CN101594605A - Select method, the Apparatus and system of circuit domain service network - Google Patents
Select method, the Apparatus and system of circuit domain service network Download PDFInfo
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- CN101594605A CN101594605A CNA2008100676131A CN200810067613A CN101594605A CN 101594605 A CN101594605 A CN 101594605A CN A2008100676131 A CNA2008100676131 A CN A2008100676131A CN 200810067613 A CN200810067613 A CN 200810067613A CN 101594605 A CN101594605 A CN 101594605A
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Abstract
The embodiment of the invention discloses a kind of method of selecting the circuit domain service network, according to this method, can obtain the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district, the circuit domain service network that selection can be served sub-district, the current place of described subscriber equipment, thereby avoided residing in the subscriber equipment supported in the packet field network sub-district when receiving CS paging, the CS paging failure problem that causes because of the service of the circuit domain service network that can not get sub-district, current place correspondence with circuit domain rollback function.The invention also discloses the Apparatus and system of selecting the circuit domain service network.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the technology of selecting the circuit domain service network.
Background technology
Along with the continuous development of mobile network's technology and the maturation of IPization technology, SAE/LTE (SystemArchitecture Evolution/Long Term Evolution, System Architecture Evolution/Long Term Evolution), HSPA (High Speed Packet Access, the high-speed packet access), HSPA+ (High SpeedPacket Access Evolution, high-speed packet inserts evolution) and WiMAX (WorldwideInteroperability for Microwave Access, the micro-wave access global inter communication) network-covered of etc.ing arrive some areas.For convenience of description, these are provided the network in PS (Packet Switched, packet switching) territory be referred to as the network of supporting packet domain (PS).Network design for future, may there be network and GERAN (the Global System for Mobilecommunications/Enhanced Data rates for GSM Evolution Radio AccessNetwork that supports PS in a very long time, GSM EDGE Radio Access Network), UTRAN legacy networks such as (Universal MobileTelecommunication System Terrestrial Radio Access Network, UMTS Terrestrial radio access network networks) and depositing.
More present traditional CS (Circuit Switched, circuit switching) territory business, for example speech, short message service etc. remains user's business relatively more commonly used.In order to protect existing investment, make full use of Internet resources, operator wishes that the circuit domain that some employed circuit domain business of user that resides in the network cell of supporting PS is redirected to legacy network carries out.
In addition, because existing some packet network such as HSPA+ etc. do not support circuit domain business, therefore, in the prior art, when resident user equipment (UE) to support PS network cell is initiated CS paging, need to be redirected or to switch to circuit domain.When the access network entity in the network of supporting PS is received the CS paging request of UE initiation, will carry out redirection process, UE is switched to the sub-district of supporting circuit domain business in other networks.In addition, the network of support packet domain such as HSPA+ in the future may be supported circuit domain business, but is based on needs such as sharing flow, also may need to be redirected or to switch to the sub-district of supporting circuit domain business in other networks.
In order to make the UE that resides in the network cell of supporting PS can receive the call request in CS territory, and the communication of setting up the CS territory, it in the prior art mode that adopts combined registering, promptly when UE is registered to certain support PS network, the PS network entity is registered to UE on the MSC/VLR (Mobile SwitchingCenter/visitor location register, mobile switching centre/visitor location register) simultaneously.Arrive GMSC (the Gateway Mobile Switching Center of Home Network as CS paging, gateway MSC) time, GMSC is from HLR/HSS (Home Location Register/HomeSubscriber Server, attaching position register/home subscriber server) obtains the MSC/VLR address that UE registers in, thereby make GMSC knows so which MSC/VLR IAM (Initial Address Message, initial address message) is forwarded on.
Figure 1 shows that in the prior art that the UE combined registering is to the situation of MSC/VLR and MME (MobileManagement Entity, mobile management entity): in step 101, subscriber equipment sends to the MME of PS network and adheres to request; Step 102 is finished whole PS attaching process; In step 103, MME sends the request that co-location is upgraded by Gs interface to MSC/VLR; In step 104, MSC/VLR creates Gs alliance; In step 105, the position in MSC/VLR and HLR/HSS executive circuit territory is upgraded; In step 106, MSC/VLR sends the position renewal to MME and accepts message, and in the step 107, MME sends to adhere to UE and accepts message.By said method, UE is registered on the relevant MSC/VLR.
