CN104301950B

CN104301950B - The implementation method and relevant apparatus of CS business in a kind of LTE network

Info

Publication number: CN104301950B
Application number: CN201410494275.5A
Authority: CN
Inventors: 邹烨; 吴晓波; 黄非; 朱思红
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-09-24
Filing date: 2014-09-24
Publication date: 2018-12-07
Anticipated expiration: 2034-09-24
Also published as: CN104301950A

Abstract

The embodiment of the invention discloses the implementation methods and relevant apparatus of CS business in a kind of LTE network, for promoting the flexible development of CS business.The method comprise the steps that when UE sends joint Attach Request message to MME, visited place circuit domain core network element receives the SGs location update request message that the MME is sent, and the SGs location update request message is sent after the UE is attached to EPC by the MME；The UE is attached to the domain CS by the visited place circuit domain core network element；The visited place circuit domain core network element generates instruction information, and the instruction information is used to indicate the mode that should be used when the UE carries out CS business；The visited place circuit domain core network element responds the SGs location updating received message comprising the instruction information to the MME, so that the MME, which controls the UE according to the instruction information, carries out CS business.

Description

The implementation method and relevant apparatus of CS business in a kind of LTE network

Technical field

The present invention relates to the implementation methods and device of CS business in field of communication technology more particularly to a kind of LTE network.

Background technique

With the increase of wireless data service demand and the commercial condition of LTE (Long Term Evolution, long term evolution) Maturation, operator is on the basis of existing 2G/3G network, by LTE network is gradually introducing to meet the nothing that people quickly increase Line data traffic requirement.In the VoLTE (Voice for being based on IMS (IP Multimedia Subsystem, IP multimedia subsystem) Over LTE, the voice based on LTE) solution it is a large amount of deployment before, CS business solution is very one section long in LTE network The cooperation dependent on G/U (GERAN/UTRAN) CS (Circuit Switch, circuit switching) access is still in time, such as CSFB (Circuit Switched Fallback, circuit domain dropping) and SRVCC (Single Radio Voice Call Continuity, the business continuance of single wireless access) Based CSFB.Above-mentioned CSFB and SRVCC Based CSFB is difference Two kinds of CS business solutions of the network architecture, the network architecture of differentiation also determine the two in the mode for carrying out CS business Difference.

CSFB framework can be found in Figure 1A, mainly handle EPC (Evolved by the SGs interface between MME and MSC Packet Core network, Evolved Packet Core) and the domain CS between mobile management and paging process etc., work as UE When initiating CS business, MME (Mobility Management Entity, mobility management entity) can require UE to use The mode of Redirection/PSHO falls back to UE in 2G/3G network.

SRVCC Based CSFB scheme is the improvement and enhancing to CSFB scheme, for the technical specification TR of 3GPP publication 23.772V0.1.1, SRVCC Based framework can be found in Figure 1B, can pass through the double nip (Sv and SGs) between MME and MSC It supports to shorten call delay.It is with the main distinction of CSFB framework, when UE initiates CS business, UE net from LTE to 2G/3G Network be by the way of SRVCC HO, meanwhile, network side also uses Handover mode to establish bearing resource in advance.It is answered some With in scene, in order to reduce influence of the SRVCC Based CSFB scheme to existing network side network element, especially VMSC (Visited Mobile-services Switching Centre, visited mobile switching center) (VMSC may be old frame Structure upgrades the ability for supporting SRVCC without evolution), the anchoring that a Proxy MSC completes process generally can be newly disposed, by Proxy MSC substitutes VMSC and provides professional ability.

In current application scenarios, UE, which is defined to default, carries out CS business using intrinsic a certain mode, can not Reasonable selection carries out the mode of CS business according to the actual situation.

Summary of the invention

The embodiment of the invention provides the implementation methods and relevant apparatus of CS business in a kind of LTE network, can promote CS industry The flexible development of business.

The first aspect of the embodiment of the present invention provides a kind of implementation method of CS business in LTE network, when UE is sent to MME When joint Attach Request message, comprising:

Visited place circuit domain core network element receives the SGs location update request message that the MME is sent, SGs described Update request message is set to send after the UE is attached to EPC by the MME；

The UE is attached to the domain CS by the visited place circuit domain core network element；

The visited place circuit domain core network element generates instruction information, and the instruction information is used to indicate when the UE is opened The mode that should be used when opening up CS business；

The visited place circuit domain core network element responds the SGs location updating comprising the instruction information to the MME Received message, so that the MME, which controls the UE according to the instruction information, carries out CS business.

In conjunction with the embodiment of the present invention in a first aspect, the first implementation of the first aspect in the embodiment of the present invention In, the instruction information is used to indicate the UE and is based on first network framework development CS business or the UE based on the second network rack Structure carries out CS business.

In conjunction with the first implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In second of implementation, the first network framework is CSFB framework；Second network architecture is SRVCC Based frame Structure.

In conjunction with second of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In the third implementation, the UE is attached to the domain CS and includes: by the visited place circuit domain core network element

The visited place circuit domain core network element is sent to HLR/HSS updates request message；

The visited place circuit domain core network element receives the update response message that the HLR/HSS is responded, the update Response message includes user data；

The visited place circuit domain core network element generates instruction information

The visited place circuit domain core network element generates instruction information according to the user data.

In conjunction with the third implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 4th kind of implementation, the user data includes user signing contract information；

The visited place circuit domain core network element generates instruction information according to the user data

The visited place circuit domain core network element judges whether the user signing contract information meets preset user's signing Condition,

If so, generating the first instruction information, the first instruction information is used to indicate the UE and is opened based on CSFB framework Open up CS business；

If it is not, then generating second indication information, the second indication information is used to indicate the UE and is based on SRVCC Based Framework carries out CS business.

In conjunction with the 4th kind of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 5th kind of implementation, it is preset that the visited place circuit domain core network element judges whether the user signing contract information meets User's signing conditions include:

The visited place circuit domain core network element judges whether the user signing contract information specifies the UE to be based on CSFB Framework carries out CS business, if so, confirmation meets preset user's signing conditions.

In conjunction with the third implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 6th kind of implementation, the user data includes user identifier；

The visited place circuit domain core network element judges whether the user identifier meets preset user identifier condition,

In conjunction with the 6th kind of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 7th kind of implementation, the user identifier includes the mobile number of the UE；

Then the visited place circuit domain core network element judges whether the user identifier meets preset user identifier item Part includes:

The visited place circuit domain core network element judge the number section of the mobile number of the UE whether in preset number section, if It is that then confirmation meets preset user identifier condition.

In conjunction with the third implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 8th kind of implementation, the user data includes user professional ability information；

The visited place circuit domain core network element judges whether the user professional ability information meets preset user Professional ability condition,

In conjunction with the 8th kind of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In 9th kind of implementation,

The visited place circuit domain core network element judges whether the user professional ability information meets preset user Professional ability condition includes:

It is default that the visited place circuit domain core network element judges whether user professional ability information shows that the UE is ordered Business, if so, confirmation meets preset user professional ability condition.

In conjunction with second of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In tenth kind of implementation, the method also includes:

Information is locally configured in the visited place circuit domain core network element acquisition；

The visited place circuit domain core network element generates instruction information according to information is locally configured.

In conjunction with the tenth kind of implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention In a kind of tenth implementation, the visited place circuit domain core network element generates instruction packet according to information is locally configured It includes:

It is locally configured whether information meets preset configuration condition described in the visited place circuit domain core network element judgement,

In conjunction with a kind of the tenth implementation of the first aspect of the embodiment of the present invention, in the first aspect of the embodiment of the present invention The 12nd kind of implementation in, be locally configured described in the visited place circuit domain core network element judgement information whether meet it is pre- If configuration condition include:

It is locally configured whether information shows the visited place circuit described in the visited place circuit domain core network element judgement Domain core net network element only supports the UE to carry out the mode of operation of CS business based on CSFB framework, presets if so, confirmation meets Configuration condition.

The second aspect of the embodiment of the present invention provides a kind of implementation method of CS business in LTE network, comprising:

MME receives the joint Attach Request message that UE is sent；

The UE is attached to EPC by the MME；

The MME sends SGs location update request message to visited place circuit domain core network element；

The MME receives the SGs location updating received message that the visited place circuit domain core network element is responded；It is described SGs location updating received message carries instruction information, and the instruction information is used to indicate should make when the UE carries out CS business Mode；The UE is attached to CS in the visited place circuit domain core network element by the SGs location update request message It is sent behind domain.

