CN104244215B - The network attached method and MME of mobile terminal - Google Patents
The network attached method and MME of mobile terminal Download PDFInfo
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- CN104244215B CN104244215B CN201410509356.8A CN201410509356A CN104244215B CN 104244215 B CN104244215 B CN 104244215B CN 201410509356 A CN201410509356 A CN 201410509356A CN 104244215 B CN104244215 B CN 104244215B
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Abstract
The invention provides a kind of network attached method of mobile terminal and MME, MME judges whether mobile terminal is switched to first base station from the origination base station in LTE network and is adhered to, when judging to be switched to first base station, second base station of all 2G/3G networks in its coverage of acquisition first base station, MME chooses one from the second all base stations and is used as target BS, if during MSC that target BS is subordinate to non-last moment during MSC selected in 2G/3G networks, mobile terminal is attached in target BS by MME.The present invention is when the LTE network base station accompanying by mobile terminal changes, mobile terminal can be switched under the 2G/3G network base stations in above-mentioned LTE network base station range by MME from the 2G/3G network base stations currently adhered to, so as to when mobile terminal needs to carry out CS domain droppings, can successfully fall back under the 2G/3G network base stations after switching.
Description
Technical field
The present embodiments relate to the network attached method and MME of communication technical field, more particularly to a kind of mobile terminal.
Background technology
Long Term Evolution (Long Term Evolution, abbreviation LTE) is the leading general shifting of the 3rd generation partner program
The Long Term Evolution of dynamic art communication systems.LTE network, which is one, to be had high-speed, low time delay, supports a variety of access technologies, is based on
The mobile communications network of full packetizing.At the initial stage of deployment of LTE network, LTE network is mainly used in providing the terminal with wideband data
Business, when terminal needs to carry out speech business, terminal needs to fall back to the second generation/third generation (Second Generation/
3rd-generation, abbreviation 2G/3G) in network, thus circuit domain dropping (Circuit Switched Fallback, referred to as
CSFB) arise at the historic moment, it is a kind of transitional voice solution of most operator's selections.
Packet switch (Packet Switched, abbreviation PS) is performed in the lte networks when the terminal under LTE standards is resident
Business, when having the initiation of initiation circuit switching (Circuit Switched, abbreviation CS) service request, the terminal under LTE standards will
Fall back to processing CS business in 2G/3G networks.At present because the terminal under LTE standards can be by combined registering mode by terminal
CS domains be attached in 2G/3G networks, once terminal receive or initiate CS business when, can directly fall back in combined registering mistake
In the 2G/3G networks registered in journey, the CS domains business of terminal is completed by 2G/3G networks.
But when the terminal under LTE standards is in mobile status, it is possible that the position for the terminal that can not upgrade in time
The phenomenon of information data, when terminal attempts to fall back in 2G/3G networks, due to the change in location of terminal, the terminal may not
In last moment registration process in the coverage of accompanying 2G/3G networks, such terminal can not just be fallen after rise.
The content of the invention
The present invention provides a kind of network attached method and MME of mobile terminal, for solving the terminal under existing LTE standards
During in mobile status, when request is beamed back in the base station into 2G/3G networks, due to MSC of the base station not in last moment
Ownership in the range of, MME can not upgrade in time to user data, cause fall after rise fail, increase calling establishment time delay the problem of.
To achieve these goals, the network attached method of a kind of mobile terminal provided by the invention, including：
Mobile management entity MME judges whether mobile terminal is switched to first base station from the origination base station in LTE network and enters
Row attachment；
If a determination be made that the MME obtains all second generation/third generations in described its coverage of first base station
Second base station of 2G/3G networks；
The MME chooses second base station as target BS from the second all base stations；
The MME judges whether the moving exchanging center MSC that the target BS is subordinate to is one on the mobile terminal
MSC selected in 2G/3G networks during the moment；
If it is judged that it is no, the mobile terminal is attached in the target BS by the MME.