Reside in the prior art when UE that supports the PS network cell is in the sky present condition and receive that the flow process of CS territory paging is: when CS paging arrives GMSC, GMSC obtains the circuit domain positional information that UE registers from HLR/HSS, and sends IAM to this circuit domain MSC/VLR.MSC/VLR sends beep-page message by Gs interface to the PS territory.The PS network sends beep-page message to UE in Home Network.After base station eNB is received beep-page message, will trigger a PS switching or the gravity treatment of eNB assisted cell and make UE be repositioned onto legacy network, and send page-response message at legacy network.
Reside in the prior art and receive the flow process of CS territory paging when the UE that supports the PS network cell is in state of activation, the flow process difference of receiving the paging of CS territory with idle condition UE is, because UE has the PS business to carry out, so, when CS paging, can only initiate PS territory switching flow and UE is switched in the legacy network go.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: because current combined registering is only considered TA (Tracking Area for the UE place in the prior art, tracking area) only with the sub-district of a MSC/VLR administration with situation about covering, but eUTRAN TA scope and UTRAN RA/LA be (Routing Area/Location Area, Routing Area/band of position) scope does not have corresponding relation accurately, so may there be situation as shown in Figure 2: when UE initiates registration in TA, because the sub-district that TA covers together may belong to the compass of competency of two MSC/VLR, which MSC/VLR MME can't know the UE combined registering to; If UE is registered to MSC/VLR1 in register flow path, but UE moves in TA inside, and moves to the scope with covering with MSC/VLR2, so when UE is exhaled, because what GMSC obtained in HLR/HSS is the address of MSC/VLR1, GMSC will issue MSC/VLR1 to the IAM address.According to existing procedure, MSC/VLR1 will be by MME and eNB paging UE.After eNB receives information, UE is switched in the sub-district of MSC/VLR1 administration and go.Because this moment, UE was not in the sub-district of MSC/VLR1 administration, thus can't be with the UE successful switch to the MSC/VLR1 compass of competency, thus UE can not send response message to MSC/VLR1, causes the paging failure of CS territory to UE.
Summary of the invention
The embodiment of the invention provides a kind of method, Apparatus and system of selecting the circuit domain service network, make to reside in the subscriber equipment supported in the packet field network sub-district when receiving CS paging, can obtain the service of the circuit domain service network of sub-district, current place correspondence with circuit domain rollback function.
The embodiment of the invention discloses a kind of method of selecting the circuit domain service network, comprise: obtain the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district, select the circuit domain service network that to serve sub-district, the current place of described subscriber equipment.
The embodiment of the invention also provides a kind of device that is used for circuit domain business, comprising: acquiring unit: the support circuit domain cell information that obtains sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district; Selected cell: the circuit domain service network that selection can be served sub-district, the current place of described subscriber equipment.
The embodiment of the invention provides a kind of subscriber equipment of selecting the circuit domain service network, comprising: transmitting element is used for sending to network side the request message of the support circuit domain cell information carry sub-district, current place correspondence; Receiving element is used to receive the affirmation message to described request message that network side sends.
The embodiment of the invention provides a kind of system of selecting the circuit domain service network, comprising: subscriber equipment in the packet field network sub-district is used for sending to network side the support circuit domain cell information of sub-district, current place correspondence; Network side is used for receiving the support circuit domain cell information of sub-district, the current place of subscriber equipment, packet field network sub-district correspondence; And select the circuit domain service network to serve sub-district, the current place of described subscriber equipment.
By relatively finding that a technical scheme in the technique scheme compared with prior art has following advantage or beneficial effect:
In the embodiment of the invention, by obtaining the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district, the circuit domain service network that selection can be served sub-district, the current place of described subscriber equipment, avoided residing in the subscriber equipment supported in the packet field network sub-district when receiving CS paging, the CS paging failure problem that causes because of the service of the circuit domain service network that can not get sub-district, current place correspondence with circuit domain rollback function.
Description of drawings
Below with reference to accompanying drawings the present invention is made a more detailed description, in the accompanying drawing:
Fig. 1 be in the prior art UE combined registering to the schematic flow sheet of MSC/VLR and MME;
Fig. 2 is may the make a mistake schematic diagram of cell selecting of UE in the prior art;
Fig. 3 is a flow chart of selecting the method for circuit domain service network according to the embodiment of the invention;
Fig. 4 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 1;
Fig. 5 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 2;
Fig. 6 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 3;
Fig. 7 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 4;
Fig. 8 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 5;
Fig. 9 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 6;
Figure 10 is the method flow diagram according to the selection circuit domain service network of the embodiment of the invention 7;
Figure 11 is according to the mobile communcations system of the embodiment of the invention and installation drawing.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, various embodiments of the present invention are described in further detail below in conjunction with accompanying drawing.
