS domain mobility management state to an idle state; and further, start a timer, after the timer stops/times out or deletes Initiate the registration process to the CS domain.

In conjunction with the sixth aspect, the indication information is a timer value, and the processor is further configured to: start a timer, and initiate a registration process to the CS domain after the timer stops/times out or deletes.

The user equipment access method and device provided by the embodiment of the present invention can obtain the subscription data of the user equipment, the capability information of the user equipment, and the support information of the mobility management network element, and reasonably limit the access of the user equipment in the CS domain, The communication service is obtained in the PS domain, which reduces signaling interaction between the user equipment and the MSC, reduces the load on the MSC, and improves network utilization. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a flowchart of Embodiment 1 of a method for accessing a user equipment according to the present invention;

2 is a flowchart of Embodiment 2 of a method for accessing a user equipment according to the present invention; 3 is a signaling flowchart of Embodiment 3 of a method for accessing a user equipment according to the present invention;

4 is a signaling flowchart of Embodiment 4 of a method for accessing a user equipment according to the present invention;

FIG. 5 is a signaling flowchart of Embodiment 5 of a method for accessing a user equipment according to the present invention;

6 is a signaling flowchart of Embodiment 6 of a method for accessing a user equipment according to the present invention;

7 is a schematic structural diagram of Embodiment 1 of a core network element according to the present invention;

8 is a schematic structural diagram of Embodiment 2 of a core network element according to the present invention;

9 is a schematic structural diagram of Embodiment 3 of a core network element according to the present invention;

10 is a schematic structural diagram of Embodiment 4 of a core network element according to the present invention;

FIG. 1 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention;

12 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention;

FIG. 13 is a schematic structural diagram of Embodiment 3 of a user terminal according to the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The access network element in the present invention may be: a BSC (Base System Controller) in the GERAN system, and an RNC (Radio Network Controller) in the UTRAN system;

The mobility management network element is an SGSN (Serving GPRS Support Node Service GPRS Support Node) in a GERAN (GSM EDGE Radio Access Network GSM EDG Radio Access Network)/UTRAN (UMTS Territorial Radio Access Network UMTS Terrestrial Radio Access Network) network or MSCZVLR.

FIG. 1 is a flowchart of Embodiment 1 of a method for accessing user equipment according to the present invention. As shown in Figure 1, the method includes:

S101. The core network element acquires capability information or version information of the user equipment UE. The capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports an extended timer. The first request message may be a (Joint) Attach/Routing Area Update Request message.

In the specific implementation process of the S101, the home subscriber server obtains the second request message sent by the mobility management network element, where the second request message includes the capability information or version information, and the mobility management network element Obtaining the capability information or version information from the received first request message sent by the user equipment.

The information included in the second request sent by the mobility management network element may include information about the short message supported by the mobility network element, in addition to the capability information or version information of the user equipment, where the support information indicates that the mobility network element can be The user equipment is supported in the current network, and the short message service can be obtained in the accessed PS domain.

When the first request message that the user equipment includes the capability information or the version information in the first request message is sent to the mobility management network element, the user equipment directly sends the first request to the mobility management network element by using the sending module; Optionally, the sending module of the user equipment may send the capability information or the version information to the network element that has the receiving and sending capability, where the network element may obtain the capability information or version information of the user equipment, and then the network element sends the capability information or version. The information is sent to the mobility management network element.

The capability information or version information of the user is used by the mobility management network element or the HSS to determine whether to allow the user equipment to access in the CS domain according to the user data information of the UE, that is, the subscription data information of the UE; The user equipment capability is that the user equipment capability is capable of acquiring the PS domain service when the user equipment is not registered in the CS domain, or is rejected by the CS domain, or is delayed by the CS domain. In particular, PS domain services can be provided by LTE. The CS domain network is deferred to access. The network side can provide a timer value to notify the UE that the timer can be accessed after the timer expires.

The version information of the user equipment may be, for example, the version information of the user equipment is the R1 1 version or a later version, and the user has the PS only capability.

The foregoing capability information may also be that the user equipment processes the network side to provide a timer value. The capability information may be an independent cell to identify the user equipment, or may be displayed by one or more other cells or implicitly. Logo. For example, carrying a specific cell, that is, identifying that the user equipment has the above PS only capability, the cell may have other meanings. The present invention also does not limit the capability information by using a special cell identifier; it can share a cell with other information, and the cell identifies a plurality of information, one of which is the PS only capability of the UE. S102. The core network element determines, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the CS domain.

Specifically, if the UE has the capability defined in S101, and the subscription data of the UE is “PS and SMS only”, the user equipment is not allowed to register in the CS domain. The determining that the UE does not allow the user equipment to register in the CS domain may also refer to other factors, such as SGSN preference (the SGSN preference) is to provide services in the SGSN, such as SMS.

Or, if the UE does not have the capability defined in step 1, or the CS domain subscription of the UE, in addition to the SMS, and other subscriptions permit the UE device to register in the CS domain, the user equipment is not allowed to register in the CS domain, and other factors may be referred to. For example, SGSN preference is not intended to provide services in the SGSN, such as SMS.

In the present invention, the "PS and SMS only" subscription data is that the user equipment has a PS domain subscription, and the CS domain has only subscription data related to the short message, wherein the PS subscription has subscription data related to the short message. Called "PS and SMS only".

Optionally, the core network element may further return a first response message to the user equipment, where the first response message includes indication information, where the indication information is used to indicate that the user equipment is allowed to register in the PS domain and the user equipment is not allowed to be in the CS domain. registered.

Specifically, the home subscriber server sends a message to the mobility management network element that includes the indication that the user equipment is not allowed to register in the CS domain. After receiving the message, the mobility management network element returns a first response message to the user equipment. The first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

Specifically, if the first request message is a joint attach or joint routing area update request message, after the mobility management network element SGSN receives the information of the HSS that does not allow the UE to access in the CS domain, the SGSN does not establish the MSC/VLR. Gs association.

