CN101527899B - Method and system for initiating updating of tracking area in switching process and user equipment - Google Patents
Method and system for initiating updating of tracking area in switching process and user equipment Download PDFInfo
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Abstract
The invention provides a method and a system for updating the tracking area in the switching process. The method comprises the following steps: during the switching process of user equipment (UE), a target base station provides the tracking area information of the target cell where the UE is in for the UE; and the UE judges whether the tracking area information conforms to the tracking area list or not, and if yes, the UE initiates the tracking area updating process after the switching is finished. The method and the system determine the triggering conditions of the tracking area updating process initiated by the UE in the switching process.
Description
Technical field
The present invention relates to moving communicating field, particularly the method for initiating updating of tracking area, system and subscriber equipment in the handoff procedure.
Background technology
3GPP has defined the handoff procedure of subscriber equipment (UE); As: switch the base station of striding of having described Mobility Management Entity (MME) variation among the TS23.401; MME is constant, gateway (GW) also becomes strides the base station and switches, and MME is constant but switch the base station of striding that service GW changes; Switching for cross wireless access technology (RAT); 3GPP has also defined UMTS grounding wireless access network (UTRAN) and has arrived the switching of the UMTS grounding wireless access network (E-UTRAN) that strengthens and the switching that global system for mobile communications, GPRS or enhanced data rate for global evolution Radio Access Network (GERAN, GSM (GPRS)/EDGE Radio Access Net) arrive E-UTRAN.For above-mentioned multiple switching, UE wants initiating updating of tracking area (TAU) process after switching, still, which kind of mode to indicate UE to initiate TAU through, does not clearly indicate in the prior art, makes that the mode of initiating TAU is complicated.
Summary of the invention
The embodiment of the invention proposes the method for initiating updating of tracking area in a kind of handoff procedure, the trigger condition that this method can clear and definite UE initiating updating of tracking area in handoff procedure.
The embodiment of the invention also proposes the system and the UE of initiating updating of tracking area in a kind of handoff procedure, trigger condition that can clear and definite UE initiating updating of tracking area in handoff procedure.
Technical scheme of the present invention is achieved in that
The method of initiating updating of tracking area in a kind of handoff procedure comprises:
In the UE handoff procedure, target BS (eNB) provides the tracking area information of UE place Target cell to UE; Said UE judges whether said tracking area information belongs to the tracking area information tabulation of UE, if do not belong to, then UE switch accomplish after the initiating updating of tracking area process;
If said switch to Mobility Management Entity MME constant stride the base station when switching; Said target BS provides the tracking area information of UE place Target cell to comprise to user equipment (UE): target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to source base station; Source base station is carried on said tracking area information in the switching command message, is sent to UE;
Stride the base station when switching if the said MME of switching to changes, said target BS provides the tracking area information of UE place Target cell to comprise to user equipment (UE):
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source base station with said tracking area information; Source base station is carried on said tracking area information in the switching command message, is sent to UE;
If the said UMTS grounding wireless access network UTRAN that switches to is when the cross wireless access technology RAT of the UMTS grounding wireless access network E-UTRAN that strengthens switches, said target BS comprises to the tracking area information that user equipment (UE) provides UE to belong to Target cell:
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source RNC with said tracking area information; Source RNC is carried on said tracking area information in the switching command message, is sent to UE.
If said switch to global system for mobile communications, GPRS or enhanced data rate for global evolution Radio Access Network GERAN to E-UTRAN stride RAT when switching, said target BS comprises to the tracking area information that user equipment (UE) provides UE to belong to Target cell:
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source BSS with said tracking area information; Source BSS is carried on said tracking area information in the packet domain switching command message, is sent to UE.