After UE joint is adhered to successfully, the MME controls the UE according to the instruction information and carries out CS business.

In conjunction with the second aspect of the embodiment of the present invention, in the first implementation of the second aspect of the embodiment of the present invention In,

The instruction information is used to indicate the UE and is based on first network framework development CS business or the UE based on second The network architecture carries out CS business.

In conjunction with the first implementation of the second aspect of the embodiment of the present invention, in the second aspect of the embodiment of the present invention In second of implementation, the first network framework is CSFB framework；Second network architecture is SRVCC Based frame Structure.

The first in conjunction with the second aspect of the embodiment of the present invention, the second aspect of the embodiment of the present invention is realized to second Any one in mode, in the third implementation of the second aspect of the embodiment of the present invention, in the MME by the UE It is attached to after EPC, the MME is also wrapped before sending SGs location update request message to visited place circuit domain core network element It includes:

The MME judges whether the UE meets preset circuit domain switching condition, if so, executing the MME to visiing It visits ground circuit domain core network element and sends SGs location update request message.

In conjunction with the third implementation of the second aspect of the embodiment of the present invention, in the second aspect of the embodiment of the present invention In 4th kind of implementation, the MME judges whether the UE meets preset circuit domain switching condition and include:

MME judges whether to receive the permission switching command that the visited place circuit domain core network element is sent, if so, The MME confirmation meets preset circuit domain switching condition.

The third aspect of the embodiment of the present invention provides a kind of visited place circuit domain core network element, comprising:

Receiving unit, for receiving the position SGs that the MME is sent when UE sends joint Attach Request message to MME Request message is updated, the SGs location update request message is sent after the UE is attached to EPC by the MME；

The domain CS adhesion unit, for the UE to be attached to the domain CS；

Generation unit, for generating instruction information, the instruction information is used to indicate answers when the UE carries out CS business The mode used；

Transmission unit, for responding the SGs location updating received message comprising the instruction information to the MME, so that It obtains the MME and the UE development CS business is controlled according to the instruction information.

In conjunction with the third aspect of the embodiment of the present invention, in the first implementation of the third aspect of the embodiment of the present invention In, the instruction information is used to indicate the UE and is based on first network framework development CS business or the UE based on the second network rack Structure carries out CS business；The first network framework is CSFB framework；Second network architecture is SRVCC Based framework；

The domain CS adhesion unit specifically includes:

Transmission sub-unit: request message is updated for sending to HLR/HSS；

Receiving subelement receives the update response message that the HLR/HSS is responded, and the update response includes number of users According to；

Then the generation unit specifically includes:

First generates subelement, for generating instruction information according to the user data.

In conjunction with the first implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In second of implementation, the user data includes user signing contract information；

Described first, which generates subelement, includes:

First judgment module, for judging whether the user signing contract information meets preset user's signing conditions；

First generation module, for generating first when the user signing contract information meets preset user's signing conditions Indicate that information, the first instruction information are used to indicate the UE and are based on CSFB framework development CS business；

Second generation module generates for when the user signing contract information is unsatisfactory for preset user's signing conditions Two instruction information, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

In conjunction with second of implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In the third implementation, the first judgment module includes:

First judging submodule, for judging whether the user signing contract information specifies the UE to carry out based on CSFB framework CS business；

First confirmation submodule carries out CS business for specifying the UE to be based on CSFB framework when the user signing contract information When, confirmation meets preset user's signing conditions.

In conjunction with the first implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 4th kind of implementation, the user data includes user identifier；

Described first, which generates subelement, includes:

Second judgment module, for judging whether the user identifier meets preset user identifier condition；

Third generation module, for when the user identifier meets preset user identifier condition, generating the first instruction Information, the first instruction information are used to indicate the UE and are based on CSFB framework development CS business；

4th generation module refers to for when the user identifier is unsatisfactory for preset user identifier condition, generating second Show that information, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

In conjunction with the 4th kind of implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 5th kind of implementation, the user identifier includes the mobile number of UE；

Second judgment module includes:

Second judgment submodule, for judge the UE mobile number number section whether in preset number section；

Second confirmation submodule, for when the number section of the mobile number of the UE is in preset number section, confirmation to meet default User identifier condition.

In conjunction with the first implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 6th kind of implementation, the user data includes user professional ability information；

Described first, which generates subelement, includes:

Third judgment module, for judging whether the user professional ability information meets preset user professional ability item Part；

5th generation module, for when the user professional ability information meets preset user professional ability condition, The first instruction information is generated, the first instruction information is used to indicate the UE and is based on CSFB framework development CS business；

6th generation module, for being unsatisfactory for preset user professional ability condition when the user professional ability information When, second indication information is generated, the second indication information is used to indicate the UE and is based on SRVCC Based framework development CS industry Business.

In conjunction with the 6th kind of implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 7th kind of implementation, the third judgment module includes:

Third judging submodule, for judging whether user professional ability information shows that the UE orders pre-set business；

Third confirms submodule, for when user professional ability information shows that the UE orders pre-set business, confirmation to be full The preset user professional ability condition of foot.

In conjunction with the third aspect of the embodiment of the present invention, in the 8th kind of implementation of the third aspect of the embodiment of the present invention In, the instruction information is used to indicate the UE and is based on first network framework development CS business or the UE based on the second network rack Structure carries out CS business；The first network framework is CSFB framework；Second network architecture is SRVCC Based framework；

The visited place circuit domain core network element further include:

Information is locally configured for obtaining in acquiring unit；

Then the generation unit specifically includes:

Second generates subelement, and information is locally configured for basis and generates instruction information.

In conjunction with the 8th kind of implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In 9th kind of implementation, the second generation subelement includes:

4th judgment module described is locally configured whether information meets preset configuration condition for judging；

7th generation module, for when it is described information be locally configured meet preset configuration condition when, generate the first instruction Information, the first instruction information are used to indicate the UE and are based on CSFB framework development CS business；

8th generation module, for when it is described information be locally configured be unsatisfactory for preset configuration condition when, generate second and refer to Show that information, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

In conjunction with the 9th kind of implementation of the third aspect of the embodiment of the present invention, in the third aspect of the embodiment of the present invention In tenth kind of implementation, the 4th judgment module includes:

4th judging submodule described is locally configured whether information shows the visited place circuit domain core net for judging Network element only supports the UE to carry out the mode of operation of CS business based on CSFB framework；

4th confirmation submodule, shows the visited place circuit domain core network element only for information to be locally configured described in When the UE being supported to carry out the mode of operation of CS business based on CSFB framework, confirmation meets preset configuration condition.

The fourth aspect of the embodiment of the present invention provides a kind of MME, comprising:

First receiving unit, for receiving the joint Attach Request message of UE transmission；

EPC adhesion unit, for the UE to be attached to EPC；

Transmission unit, for sending SGs location update request message to visited place circuit domain core network element；

Second receiving unit receives for receiving the SGs location updating that the visited place circuit domain core network element is responded Message；The SGs location updating received message carries instruction information, and the instruction information is used to indicate when the UE carries out CS industry The mode that should be used when business；The SGs location update request message is in the visited place circuit domain core network element by the UE It is sent after being attached to the domain CS.

Control unit, for controlling the UE according to the instruction information and carrying out CS business after UE joint is adhered to successfully.

In conjunction with the fourth aspect of the embodiment of the present invention, in the first implementation of the fourth aspect of the embodiment of the present invention In, the MME further include:

Judging unit, for after the UE is attached to EPC by the MME, the MME is to visited place circuit domain core Before network element sends SGs location update request message, judge whether the UE meets preset circuit domain switching condition；

Confirmation unit, for when the UE meets preset circuit domain switching condition, executing the MME to visited place electricity Road domain core net network element sends SGs location update request message.

In conjunction with the first implementation of the fourth aspect of the embodiment of the present invention, in the fourth aspect of the embodiment of the present invention In second of implementation, the judging unit includes:

Judgment module, for judging whether to receive, the visited place circuit domain core network element sent allows to switch and refer to It enables；

Confirmation module, for when receiving the permission switching command that the visited place circuit domain core network element is sent, Confirmation meets preset circuit domain switching condition.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, visited place circuit domain Core network element generates instruction information, which is used to indicate the mode that should be used when UE carries out CS business；And to MME The SGs location updating received message comprising the instruction information is responded, so that MME, which controls UE according to the instruction information, carries out CS industry Business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding connecing between MME and visited place circuit domain core network element Mouthful, the instruction information that MME is generated according to visited place circuit domain core network element reasonably selects UE using which kind of side Formula carries out CS business, to promote the flexible development of CS business.