Or, according to the judgment result of S102, the UE is allowed to register in the CS domain, and the home subscriber server does not send an indication that the user equipment is not registered in the CS domain to the mobility management network element, or sends information that allows the user equipment to register in the CS domain, After receiving the message,

Optionally, the home subscriber server can also cancel the registration of the UE in the CS domain, The method is to send a message to the MSC/VLR of the serving UE, cancel the registration of the UE in the MSC/VLR, and cancel the registration of the MSC/VLR in the HSS.

The user equipment access method provided by the embodiment of the present invention can obtain the "PS and SMS only" subscription data of the user equipment, the capability information of the user equipment, and the information of the short message supported by the mobility management network element, and reasonably limit the user equipment. Accessing in the CS domain, obtaining communication services only in the PS domain, reducing signaling interaction between the user equipment and the MSC, reducing the load on the MSC, and improving network utilization.

FIG. 4 is a flowchart of Embodiment 2 of a method for accessing a user equipment according to the present invention. As shown in Figure 2, the method includes:

S201: The user equipment sends the version information or the capability information of the UE to the mobility management network element. The version information or the capability information is directly sent to the mobility management network element or sent to the mobility management network element by using the access network element, where The capability information of the UE is capability information supporting the registration only in the PS domain or capability information supporting the extended timer;

Specifically, the sending module of the user equipment sends a first request message to the mobility management network element, where the first request message includes capability information or version information of the user equipment, and the capability information or version information is as in the first method embodiment of the present invention. As described in the above, it will not be described here.

The capability information or the version information is obtained by the mobility management network element, and is subsequently obtained by the home subscriber server. The specific process is as described in the first method embodiment S 101 of the present invention, and details are not described herein again.

S202: The user equipment receives the indication information that is sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

In S202, the receiving module of the user equipment receives the first response message, and the indication information that is included in the first response message is sent by the sending module of the home subscriber server, and the specific process is as disclosed in the first embodiment of the first method of the present invention. , will not repeat them here.

S203: The user equipment deletes the saved temporary user identifier and the location area identifier information according to the indication information, and updates the mobility management status to an idle state.

After the receiving module of the user equipment receives the indication information included in the first response message, the processing module deletes the saved temporary user identifier and the location area identifier information according to the indication information, and

The CS domain mobility management status is updated to the idle state.

In the second embodiment of the user equipment access method of the present invention, the user equipment moves to mobility management. The network element sends the capability information of the user equipment, and the home subscriber server can obtain the capability information. The home subscriber server is reasonably limited according to the capability information of the user equipment, the subscription data of the user equipment, and the support information of the mobility management network element. The user equipment accesses the CS domain and obtains communication services only in the PS domain, which reduces signaling interaction between the user equipment and the MSC, reduces the load on the MSC, and improves network utilization.

In the first embodiment and the second embodiment of the user equipment access method, the mobility management network element may be a General Packet Radio Service (GPRS) Technical Support Node (SGSN). FIG. 3 is a signaling flowchart of Embodiment 3 of a method for accessing a user equipment according to the present invention. As shown in FIG. 3, the mobility management network element in the third embodiment of the method is exemplified by the SGSN, and the method includes:

S301. The user equipment sends a first request message to the mobility management network element SGSN. The first request message may be a (joint) attachment/routing area update request message to the SGSN, and the household equipment that can be included in the first request message is Version information or capability information of the UE, where the capability information of the UE may be an ability to support registration only in the PS domain, the capability information registered only in the packet switched PS domain means that the user equipment is not registered in the CS domain, or is When the CS domain refuses, or is delayed by the CS domain network, the capability information of the PS domain service can be obtained. In particular, the PS domain service is provided by LTE. Specifically, Long Time Evolved (LTE) is used as an example. User equipment registered in the CS domain is not allowed. If it has the capability of "supporting registration only in the PS domain", after moving to the LTE network, it can initiate joint attachment or tracking. The zone update process is registered in the CS domain to obtain the LTE service.

The above-mentioned CS domain network delays access, and the network side may provide a timer value to notify the UE that the timer expires, deletes, or stops to access. The timer is started or stopped, and the timing of the deletion may be determined by the UE and the network side. The present invention is not limited.

The capability information of the user equipment may also be capability information of the user equipment supporting the timer, and the timer is used to notify the UE to delay (deferred) access to the CS domain, which may be a backoff timer, which is an extended standard timer. Different from the timers in the existing standards.

The above capability information may be used to identify the capabilities of the user equipment by using a separate cell, or may be displayed by one or more other cells or implicitly. For example, if a specific cell is carried, that is, the user equipment is identified as having the PS only capability, the modified cell may have other meanings. The invention also does not limit the capability information with a special cell identifier; it can share a letter with other information. A cell, the cell identifies a plurality of information, and one of the information is a PS only capability of the UE. Therefore, the identification manner of the foregoing capability information may also be the version information of the user equipment. The HS S may determine whether the UE has the foregoing capability according to the version of the UE, and then perform the determination according to the subscription data. For details, refer to step S303.

The version information of the user identifies whether the user is a certain 3GPP specific version or a certain

Specific versions of 3GPP and later, such as R1 1 or R1 1 and later.

S302. The mobility management network element, the SGSN sends a second request message to the HSS, where the second request message includes version information or capability information of the user equipment.

The version information or the capability information may be obtained in step S501 or obtained from the access network element that forwards the first request message, which is not limited by the present invention.

The method for identifying the version information or the capability information is as described in step S501, and details are not described herein.

The foregoing second request message may further include information of the SGSN supporting SMS or a preference of the SGSN, such as whether the SGSN is willing to provide a short message.