The system of initiating updating of tracking area is characterized in that in a kind of handoff procedure, and said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to source base station;
Source base station is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
The system of initiating updating of tracking area in a kind of handoff procedure, said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source base station;
Source base station is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
The system of initiating updating of tracking area in a kind of handoff procedure, said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source RNC;
Source RNC is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
The system of initiating updating of tracking area in a kind of handoff procedure, said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source BSS;
Source BSS is used for said tracking area information is carried on the packet domain switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
The system of initiating updating of tracking area in a kind of handoff procedure, said system comprises:
MME; Be used to receive the tracing section updating request message that UE sends, judge whether the switching that said UE carries out is that switch the constant base station of striding of MME, if; Then MME upgrades to UE returning tracking district and accepts message, and said tracing section updating is accepted message and comprised new tracking area information tabulation;
UE is used at handoff procedure, receives said tracing section updating and accepts message; Judge whether new tracking area information tabulation that said tracing section updating accepts to comprise in the message belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
It is thus clear that the method and system that the embodiment of the invention proposes provide the TA information of Target cell to UE through target eNB; UE judges that this TA information is whether in the TA of its registration tabulation; If do not belong to this TA tabulation, UE will initiate the TAU process in goal systems, the trigger condition of UE initiates in handoff procedure TAU process that this method is clear and definite; Make UE under fixing condition, trigger TAU, thereby simplified the process of initiating TAU.。
Accompanying drawing
Fig. 1 is the method flow diagram of tracing section updating in the embodiment of the invention handoff procedure;
Fig. 2 is the constant method flow diagram of striding transmission TA information in the switching of base station of embodiment of the invention MME;
The method flow diagram of striding transmission TA information in the switching of base station that Fig. 3 changes for embodiment of the invention MME;
Fig. 4 for embodiment of the invention UTRAN to E-UTRAN stride RAT switch in target eNB send the method flow diagram of TA information to target MME;
Fig. 5 for embodiment of the invention UTRAN to E-UTRAN stride RAT switch in source RNC send the method flow diagram of TA information to UE;
Fig. 6 for embodiment of the invention GERAN to E-UTRAN stride RAT switch in target eNB send the method flow diagram of TA information to target MME;
Fig. 7 for embodiment of the invention GERAN to E-UTRAN stride RAT switch in source BSS send the method flow diagram of TA information to UE;
Fig. 8 is the constant switching flow figure of embodiment of the invention MME and Serving GW
Fig. 9 is the switching flow figure that the constant but Serving GW of embodiment of the invention MME changes.
Embodiment
The embodiment of the invention proposes the method for initiating updating of tracking area in a kind of handoff procedure, and referring to Fig. 1, Fig. 1 is the method flow diagram of tracing section updating in the embodiment of the invention handoff procedure, and this method comprises:
In the step 101:UE handoff procedure, target eNB provides the TA information of UE place Target cell to UE;
Step 102:UE judges whether said TA information belongs to the TA tabulation of UE, if belong to, then execution in step 103.
Step 103:UE is the initiating updating of tracking area process after switching completion.
Wherein, to different types of handoff procedure, target eNB provides the mode difference of the TA information of UE place Target cell in the step 101 to UE.Specifically comprise following mode:
(1) switches for the constant base station of striding of Mobility Management Entity MME; In such cases between target eNB and the source eNB and and UE between have interacting message; Can utilize the transmission of messages TA information that has existed; Target eNB to UE provide UE place Target cell TA information mode can for: target eNB is carried on said TA information in Handover Request Acknowledge (the Handover Request Acknowledge) message and (specifically can be carried among the Target eNodeB to Source eNodeB Transparent Container IE), is sent to source eNB; Source eNB is carried on said TA information in switching command (Handover Command) message (RRC message) (specifically can be carried in the Container information), is sent to UE.
Referring to Fig. 2, Fig. 2 is the constant method flow diagram of striding transmission TA information in the switching of base station of embodiment of the invention MME.Wherein, step 206 is sent the Handover Request Acknowledge message of carrying TA information, and step 207 is sent the Handover Command message of carrying TA information.The same prior art of other steps comprises and switches set-up procedure, hand-off execution process and switching complete process.Switch set-up procedure and comprise the process of measuring control, switch source base station request target base station; Set-up procedures such as hand-off execution process is carried out synchronously, buffering, and carry out switching; Switch steps such as the conversion of complete process execution route, user plane upgrading, source base station discharges resource.Specifically comprise: step 201, source eNB send measurement control message to UE.Step 202, the report of UE return measurement.Step 203, source eNB carry out the HO decision process.Step 204, source eNB send handoff request message to target eNB.Step 205, target eNB are carried out and are admitted control.Step 206, target eNB are returned switch acknowledgment message.Step 207, source eNB send switching command to UE.Step 208, execution synchronizing process.Step 209, target eNB are sent up link replacement message to UE.Step 210, UE return switch acknowledgment message to target eNB.Step 211, target eNB are to MME transmit path transforming message.Step 212, MME send user plane to gateway and upgrade request.Step 213, gateway conversion downlink path.Step 214, gateway return user plane and upgrade response.Step 215, MME are to target eNB return path conversion acknowledge message.Step 216, target eNB notification source eNB discharge resource.Step 217, source eNB discharge resource.