The embodiment of the invention provides a kind of method of selecting the circuit domain service network, as shown in Figure 3:
In step 201, obtain the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district;
In step 202, select the circuit domain service network that to serve sub-district, the current place of described subscriber equipment.
The described support circuit domain cell information that obtains sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district is specially:
Receive the request of adhering to of carrying described support circuit domain cell information that transmit the base station; Perhaps, receive base station configuration or the message of the described support circuit domain cell information that obtains; Perhaps, receive the redirected/switching requirement of carrying described support circuit domain cell information that the base station sends; Perhaps, obtain the message of described support circuit domain cell information, will specifically set forth with embodiment below by local configuration information.
Described support circuit domain cell information is a position area information, or the tabulation of a plurality of position area information composition.
In the embodiment of the invention, by obtaining the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district, the circuit domain service network that selection can be served sub-district, the current place of described subscriber equipment, avoided residing in the subscriber equipment supported in the packet field network sub-district when receiving CS paging, the CS paging failure problem that causes because of the service of the circuit domain service network that can not get sub-district, current place correspondence with circuit domain rollback function.
According to above-mentioned solution, introduce the specific embodiment of supporting this solution below.
The embodiment of the invention 1 provides the method for selecting the circuit domain service network in a kind of register flow path, as shown in Figure 4, comprising:
Step 301, UE send to network side and adhere to request, and may carry the support circuit domain cell information of current position correspondence in this request, as the UTRAN/GERAN cell information.This cell information can be the sign of sub-district, or LAC information under the sub-district.
Step 302, base station eNB are transmitted the request of adhering to of UE to MME.If UE not adhere to the request carry the UTRAN/GERAN cell information of current position correspondence, eNB may report to MME with the current place of UE cell information by the S1 interface.
It is worthy of note if the current place of eNB report UE cell information, to obtain the method for the UTRAN/GERAN cell information of the current position of UE correspondence can be that eNB goes up configuration to eNB so, or UE carries (as RRC connection request/finish message) in RRC (Radio Resource Control, Radio Resource control) message.
Step 303, optional is finished authentication UE flow process.
Step 304, MME are selected MSC/VLR according to the UTRAN/GERAN cell information of the current position correspondence that obtains, and send the message that co-location is upgraded to MSC/VLR.
Step 305, the MSC/VLR MME address current according to UE send position updating request to HLR/HSS, the circuit domain position area information at the current place of HLR/HSS record UE.
Step 306, finish circuit domain and upgrade after, MSC/VLR sends the position to MME and upgrades response.
Step 307, MME send to UE and adhere to acceptance response message.
In the present embodiment, when a CS fallback enable (having circuit domain rollback function) UE before network sends registration message, at first search for and select two kinds of persistent districts.A kind of eUTRAN (evolved UTRAN, the UTRAN of evolution) sub-district, another kind is the UTRAN/GERAN sub-district.UE send to MME registration message the time, carry the UTRAN cell information of its current position correspondence, this cell information comprises the LAC under cell ID or this UTRAN/GERAN sub-district or the RNC sign of UTRAN sub-district, or eNB gives MME with the UTRAN/GERAN reporting district information of the current position of UE correspondence.Which MSC/VLR is the information that MME is entrained according to UE determine the UE combined registering to.Thereby guarantee that the MSC/VLR that UE registered can provide service for its circuit domain sub-district, current place, avoids the paging failure problem of circuit domain to subscriber equipment.
Carry out the register flow path that the position is upgraded when the embodiment of the invention 2 provides a kind of UE occurrence positions to change, as shown in Figure 5, comprising:
Step 401, UE send position updating request to eNB after shifting out the band of position of MSC/VLR administration at original place.
What need further specify is: change in order in time to find the UE band of position, may need regularly or irregularly to measure.
Step 402, different with embodiment 1 step 302, what this step eNB transmitted in the present embodiment is position updating request.
Step 403～404, when MME finds that according to the support circuit domain cell information of sub-district, current place correspondence the UE band of position changes, send position updating request to the new circuit domain service network MSC/VLR that can serve sub-district, the current place of described subscriber equipment, this process is identical with step 303～304 among the embodiment 1.
Step 405, the MSC/VLR MME address current according to UE send position updating request to HLR/HSS, and HLR/HSS upgrades the circuit domain position area information at the current place of UE
Step 406, finish circuit domain and upgrade after, MSC/VLR sends the position to MME and upgrades acceptance response message.
Step 407, MME send the position to UE and upgrade acceptance response message.
After this, when CS paging took place, GMSC will be by new MSC/VLR paging UE, and sets up the circuit domain connection.