S303. The HSS determines, according to the capability information or the version information and the subscription data information of the UE, that the user equipment is not allowed to register in the CS domain.

The subscription data information of the UE is that the PS subscription data of the UE includes the short message subscription data, and the CS domain subscription data only has the information of the subscription data of the short message. For convenience of presentation, the present invention is referred to as "PS and SMS only" signing.

The HSS determines that the user equipment is not allowed to register in the CS domain according to the capability information or the version information and the subscription data information of the UE. Specifically, if the UE has the capability to support registration only in the PS domain or the extended timer defined in step 1, and the subscription data of the UE is "PS and SMS only", the user equipment is not allowed to register in the CS domain. It is determined that the UE does not allow the user equipment to register in the CS domain, and may also refer to other factors, such as SGSN preference (SGSN preference, step S303), in order to provide SMS in the SGSN.

Or, if the UE does not have the capability of registering only in the PS domain as defined in step 1, or does not support the extended timer, or the CS domain subscription of the UE, in addition to the SMS, and other subscriptions permitting the UE device to register in the CS domain, the permission is allowed. The user equipment can also refer to other factors in the CS domain registration. For example, the SGSN preference is not required to provide SMS in the SGSN.

Or when the version of the UE is a specific version of the 3GPP, the HS S is based on the version information of the UE. Judging with the subscription data information, for example, if the version of the UE is R1 1 and later and the subscription data is "PS and SMS only", the UE is not allowed to register in the CS domain. Otherwise registration is allowed. The reference information of the judgment may also include SGSN preference. No longer praise.

In the present invention, the HSS may assume that the SGS supports the short message according to the local configuration, or the SGSN's preference always only hopes that the SGSN provides the short message, and only judges according to the version information or capability information of the UE and the subscription data of the UE. The invention is not limited.

5304. Optionally, the HSS cancels the registration of the UE in the CS domain. Specifically, if the HSS saves the MSC/VLR (Visitor Location Register) information of the serving UE, sends an unregistration message to the mobile switching center MSC/visit location register VLR, and cancels the registration of the MSC/VLR in the HSS, so that The MSC/VLR cancels the registration of the UE at the MSC/VLR to cancel the MS C/VLR to the CS domain of the user equipment.

5305. Optionally, the HSS returns a second response message to the mobility management network element SGSN, where the second response message includes indication information that does not allow the UE to register in the CS domain.

Specifically, according to the judgment result of step S303, the UE is allowed to register in the CS domain, and the HSS does not send an indication to the mobility management network element that the user equipment is not allowed to register in the CS domain, or sends information that allows the user equipment to register in the CS domain.

5306, the mobility management network element SGSN returns a first response message to the user equipment; if receiving the information that the UE does not allow the UE to register in the CS domain, the first response message includes an indication that the UE is not allowed to register in the CS domain. Information, or does not include the above instructions;

Optionally, in S305, if the first request message is a joint attach or joint routing area update request message, after the mobility management network element SGSN receives the information that the HSS does not allow the UE to access in the CS domain, the SGSN does not establish. Gs association to MSC/VLR. If the information that the UE is not allowed to register in the CS domain is received, or the information that allows the UE to register in the CS domain is received, the Gs association to the MSC is established, so that the user equipment can obtain the service in the CS domain; The indication information can be identified by the value of the cell, for example, the 0 identifier is not allowed, the 1 identifier is allowed, and the identifier of the cell is present or not. The presence of the identifier is supported, and the absence of the identifier is not supported, and vice versa. Alternatively, the indication information may be implicitly identified or displayed by other cells, which is not limited by the present invention. In particular, the indication information may also be identified by a timer value, which may be configured by the operator on the mobility management network element SGSN, the timer value indicating the time when the user equipment delays access to the CS domain. After receiving the timer value, the behavior of the UE is as described in step 07. In addition, If the user equipment receives the first response message including the indication information, the user equipment performs S307. If the user equipment receives the first response message that does not include the indication information, S307 is not performed.

S307. If the CS domain temporary identifier and the location area identifier information are saved, the user equipment deletes the saved temporary user identifier and the location area identifier information, and updates the mobility management status to an idle state.

The user equipment receiving the indication information, supports the extended timer, or has the capability of "supporting registration only in the PS domain" or a specific version. After moving to the LTE network, the joint attach or tracking area update process may be initiated to register in the CS domain. , get LTE service.

If the indication information is a timer value, after receiving the timer value, the UE starts a timer, and the duration of the timer is the indicated timer value. During the running of the timer, the UE does not initiate the process of registering to the CS domain. When the timer is timed or timed out, or deleted, the UE may initiate a process of registering to the CS domain. If the user equipment receives the first response message that does not include the indication information, the user equipment does not perform this step, and may arbitrarily select to access the PS domain or the CS domain according to its own needs.

The user equipment access method provided in the third embodiment of the method of the present invention obtains the subscription information of the user equipment, the capability information of the user equipment, or the version information, and the optional short message information of the mobility management network element or the preference of the SGSN is reasonable. The user equipment is restricted to access in the CS domain, and only the communication service is obtained in the PS domain, the signaling interaction between the user equipment and the MSC is reduced, the load of the MSC is reduced, and the network utilization is improved; The network is restricted from accessing the CS domain, but does not affect the access to the CS domain MSC/VLR when the user equipment moves to other networks to obtain communication services.

FIG. 4 is a signaling flowchart of Embodiment 4 of a method for accessing a user equipment according to the present invention. The mobility management network element in the fourth embodiment of the present invention takes the SGSN as an example. As shown in FIG. 4, the method includes:

S401. The user equipment sends a first request message to the SGSN. The first request message may be a routing area update request, and the version information or capability information of the user equipment that may be included in the first request message. Specifically, the capability information definition, the identification mode, and the usage method of the user equipment are as described in step 1 in the third embodiment, and details are not described herein again.