(2) switch the base station of striding that changes for MME; In such cases between target eNB and the target MME, between target MME and the source eNB and have interacting message between source eNB and the UE; Can utilize the transmission of messages TA information that has existed; Target eNB to UE provide UE place Target cell TA information mode can for: target eNB is carried on said TA information in Handover Request Acknowledge (the Handover Request Acknowledge) message and (specifically can be carried among the Target eNodeB to Source eNodeB Transparent Container IE), is sent to target MME; Target MME is sent to source eNB with said TA information; Source eNB is carried on said TA information in switching command (Handover Command) message (RRC message) (specifically can be carried in the Container information), is sent to UE.
Referring to Fig. 3, the method flow diagram of striding transmission TA information in the switching of base station that Fig. 3 changes for embodiment of the invention MME.Step 305a sends the Handover Request Acknowledge message of carrying TA information, and step 310 is sent the Handover Command message of carrying TA information.UE carries out handoff procedure in step 301～step 317, and wherein, UE receives TA information in the step 310; UE judges the one's own TA tabulation of this TA information, and after handoff procedure was accomplished, after promptly step 317 was accomplished, execution in step 318 was initiated the TAU process.Step 317～step 327 is the TAU process.Specifically comprise: step 301, UE decision are restarted through S1.Step 302, source eNB send switching command to source MME.Step 303, source MME send forward direction replacement request to target MME.Step 304, target MME send the request of carrying of creating to destination service GW.Step 304a, destination service GW return to create and carry response.Step 305, target MME send handoff request to target eNB.Step 305a, target eNB are returned Handover Request Acknowledge.Step 306, target MME send the request of carrying of creating to destination service GW.Step 306a, destination service GW return to create and carry response.Step 307, target MME return forward direction replacement response to source MME.Step 308, source MME send the request of carrying of creating to the source gateway.Step 309, source MME send switching command to source eNB.Step 310, source eNB send switching command to UE.Step 311, source eNB send the data that are used for direct or indirect forward direction.Step 312, UE return switch acknowledgment message to target eNB.Step 313, target eNB are sent to target MME and are switched report messages.Step 314, target MME send the forward direction replacement to source MME and accomplish message.Step 315, target MME send more new bearer request to destination service GW.Step 316, PDN GW accomplish more new bearer.Step 317, destination service GW return more new bearer response to target MME.Step 318, UE initiate the TAU request.Step 319, completion safety function.Step 320, target MME send to HSS and upgrade position requests.Step 321, HSS send delete position message to source MME.Step 322, source MME indication source eNB discharge resource.Step 323, source MME send the releasing bearing request to the source gateway.Step 324, HSS insert user data to target MME.Step 325, HSS send to target MME and upgrade the position acknowledge message.Step 326, target MME return TAU to UE and accept message.Step 327, UE return TAU and accomplish message.
(3) switch to the RAT that strides of E-UTRAN for UTRAN; In such cases between target eNB and the source RNC, between source RNC and the target MME and have interacting message between target MME and the UE; Can utilize the transmission of messages TA information that has existed; Target eNB to UE provide UE place Target cell TA information mode can for: target eNB is carried on said TA information in Handover Request Acknowledge (the Handover Request Acknowledge) message and (specifically can be carried among the Target RNC to Source RNC Transparent Container IE), is sent to target MME; Target MME is sent to source RNC with said TA information; Source RNC is carried on said TA information in switching command (Handover Command) message (RRC message) (specifically can be carried in the Container information), is sent to UE.