In order to realize above-mentioned target, a kind of MME provided by the invention, including：
First judge module, for judging whether mobile terminal from the origination base station in LTE network is switched to first base station
Adhered to；
Acquisition module, for when the judged result of first judge module is is, obtaining the first base station, it to cover
Second base station of all second generations/third generation 2G/3G networks in the range of lid；
Module is chosen, for choosing second base station from the second all base stations as target BS；
Second judge module, for judging whether the moving exchanging center MSC that the target BS is subordinate to is the shifting
MSC selected in 2G/3G networks during dynamic terminal last moment；
Attachable module, for being no in the judged result of second judge module, the mobile terminal is attached to institute
State in target BS.
Whether the network attached method and MME, MME of mobile terminal provided by the invention judge mobile terminal from LTE network
Middle origination base station is switched to first base station and adhered to, after switching is judged, the institute in its coverage of acquisition first base station
There is the second base station of 2G/3G networks, MME chooses one from the second all base stations and is used as target BS, if target BS
During the MSC immobile terminal last moments being subordinate to during MSC selected in 2G/3G networks, mobile terminal is attached to by MME
In target BS.The present invention is in the moving process that mobile terminal moves, when the LTE network base station accompanying by mobile terminal becomes
During change, mobile terminal can be switched to above-mentioned LTE network base station range by MME from the 2G/3G network base stations currently adhered to
Under interior 2G/3G network base stations, although the position of so mobile terminal changes, when mobile terminal needs to carry out CS domains go back to
When falling, mobile terminal can successfully fall back to and carry out business continuing under the 2G/3G network base stations after switching.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the network attached method for mobile terminal that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of the network attached method for mobile terminal that the embodiment of the present invention two provides；
Fig. 3 is a kind of structural representation for MME that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural representation for attachable module that the embodiment of the present invention three provides.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.
Embodiment one
Fig. 1 is a kind of flow chart of the network attached method for mobile terminal that the embodiment of the present invention one provides.Such as Fig. 1 institutes
Show, the network attached method of the mobile terminal comprises the following steps：
101st, mobile management entity MME judges whether mobile terminal from the origination base station in LTE network is switched to the first base
Station is adhered to.
In the present embodiment, mobile terminal is the LTE terminal for possessing CSFB functions, when start is adhered to, mobile terminal
In the initial base station that CS domains can be attached under 2G/3G networks by way of combined registering, ps domain is attached to LTE
In an initial base station under network.
When mobile terminal is in mobile status, the position of mobile terminal can be constantly occurring change, appended when being moved to
During the edge of the initial base station under the LTE network, mobile terminal may will re-start measurement, from LTE network under select
A suitable base station carries out data transmission.Correspondingly, in the moving process of mobile terminal, mobile terminal may need constantly
Choose base station again from LTE network and adhered in ground.
After mobile terminal is switched to another LTE network base station from the base station of a LTE network, mobile terminal can be to
Mobile management entity (Mobility Management Entity, abbreviation MME) sends identification information., will be another in the present embodiment
One LTE network base station is referred to as first base station.
MME judges whether mobile terminal is switched to first base station from the origination base station in LTE network and is adhered to.In practice
After mobile terminal performs handover to first base station, MME can receive the identification information of first base station transmission, the present embodiment
In, MME can be with by whether receive above-mentioned identification information to judge whether mobile terminal is switched to the first base from first base station
Stand.If it is judged that being yes, step 102 is performed；Otherwise step 103 is performed.
Wherein, the identification information that MME is received includes the mark of the first base station and is switched in the first base station
The mark of mobile terminal.
Alternatively, after the identification information of first base station transmission is received, MME can learn current time mobile terminal institute
Base station under corresponding LTE network is first base station.In practical application, the last moment mobile terminal institute can be stored in MME
The mark of base station under corresponding LTE network, such MME can learn whether first base station is the corresponding of last moment
Base station under LTE network.If it is judged that being no, illustrate that current time mobile terminal was not at accompanying by last moment
LTE network under base station coverage in, current time mobile terminal is attached under first base station, perform step 102；Such as
Fruit judged result is no, illustrates the base station that current time mobile terminal is still within the LTE network accompanying by last moment
In coverage, that is to say, that mobile terminal does not reselect the base station under the LTE network to be adhered to, performs step 103.
102nd, MME obtains the second base station of all 2G/3G networks in first base station its coverage.