Present embodiment is judged the UE change in location by regularly or irregularly measuring, and MSC/VLR under the subscriber equipment current location that upgrades in time, guarantee that the MSC/VLR that UE registered can provide service for its circuit domain sub-district, current place, avoided circuit domain that subscriber equipment causes because of the MSC/VLR compass of competency that shifts out former registration paging failure problem subscriber equipment.
Fig. 6 is the flow process of the selection circuit domain service network of the embodiment of the invention 3, when providing a kind of CS territory paging to reside in to support the PS network cell and be in the UE of state of activation, select the method for the MSC/VLR of service UE, wherein MSC/VLR1 represents the MSC/VLR of the former registration of UE, MSC/VLR2 represents the MSC/VLR of the new new region that is arrived behind the UE shift position, and concrete paging flow process comprises:
Step 501, CS paging arrive GMSC, and GMSC receives IAM.
Step 502, GMSC obtain the CS location information domain that UE registered by HLR/HSS.
Step 504, MSC/VLR1 send the CS beep-page message to MME.
Of particular note, MSC/VLR1 may also need (the Radio Network Controller with its RNC that administers in this step, radio network controller) ID list (list of identities) is notified to MME, so that MME is notified to eNB, make eNB know which sub-district is to belong to this MSC/VLR1 compass of competency.
Step 505, MME send the CS beep-page message to eNB.
After step 506a, CS beep-page message arrive eNB, eNB obtains and supports the circuit cell information, as the UTRAN cell information, select a current affiliated UMTS sub-district of UE to switch as Target cell, send redirected/switching requirement to MME, if eNB learns the UTRAN sub-district of position correspondence at the current place of UE not in the MSC/VLR1 compass of competency, and may be unreachable in the MSC/VLR1 compass of competency to MME report UE simultaneously.
It is worthy of note: the UTRAN sub-district that eNB can learn the position correspondence at the current place of UE according to the measurement report that UE sends, also can learn according to the UTRAN sub-district of eUTRAN sub-district correspondence that eNB goes up the UE place of configuration.And that eNB can be carried at the UTRAN cell information of the position correspondence at the current place of UE is redirected/and switch and send to MME in requiring.
Step 506b, MME send to SGSN and are redirected/handoff request.
Step 506, optionally is in execution in step 506b or afterwards, MME sends the message that the position is upgraded to the MSC/VLR2 of the current affiliated subdistrict of UE.
Step 506c, SGSN send to MME and are redirected/handover acknowledge.
Step 506d, MME send switching command to eNB.
Step 506e, eNB send switching command to UE.
Step 506f, UE send handoff response to RNC.
Step 506g, RNC send to be redirected to SGSN and finish message.
Step 506h, SGSN transmit to be redirected to MME and finish message.
Of particular note, step 506 also can be carried out after step 506e finishes, and can also carry out after step 506h finishes.
Step 507, MSC/VLR2 send position updating request to HLR/HSS.
Step 508, HLR/HSS send canceling position message according to the prior art flow process to MSC/VLR1.
Step 509, MSC/VLR1 stop paging, and send notice according to the prior art flow process to GMSC, and notice GMSC user equipment (UE) position changes.
Step 510, GMSC obtain the MSC/VLR2 address by HLR/HSS.
In the present embodiment, reside in the subscriber equipment of supporting in the packet field network sub-district with circuit domain rollback function, when receiving CS paging, if subscriber equipment has shifted out the MSC/VLR1 compass of competency of former registration, network side is initiated more new technological process of position by MME to the MSC/VLR2 that can serve sub-district, current user equipment place, system sets up the circuit domain connection by MSC/VLR2 then, thus the CS paging failure problem of having avoided subscriber equipment to cause because of the service that can not get current place sub-district MSC/VLR.
Fig. 7 is the flow process of the selection circuit domain service network of the embodiment of the invention 4, is with the main distinction of embodiment 3, in embodiment 4, sends location update message by SGSN to MSC/VLR2, and concrete paging flow process comprises:
Step 601,602,603,604,605,606a, 606b respectively with embodiment 3 in step 501,502,503,504,505,506a, 506b corresponding identical, no longer endure at this and to state.
Step 606c, SGSN send to RNC and are redirected/handoff request, receive being redirected/handover acknowledge of RNC feedback then.
Step 606, optional, after step 606c finished, SGSN sent the message that the position is upgraded according to the MSC/VLR2 to the UE current area.
Step 606d, SGSN send to MME and are redirected/handover acknowledge.
Step 606e, MME send switching command to eNB.
Step 606f, eNB send switching command to UE.
Step 606g, UE send handoff response to RNC.