S402: The SGS sends a second request message to the HSS.

S403. The SGSN receives a third response message returned by the HSS, where the third response message includes subscription data information of the user equipment.

The information about the subscription data is as described in Embodiment 3 of the foregoing method, and details are not described herein again. 5404. The SGSN determines, according to the capability information or the version information and the subscription data information of the UE, that the user equipment is not allowed to register in the CS domain. ;

The version information or the capability information may be obtained from the UE in step S601, or obtained from the access network element that forwards the first request message, which is not limited by the present invention.

Determining that the UE is not allowed to register in the CS domain specifically includes: If the UE has the capability defined in step 1, and the subscription data of the UE is "PS and SMS only", the user equipment is not allowed to register in the CS domain. Where it is determined that the UE does not allow the user equipment to register in the CS domain, other factors may also be referred to, such as SGSN preference (the preference of the SGSN) for wishing to provide SMS in the SGSN.

Or, if the UE does not have the capability defined in step 1, or the CS domain subscription of the UE has other subscriptions in addition to the SMS, the UE is allowed to register in the CS domain, and the user equipment is allowed to register in the CS domain. For example, SGSN preference is not intended to provide SMS in the SGSN.

When the version of the UE is a specific version of the 3GPP, the SGS judges according to the version information of the UE and the subscription data information. For example, if the version of the UE is R1 1 and later and the subscription data is "PS and SMS only", the UE is not allowed. Registered in the CS domain. Otherwise registration is allowed. The reference information for the decision may also include an SGSN pre ference. No longer praise.

The SGSN returns a first response message to the user equipment, where the first response message includes the indication that the UE is not allowed to register in the CS domain. The definition of the indication information is as described in step 306 of the third embodiment. . The difference is that the SGSN determines to send the indication information by itself, and the third embodiment sends the indication information after the UE does not allow the UE to access the information in the CS domain.

Optionally, if the first request message is a joint attach or joint routing area update request message, if the result of step S404 is that the UE is not allowed to register in the CS domain, the SGSN does not establish a Gs association to the MSC/VLR. Otherwise establish a Gs association to the MSC/VLR.

In addition, if the user equipment receives the first response message including the indication information, the user equipment performs S406. If the user equipment receives the first response message that does not include the indication information, S406 is not performed.

5406. The user equipment is as described in step S507, and is not described in this embodiment. In this embodiment, after receiving the indication information, the user equipment may initiate an IMSI detach procedure and separate from the CS domain. If the user equipment receives the first response message that does not include the indication information, the user equipment can arbitrarily select to access the PS domain or the CS domain according to its own needs.

The user equipment access method provided in Embodiment 4 of the method of the present invention, by acquiring the subscription data of the user equipment, the capability information or the version information of the user equipment, and the optional short message information of the mobility management network element or the preference of the SGSN, The SGSN can reasonably restrict the access of the user equipment in the CS domain, obtain the communication service only in the PS domain, reduce the signaling interaction between the user equipment and the MSC, reduce the load of the MSC, and improve the network utilization; The method enables the user equipment to access the CS domain in the current network, but does not affect the user equipment to access the CS domain when moving to other networks, and obtain the communication service provided by the CS domain.

With the continuous improvement of the technical level, the functions of the user equipment are constantly improving, but in a communication network, each new and old user equipment is always included. For the early user equipment, such as the user equipment whose version information is R1 1 before, If the indication information sent by the home subscriber server is not received, other information may be returned to the user equipment to enable the user equipment to register in the PS domain and the CS domain.

In addition, in the foregoing method embodiment, the mobility management network element is not limited to the SGSN, and may be flexibly changed according to requirements. For example, the mobility management network element of the foregoing method embodiment may be an MSC/VLR.

FIG. 5 is a fifth embodiment of a method for accessing a user equipment according to the present invention. As shown in FIG. 5, the mobility management network element is an MSC, and the method includes:

S501: The user equipment sends a first request message to the MSC. The first request message may be a location area update request, and the version information or capability information of the user equipment that may be included in the first request message.

Specifically, the capability information definition, the identification mode, and the usage method of the user equipment are as described in the third embodiment, and details are not described herein again.

S502. The MSC sends a second request message to the HSS, where the second request message includes version information or capability information of the user equipment.

The method for identifying the version information or the capability information is as described in step S501, and details are not described herein. S503. The HSS determines, according to the capability information or the version information and the subscription data information of the UE, that the user equipment is not allowed to register in the CS domain.

The specific manner of the HSS determination may be as shown in step S503 of the embodiment, and details are not described herein. In this embodiment, the HSS may determine, according to the version information or the capability information of the UE, whether the SGSN of the serving UE is registered as a short message serving node, if the UE supports the registration only in the PS domain or supports the extended timer, or the version of the UE is a certain A specific version, and the SGSN is registered as a short message service node, the HSS determines that the user equipment is not allowed to register in the CS domain. Otherwise it is determined that the UE can register in the CS domain. The information in which the SGSN is registered as a short message node is stored in the HSS.

S504: The HSS returns a second response message to the MSC, where the second response message includes the indication information, or does not include the indication information. The indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

Specifically, according to the judgment result of step S503, the UE is allowed to register in the CS domain, and the HSS does not send an indication to the MSC that the user equipment is not allowed to register in the CS domain, or sends information that allows the user equipment to register in the CS domain.

S505. The MSC returns a first response message to the user equipment. The first response message includes indication information that does not allow the UE to register in the CS domain.

The method for identifying the indication information is as described in the step S506 of the embodiment, and the SGSN is replaced by the MSC, which is not described in this embodiment.

In addition, if the user equipment receives the first response message including the indication information, the user equipment performs S506, and if the user equipment receives the first response message that does not include the indication information, the user equipment does not perform

5506. If the CS domain temporary identifier and the location area identifier information are saved, the user equipment deletes the saved temporary user identifier and the location area identifier information, and updates the mobility management status to an idle state.