Specifically, after being switched in the base station under judging the LTE network accompanying by mobile terminal, MME instructions first
The second all base stations in its coverage of base station search, for example, MME can be sent to first base station obtains request, this is obtained
Take request for acquisition request first base station coverage all second base stations, first base station receive obtain request after,
The second base station in its coverage will be scanned for, to obtain the second base station in its coverage.
Alternatively, all second base stations that can be previously stored with first base station in its coverage, now MME can be with
Each second base station in its coverage is directly got from first base station.
First base station carries out information exchange by channel of eating dishes without rice or wine with corresponding second base station, obtains the equipment letter of the second base station
Breath.Further, MME receives the facility information related to each second base station of first base station feedback.Wherein, facility information bag
Include the cell information of the device identification of the second base station, geographical location information and the second base station range.
103rd, MME judge the mobile terminal whether need again from 2G/3G networks choose base station adhered to.
Mobile terminal can be constantly to the base station under accompanying LTE network and the base under accompanying 2G/3G networks
Station is measured, and measurement result is reported into MME, so as to which MME can judge current accompanying base according to the result of measurement
Stand and whether meet the business need of mobile terminal.
When base station can not meet the business demand of mobile terminal under accompanying 2G/3G networks, then judge mobile whole
End needs are chosen base station again from 2G/3G networks and adhered to, and perform step 104；Otherwise step 109 is performed.
104th, MME obtains second base station of all 2G/3G networks in described its coverage of origination base station.
The second all base stations that MME instruction origination base stations are searched in its coverage, for example, MME can be to original base
Transmission of standing obtains request, and all second base stations for acquisition request origination base station coverage, origination base station are asked in the acquisition
After acquisition request is received, the second base station in its coverage will be scanned for, to obtain in its coverage
Second base station.Alternatively, all second base stations that can be previously stored with origination base station in its coverage, now MME can
Directly to get each second base station in its coverage from origination base station.
Correspondingly, origination base station carries out information exchange by channel of eating dishes without rice or wine with corresponding second base station, obtains the second base station
Facility information.Further, MME receives the facility information related to each second base station of origination base station feedback.Wherein, if
The cell information of standby device identification of the information including the second base station, geographical location information and the second base station range.
105th, MME chooses second base station as target BS from the second all base stations.
After the facility information of the second all base stations is received, MME can choose one from the second all base stations
The target BS that second base station is fallen after rise as mobile terminal.
When all second base stations are the base stations under the 2G/3G networks in first base station coverage, MME obtains the first base
The geographical location information stood, and according to the positional information of the first base station and the geographical location information of each second base station, from
The conduct target BS nearest apart from first base station is determined in all second base stations.
When all second base stations are the base stations under the 2G/3G networks in origination base station coverage, MME obtains original base
The geographical location information stood, and according to the positional information of the origination base station and the geographical location information of each second base station, from
The conduct target BS nearest apart from origination base station is determined in all second base stations.
106th, MME judges when whether the MSC that target BS is subordinate to is mobile terminal last moment the institute in 2G/3G networks
The MSC of selection.
After target BS is determined, MME can according to the mark of the mobile terminal obtain last moment when with the movement
Mobile switching centre (MobileSwitching Center, abbreviation selected in 2G/3G networks corresponding to terminal
MSC), and the MSC that target BS is subordinate to can be got according to the mark of target BS, then judges that target BS is subordinate to
MSC selected in 2G/3G networks when whether the MSC of category is mobile terminal last moment.If it is judged that it is no, explanation
Target BS corresponding to mobile terminal current time is not at MSC selected in 2G/3G networks during last moment covering
In the range of, perform step 107；If it is judged that being yes, illustrate accompanying by target BS corresponding to mobile terminal current time
MSC MSC selected in 2G/3G networks when being exactly last moment, perform step 108.
107th, mobile terminal is attached in target BS by MME.
Specifically, MME receives the attach request that mobile terminal is forwarded by first base station, and attach request is used to ask to adhere to
Into target BS.Further, when in step 101 MME judge that mobile terminal does not carry out base station and cut in the lte networks
Change, i.e., when mobile terminal is remained in the origination base station in LTE network, MME will receive mobile terminal and pass through original base
Stand forwarding attach request.