Detailed description of the invention

Figure 1A is the schematic diagram of CSFB framework；

Figure 1B is the schematic diagram of SRVCC Based framework；

Fig. 1 C is the network architecture schematic diagram that the present invention applies；

Fig. 2 is the entity structure schematic diagram of visited place circuit domain core network element in the embodiment of the present invention；

Fig. 3 is implementation method one embodiment schematic diagram of CS business in LTE network in the embodiment of the present invention；

Fig. 4 is another embodiment of implementation method schematic diagram of CS business in LTE network in the embodiment of the present invention；

Fig. 5 is another embodiment of implementation method schematic diagram of CS business in LTE network in the embodiment of the present invention；

Fig. 6 is another embodiment of implementation method schematic diagram of CS business in LTE network in the embodiment of the present invention；

Fig. 7 is another embodiment of implementation method schematic diagram of CS business in LTE network in the embodiment of the present invention；

Fig. 8 is visited place circuit domain core network element one embodiment schematic diagram in LTE network in the embodiment of the present invention；

Fig. 9 is circuit domain core network element another embodiment schematic diagram in visited place in LTE network in the embodiment of the present invention；

Figure 10 is circuit domain core network element another embodiment schematic diagram in visited place in LTE network in the embodiment of the present invention；

Figure 11 is MME one embodiment schematic diagram in the embodiment of the present invention；

Figure 12 is another embodiment schematic diagram of MME in the embodiment of the present invention.

Specific embodiment

The embodiment of the invention provides the implementation methods and device of CS business in a kind of LTE network, for promoting CS business Flexible development, be described in detail separately below.

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts Example, shall fall within the protection scope of the present invention.

It should be noted that the embodiment of the present invention mainly describes the solution of CS business in LTE network, and depend on The cooperation of GERAN/UTRAN CS access, i.e. UE under LTE covering, which is switched in CS network when needing to handle CS business, to be completed Business processing is used as circuit domain core below with MSC (Mobile-services Switching Centre, mobile switching centre) The network architecture of the embodiment of the present invention is illustrated for heart network element, in joint attaching process, MME is that UE selects one MSC (i.e. VMSC), so that UE return back to the domain CS of 2G/3G.

C referring to Figure 1, the network architecture schematic diagram applied for the present invention, comprising: MME, VMSC, HLR/HSS and one Or a variety of UE, wherein UE is connect by E-UTRAN network with MME, and UE is connect by GERAN/UTRAN network with VMSC, and MME and VMSC are connect with HLR/HSS, specific:

The MME, for receiving the joint Attach Request message of UE transmission；UE is attached to by being interacted with HLR/HSS EPC；SGs location update request message is sent to VMSC；Receive the SGs location updating received message that VMSC is responded, the position SGs It updates received message and carries instruction information, which is used to indicate the mode that should be used when UE carries out CS business, the SGs Location update request message is sent after UE is attached to the domain CS by VMSC；After UE joint is adhered to successfully, according to the instruction information It controls UE and carries out CS business.

The VMSC, for receiving the SGs location update request message of MME transmission, which exists MME is sent after UE is attached to EPC；UE is attached to the domain CS by interacting with HLR/HSS；Generate the instruction information；It is returned to MME It should include the SGs location updating received message of the instruction information, so that MME, which controls UE according to the instruction information, carries out CS industry Business.

The HLR/HSS, for interacting with MME UE is attached to EPC；It is interacted with VMSC UE is attached to the domain CS.

The UE, the joint Attach Request message for being sent to MME；After UE joint is adhered to successfully, under the control of MME Carry out CS business.

For ease of understanding, below by taking a concrete application scene as an example, to the fortune of building block each in the network architecture shown in Fig. 1 It is described as process:

101, MME receives the joint Attach Request message that UE is sent；

The specific structure of joint Attach Request message does not repeat them here in the present embodiment see the prior art.

102, UE is attached to EPC by MME；

I.e. when MME receives the joint Attach Request message that UE is sent, UE is attached to EPC by MME.It should be noted that The UE detailed process for being attached to EPC is included: MME to HLR/HSS transmission update request message by MME, and MME receives HLR/HSS and returns The update response message answered, it is to be understood that the process that UE is attached to EPC can also wrap other than including above content Other processes are included, for example, authorizing procedure etc., specifically herein without limitation.

103, MME sends SGs location update request message to VMSC；

The specific structure of SGs location update request message does not repeat them here in the present embodiment see the prior art.

104, UE is attached to the domain CS by VMSC；

That is VMSC is attached to the domain CS after receiving SGs location update request message, by UE.It should be noted that VMSC It include: VMSC to HLR/HSS transmission update request message by the UE detailed process for being attached to the domain CS, VMSC receives HLR/HSS and returns The update response message answered, which includes user data.It is understood that UE to be attached to the process in the domain CS It can also include other processes other than including above content, for example, authorizing procedure etc., specifically herein without limitation.

105, VMSC generates instruction information；

It should be noted that the instruction information is used to indicate the mode that should be used when UE carries out CS business.In existing skill In the different application scene of art, different UE carries out mode used in CS business may be different, therefrom, it may be appreciated that, In the prior art, there are a variety of workable modes for carrying out CS business.

In the present embodiment, which can serve to indicate that UE is based on first network framework and carries out CS business or UE base Carry out CS business in second network architecture.Further, first network framework is CSFB framework, and second network architecture is SRVCC Based framework.It is understood that above-mentioned CSFB framework and SRVCC Based framework are only to work as UE to carry out CS business When workable mode two kinds of preferred embodiments, specifically herein without limitation.

It is understood that the realization process that VMSC generates instruction information can be different, it is illustrated separately below:

The first, VMSC generates instruction information according to user data；

That is VMSC generates instruction information using the user data obtained in step 104.Below to VMSC how according to user Data generate instruction information and are described in detail:

(1), when user data includes user signing contract information:

VMSC judges whether user signing contract information meets preset user's signing conditions,

If so, generating the first instruction information, which is used to indicate UE and is based on CSFB framework development CS industry Business；

If it is not, then generating second indication information, which is used to indicate UE and is opened based on SRVCC Based framework Open up CS business.

I.e. in the present embodiment, VMSC can indicate that UE is based on CSFB according to user's granularity according to user signing contract information Framework carries out CS business and is still based on SRVCC Based framework development CS business.

Specifically, above-mentioned VMSC judge whether user signing contract information meets preset user's signing conditions can be with are as follows:

VMSC judges that the whether specified UE of user signing contract information is based on CSFB framework and carries out CS business, if so, confirmation meets Preset user's signing conditions.

I.e. when user signing contract information, which specifies UE to be based on CSFB framework, carries out CS business, VMSC generation is used to indicate UE and is based on CSFB framework carries out the first instruction information of CS business, and otherwise VMSC generation is used to indicate UE and is opened based on SRVCC Based framework The second indication information for opening up CS business, so that the VMSC in the embodiment of the present invention can be according to user in user signing contract information The no UE that specifies based on CSFB framework carries out CS business to indicate that UE is based on CSFB framework to carry out CS business or based on SRVCC Based framework carries out CS business.For example, can be specified in user signing contract information when a certain user is of less demanding to time delay UE is based on CSFB framework and carries out CS business.

(2), when user data includes user identifier,

VMSC judges whether user identifier meets preset user identifier condition,

I.e. in the present embodiment, VMSC can indicate that UE is to carry out CS business also based on CSFB framework according to user identifier It is that CS business is carried out based on SRVCC Based framework.

Specifically, user identifier includes the mobile number of UE, then it is preset to judge whether user identifier meets by above-mentioned VMSC User identifier condition can be with are as follows:

VMSC judges the number section of the mobile number of UE whether in preset number section, if so, confirmation meets preset user's mark Knowledge condition.

For example, preset number section can be 134,135 and the 136 of China Mobile's number section, or it is also possible to China Unicom Number section: 130,131 and 132, i.e., when the number section of the mobile number of UE within the above range when, VMSC generation be used to indicate UE base Carry out the first instruction information of CS business in CSFB framework, otherwise VMSC generation is used to indicate UE and is based on SRVCC Based framework The second indication information for carrying out CS business, so that the VMSC in the embodiment of the present invention can be according to the number section of the mobile number of UE To indicate that UE is to carry out CS business based on CSFB framework or carry out CS business based on SRVCC Based framework.