Step 606h, RNC send to be redirected to SGSN and finish message.
Step 606i, UE send position updating request to SGSN.
Of particular note, step 606 also can be carried out after step 606h finishes, and can also carry out after step 606i finishes.
Step 607,608,609,610,611 respectively with embodiment 3 in step 507,508,509,510,511 corresponding identical, no longer endure at this and to state.
In the present embodiment, reside in the subscriber equipment of supporting in the packet field network sub-district with circuit domain rollback function, when receiving CS paging, if subscriber equipment has shifted out the MSC/VLR1 compass of competency of former registration, network side is initiated more new technological process of position by SGSN to the MSC/VLR2 that can serve sub-district, current user equipment place, system sets up the circuit domain connection by MSC/VLR2 then, thus the CS paging failure problem of having avoided subscriber equipment to cause because of the service that can not get current place sub-district MSC/VLR.
Fig. 8 is the flow process of the selection circuit domain service network of the embodiment of the invention 5, and the embodiment of the invention 5 is with the main distinction of embodiment 3,4, in embodiment 5, sends location update message by RNC to MSC/VLR2, and concrete paging flow process comprises:
Step 701,702,703,704,705,706a, 706b respectively with embodiment 3 in step 601,602,603,604,605,606a, 606b corresponding identical, no longer endure at this and to state.
Step 706c, SGSN send to RNC and are redirected/handoff request, receive being redirected/handover acknowledge of RNC feedback then.
Step 706d, SGSN send to MME and are redirected/handover acknowledge.
Step 706e, MME send switching command to eNB.
Step 706f, eNB send switching command to UE.
Step 706g, UE send handoff response to RNC.
Step 706, optionally is after execution in step 706g, promptly when executing the PS switching flow or afterwards, RNC sends the message that the position is upgraded to the MSC/VLR2 of the current affiliated subdistrict of UE.
Step 706h, RNC send to be redirected to SGSN and finish message.
Step 706i, UE send position updating request to SGSN.
Step 706j, RNC send the routing update request to SGSN.
Of particular note, step 706 also can be carried out simultaneously with step 706h, perhaps carries out after step 706h finishes, and can also carry out after step 706i finishes.
Step 707,708,709,710,711 respectively with embodiment 3 in step 507,508,509,510,511 corresponding identical, no longer endure at this and to state.
In the present embodiment, reside in the subscriber equipment of supporting in the packet field network sub-district with circuit domain rollback function, when receiving CS paging, if subscriber equipment has shifted out the MSC/VLR1 compass of competency of former registration, network side is initiated more new technological process of position by RNC to the MSC/VLR2 that can serve sub-district, current user equipment place, system sets up the circuit domain connection by MSC/VLR2 then, thus the CS paging failure problem of having avoided subscriber equipment to cause because of the service that can not get current place sub-district MSC/VLR.
Fig. 9 is the flow process of the selection circuit domain service network of the embodiment of the invention 6, the embodiment of the invention 6 is with the main distinction of embodiment 3,4,5, embodiment 3,4,5 is applicable to the user who is in state of activation, and embodiment 6 is applicable to that the support PS network cell subscriber equipment that is in idle condition selects the method for circuit domain service network when receiving the paging of CS territory, and concrete paging flow process comprises:
Step 801,802,803,804,805 respectively with embodiment 3 in step 501,502,503,504,505 corresponding identical, no longer endure at this and to state.
After step 806, eNB receive the CS beep-page message, this beep-page message is sent to UE.
If UE still can obtain service in the sub-district of the MSC/VLR1 of its registration administration, then when UE sends beep-page message, send NACC (Network Assistant Cell Change, the network assistance switching) related news or RRC related news carry redirect message, promptly send the related command that switches to MSC/VLR1 compass of competency sub-district to UE.Described beep-page message also can be bundled under the signaling message with the NACC related news and send to UE.Execution in step 807a switches to MSC/VLR1 compass of competency sub-district with UE then, and finishes follow-up page response flow process according to prior art, does not state enduring at this.
Otherwise, if UE can not obtain service in the sub-district of the MSC/VLR1 of its registration administration, then after beep-page message sends to UE, eNB will switch to other adjacent sub-district with UE according to the support circuit domain cell information of the position correspondence at the current place of UE, as the sub-district of MSC/VLR2 compass of competency.After UE received beep-page message and finds that current area is not the sub-district of initiating in the MSC/VLR1 compass of competency of paging, execution in step 807b, UE MSC/VLR2 under current area initiated more new technological process of position.