The attach request received is transmitted to the MSC that target BS is subordinate to by MME, to inquire that the MSC target BS is
No permission mobile terminal adheres to.After target BS allows mobile terminal to adhere to, MSC can feed back attachment response to MME.Connecing
After receiving attachment response, MME can send the data more new command of mobile terminal to MSC, so that MSC obtains mobile terminal more
New data, MME receive the data renewal response of the MSC feedbacks.The corresponding relation that MME is established between the MSC, so works as shifting
When dynamic terminal needs CS domain droppings, it is possible to fall back to and business continuing is carried out in target BS.
108th, MME is switched mobile terminal into target BS and adhered to.
It is selected in 2G/3G networks when the MSC for judging that target BS is subordinate to is last moment in the present embodiment
During MSC, MSC selected in 2G/3G networks during last moment is referred to as original MSC herein.MME is subordinate to target BS
Original MSC send handover request, adhered to inquiring whether the original MSC allows mobile terminal to be switched to target BS.
After allowing mobile terminal to adhere to, original MSC can feed back attachment response to MME.After attachment response is received, MME can be with
Mobile terminal is attached in target BS.By the MSC that target BS is now subordinate to is original MSC, MME is original with this
Corresponding relation between MSC can't change.
109th, flow is terminated.
Whether the network attached method of the mobile terminal provided in the present embodiment, MME judge mobile terminal from LTE network
Origination base station is switched to first base station and adhered to, all in its coverage of acquisition first base station after switching is judged
Second base station of 2G/3G networks, MME chooses one from the second all base stations and is used as target BS, if target BS institute
During the MSC immobile terminal last moments being subordinate to during MSC selected in 2G/3G networks, mobile terminal is attached to mesh by MME
Mark in base station.In the present embodiment in the moving process of mobile terminal, when the LTE network base station accompanying by mobile terminal becomes
After change, mobile terminal can be switched to above-mentioned LTE network base station range by MME from the 2G/3G network base stations currently adhered to
It is mobile when needing to carry out CS domain droppings when so being changed in the position of mobile terminal under interior 2G/3G network base stations
Terminal can successfully fall back to and carry out business continuing under the 2G/3G network base stations after switching.
Embodiment two
Fig. 2 is a kind of flow chart of the network attached method for mobile terminal that the embodiment of the present invention two provides.Such as Fig. 2 institutes
Show, the network attached method of the mobile terminal comprises the following steps：
201st, user equipment (UE) measures to the base station under LTE network, selects suitable base station to carry out data transmission.
Specifically, when under LTE network accompanying by causing during user equipment (User Equipment, abbreviation UE) is in mobile
Base station when can not meet UE business demand, UE can re-start measurement to the base station under LTE network, with LTE network
The middle suitable base station (eNodeB) of selection carries out data transmission.In the present embodiment, UE is the mobile terminal in above-described embodiment,
The suitable eNodeB selected in LTE network is the first base station in above-described embodiment one.
202nd, UE reports identification information to MME.
Wherein, identification information includes UE mark and the mark with the eNodeB corresponding to the UE.
203rd, MME obtains the facility information of the second base station of all 2G/3G networks in eNodeB coverages.
MME instructions eNodeB scans for the second base station of all 2G/3G networks in its coverage.Alternatively,
All second base stations in its coverage are stored in the enodeb, and such MME can directly be obtained from eNodeB and is stored in this
All second base stations in its coverage in eNodeB.
Further, eNodeB carries out information exchange by channel of eating dishes without rice or wine with corresponding second base station, obtains the second base station
Facility information.Wherein, facility information includes device identification, geographical location information and the second base station covering model of the second base station
The cell information enclosed.Further, MME receives the facility information related to each second base station of first base station feedback.
204th, MME chooses second base station as target BS from the second all base stations.
Detailed process can be found in the record of related content in above-described embodiment 1, and here is omitted.
205th, MME judges when whether the MSC that target BS is subordinate to is UE last moments selected in 2G/3G networks
MSC。
If it is judged that being no, step 206 is performed, if it is judged that being yes, performs step 211.Detailed process can
Referring to the record of related content in above-described embodiment 1, here is omitted.
206th, attach request is sent to the MSC that target BS is subordinate to by MME.
Wherein, the attach request is used to ask UE being attached in target BS.