(3), when user data includes user professional ability information:

VMSC judges whether user professional ability information meets preset user professional ability condition,

I.e. in the present embodiment, VMSC can indicate that UE is carried out based on CSFB framework according to user professional ability information CS business is still based on SRVCC Based framework and carries out CS business.

Specifically, above-mentioned VMSC judge whether user professional ability information meets preset user professional ability condition can be with Are as follows:

VMSC judge user professional ability information whether show UE order pre-set business, if so, confirmation meet it is preset User professional ability condition.

I.e. when user signing contract information shows that UE orders pre-set business, VMSC generation is used to indicate UE and is opened based on CSFB framework The first instruction information of CS business is opened up, otherwise VMSC, which is generated, is used to indicate UE based on SRVCC Based framework development CS business Second indication information, so that whether the VMSC in the embodiment of the present invention can show that UE is ordered according to user professional ability information Pre-set business come indicate UE be based on CSFB framework carry out CS business or based on SRVCC Based framework carry out CS business.

It is understood that user data can also include more being used for according to practical application scene and user demand Indicate the reference information that information generates, specifically herein without limitation.In some other application scenarios, if when UE carries out CS industry Workable mode further includes other modes when business, then VMSC is also corresponding indicates information accordingly, for example, when UE carries out CS business When workable mode further include that CS business is carried out based on the third network architecture, then VMSC generates third under corresponding preset condition Indicate that information, third instruction information are used to indicate UE and are based on third network architecture development CS business.

It should be noted that only illustrating how VMSC generates instruction information according to user data above with several examples Concrete mode, in practical applications, VMSC can be combined use to above-mentioned generating mode, can also be generated using other Mode, specific judgment mode is herein without limitation.

Two, VMSC generates instruction information according to information is locally configured；

That is VMSC is obtained information is locally configured after step 104；It may include showing whether VMSC props up that information, which is locally configured, The parameter that UE carries out the mode of operation of CS business based on some way is held, for example, the first parameter shows that VMSC supports UE to be based on CSFB framework carries out CS business (i.e. VMSC has CSFB ability), and the second parameter shows that VMSC supports UE to be based on SRVCC Based Framework carries out CS business (i.e. VMSC has SRVCC Based ability).To VMSC, how information generation is locally configured in basis below Instruction information is described in detail:

VMSC judgement is locally configured whether information meets preset configuration condition；

If it is not, generating second indication information, which is used to indicate UE and is carried out based on SRVCC Based framework CS business.

Specifically, above-mentioned VMSC judgement be locally configured information whether meet preset configuration condition can be with are as follows: VMSC judgement It is locally configured whether information shows that VMSC only supports UE to carry out the mode of operation of CS business based on CSFB framework, if so, confirmation Meet preset configuration condition.It is understood that preset configuration condition can also be set as other description sides according to demand Formula, this is not limited here.VMSC responds the SGs location updating received message comprising the instruction information to MME, so that MME controls the UE according to the instruction information and carries out CS business.

I.e. when information being locally configured meeting preset configuration condition, VMSC generation, which is used to indicate UE and is based on CSFB framework, is opened The first instruction information of CS business is opened up, otherwise VMSC, which is generated, is used to indicate UE based on SRVCC Based framework development CS business Second indication information, so that whether the VMSC in the embodiment of the present invention can show that VMSC is only supported according to information is locally configured UE carries out the mode of operation of CS business based on CSFB framework to indicate that UE is to carry out CS business based on CSFB framework or be based on SRVCC Based framework carries out CS business.

106, VMSC responds the SGs location updating received message comprising the instruction information to MME.

I.e. after VMSC generates instruction information according to user data, VMSC is by the instruction Information encapsulation to SGs location updating In received message, then to MME respond include the instruction information SGs location updating received message, with establish visited place VMSC with SGs association between MME.

107, MME controls UE development CS business according to the instruction information；

It should be noted that MME can be according to the finger in SGs location updating received message after UE joint is adhered to successfully Show that information control UE carries out CS business.It is specifically as follows: when the carrying first in SGs location updating received message indicates information When, MME is based on CSFB framework according to the first instruction information instruction UE and carries out CS business；When in SGs location updating received message Carrying second indication information when, MME according to the second indication information indicate UE be based on SRVCC Based framework carry out CS industry Business.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, VMSC generates instruction Information, the instruction information are used to indicate the mode that should be used when UE carries out CS business；And responding to MME includes the instruction information SGs location updating received message so that MME according to the instruction information control UE carry out CS business.Therefore relative to existing Technology, the embodiment of the present invention believe that MME according to the instruction that VMSC is generated by the interface expanded between MME and VMSC Reasonably which kind of mode selection UE uses carry out CS business to breath, to promote the flexible development of CS business.

The visited place circuit domain core network element in the embodiment of the present invention is described from the angle of hardware handles below, Referring to Fig. 2, for the entity structure schematic diagram of visited place circuit domain core network element in the embodiment of the present invention, comprising:

Input unit 201, output device 202, processor 203 and (the wherein visited place circuit domain core net net of memory 204 The quantity of processor 203 in member can be one or more, in Fig. 2 by taking a processor 203 as an example).Of the invention some In embodiment, input unit 201, output device 202, processor 203 and memory 204 can be by buses or other means even It connects, wherein in Fig. 2 for being connected by bus.

Wherein,

The operational order stored by calling memory 204, processor 203, for executing following steps:

When UE sends joint Attach Request message to MME, the SGs location update request message that the MME is sent is received, The SGs location update request message is sent after the UE is attached to EPC by the MME；

The UE is attached to the domain CS；

Instruction information is generated, the instruction information is used to indicate the mode that should be used when the UE carries out CS business；

To the MME respond comprising it is described instruction information SGs location updating received message so that the MME according to The instruction information controls the UE and carries out CS business.

In some embodiments of the invention, processor 203 is also used to execute following steps:

It is based on first network framework and carries out CS business or the UE being based on the when the instruction information is used to indicate the UE Two network architectures carry out CS business, and the first network framework is CSFB framework；Second network architecture is SRVCC When Based framework,

It is sent to HLR/HSS and updates request message；

The update response message that the HLR/HSS is responded is received, the update response includes user data；

Instruction information is generated according to the user data.

When user data includes user signing contract information；

Judge whether the user signing contract information meets preset user's signing conditions；

When the user signing contract information meets preset user's signing conditions, generation the first instruction information, described first Instruction information is used to indicate the UE and is based on CSFB framework development CS business；

When the user signing contract information is unsatisfactory for preset user's signing conditions, second indication information is generated, described the Two instruction information are used to indicate the UE and are based on SRVCC Based framework development CS business.

Judge whether the user signing contract information specifies the UE to be based on CSFB framework and carry out CS business；

When the user signing contract information, which specifies the UE to be based on CSFB framework, carries out CS business, confirmation meets preset use Family signing conditions.

When the user data includes user identifier,

Judge whether the user identifier meets preset user identifier condition；

When the user identifier meets preset user identifier condition, the first instruction information, first instruction are generated Information is used to indicate the UE and is based on CSFB framework development CS business；

When the user identifier is unsatisfactory for preset user identifier condition, second indication information is generated, described second refers to Show that information is used to indicate the UE and is based on SRVCC Based framework development CS business.

When the user identifier includes the mobile number of UE,

Judge the number section of the mobile number of the UE whether in preset number section；

When the number section of the mobile number of the UE is in preset number section, confirmation meets preset user identifier condition.

When the user data includes user professional ability information；

Judge whether the user professional ability information meets preset user professional ability condition；

When the user professional ability information meets preset user professional ability condition, the first instruction information is generated, The first instruction information is used to indicate the UE and is based on CSFB framework development CS business；

When the user professional ability information is unsatisfactory for preset user professional ability condition, the second instruction letter is generated Breath, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

Judge whether user professional ability information shows that the UE orders pre-set business；

When user professional ability information shows that the UE orders pre-set business, confirmation meets preset user professional ability Condition.

Information is locally configured in acquisition；

Instruction information is generated according to information is locally configured.

It is locally configured whether information meets preset configuration condition described in judgement；

When it is described information be locally configured meet preset configuration condition when, generate the first instruction information, first instruction Information is used to indicate the UE and is based on CSFB framework development CS business；

When it is described information be locally configured be unsatisfactory for preset configuration condition when, generate second indication information, described second refers to Show that information is used to indicate the UE and is based on SRVCC Based framework development CS business.