If the indication information is a timer value, after receiving the timer value, the UE starts a timer, and the duration of the timer is the indicated timer value. During the running of the timer, the UE does not initiate the process of registering to the CS domain. When the timer is timed or timed out, or deleted, the UE may initiate a process of registering to the CS domain.

User equipment that receives the indication, supports extended timers, or has "support only in PS" After the domain registration "capability" or for a specific version, after moving to the LTE network, the joint attach or tracking area update process can be initiated to register in the CS domain to obtain the LTE service.

If the user equipment receives the first response message that does not include the indication information, the user equipment does not perform S06, and may arbitrarily select to access the PS domain or the CS domain according to its own needs.

The access method of the user equipment provided in the fifth embodiment of the method of the present invention, by acquiring the subscription data of the user equipment, the capability information of the user equipment, or the version information, reasonably restricting the user equipment to access in the CS domain, and acquiring the communication service only in the PS domain. The signaling interaction between the user equipment and the MSC is reduced, the load of the MSC is reduced, and the network utilization is improved. In addition, the method allows the user equipment to be restricted to access the CS domain in the current network, but does not affect the user equipment to move to other When accessing the network, the MSC/VLR of the CS domain accesses the communication service.

FIG. 6 is a signaling flowchart of Embodiment 6 of a method for accessing a user equipment according to the present invention. As shown in FIG. 6, the mobility management network element is an MSC, and the method includes:

5601. The user equipment sends a first request message to the MSC. The first request message may be a location area update request, where the first request may be capability information or version information of the user equipment included in the message.

Specifically, the capability information definition, the identification mode, the usage method, and the definition of the version information of the user equipment are as described in the first embodiment of the method, and details are not described herein again.

S602: The MSC sends a second request message to the HSS.

S603, the MSC receives a third response message returned by the HSS, where the third response message includes subscription data information of the user equipment.

The information about the subscription data is as described in Embodiment 3 of the foregoing method, and details are not described herein again.

5604. The MSC determines, according to the capability information or the version information and the subscription data information of the UE, that the user equipment is not allowed to register in the CS domain. ;

Determining that the UE is not allowed to register in the CS domain specifically includes: If the UE has the capability defined in step 1, and the subscription data of the UE is "PS and SMS only", the user equipment is not allowed to register in the CS domain. .

Alternatively, if the UE does not have the capability defined in S601, or the CS domain subscription of the UE has other subscriptions in addition to the SMS, the UE is allowed to register in the CS domain. When the version of the UE is a specific version of the 3GPP, the MSCZVLR determines according to the version information of the UE and the subscription data information. For example, if the version of the UE is R1 1 and later and the subscription data is "PS and SMS only", the UE is not allowed. Registered in the CS domain. Otherwise registration is allowed.

S605. The MSC sends a first response message to the user equipment, where the first response message includes the foregoing indication information or does not include indication information that does not allow the UE to register in the CS domain.

The definition of the indication information is as described in the third step 306 of the embodiment, and details are not described herein again. The difference is that the MSC/VLR determines to send the indication information by itself in the embodiment. In the fifth embodiment, the UE does not allow the UE to send the indication information after receiving the information in the CS domain.

In addition, if the user equipment receives the first response message including the indication information, the user equipment performs S606.

5606. If the CS domain temporary identifier and the location area identifier information are saved, as shown in FIG. 8, the user equipment deletes the saved temporary user identifier and the location area identifier information, and updates the CS domain mobility management state to an idle state.

The user equipment that receives the indication information has the capability of "supporting registration only in the PS domain" or a specific version. After moving to the LTE network, the joint attach or tracking area update process may be initiated to register in the C S domain to obtain the LTE service.

If the user equipment receives the first response message that does not include the indication information, the user equipment can arbitrarily select to access the PS domain or the CS domain according to its own needs.

The access method of the user equipment provided in the sixth embodiment of the method of the present invention, by acquiring the subscription data of the user equipment, the capability information of the user equipment, and the version information, the mobility management network element can reasonably limit the access of the user equipment in the CS domain, only in the The PS domain obtains the communication service, reduces the signaling interaction between the user equipment and the MSC, reduces the load of the MSC, and improves the network utilization. In addition, the method enables the user equipment to be restricted to access the CS domain in the current network, but does not affect When the user equipment moves to another network, it accesses the CS domain MSC/VLR to obtain the communication service provided by the CS domain.

The server provided in the second embodiment of the present invention is configured to obtain the capability information of the user equipment, the support information of the mobility management network element, and the subscription information of the user equipment locally stored by the home subscriber server. Through the cooperation of the processor and the transmitting transmitter, the user equipment is reasonably limited to access in the CS domain, and only the communication service is obtained in the PS domain, the signaling interaction between the user equipment and the MSC is reduced, and the load of the MSC is reduced, and the impact is affected. The MSC provides services for terminals that can only obtain services in the CS domain, and improves network utilization; In addition, the method enables the user equipment to access the CS domain in the current network, but does not affect the user equipment to access the CS domain when moving to other networks, and obtain the communication service provided by the CS domain.

In the first embodiment of the mobility management network element of the present invention, the receiving module and the obtaining module obtain the subscription data of the user equipment, the capability information of the user equipment, and the support information of the mobility management network element, and then the determining module and the sending module are reasonable. The user equipment is restricted to access in the CS domain, and only the communication service is obtained in the PS domain, which reduces the signaling interaction between the user equipment and the MSC, and does not overload the MSC, affecting the MSC to obtain only in the CS domain. The serviced terminal provides the service and improves the network utilization. In addition, the method enables the user equipment to be restricted to access the CS domain in the current network, but does not affect the user equipment to access the CS domain when moving to other networks, and obtain the CS domain to provide Communication service.