Behind execution of step 807b, execution in step 808,809,810,811,812 successively.Step 808,809,810,811,812 respectively with embodiment 3 in step 507,508,509,510,511 corresponding identical, no longer endure at this and to state.
Of particular note: for embodiment 3,4,5,6, UE can also issue MSC/VLR2 simultaneously with page response and location update message, after MSC/VLR2 receives page response, can executing location new technological process more, trigger the change of MSC/VLR1 notice GMSC UE position; Also can be that MSC/VLR2 directly notifies GMSC UE the change of position.
In the present embodiment, UE is finding can in time to send location update message to new MSC/VLR after service MSC/VLR changes, so that set up the CS business as early as possible.
Figure 10 is the flow process of the selection circuit domain service network of the embodiment of the invention 7, and the embodiment of the invention 7 is with the main distinction of embodiment 6, in embodiment 7, UE is registered to all and current MME simultaneously with on the MSC/VLR that covers, and concrete paging flow process comprises:
Step 901, UE send to network side and adhere to request.
Step 902, eNB transmit the request of adhering to of UE to MME.Comprise that further eNB may as UTRAN/GERAN information, report to MME by the support circuit domain cell information of S1 interface with sub-district, the current place of UE correspondence.Corresponding UTRAN/GERAN information may be a LA, also may be the list (tabulation) that a plurality of LA form.
It is worthy of note that if eNB report, to obtain the method for the UTRAN/GERAN cell information of the current position of UE correspondence may be that eNB goes up configuration to eNB so, or UE carries (as RRC connection request/finish message) in RRC message.
Step 903, optionally finish the UE identifying procedure.
Step 904, MME are selected MSC/VLR according to the UTRAN/GERAN cell information of the current position correspondence that obtains, and send the message that co-location is upgraded to MSC/VLR.
If the UTRAN/GERAN sub-district that the TA that is administered with MME is corresponding belongs to the compass of competency of a plurality of MSC/VLR, MME sends location update message to all MSC/VLR simultaneously so.
Step 905, receive all MSC/VLR of position requests, as MSC/VLR1 to MSC/VLRn among the figure, the MME address current according to UE, and send position updating request, the circuit domain position area information at the current place of HLR/HSS record UE to HLR/HSS.If the band of position is a plurality of, HLR/HSS is just with LA list or with the mode record of the MSC/VLR List corresponding with the band of position so.
It is worthy of note that if step 902 is not carried LA information, MME can learn corresponding described LA list in UTRAN/GERAN sub-district or the MSC/VLR List of TA that is administered with MME by local configuration information so.
After step 906, completing place are upgraded, receive that all MSC/VLR of position requests upgrade acceptance response to the MME home position.
Step 907, MME send to UE and adhere to acceptance.
Step 908, GMSC receive the IAM request.
Step 909, GMSC obtain LA list or MSC/VLR List from HLR/HSS.
Several MSC/VLR that step 910, GMSC comprise in tabulation perhaps only can be referred to as the MSC/VLR of main MSC/VLR to one of them, send IAM message.
A MSC/VLR that can be referred to as main MSC/VLR in step 911, the tabulation, perhaps several MSC/VLR send beep-page message to MME simultaneously.
Step 912, MME send beep-page message to eNB.
Step 913, eNB initiate to carry out the PS switching flow, or NACC carries redirection information by sending in RRC reiect (refusal) message or RRC release (release) message to UE, and order UE switching or sub-district gravity treatment are to conventional cell.
Step 914, UE are resident after conventional cell, send page-response message to the MSC/VLR of its current resident sub-district correspondence.
Of particular note, LA List in the embodiment of the invention is meant the tabulation of the circuit domain position area information that is used for depositing the current place of UE, MSC/VLR List is meant and is used for depositing the MSC/VLR tabulation that circuit domain sub-district correspondence is supported at the current place of UE, only is for convenience of description and the title that adopts.This title can not limit embodiment of the invention applicable scope, promptly in some system, perhaps there is not to adopt the title of " LA List " or " MSC/VLR List ", but, can not think thus that the technical scheme in the embodiment of the invention can not be applicable to these systems.
In the present embodiment, reside in the subscriber equipment supported in the packet field network sub-district by being registered to the mode of a plurality of MSC/VLR in advance, the CS paging failure problem of having avoided subscriber equipment to cause because of the service that can not get current place sub-district MSC/VLR with circuit domain rollback function.
One of ordinary skill in the art will appreciate that, all or part of step in the various embodiments described above can realize by the relevant hardware of program command, described program can be stored in the computer read/write memory medium, and described storage medium can be ROM/RAM, magnetic disc, CD etc.