It is locally configured whether information shows that the visited place circuit domain core network element only supports the UE base described in judgement Carry out the mode of operation of CS business in CSFB framework；

When the information that is locally configured shows that the visited place circuit domain core network element only supports the UE to be based on CSFB When framework carries out the mode of operation of CS business, confirmation meets preset configuration condition.

Referring to Fig. 3, implementation method one embodiment of CS business includes: in LTE network in the embodiment of the present invention

301, visited place circuit domain core network element receives the SGs location update request message that MME is sent；

It should be noted that SGs location update request message is sent after UE is attached to EPC by MME.I.e. when UE is to MME When sending joint Attach Request message, MME first by UE be attached to EPC (Evolved Packet Core network, it is evolved Packet-based core networks), then SGs location update request message is sent to visited place circuit domain core network element.Joint attach request disappears Breath and the specific structure of SGs location update request message do not repeat them here in the present embodiment see the prior art.

302, UE is attached to the domain CS by visited place circuit domain core network element；

That is visited place circuit domain core network element is attached to the domain CS after receiving SGs location update request message, by UE.

303, visited place circuit domain core network element generates instruction information；

304, visited place circuit domain core network element responds the SGs location updating receiving comprising the instruction information to MME and disappears Breath.

I.e. after visited place circuit domain core network element generates instruction information, visited place circuit domain core network element refers to this Show that Information encapsulation receives into SGs location updating received message, then to MME response comprising the SGs location updating of the instruction information Message is associated with the SGs established between visited place circuit domain core network element and MME.It should be noted that when UE joint attachment After success, MME can control UE according to the instruction information in SGs location updating received message and carry out CS business.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, visited place circuit domain Core network element generates instruction information, which is used to indicate the mode that should be used when UE carries out CS business；And to MME The SGs location updating received message comprising the instruction information is responded, so that MME, which controls UE according to the instruction information, carries out CS industry Business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding connecing between MME and visited place circuit domain core network element Mouthful, the instruction information that MME is generated according to visited place circuit domain core network element reasonably selects which kind of side UE uses Formula carries out CS business, to promote the flexible development of CS business.

It is understood that the realization process that visited place circuit domain core network element generates instruction information can be different, under Face is illustrated respectively:

The first, visited place circuit domain core network element generates instruction information according to user data；

Referring specifically to Fig. 4, another embodiment of implementation method of CS business includes: in LTE network in the embodiment of the present invention

It is illustrated for below using VMSC as visited place circuit domain core network element.

401, VMSC receives the SGs location update request message that MME is sent；

Step 301 in the detailed process of step 401 in the present embodiment embodiment shown in Figure 3, in this implementation It is not repeated them here in example.

402, VMSC is sent to HLR/HSS updates request message；

403, VMSC receives the update response message that HLR/HSS is responded；

It should be noted that step 402 and 403, for UE to be attached to the domain CS, which includes number of users According to.It is understood that the process that UE is attached to the domain CS can also include other processes, example other than including above content Such as, authorizing procedure etc., specifically herein without limitation.

404, VMSC generates instruction information according to user data；

It should be noted that the instruction information is used to indicate the mode that should be used when UE carries out CS business.In this implementation In example, which is used to indicate UE and is based on first network framework development CS business or UE based on second network architecture development CS Business.Further, first network framework is CSFB framework, and second network architecture is SRVCC Based framework.It is understood that , above-mentioned CSFB framework and SRVCC Based framework be only two kinds of the workable mode when UE carries out CS business preferably Mode, specifically herein without limitation.

In the present embodiment, VMSC generates instruction information using the user data obtained in step 403.Below such as to VMSC What, which generates instruction information according to user data, is described in detail:

(1), when user data includes user signing contract information:

(2), when user data includes user identifier,

VMSC judges whether user identifier meets preset user identifier condition,

(3), when user data includes user professional ability information:

405, VMSC responds the SGs location updating received message comprising the instruction information to MME.

I.e. after VMSC generates instruction information according to user data, VMSC is by the instruction Information encapsulation to SGs location updating In received message, then to MME respond include the instruction information SGs location updating received message, with establish visited place VMSC with SGs association between MME.It should be noted that MME can receive according to SGs location updating after the joint of UE is adhered to successfully Instruction information control UE in message carries out CS business；Specifically: when VMSC generates the first instruction information, MME according to this One instruction information instruction UE is based on CSFB framework and carries out CS business；When VMSC generate second indication information when, MME according to this second Indicate that information instruction UE is based on SRVCC Based framework and carries out CS business.

Further, in technical solution provided in an embodiment of the present invention, VMSC is utilized and UE is attached to during the domain CS The user data of acquisition generates instruction information, and MME is allowed to select certain class (such as China Mobile number according to preset control law The 134 of section) or some UE which kind of mode to carry out CS business using.

Second, visited place circuit domain core network element generates instruction information according to information is locally configured；

Referring specifically to Fig. 5, another embodiment of implementation method of CS business includes: in LTE network in the embodiment of the present invention

501, VMSC receives the SGs location update request message that MME is sent；

502, UE is attached to the domain CS by VMSC；

Step 301 in the detailed process embodiment shown in Figure 3 of step 501 to step 502 in the present embodiment To step 302, do not repeat them here in the present embodiment.

503, information is locally configured in VMSC acquisition；

In the present embodiment, it may include showing whether VMSC supports UE to be based on some way and carry out CS that information, which is locally configured, The parameter of the mode of operation of business, for example, the first parameter shows that VMSC supports UE to be based on CSFB framework and carry out CS business (i.e. VMSC Have CSFB ability), the second parameter shows that (i.e. VMSC has VMSC support UE based on SRVCC Based framework development CS business SRVCC Based ability).In the present embodiment, when UE carries out CS business, workable mode includes that UE is based on first network Framework carries out CS business or UE is based on second network architecture and carries out CS business.Further, first network framework is CSFB frame Structure, second network architecture are SRVCC Based framework.It is understood that above-mentioned CSFB framework and SRVCC Based framework are only For two kinds of preferred embodiments of the workable mode when UE carries out CS business, specifically herein without limitation.

504, VMSC judgement is locally configured whether information meets preset configuration condition, if so, 505 are thened follow the steps, if It is no, then follow the steps 506；

In the present embodiment, it includes: VMSC judgement that VMSC judgement, which is locally configured information whether to meet preset configuration condition, It is locally configured whether information shows that VMSC only supports UE to carry out the mode of operation of CS business based on CSFB framework, if so, confirmation Meet preset configuration condition.It is understood that preset configuration condition can also be set as other description sides according to demand Formula, this is not limited here.

505, the first instruction information is generated；

The first instruction information is used to indicate UE and is based on CSFB framework development CS business.

506, second indication information is generated；

The second indication information is used to indicate UE and is based on SRVCC Based framework development CS business.

507, VMSC responds the SGs location updating receiving comprising the first instruction information or second indication information to MME and disappears Breath.

I.e. in VMSC according to being locally configured after information generates instruction information, VMSC is by the instruction Information encapsulation to the position SGs It updates in received message, then responds the SGs location updating received message comprising the instruction information to MME, to establish visited place SGs between VMSC and MME is associated with.It should be noted that MME can be according to the position SGs more after the joint of UE is adhered to successfully Instruction information control UE in new received message carries out CS business；Specifically: when VMSC generates the first instruction information, MME root CSFB framework, which is based on, according to the first instruction information instruction UE carries out CS business；When VMSC generate second indication information when, MME according to The second indication information indicates that UE is based on SRVCC Based framework and carries out CS business.

Further, in technical solution provided in an embodiment of the present invention, information life is locally configured according to acquisition in VMSC At instruction information, MME is allowed to select UE carries out CS business using which kind of mode according to preset control law.

Fig. 3 to embodiment shown in fig. 5 is described from the angle of VMSC, below from the angle of MME to of the invention real Example is applied to be described in detail, referring specifically to Fig. 6, another reality of the implementation method of CS business in LTE network in the embodiment of the present invention Applying example includes:

601, MME receives the joint Attach Request message that UE is sent；

602, UE is attached to EPC by MME；

I.e. when MME receives the joint Attach Request message that UE is sent, UE is attached to EPC by MME.

603, MME sends SGs location update request message to visited place circuit domain core network element；

604, MME receives the SGs location updating received message that visited place circuit domain core network element is responded；

It should be noted that UE is attached to CS in visited place circuit domain core network element by SGs location updating received message It is sent behind domain.When i.e. when visited place, circuit domain core network element receives the joint Attach Request message of MME transmission, visited place electricity UE is first attached to the domain CS by road domain core net network element, then responds SGs location updating received message to MME.