The embodiment of the present invention further provides a core network element, which may be a home signing subscriber server (HSS), or an SGSN or an MSC. FIG. 7 is a schematic structural diagram of Embodiment 1 of a core network element according to the present invention. As shown in FIG. 7, the home subscriber network server includes: an obtaining module 901, configured to acquire capability information or version information of the user equipment UE, where the capability information of the UE is to support capability information registered only in the PS domain or support an extended timer. Capability information;

The determining module 902 is configured to determine, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the C S domain.

The user data information of the UE is the subscription data information of the UE:

The subscription data information of the UE is information indicating that the PS domain subscription data of the UE includes short message subscription data, and the C S domain subscription data only has subscription information of the short message.

8 is a schematic structural diagram of Embodiment 2 of a core network element of the present invention. As shown in FIG. 8, on the basis of the embodiment shown in FIG. 7, the core network element is a mobility management network element, and the mobility management network The core network element is a support node SGSN or a mobile switching center MSC that serves the general wireless packet service, and the core network element includes:

The first sending module 903 is configured to send a second request message to the home subscriber server; the receiving module 904 is configured to receive data information of the UE that is sent by the home subscriber server, and is further configured to receive the second information sent by the mobility management network element. a request message, where the second request message includes the capability information or the version information, where the capability information is obtained by the mobility management network element from the user equipment or the access network element; The second sending module 905 is configured to return a first response message to the user equipment, where the first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

The core network element is an HSS, and the core network element further includes:

The third sending module 906 sends a message to the mobility management network element, including indicating that the user equipment is not allowed to register in the CS domain, so that the mobility management network element sends the indication information to the user equipment, where the indication information is used to indicate that the user equipment is not allowed. Registered in the CS domain.

The receiving module 907 is configured to receive a second request message sent by the mobility management network element, where the second request message includes capability information or version information, where the capability information is obtained by the mobility management network element from the user equipment or the access network element.

The processing module 908 is configured to cancel registration of the UE in the CS domain.

The core network element is the HSS, and the user data information of the UE is: The information of the SGSN of the monthly service UE is registered as the short message service node.

The capability information for registering only in the packet-switched PS domain means that the user equipment is not registered in the CS domain, or is rejected by the CS domain, or the CS domain network is deferred, and the capability information of the PS domain service can be obtained.

In addition, the PS service is provided by LTE.

When the indication information received by the user equipment is a timer value, the timer value indicates the time when the user equipment delays access to the CS domain.

Each of the foregoing modules corresponds to the method embodiments of the present invention, and details are not described herein again.

In the first embodiment of the home subscriber network of the present invention, the acquiring module acquires the capability information or the version information of the UE, and the determining module determines, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to be in the The CS domain registration reduces the signaling interaction between the user equipment and the MSC, and does not overload the MSC, affecting the MSC to provide services for terminals that can only obtain services in the CS domain, and improving network utilization; The method enables the user equipment to access the CS domain in the current network, but does not affect the user equipment to access the CS domain when moving to other networks, and obtain the communication service provided by the CS domain.

FIG. 9 is a schematic structural diagram of Embodiment 3 of a core network element according to the present invention. As shown in FIG. 9, the core network element includes:

The receiver 01 1 is configured to acquire capability information or version information of the user equipment UE, and the capability information of the UE is capability information that supports registration only in the PS domain or capability information that supports the extended timer. Interest rate

The processor 012 is configured to determine, according to the capability information or the version information and the user data information of the UE, that the user equipment is not allowed to register in the CS domain.

10 is a schematic structural diagram of Embodiment 4 of a core network element of the present invention. On the basis of the embodiment shown in FIG. 9, the core network element is a mobility management network element, and the mobility management network element is an SGSN or an MSC. The core network element further includes:

The first sender 013 is configured to send a second request message to the home subscriber server.

The receiver 014 is further configured to receive data information of the UE sent by the home subscriber server.

The second transmitter 015 is configured to return a first response message to the user equipment, where the first response message includes indication information, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

When the core network element is HSS, it also includes

The third transmitter 016 sends a message to the mobility management network element, including indicating that the user equipment is not allowed to register in the CS domain, so that the mobility management network element sends indication information to the user equipment, where the indication information is used. Indicates that user equipment is not allowed to register in the CS domain.

The receiver 017 is configured to receive a second request message sent by the mobility management network element, where the second request message includes the capability information or version information, where the capability information is used by the mobility management network element from the user equipment. Or access the network element to obtain.

The processor 018 is configured to cancel registration of the UE in the CS domain.

The user data information of the UE is: The SGSN of the serving UE is registered as the information of the short message service node.

The above PS domain service is provided by LTE.

In addition, when the indication information is a timer value, the timer value indicates a time when the user equipment delays accessing the CS domain. The invention also provides a user equipment. FIG. 11 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention. As shown in FIG. 11, the user equipment specifically includes:

The sending module 041 is configured to send the version information or the capability information of the UE to the mobility management network element. The version information or the capability information is directly sent to the mobility management network element or sent to the mobility management network element by using the access network element, where the UE The capability information is capability information that supports registration only in the PS domain or capability information that supports extended timers;

The receiving module 042 is configured to receive the indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

The update module 043 is configured to delete the saved temporary user identifier and the location area identifier information according to the indication information, and update the CS domain mobility management state to an idle state.

FIG. 12 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention. On the basis of the embodiment shown in FIG. 11, the user equipment may further include:

The processing module 044 is configured to start a timer, and initiate a registration process of the CS domain after the timer stops/times out or is deleted.

Each of the above modules corresponds to the method embodiment of the present invention, and details are not described herein again.