MME receives the attach request that UE is forwarded by eNodeB, and the attach request is sent into target BS and is subordinate to
MSC, to ask whether UE being attached in target BS.
207th, MME receives the attachment sent when the MSC being subordinate to allows UE to be attached to target BS and responded.
After the MSC being subordinate to receives attach request, the attach request can be sent to target BS, in target BS
When allowing UE attachments, target BS can send attachment response to the MSC being subordinate to, and attachment response be transmitted to by the MSC
MME。
208th, MME sends UE data more new command to the MSC being subordinate to, so that the MSC being subordinate to obtains UE renewal
Data.
After attachment response is received, MME, which is learnt, allows UE to be attached in target BS, and such MME cans are to being subordinate to
The MSC of category sends UE data more new command.For the MSC being subordinate to after data more new command is received, the MSC can be from ownership
Location register (Home Location Register, abbreviation HLR) gets UE data message, carries out data renewal behaviour
Make.HLR can send data deletion action to MSC selected in 2G/3G networks during UE last moments simultaneously, and UE is carried out
Attachment removal.
209th, MME receives the data renewal response that the MSC that target BS is subordinate to is sent.
210th, the corresponding relation between the MSC that MME is established and target BS is subordinate to.
The corresponding relation that MME is established between the MSC, so when mobile terminal needs CS domain droppings, it is possible to fall after rise
Business continuing is carried out into target BS.
211st, MME sends handover request to original MSC.
Wherein, the handover request is switched mobile terminal into target BS for request.
It is selected in 2G/3G networks when the MSC for judging that target BS is subordinate to is last moment in the present embodiment
During MSC, MSC selected in 2G/3G networks during last moment is referred to as original MSC herein.
MME sends handover request to the original MSC that target BS is subordinate to, to inquire whether the original MSC allows to move
Terminal is switched to target BS and adhered to.
212nd, MME receives allows UE to be switched to the attachment response sent when target BS is adhered in original MSC.
When original MSC permission mobile terminals are switched to target BS and adhered to, original MSC can feed back attached to MME
Response.After attachment response is received, mobile terminal can be attached in target BS by MME.Due to target BS now
The MSC being subordinate to is original MSC, and the corresponding relation between MME and the original MSC can't change.
In the present embodiment, in UE moving process, after the LTE network base station accompanying by UE changes, MME can be with
2G/3G network base stations UE being switched to from the 2G/3G network base stations currently adhered in above-mentioned LTE network base station range
Under, so after UE position changes, when UE needs to carry out CS domain droppings, after UE can successfully fall back to switching
Business continuing is carried out under 2G/3G network base stations.
Embodiment three
Fig. 3 is a kind of structural representation for MME that the embodiment of the present invention three provides.As shown in figure 3, the MME includes：First
Judge module 31, acquisition module 32, choose module 33, the second judge module 34 and attachable module 35.
Wherein, the first judge module 31, for judging whether mobile terminal from the origination base station in LTE network is switched to
One base station is adhered to.
The acquisition module 32 being connected with the first judge module 31, it is yes for the judged result in the first judge module 31
When, obtain the second base station of all 2G/3G networks in the first base station its coverage.
The selection module 33 being connected with acquisition module 32, make for choosing second base station from the second all base stations
For target BS.
With choosing the second judge module 34 that is connected of module 33, for judging whether is MSC that the target BS is subordinate to
For the mobile terminal last moment when MSC selected in 2G/3G networks.
The attachable module 35 being connected with the second judge module 34, for being in the judged result of second judge module 34
It is no, the mobile terminal is attached in the target BS.
Attachable module 35, it is additionally operable to, when the judged result of the second judge module 34 is is, to target BS be subordinate to
Original MSC sends handover request, is adhered to inquiring whether the original MSC allows mobile terminal to be switched to target BS.
MSC selected in 2G/3G networks during last moment is referred to as original MSC herein.
Further, the acquisition module 32, the institute searched for specifically for indicating the first base station in its coverage
There is second base station, receive the facility information related to each second base station of the first base station feedback.Alternatively,
The acquisition module 32, specifically for each second base station in its coverage to prestore of the reception first base station transmission
Facility information.
Wherein, the facility information includes device identification, geographical location information and the covering of the second base station of the second base station
The cell information of scope.