In the present embodiment, SGs location updating received message carries instruction information, which is used to indicate when UE is opened The mode that should be used when opening up CS business.In the different application scene of the prior art, different UE, which is used, carries out CS business Mode may be different, therefrom, it may be appreciated that, in the prior art, there are a variety of workable modes for carrying out CS business.

605, MME controls UE development CS business according to the instruction information；

In the present embodiment, after UE joint is adhered to successfully, MME can be according to the finger in SGs location updating received message Show that information control UE carries out CS business.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, MME receives visited place The SGs location updating received message that circuit domain core network element is responded according to SGs location update request message, SGs location updating Received message carries instruction information, which is used to indicate the mode that should be used when UE carries out CS business, when UE combines After adhering to successfully, MME controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, the embodiment of the present invention By the interface expanded between MME and visited place circuit domain core network element, MME is received according to SGs location updating Instruction information in message reasonably selects UE carries out CS business using which kind of mode, to promote the flexible development of CS business.

Further judge whether UE meets preset circuit domain switching condition on the basis of embodiment shown in Fig. 6 below, Referring specifically to Fig. 7, another embodiment of implementation method of CS business includes: in LTE network in the embodiment of the present invention

701, MME receives the joint Attach Request message that UE is sent；

702, the UE is attached to EPC by MME；

703, MME judges whether UE meets preset circuit domain switching condition, if so, 705 are thened follow the steps, if it is not, then Step 704；

In the present embodiment, it includes: that MME judges whether to connect that MME, which judges whether UE meets preset circuit domain switching condition, The permission switching command of VMSC transmission is received, if so, MME confirmation meets preset circuit domain switching condition.In practical application field Jing Zhong, MME can send switching command to VMSC and ask for instructions after receiving the joint Attach Request message that UE is sent, when VMSC permits When being permitted to be switched to circuit domain, then responding to MME allows switching command.It is understood that being preset in some other embodiment Circuit domain switching condition can also be other describing modes, this is not limited here.

704, other processes are executed；

I.e. when MME judges that UE is unsatisfactory for preset circuit domain switching condition, other processes are executed.It is understood that holding Other processes of row can be end process, i.e. UE does not continue to carry out joint attachment flow, is also possible to execute other processing streams Journey, specifically herein without limitation.

705, MME sends SGs location update request message to VMSC；

706, MME receives the SGs location updating received message that visited place circuit domain core network element is responded；

It should be noted that SGs location updating received message is sent after UE is attached to the domain CS by VMSC.I.e. when VMSC connects When receiving the joint Attach Request message of MME transmission, UE is first attached to the domain CS by VMSC, then is responded SGs location updating to MME and connect By message.

In the present embodiment, SGs location updating received message carries instruction information, which is used to indicate when UE is opened The mode that should be used when opening up CS business.In the present embodiment, which is used to indicate UE and is carried out based on first network framework CS business or UE are based on second network architecture and carry out CS business.Further, first network framework is CSFB framework, the second net Network framework is SRVCC Based framework, it can is understood are as follows: the instruction information includes being used to indicate UE to carry out based on CSFB framework The first of CS business indicates information and is used to indicate the second indication information that UE carries out CS business based on SRVCC Based framework. It is understood that above-mentioned CSFB framework and SRVCC Based framework are only the workable mode when UE carries out CS business Two kinds of preferred embodiments, specifically herein without limitation.

707, MME controls UE development CS business according to the instruction information；

In the present embodiment, after UE joint is adhered to successfully, MME can be according to the finger in SGs location updating received message Show that information control UE carries out CS business.Specifically: when the carrying first in SGs location updating received message indicates information, MME CSFB framework, which is based on, according to the first instruction information instruction UE carries out CS business；Carrying in SGs location updating received message When second indication information, MME indicates that UE is based on SRVCC Based framework and carries out CS business according to the second indication information.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, MME receives VMSC root According to the SGs location updating received message that SGs location update request message is responded, SGs location updating received message carries instruction letter Breath, the instruction information are used to indicate the mode that should use when UE carries out CS business, after UE joint is adhered to successfully, MME according to The instruction information controls UE and carries out CS business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding MME's and VMSC Interface allows MME reasonably to select UE is opened using which kind of mode according to the instruction information in SGs location updating received message CS business is opened up, to promote the flexible development of CS business.

The implementation method of CS business in LTE network in the embodiment of the present invention is described above, below to the present invention Visited place circuit domain core network element in embodiment is described, referring to Fig. 8, visited place circuit domain in the embodiment of the present invention Core network element one embodiment includes:

Receiving unit 801, for receiving the SGs that the MME is sent when UE sends joint Attach Request message to MME Location update request message, the SGs location update request message are sent after the UE is attached to EPC by the MME；

The domain CS adhesion unit 802, for the UE to be attached to the domain CS；

Generation unit 803, for generating instruction information, the instruction information is used to indicate when the UE carries out CS business The mode that should be used；

Transmission unit 804, for responding the SGs location updating received message comprising the instruction information to the MME, with So that the MME, which controls the UE according to the instruction information, carries out CS business.

For ease of understanding, below by taking a concrete application scene as an example, to circuit domain core net net in visited place in the present embodiment The inner working process of member is described:

When UE sends joint Attach Request message to MME, receiving unit 801 receives the position SGs of the MME transmission more New request message, the SGs location update request message are sent after the UE is attached to EPC by the MME；The attachment of the domain CS is single The UE is attached to the domain CS by member 802；Generation unit 803 generates instruction information, and the instruction information is used to indicate as the UE The mode that should be used when carrying out CS business；Transmission unit 804 responds the position SGs comprising the instruction information more to the MME New received message, so that the MME, which controls the UE according to the instruction information, carries out CS business.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, visited place circuit domain The generation unit 803 of core network element generates instruction information, which is used to indicate should use when UE carries out CS business Mode；And the SGs location updating received message comprising the instruction information is responded to MME by transmission unit 804, so that MME controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding MME With the interface between the circuit domain core network element of visited place, MME is generated according to visited place circuit domain core network element Instruction information reasonably select UE carries out CS business using which kind of mode, to promote the flexible development of CS business.

It is understood that the generation unit of visited place circuit domain core network element can have different specific structures, It is illustrated separately below:

The first, generation unit is used to generate instruction information according to the user data.

Referring specifically to Fig. 9, circuit domain core network element another embodiment in visited place includes: in the embodiment of the present invention

Receiving unit 901, for receiving the SGs that the MME is sent when UE sends joint Attach Request message to MME Location update request message, the SGs location update request message are sent after the UE is attached to EPC by the MME；

The domain CS adhesion unit 902, for the UE to be attached to the domain CS；

Generation unit 903, for generating instruction information, the instruction information is used to indicate when the UE carries out CS business The mode that should be used；

Transmission unit 904, for responding the SGs location updating received message comprising the instruction information to the MME, with So that the MME, which controls the UE according to the instruction information, carries out CS business.

Further, in the embodiment of the present invention, the instruction information is used to indicate the UE and is opened based on first network framework It opens up CS business or the UE is based on second network architecture and carries out CS business；The first network framework is CSFB framework；Described Two network architectures are SRVCC Based framework；

The domain CS adhesion unit 902 specifically includes:

Transmission sub-unit 9021: request message is updated for sending to HLR/HSS；

Receiving subelement 9022 receives the update response message that the HLR/HSS is responded, and the update response includes user Data；

Then the generation unit 903 specifically includes:

First generates subelement 9031, for generating instruction information according to the user data.

Optionally, the user data includes user signing contract information, the first generation subelement 9031 in the embodiment of the present invention Include:

Optionally, first judgment module includes: in the embodiment of the present invention

Optionally, the user data includes user identifier；The first generation subelement 9031 includes: in the embodiment of the present invention

Optionally, the user identifier includes the mobile number of the UE；Second judgment module includes:

Optionally, the user data includes user professional ability information；First generates subelement in the embodiment of the present invention 9031 include:

Optionally, third judgment module includes:

In the present embodiment, visited place circuit domain core network element can be VMSC.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, visited place circuit domain The generation unit 903 of core network element generates instruction information, which is used to indicate should use when UE carries out CS business Mode；And the SGs location updating received message comprising the instruction information is responded to MME by transmission unit 904, so that MME controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding MME With the interface between the circuit domain core network element of visited place, MME is generated according to visited place circuit domain core network element Instruction information reasonably select UE carries out CS business using which kind of mode, to promote the flexible development of CS business.