Though will also be appreciated that in the above-mentioned explanation, for ease of understanding, the step of method has been adopted the succession description, should be pointed out that the strictness of restriction do not do to(for) the order of above-mentioned steps.
Introduce the mobile communcations system embodiment that the embodiment of the invention relates to below, this system can realize as the step described in the above-mentioned method embodiment, be understandable that, this system in the embodiment of the invention can also comprise other numerous entities of realizing communication function, belong to normalized technology in the communications field for the technology that may disclose in other prior art, repeat no more details in the present embodiment; But, only pointed out major part in this system here in order to introduce the implementation in the embodiment of the invention.See also Figure 11, this system 10 comprise subscriber equipment 11 and with the network side 12 of its communication, wherein:
Subscriber equipment 11 comprises transmitting element 111 and receiving element 112, and wherein: transmitting element 111 is used for sending to network side 12 request message of the support circuit domain cell information that carries sub-district, current place correspondence; Receiving element 112 is used to receive the affirmation message to described request message that network side 12 sends.
Network side 12 comprises acquiring unit 121 and selected cell 123, and wherein acquiring unit 121, are used for obtaining the support circuit domain cell information of sub-district, the current place of subscriber equipment, packet field network sub-district correspondence; Selected cell 123 is used for selecting the circuit domain service network that can serve sub-district, the current place of described subscriber equipment according to after supporting that the circuit domain cell information is heavily assigned described subscriber equipment/switch to the support circuit domain sub-district that can serve current user equipment.This network equipment can also comprise memory cell 122, is used for the MSC/VLR tabulation that stored energy is served the circuit domain service network of the circuit domain position area information tabulation at the current place of described subscriber equipment or sub-district, current place.
Be understandable that, structure shown in the accompanying drawing only is schematic, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, for example MME perhaps is distributed on several network element.
Accompanying drawing and associated description are not to be used to limit protection scope of the present invention just for principle of the present invention is described.For example, the message name in the various embodiments of the present invention can change to some extent according to the difference of network, and some message also can be omitted.Therefore, all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (17)
1, a kind of method of selecting the circuit domain service network is characterized in that, comprising:
Obtain the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district;
The circuit domain service network that selection can be served sub-district, the current place of described subscriber equipment.
2, method according to claim 1 is characterized in that, the described support circuit domain cell information that obtains sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district is specially:
Receive the request of adhering to of carrying described support circuit domain cell information that transmit the base station;
Perhaps, the described support circuit domain cell information that receives base station configuration or obtain;
Perhaps, receive the redirected/switching requirement of carrying described support circuit domain cell information that the base station sends;
Perhaps, obtain described support circuit domain cell information by local configuration information.
3, method according to claim 1 and 2 is characterized in that, described support circuit domain cell information is a position area information, or the tabulation of a plurality of position area information composition.
4, method according to claim 1 is characterized in that, the described circuit domain service network of selecting to serve sub-district, the current place of described subscriber equipment specifically comprises:
On moving exchanging center MSC/visitor location register VLR with the described circuit domain service network that can service sub-district, the current place of described subscriber equipment of described user equipment registration to;
Perhaps described user equipment registration or position are updated on the MSC/VLR of a plurality of described circuit domain service networks that can service sub-district, the current place of described subscriber equipment;
Perhaps send position updating request to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment.
5, method according to claim 4 is characterized in that, described with described user equipment registration on the MSC/VLR of described circuit domain service network that can service sub-district, the current place of described subscriber equipment after, also comprise:
Measure regularly or irregularly whether zone, subscriber equipment position changes.
6. method according to claim 5 is characterized in that, and is regularly described or irregularly measure after the location of user equipment zone changes, and also comprises:
Shift out the compass of competency of the circuit domain service network of original registration if measurement result is a subscriber equipment, then reselect described circuit domain service network that can service sub-district, the current place of described subscriber equipment.
7, method according to claim 4 is characterized in that, on the described MSC/VLR that described user equipment registration or position is updated to a plurality of described circuit domain service networks that can service sub-district, the current place of described subscriber equipment after, also comprise:
In attaching position register HLR/ home subscriber server HSS, store the MSC/VLR tabulation of the circuit domain service network that comprises described a plurality of described energy services sub-district, the current place of described subscriber equipment or the circuit domain position area information tabulation at current place.
8, method according to claim 7 is characterized in that, after described registration is finished, also comprises:
When receiving CS paging, gateway MSC GMSC one or several MSC/VLR in described MSC/VLR tabulation sends initial address message IAM; One or several MSC/VLR in the described MSC/VLR tabulation sends beep-page message; After described beep-page message sent, a described MSC/VLR obtained the response message of subscriber equipment.