Further, the selection module 33, specifically for the geographical location information according to the first base station and each
The geographical location information of second base station, target described in the conduct nearest apart from the first base station is determined from all second base stations
Base station.
Fig. 4 is a kind of structural representation for attachable module that the embodiment of the present invention three provides.As shown in figure 4, the attachment
Module 35 specifically includes：Receiving unit 351, transmitting element 352 and establish unit 353.
Wherein, receiving unit 351, receive the attach request that the mobile terminal is sent, and the attach request is used to ask
The mobile terminal is attached in the target BS, and received described in the MSC permissions being subordinate to described in target BS
Mobile terminal accesses the attachment response sent during the target BS, and gets the movement in the be subordinate to MSC
The data renewal response fed back after the updating the data of terminal.
The transmitting element 352 being connected with receiving unit 351, for the attach request to be sent into the be subordinate to MSC,
And send the movement eventually to the be subordinate to MSC after the attachment response of the be subordinate to MSC transmissions is received
The data at end more new command, so that the be subordinate to MSC obtains updating the data for the mobile terminal.
With the establishment of connection unit 353 of receiving unit 351, for establish it is corresponding between the be subordinate to MSC pass
System.
Further, when the second judge module 34 judges that the MSC that target BS is subordinate to is mobile terminal last moment
When MSC selected in 2G/3G networks when, herein by MSC selected in 2G/3G networks during mobile terminal last moment
Referred to as original MSC, transmitting element 352 are used to send handover request to original MSC, and request switches mobile terminal into target BS
In adhered to, after switching is allowed, receiving unit 351 will receive target BS feedback attachment response.It is attached receiving
After response, establish unit 353 and switch mobile terminal into target BS and adhered to.
The device of the present embodiment can perform the technical scheme of embodiment of the method shown in Fig. 1 and 2, its realization principle and technology
Effect is similar, and here is omitted.
In the present embodiment, MME judge mobile terminal whether from LTE network origination base station be switched to first base station carry out it is attached
, after switching is judged, obtain the second base station of all 2G/3G networks in first base station its coverage, MME is from all
The second base station in choose one be used as target BS, if target BS be subordinate to MSC immobile terminal last moments when
In 2G/3G networks during selected MSC, mobile terminal is attached in target BS by MME.In mobile terminal in the present embodiment
In the moving process of shifting, after the LTE network base station accompanying by mobile terminal changes, MME can by mobile terminal from work as
The 2G/3G network base stations of preceding attachment are switched under the 2G/3G network base stations in above-mentioned LTE network base station range, are so existed
When the position of mobile terminal changes, when needing to carry out CS domain droppings, after mobile terminal successfully can fall back to switching
2G/3G network base stations under carry out business continuing.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (4)
- A kind of 1. network attached method of mobile terminal, it is characterised in that including：Mobile management entity MME judge mobile terminal whether from the origination base station in LTE network be switched to first base station carry out it is attached ；If a determination be made that the MME obtains all second generations/third generation 2G/3G in described its coverage of first base station Second base station of network；The MME chooses second base station as target BS from the second all base stations；The MME judges whether the moving exchanging center MSC that the target BS is subordinate to is the mobile terminal last moment When original MSC selected in 2G/3G networks；If it is judged that it is no, the mobile terminal is attached in the target BS by the MME；Wherein, it is described if it is judged that being yes, the MME obtains all 2G/3G nets in described its coverage of first base station Second base station of network, including：The MME indicates all second base stations that the first base station is searched in its coverage； The MME receives the facility information related to each second base station of the first base station feedback；Or the MME connects Receive the facility information of each second base station in its coverage to prestore that the first base station is sent；Wherein, the equipment letter Cease the cell information of the device identification for including the second base station, geographical location information and the second base station range；The MME chooses second base station as target BS from the second all base stations, including：The MME is according to institute The geographical location information of first base station and the geographical location information of each second base station are stated, distance is determined from all second base stations Target BS described in the nearest conduct of the first base station；It is described that the mobile terminal is attached in the target BS by the MME if it is judged that be no, including：The MME receives the attach request that the mobile terminal is sent and is sent to the attach request described be subordinate to MSC, the attach request are used to ask the mobile terminal being attached in the target BS；The MME receives the attachment for allowing the mobile terminal to be sent when accessing the target BS in the be subordinate to MSC Response；The MME sends the data more new command of the mobile terminal to the be subordinate to MSC, so that described be subordinate to MSC obtains updating the data for the mobile terminal；The MME receives the data renewal response of the be subordinate to MSC feedbacks, and establishes between the be subordinate to MSC Corresponding relation.