Further, the life in technical solution provided in an embodiment of the present invention, in the circuit domain core network element of visited place Instruction information is generated using the user data that the domain CS adhesion unit 902 obtains at unit 903, allows MME according to preset Control law selects certain class (such as the 134 of China Mobile's number section) or some UE carry out CS business using which kind of mode.

Second, generation unit is used for basis and information generation instruction information is locally configured.

Referring specifically to Figure 10, circuit domain core network element another embodiment in visited place includes: in the embodiment of the present invention

Receiving unit 1001, for receiving the SGs that the MME is sent when UE sends joint Attach Request message to MME Location update request message, the SGs location update request message are sent after the UE is attached to EPC by the MME；

The domain CS adhesion unit 1002, for the UE to be attached to the domain CS；

Generation unit 1003, for generating instruction information, the instruction information is used to indicate when the UE carries out CS business When the mode that should use；

Transmission unit 1004, for responding the SGs location updating received message comprising the instruction information to the MME, So that the MME, which controls the UE according to the instruction information, carries out CS business.

The visited place circuit domain core network element further include:

Information is locally configured for obtaining in acquiring unit 1005；

Then the generation unit specifically includes:

Second generates subelement 10031, and information is locally configured for basis and generates instruction information.

Optionally, the second generation subelement 10031 includes: in the embodiment of the present invention

Preferably, the 4th judgment module includes:

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, visited place circuit domain The generation unit 1003 of core network element generates instruction information, which is used to indicate should use when UE carries out CS business Mode；And the SGs location updating received message comprising the instruction information is responded to MME by transmission unit 1004, so that MME controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, the embodiment of the present invention is by expanding MME With the interface between the circuit domain core network element of visited place, MME is generated according to visited place circuit domain core network element Instruction information reasonably select UE carries out CS business using which kind of mode, to promote the flexible development of CS business.

Further, in technical solution provided in an embodiment of the present invention, in the circuit domain core network element of visited place Two generation subelements 10031 generate according to the information that is locally configured that acquiring unit 1005 obtains and indicate information, allow MME root Which kind of mode to carry out CS business using according to preset control law selection UE.

Visited place circuit domain core network element in the embodiment of the present invention is described above, the present invention is implemented below MME in example is described, and please refers to Figure 11, MME one embodiment includes: in the embodiment of the present invention

First receiving unit 1101, for receiving the joint Attach Request message of UE transmission；

EPC adhesion unit 1102, for the UE to be attached to EPC；

Transmission unit 1103, for sending SGs location update request message to visited place circuit domain core network element；

Second receiving unit 1104, the SGs location updating responded for receiving the visited place circuit domain core network element Received message；The SGs location updating received message carries instruction information, and the instruction information is used to indicate when the UE carries out The mode that should be used when CS business；The SGs location update request message is in the visited place circuit domain core network element by institute It states after UE is attached to the domain CS and sends.

Control unit 1105, for after UE joint is adhered to successfully, the MME to control the UE according to the instruction information Carry out CS business.

For ease of understanding, below by taking a concrete application scene as an example, to the inner working process of the MME in the present embodiment into Row description:

First receiving unit 1101 receives the joint Attach Request message that UE is sent；EPC adhesion unit 1102 is by the UE It is attached to EPC；Transmission unit 1103 sends SGs location update request message to visited place circuit domain core network element；Second connects It receives unit 1104 and receives the SGs location updating received message that the visited place circuit domain core network element is responded；The position SGs It updates received message and carries instruction information, the instruction information is used to indicate the side that should be used when the UE carries out CS business Formula；The SGs location update request message is sent out after the UE is attached to the domain CS by the visited place circuit domain core network element It send；After UE joint is adhered to successfully, control unit 1105 controls the UE according to the instruction information and carries out CS business.

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, the second of MME is received Unit 1104 receives the SGs location updating received message that VMSC is responded according to SGs location update request message, SGs location updating Received message carries instruction information, which is used to indicate the mode that should be used when UE carries out CS business, when UE combines After adhering to successfully, control unit 1105 controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, this hair Bright embodiment believes that MME according to the instruction in SGs location updating received message by the interface of expansion MME and VMSC Reasonably which kind of mode selection UE uses carry out CS business to breath, to promote the flexible development of CS business.

It is further described on the basis of embodiment illustrated in fig. 11 below and can determine whether UE meets preset circuit domain and cut The specific structure for changing the MME of condition, referring specifically to Figure 12, another embodiment of MME includes: in the embodiment of the present invention

First receiving unit 1201, for receiving the joint Attach Request message of UE transmission；

EPC adhesion unit 1202, for the UE to be attached to EPC；

Transmission unit 1203, for sending SGs location update request message to visited place circuit domain core network element；

Second receiving unit 1204, the SGs location updating responded for receiving the visited place circuit domain core network element Received message；The SGs location updating received message carries instruction information, and the instruction information is used to indicate when the UE carries out The mode that should be used when CS business；The SGs location update request message is in the visited place circuit domain core network element by institute It states after UE is attached to the domain CS and sends.

Control unit 1205, for after UE joint is adhered to successfully, the MME to control the UE according to the instruction information Carry out CS business.

Further, in the embodiment of the present invention, the MME further include:

Judging unit 1206, for after the UE is attached to EPC by the MME, the MME is to visited place circuit domain Before core network element sends SGs location update request message, judge whether the UE meets preset circuit domain switching condition；

Confirmation unit 1207, for executing the MME to visit when the UE meets preset circuit domain switching condition Ground circuit domain core network element sends SGs location update request message.

Preferably, the judging unit 1206 includes:

In technical solution provided in an embodiment of the present invention, during UE is carried out joint attachment, the second of MME is received Unit 1204 receives the SGs location updating received message that VMSC is responded according to SGs location update request message, SGs location updating Received message carries instruction information, which is used to indicate the mode that should be used when UE carries out CS business, when UE combines After adhering to successfully, control unit 1205 controls UE according to the instruction information and carries out CS business.Therefore compared with the existing technology, this hair Bright embodiment believes that MME according to the instruction in SGs location updating received message by the interface of expansion MME and VMSC Reasonably which kind of mode selection UE uses carry out CS business to breath, to promote the flexible development of CS business.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed system, device and method can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey The medium of sequence code.

The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims

1. the implementation method of CS business in a kind of LTE network, which is characterized in that when UE sends joint Attach Request message to MME When, comprising:

Visited place circuit domain core network element receives the SGs location update request message that the MME is sent, and the position SGs is more New request message is sent after the UE is attached to EPC by the MME；

The visited place circuit domain core network element generates instruction information, and the instruction information is used to indicate when the UE carries out CS The mode that should be used when business；

The visited place circuit domain core network element is responded the SGs location updating comprising the instruction information to the MME and is received Message, so that the MME, which controls the UE according to the instruction information, carries out CS business.

2. the implementation method of CS business in LTE network as described in claim 1, which is characterized in that the instruction information is used for Indicate that the UE is based on first network framework and carries out CS business or the UE based on second network architecture development CS business.

3. the implementation method of CS business in LTE network as claimed in claim 2, which is characterized in that the first network framework For CSFB framework；Second network architecture is SRVCC Based framework.

4. the implementation method of CS business in LTE network as claimed in claim 3, which is characterized in that the visited place circuit domain The UE is attached to the domain CS by core network element

5. the implementation method of CS business in LTE network as claimed in claim 4, which is characterized in that the user data includes User signing contract information；

The visited place circuit domain core network element judges whether the user signing contract information meets preset user's signing conditions,

If so, generating the first instruction information, the first instruction information is used to indicate the UE and is based on CSFB framework development CS Business；

If it is not, then generating second indication information, the second indication information is used to indicate the UE and is based on SRVCC Based framework Carry out CS business.

6. the implementation method of CS business in LTE network as claimed in claim 5, which is characterized in that the visited place circuit domain Core network element judges whether the user signing contract information meets preset user's signing conditions and include:

The visited place circuit domain core network element judges whether the user signing contract information specifies the UE to be based on CSFB framework Carry out CS business, if so, confirmation meets preset user's signing conditions.

7. the implementation method of CS business in LTE network as claimed in claim 4, which is characterized in that the user data includes User identifier；

8. the implementation method of CS business in LTE network as claimed in claim 7, which is characterized in that the user identifier includes The mobile number of the UE；

Then the visited place circuit domain core network element judges whether the user identifier meets preset user identifier condition packet It includes:

The visited place circuit domain core network element judge the number section of the mobile number of the UE whether in preset number section, if so, Then confirmation meets preset user identifier condition.