In the first embodiment of the user equipment of the present invention, the capability information of the user equipment is sent to the mobility management network element by using the sending module, and the user equipment can be reasonably restricted to access in the CS domain, and only the communication service is obtained in the PS domain, and the terminal is reduced. The signaling interaction between the MSC and the MSC does not overload the MSC, affecting the MSC to provide services for terminals that can only obtain services in the CS domain, and improving network utilization. In addition, the method limits the terminal to the current network. Access to the CS domain, but does not affect the access of the terminal to the CS domain when moving to other networks, to obtain the communication services provided by the CS domain.

FIG. 13 is a schematic structural diagram of Embodiment 3 of a user terminal according to the present invention. As shown in FIG. 13, the user equipment specifically includes:

a transmitter 051, configured to send version information or capability information of the UE to the mobility management network element; the version information or the capability information is directly sent to the mobility management network element or sent to the mobility management network element by using the access network element, where the UE The capability information is capability information that supports registration only in the PS domain or capability information that supports extended timers;

The receiver 052 is configured to receive indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

The processor 053 is configured to delete the saved temporary user identifier and the location area according to the indication information. The identification information updates the CS domain mobility management state to an idle state.

Further, it is also used to start a timer, and initiate a registration process to the CS domain after the timer stops/times out or is deleted.

The above-mentioned transmitter, receiver, and processor correspond to the method embodiment of the present invention, and details are not described herein again. In the second embodiment of the user equipment of the present invention, the capability information of the terminal is sent to the mobility management network element by the sender, and the user equipment can be reasonably restricted to access in the CS domain, and only the communication service is obtained in the PS domain, and the terminal and the terminal are reduced. The signaling interaction between the MSCs does not overload the MSC, affecting the MSC to provide services for terminals that can only obtain services in the CS domain, and improving network utilization. In addition, the method allows the terminal to be restricted in the current network. Enter the CS domain, but it will not affect the access of the terminal to the CS domain when it moves to other networks, and obtain the communication service provided by the CS domain.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing storage device includes the following steps: The storage medium includes: ROM, RAM, disk or optical disk, and the like, which can store program codes.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A user equipment access method, characterized by including:

The core network element obtains the capability information or version information of the user equipment UE. The capability information of the UE is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

The core network element determines that the user equipment is not allowed to register in the circuit-switched CS domain based on the capability information or version information and the user data information of the UE.

2. The method according to claim 1, characterized in that the user data information of the UE is the subscription data information of the UE,

The subscription data information is information indicating that the PS domain subscription data of the UE includes short message subscription data, and the CS domain subscription data only contains short message subscription data.

3. The method according to claim 1 or 2, characterized in that: the core network element is a mobility management network element, and the mobility management network element is a support node SGSN or mobile switching serving general wireless packet services Center MSC, the method further includes:

The mobility management network element sends a second request message to the home user server;

The mobility management network element receives the data information of the UE sent by the home user server.

4. The method according to any one of claims 1 to 3, wherein the core network element is a mobility management network element, the mobility management network element is an SGSN or an MSC, and the method further includes: :

The core network element returns a first response message to the user equipment, where the first response message includes indication information, and the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

5. The method according to claim 1, wherein the core network element is a home subscriber server HSS, and the method further includes:

The core network element sends a message including an indication that the user equipment is not allowed to register in the CS domain to the mobility management network element, so that the mobility management network element sends indication information to the user equipment, and the indication information is used to Indicates that the user device is not allowed to register in the CS domain.

6. The method according to claim 1 or 5, wherein the core network element is HSS, and the method further includes: The core network element receives a second request message sent by the mobility management network element. The second request message includes the capability information or version information. The capability information is obtained from the user equipment by the mobility management network element. Or access the network element Otori.

7. The method according to claim 1 or 5 or 6, characterized in that the core network element is an HSS, and the method further includes:

The core network element cancels the UE's registration in the CS domain.

8. The method according to claim 1 or 5 or 6 or 7, characterized in that the core network element is an HSS, and the user data information of the UE is:

Information about the SGSN serving the UE registered as a short message service node.

9. The method according to any one of claims 1 to 8, characterized in that:

The capability information that supports PS domain registration only in packet switching means that the user equipment can obtain PS domain service capability information when the user equipment is not registered in the CS domain, or is rejected by the CS domain, or access is delayed by the CS domain network.

10. The method according to claim 9, characterized in that,

PS domain services are provided by LTE.

11. The method according to claim 3 or 4, characterized in that when the indication information is a timer value, the timer value indicates the time for the user equipment to delay access to the CS domain.

12. A user equipment access method, characterized by including:

The user equipment sends the version information or capability information of the UE to the mobility management network element; the version information or capability information is sent directly to the mobility management network element or is sent to the mobility management network element through the access network element, and the UE's Capability information is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

The user equipment receives the instruction information sent by the mobility management network element, and the instruction information is used to indicate that the user equipment is not allowed to register in the circuit-switched CS domain;

The user equipment deletes the saved temporary user identification and location area identification information according to the instruction information, and updates the CS domain mobility management state to an idle state.

13. The method according to claim 12, wherein the indication information is a timer value, and the method further includes:

The user equipment starts a timer and initiates a registration process to the CS domain after the timer stops/times out or is deleted.

14. A core network element, characterized by including:

The acquisition module is used to obtain the capability information or version information of the user equipment UE. The capability information of the UE is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

A determining module configured to determine, based on the capability information or version information and the user data information of the UE, that the user equipment is not allowed to register in the circuit-switched CS domain.

15. The core network element according to claim 14, wherein the user data information of the UE is the subscription data information of the UE,

The subscription data information of the UE is information indicating that the PS domain subscription data of the UE includes short message subscription data, and the CS domain subscription data only contains short message subscription data.