- 2. the network attached method of mobile terminal according to claim 1, it is characterised in that the MME is from all Before second base station is chosen in two base stations as target BS, in addition to：If it is judged that no, the MME judges whether the mobile terminal needs to choose base station from 2G/3G networks again and entered Row attachment；If it is judged that it is yes, the MME obtains described the of all 2G/3G networks in described its coverage of origination base station Two base stations.
- A kind of 3. mobile management entity MME, it is characterised in that including：First judge module, carried out for judging whether mobile terminal is switched to first base station from the origination base station in LTE network Attachment；Acquisition module, for when the judged result of first judge module is is, obtaining the first base station, it to cover model Enclose the second base station of interior all second generations/third generation 2G/3G networks；Module is chosen, for choosing second base station from the second all base stations as target BS；Second judge module, for judging whether the moving exchanging center MSC that the target BS is subordinate to is described mobile whole MSC selected in 2G/3G networks when holding last moment；Attachable module, for being no in the judged result of second judge module, the mobile terminal is attached to the mesh Mark in base station；Wherein, the acquisition module, all described second searched for specifically for indicating the first base station in its coverage Base station, receive the facility information related to each second base station of the first base station feedback；Or the acquisition mould Block, specifically for the facility information of each second base station in its coverage to prestore of the reception first base station transmission；Its In, the cell of device identification of the facility information including the second base station, geographical location information and the second base station range Information；The selection module, specifically for the geographical location information according to the first base station and the geographical position of each second base station Confidence is ceased, and target BS described in the conduct nearest apart from the first base station is determined from all second base stations；The attachable module, is specifically included：Receiving unit, the attach request that the mobile terminal is sent is received, the attach request is used for request will be described mobile whole End is attached in the target BS, and receive allows the mobile terminal to access the target in the be subordinate to MSC The attachment response sent during base station, and the data fed back after the MSC gets the updating the data of the mobile terminal are more New response；Transmitting element, for the attach request to be sent into the be subordinate to MSC, and it is described be subordinate to receiving The data more new command of the mobile terminal is sent after the attachment response that MSC is sent to the be subordinate to MSC, so that institute State be subordinate to MSC and obtain updating the data for the mobile terminal；Unit is established, for establishing the corresponding relation between the be subordinate to MSC.
- 4. MME according to claim 3, it is characterised in that first judge module, be additionally operable in the mobile terminal When not from LTE network, origination base station is switched to first base station and adhered to, judge the mobile terminal whether need again from Base station is chosen in 2G/3G networks to be adhered to；The acquisition module, it is additionally operable to obtain second base of all 2G/3G networks in the origination base station its coverage Stand.
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| CN201410509356.8A CN104244215B (en) | 2014-09-28 | 2014-09-28 | The network attached method and MME of mobile terminal |
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| CN201410509356.8A CN104244215B (en) | 2014-09-28 | 2014-09-28 | The network attached method and MME of mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101594605A (en) * | 2008-05-28 | 2009-12-02 | 华为技术有限公司 | Select method, the Apparatus and system of circuit domain service network |
| CN103974231A (en) * | 2014-05-21 | 2014-08-06 | 中国联合网络通信集团有限公司 | Position updating method and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100034168A1 (en) * | 2008-08-08 | 2010-02-11 | Kaniz Mahdi | System and Method for Enabling SR-VCC with Shared IMPU |
| KR20130094004A (en) * | 2012-02-15 | 2013-08-23 | 삼성전자주식회사 | Mobile communication system and method for processing paging message thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594605A (en) * | 2008-05-28 | 2009-12-02 | 华为技术有限公司 | Select method, the Apparatus and system of circuit domain service network |
| CN103974231A (en) * | 2014-05-21 | 2014-08-06 | 中国联合网络通信集团有限公司 | Position updating method and mobile terminal |
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