9, method according to claim 4 is characterized in that, described MSC/VLR transmission position updating request of serving the circuit domain service network of sub-district, the current place of described subscriber equipment to described energy is specially:
Send location update message by mobile management entity MME to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment;
Perhaps send location update message to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment by service universal packet wireless business affair GPRS Support Node SGSN;
Perhaps send location update message to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment by radio network controller (RNC);
Perhaps send location update message to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment by subscriber equipment.
10, method according to claim 9 is characterized in that,
The described message of upgrading to the described MSC/VLR transmission position that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment by MME is specially: described MME is when objective network sends the packet domain handoff request, after perhaps receiving switching/redirected replying from described objective network, after perhaps redirected the finishing, send location update message to the described MSC/VLR that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment;
Describedly send the message of upgrading the position by SGSN to the MSC/VLR of described circuit domain service network that can service sub-district, the current place of described subscriber equipment and be specially: after described SGSN is carrying out and receiving the redirected response message that described RNC returns in the process that is redirected, perhaps in carrying out redirection process, receive described RNC redirected finish message after, perhaps executing described packet domain switching flow, and after receiving the position updating request of described subscriber equipment, send location update message to the described MSC/VLR that can serve sub-district, current user equipment place;
The described message of upgrading to the described MSC/VLR transmission position that can serve the circuit domain service network of sub-district, the current place of described subscriber equipment by RNC is specially: after described RNC is executing the packet domain switching flow, perhaps after receiving the position updating request of subscriber equipment, send the redirected message of finishing, and send location update message to the described MSC/VLR that can serve sub-district, current user equipment place to described SGSN;
Describedly send location update message by subscriber equipment to the MSC/VLR of described circuit domain service network that can service sub-district, the current place of described subscriber equipment and be specially: described subscriber equipment is being received CS paging message and is being found that current area is not after initiating the sub-district of MSC/VLR compass of competency of paging, to send location update message to the described MSC/VLR that can serve sub-district, current user equipment place.
11, method according to claim 1 is characterized in that, described obtain the support circuit domain cell information of sub-district, the current place of subscriber equipment correspondence in the packet field network sub-district before, also comprise:
Receive CS paging message, comprise the RNC list of identities that MSC/VLR administered of the former registration of described subscriber equipment in the described CS paging message.
12, method according to claim 11 is characterized in that, the described circuit domain service network of selecting to serve sub-district, the current place of described subscriber equipment is specially:
Select the affiliated support circuit domain subzone network of MSC/VLR of the former registration of a described subscriber equipment.
13, a kind of method of selecting the circuit domain service network is characterized in that, comprising:
Subscriber equipment sends the request message of the support circuit domain cell information that carries sub-district, current place correspondence in the packet field network sub-district to network side;
Receive the affirmation message that network side sends to described request message.
14, a kind of device of selecting the circuit domain service network is characterized in that, comprising:
Acquiring unit is used for obtaining the support circuit domain cell information of sub-district, the current place of subscriber equipment, packet field network sub-district correspondence;
Selected cell, the circuit domain service network that is used to select to serve sub-district, the current place of described subscriber equipment.
15, device according to claim 14, it is characterized in that, this device can also comprise memory cell, is used for the MSC/VLR tabulation that stored energy is served the circuit domain service network of the circuit domain position area information tabulation at the current place of described subscriber equipment or sub-district, current place.
16, a kind of subscriber equipment of selecting the circuit domain service network is characterized in that, comprising:
Transmitting element is used for sending to network side the request message of the support circuit domain cell information carry sub-district, current place correspondence;
Receiving element is used to receive the affirmation message to described request message that network side sends.
17, a kind of system of selecting the circuit domain service network is characterized in that, comprising:
Subscriber equipment in the packet field network sub-district is used for sending to network side the support circuit domain cell information of sub-district, current place correspondence;
Network side is used for receiving the support circuit domain cell information of sub-district, the current place of subscriber equipment, packet field network sub-district correspondence; And select the circuit domain service network to serve sub-district, the current place of described subscriber equipment.
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| CNA2008100676131A CN101594605A (en) | 2008-05-28 | 2008-05-28 | Select method, the Apparatus and system of circuit domain service network |
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| CNA2008100676131A CN101594605A (en) | 2008-05-28 | 2008-05-28 | Select method, the Apparatus and system of circuit domain service network |
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| CNA2008100676131A Pending CN101594605A (en) | 2008-05-28 | 2008-05-28 | Select method, the Apparatus and system of circuit domain service network |
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