16. The core network element according to claim 14 or 15, characterized in that: the core network element is a mobility management network element, and the mobility management network element is a support node SGSN serving general wireless packet services Or the mobile switching center MSC, the core network element also includes: a first sending module, used to send a second request message to the home subscriber server; a receiving module, receiving the UE sent by the home subscriber server data information.

17. The core network element according to any one of claims 14 to 16, characterized in that: the core network element is a mobility management network element, and the mobility management network element is an SGSN or MSC, and the Core network elements also include:

The second sending module is configured to return a first response message to the user equipment, where the first response message includes indication information, and the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

18. The core network element according to claim 14, wherein the core network element is an HSS, and the core network element further includes:

The third sending module sends an instruction to the mobility management network element that the user equipment is not allowed to be in the

CS domain registration message, so that the mobility management network element sends indication information to the user equipment, and the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

19. The core network element according to claim 14 or 18, characterized in that the core network element is an HSS, and the core network element further includes:

A receiving module, configured to receive a second request message sent by the mobility management network element, the second The request message includes the capability information or version information, and the capability information is obtained by the mobility management network element from the user equipment or access network element.

20. The core network element according to claim 14, 18 or 19, wherein the core network element is an HSS, and the core network element further includes:

Processing module, used to cancel the registration of the UE in the CS domain.

21. The core network element according to claim 14 or 18 or 19 or 20, characterized in that the core network element is an HSS, and the user data information of the UE is: the SGSN serving the UE is registered as a short message Service node information.

22. The core network element according to any one of claims 14 to 20, wherein the capability information supporting registration only in the packet switching PS domain means that the user equipment is not registered in the CS domain, or is When the CS domain rejects or access is delayed by the CS domain network, the capability information of the PS domain service can be obtained.

23. The core network element according to claim 22, characterized in that the PS domain service is provided by UTE.

24. The core network element according to claim 16 or 17, characterized in that when the indication information is a timer value, the timer value indicates the time for the user equipment to delay access to the CS domain.

25. A user equipment, characterized by: including:

A sending module, configured to send the version information or capability information of the UE to the mobility management network element; the version information or capability information is sent directly to the mobility management network element or sent to the mobility management network element through the access network element, so The capability information of the UE described above is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

A receiving module, configured to receive indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the circuit-switched CS domain;

An update module, configured to delete the saved temporary user identification and location area identification information according to the instruction information, and update the CS domain mobility management status to an idle state.

26. The user equipment according to claim 25, wherein the indication information is a timer value, and the user equipment further includes:

The processing module is used to start the timer and initiate the registration process to the CS domain after the timer stops/times out or is deleted.

27. A core network element, characterized by including: A receiver, used to obtain the capability information or version information of the user equipment UE, where the capability information of the UE is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

The processor is configured to determine, based on the capability information or version information and the user data information of the UE, that the user equipment is not allowed to register in the circuit-switched CS domain.

28. The core network element according to claim 27, wherein the user data information of the UE is the subscription data information of the UE:

29. The core network element according to claim 27 or 28, characterized in that: the core network element is a mobility management network element, and the mobility management network element is a support node SGSN serving general wireless packet services Or the mobile switching center MSC, the core network element further includes: a first transmitter, used to send a second request message to the home user server; a receiver, to receive the data of the UE sent by the home user server. information.

30. The core network element according to any one of claims 27 to 95, characterized in that: the core network element is a mobility management network element, and the mobility management network element is an SGSN or MSC, and the Core network elements also include:

The second sender is configured to return a first response message to the user equipment, where the first response message includes indication information, and the indication information is used to indicate that the user equipment is not allowed to register in the CS domain.

31. The core network element of claim 27, wherein the core network element is an HSS, and the core network element further includes:

The third sender sends a message including an indication that the user equipment is not allowed to register in the CS domain to the mobility management network element, so that the mobility management network element sends indication information to the user equipment, and the indication information is used to indicate User devices are not allowed to register in the CS domain.

32. The core network element according to claim 27 or 31, characterized in that the core network element is an HSS, and the core network element further includes:

A receiver configured to receive a second request message sent by the mobility management network element, where the second request message includes the capability information or version information, and the capability information is obtained by the mobility management network element from the user equipment or Obtain from the access network element.

33. The core network element described in claim 27 or 31 or 32, characterized in that the core network element is an HSS, and the core network element further includes:

Processor, used to cancel the registration of the UE in the CS domain.

34. The core network element according to claim 27 or 31 or 32 or 33, characterized in that the core network element is an HSS, and the user data information of the UE is: the SGSN serving the UE is registered as a short message Service node information.

35. The core network element according to any one of claims 27 to 34, characterized in that the capability information supporting registration only in the packet switching PS domain means that the user equipment is not registered in the CS domain, or is not registered by the CS domain. When the domain is rejected or access is delayed by the CS domain network, the capability information of the PS domain service can be obtained.

36. The core network element according to claim 27, characterized in that the PS domain service is provided by UTE.

37. The core network element according to claim 29 or 30, characterized in that when the indication information is a timer value, the timer value indicates the time for the user equipment to delay access to the CS domain.

38. A user equipment, characterized by: including:

A transmitter configured to send version information or capability information of the UE to the mobility management network element; the version information or capability information is sent directly to the mobility management network element or to the mobility management network element through the access network element, so The capability information of the UE described above is capability information that supports registration only in the packet switching PS domain or capability information that supports extended timers;

A receiver, configured to receive indication information sent by the mobility management network element, where the indication information is used to indicate that the user equipment is not allowed to register in the packet switching CS domain;

The processor is configured to delete the saved temporary user identification and location area identification information according to the instruction information, and update the CS domain mobility management status to the idle state; and is also used to start the timer after the timer stops/times out or is deleted. Initiate the registration process to the CS domain.

39. The user equipment according to claim 38, wherein the indication information is a timer value, and the processor is further configured to: start a timer, and initiate to the CS domain after the timer stops/times out or is deleted. registration process.