9. the implementation method of CS business in LTE network as claimed in claim 4, which is characterized in that the user data includes User professional ability information；

The visited place circuit domain core network element judges whether the user professional ability information meets preset customer service Ability condition,

10. the implementation method of CS business in LTE network as claimed in claim 9, which is characterized in that

The visited place circuit domain core network element judges whether the user professional ability information meets preset customer service Ability condition includes:

The visited place circuit domain core network element judges whether user professional ability information shows that the UE orders pre-set business, If so, confirmation meets preset user professional ability condition.

11. the implementation method of CS business in LTE network as claimed in claim 3, which is characterized in that the method also includes:

12. the implementation method of CS business in LTE network as claimed in claim 11, which is characterized in that the visited place circuit Domain core net network element indicates that information includes: according to information generation is locally configured

13. the implementation method of CS business in LTE network as claimed in claim 12, which is characterized in that the visited place circuit Information is locally configured whether meets preset configuration condition described in the judgement of domain core net network element and includes:

It is locally configured whether information shows the visited place circuit domain core described in the visited place circuit domain core network element judgement Heart network element only supports the UE to carry out the mode of operation of CS business based on CSFB framework, if so, confirmation meets preset match Set condition.

14. the implementation method of CS business in a kind of LTE network characterized by comprising

MME receives the joint Attach Request message that UE is sent；

The UE is attached to EPC by the MME；

The MME receives the SGs location updating received message that the visited place circuit domain core network element is responded；It is SGs described It sets and updates received message carrying instruction information, the instruction information is used to indicate the side that should be used when the UE carries out CS business Formula；The SGs location updating received message is sent out after the UE is attached to the domain CS by the visited place circuit domain core network element It send；

15. the implementation method of CS business in LTE network as claimed in claim 14, which is characterized in that the instruction information is used First network framework, which is based on, in the instruction UE carries out CS business or the UE based on second network architecture development CS business.

16. the implementation method of CS business in LTE network as claimed in claim 15, which is characterized in that the first network frame Structure is CSFB framework；Second network architecture is SRVCC Based framework.

17. the implementation method of CS business in the LTE network as described in any one of claim 14 to 16, which is characterized in that After the UE is attached to EPC by the MME, the MME sends SGs location updating to visited place circuit domain core network element Before request message further include:

The MME judges whether the UE meets preset circuit domain switching condition, if so, executing the MME to visited place Circuit domain core network element sends SGs location update request message.

18. the implementation method of CS business in LTE network as claimed in claim 17, which is characterized in that described in the MME judgement Whether UE meets preset circuit domain switching condition

MME judges whether to receive the permission switching command that the visited place circuit domain core network element is sent, if so, described MME confirmation meets preset circuit domain switching condition.

19. a kind of visited place circuit domain core network element characterized by comprising

Receiving unit, for receiving the SGs location updating that the MME is sent when UE sends joint Attach Request message to MME Request message, the SGs location update request message are sent after the UE is attached to EPC by the MME；

The domain CS adhesion unit, for the UE to be attached to the domain CS；

Generation unit, for generating instruction information, the instruction information is used to indicate should use when the UE carries out CS business Mode；

Transmission unit, for responding the SGs location updating received message comprising the instruction information to the MME, so that institute It states MME and the UE development CS business is controlled according to the instruction information.

20. visited place circuit domain core network element as claimed in claim 19, it is characterised in that: the instruction information is for referring to Show that the UE is based on first network framework and carries out CS business or the UE based on second network architecture development CS business；Described first The network architecture is CSFB framework；Second network architecture is SRVCC Based framework；

The domain CS adhesion unit specifically includes:

Transmission sub-unit: request message is updated for sending to HLR/HSS；

Receiving subelement receives the update response message that the HLR/HSS is responded, and the update response includes user data；

Then the generation unit specifically includes:

21. visited place circuit domain core network element as claimed in claim 20, it is characterised in that: the user data includes using Family signing information；

Described first, which generates subelement, includes:

First generation module, for when the user signing contract information meets preset user's signing conditions, generating the first instruction Information, the first instruction information are used to indicate the UE and are based on CSFB framework development CS business；

Second generation module refers to for when the user signing contract information is unsatisfactory for preset user's signing conditions, generating second Show that information, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

22. visited place circuit domain core network element as claimed in claim 21, it is characterised in that: the first judgment module packet It includes:

First judging submodule carries out CS industry for judging whether the user signing contract information specifies the UE to be based on CSFB framework Business；

First confirmation submodule, for when the user signing contract information specify the UE be based on CSFB framework carry out CS business when, Confirmation meets preset user's signing conditions.

23. visited place circuit domain core network element as claimed in claim 20, it is characterised in that: the user data includes using Family mark；

Described first, which generates subelement, includes:

Third generation module, for when the user identifier meets preset user identifier condition, generating the first instruction information, The first instruction information is used to indicate the UE and is based on CSFB framework development CS business；

4th generation module, for when the user identifier is unsatisfactory for preset user identifier condition, generating the second instruction letter Breath, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

24. visited place circuit domain core network element as claimed in claim 23, it is characterised in that: the user identifier includes UE Mobile number；

Second judgment module includes:

Second confirmation submodule, for when the number section of the mobile number of the UE is in preset number section, confirmation to meet preset use Family identification condition.

25. visited place circuit domain core network element as claimed in claim 20, it is characterised in that: the user data includes using Family professional ability information；

Described first, which generates subelement, includes:

Third judgment module, for judging whether the user professional ability information meets preset user professional ability condition；

5th generation module, for generating when the user professional ability information meets preset user professional ability condition First instruction information, the first instruction information are used to indicate the UE and are based on CSFB framework development CS business；

6th generation module, for giving birth to when the user professional ability information is unsatisfactory for preset user professional ability condition At second indication information, the second indication information is used to indicate the UE and is based on SRVCC Based framework development CS business.

26. visited place circuit domain core network element as claimed in claim 25, it is characterised in that: the third judgment module packet It includes:

Third confirms submodule, for when user professional ability information shows that the UE orders pre-set business, confirmation to meet pre- If user professional ability condition.

27. visited place circuit domain core network element as claimed in claim 19, it is characterised in that: the instruction information is for referring to Show that the UE is based on first network framework and carries out CS business or the UE based on second network architecture development CS business；Described first The network architecture is CSFB framework；Second network architecture is SRVCC Based framework；

The visited place circuit domain core network element further include:

Information is locally configured for obtaining in acquiring unit；

Then the generation unit specifically includes:

28. visited place circuit domain core network element as claimed in claim 27, it is characterised in that: described second generates subelement Include:

7th generation module, for when it is described information be locally configured meet preset configuration condition when, generate the first instruction information, The first instruction information is used to indicate the UE and is based on CSFB framework development CS business；

8th generation module, for when it is described information be locally configured be unsatisfactory for preset configuration condition when, generate the second instruction letter Breath, the second indication information are used to indicate the UE and are based on SRVCC Based framework development CS business.

29. visited place circuit domain core network element as claimed in claim 28, it is characterised in that: the 4th judgment module packet It includes:

4th judging submodule described is locally configured whether information shows the visited place circuit domain core network element for judging The UE is only supported to carry out the mode of operation of CS business based on CSFB framework；

4th confirmation submodule, shows that the visited place circuit domain core network element is only supported for information to be locally configured described in When the UE carries out the mode of operation of CS business based on CSFB framework, confirmation meets preset configuration condition.

30. a kind of MME characterized by comprising

EPC adhesion unit, for the UE to be attached to EPC；

Second receiving unit, the SGs location updating received message responded for receiving the visited place circuit domain core network element； The SGs location updating received message carries instruction information, and the instruction information is used to indicate when the UE carries out CS business The mode that should be used；The SGs location updating received message adheres to the UE in the visited place circuit domain core network element It is sent after to the domain CS；

31. MME as claimed in claim 30, which is characterized in that the MME further include:

Judging unit, for after the UE is attached to EPC by the MME, the MME is to visited place circuit domain core net net Before member sends SGs location update request message, judge whether the UE meets preset circuit domain switching condition；

Confirmation unit, for executing the MME to visited place circuit domain when the UE meets preset circuit domain switching condition Core network element sends SGs location update request message.

32. MME as claimed in claim 31, which is characterized in that the judging unit includes:

Judgment module, the permission switching command sent for judging whether to receive the visited place circuit domain core network element；

Confirmation module, for confirming when receiving the permission switching command that the visited place circuit domain core network element is sent Meet preset circuit domain switching condition.