Referring to Fig. 4, Fig. 4 for embodiment of the invention UTRAN to E-UTRAN stride RAT switch in target eNB send the method flow diagram of TA information to target MME.Step 405a sends the Handover Request Acknowledge message of carrying TA information.Shown in Figure 4 for the preparatory stage of striding RAT switching of UTRAN to E-UTRAN, comprise processes such as foundation carrying, forward direction replacement, the preparation that completion is switched.Specifically comprise: step 401, initiation are switched.Step 402, source RNC send the order of resetting to source SGSN.Step 403, source SGSN send forward direction replacement request to target MME.Step 404, foundation are carried.Step 405, target MME send handoff request message to target eNB.Step 405a, target eNB are returned switching request acknowledgement message to target MME.Step 406, foundation are carried.Step 407, target MME return forward direction replacement response to source SGSN.Step 408, source SGSN request gateway are created new carrying.
Referring to Fig. 5, Fig. 5 for embodiment of the invention UTRAN to E-UTRAN stride RAT switch in source RNC send the method flow diagram of TA information to UE.Step 502 is sent the Handover Command message of carrying TA information.Among Fig. 5, step 501～step 510 is a handover execution stage, and wherein, UE receives TA information in the step 502; UE judges the one's own TA tabulation of this TA information, and after handoff procedure was accomplished, after promptly step 510 was accomplished, execution in step 511 was initiated the TAU process.Step 511～step 520 is the TAU process.Detailed process comprises: step 501, source SGSN send the order of resetting to source RNC.Step 502, source RNC send switching command to UE.Step 503, source RNC return the SRNS context message to source SGSN.Step 504, access procedure.Step 505, UE return to insert to target eNB and accomplish message.Step 506, target eNB are sent to target MME and are switched report messages.Step 507, target MME send the forward direction replacement to source SGSN and accomplish message.Step 508, source SGSN send to destination service GW and upgrade bearing request message.Step 509, destination service GW indication PDN GW carry out more new bearer.Step 510, destination service GW return more new bearer response to target MME.Step 511, UE initiate the TAU request to target MME.Step 512, execution safety function.Step 513, target MME send to HSS and upgrade location message.Step 514, HSS send delete position message to source SGSN.Discharge the Iu interface resource between step 515, source RNC and the source SGSN.Step 516, deletion PDP Context.Step 517, HSS insert user data to target MME.Step 518, HSS return to target MME and upgrade the position acknowledge message.Step 519, target MME send TAU to UE and accept message.Step 520, UE return TAU and accomplish message.
(4) switch to the RAT that strides of E-UTRAN for GERAN; There is interacting message between target eNB and target MME, target MME and the source BSS and between source BSS and the UE in such cases; Can utilize the transmission of messages TA information that has existed; Target eNB to UE provide UE place Target cell TA information mode can for: target eNB is carried on said TA information in Handover Request Acknowledge (the Handover Request Acknowledge) message and (specifically can be carried among the Target BSS to Source BSS Transparent Container IE), is sent to target MME; Target MME is sent to source BSS with said TA information; Source BSS is carried on said TA information in packet domain switching command (the PS Handover Command) message (RRC message) (specifically can be carried in the Container information), is sent to UE.
Referring to Fig. 6, Fig. 6 for embodiment of the invention GERAN to E-UTRAN stride RAT switch in target eNB send the method flow diagram of TA information to target MME.Step 605a sends the Handover Request Acknowledge message of carrying TA information.Shown in Figure 6 for the preparatory stage of striding RAT switching of GERAN to E-UTRAN, comprise processes such as foundation carrying, forward direction replacement, the preparation that completion is switched.Concrete steps comprise: step 601, switching beginning.Step 602, source BSS send the PS switching command to source SGSN.Step 603, source SGSN send forward direction replacement request to target MME.Step 604, establishment are carried.Step 605, target MME indicating target eNB carry out switching.Step 606, establishment are carried.Step 607, target MME return forward direction replacement response to source SGSN.Create between step 608, source SGSN and the gateway and carry.
Referring to Fig. 7, Fig. 7 for embodiment of the invention GERAN to E-UTRAN stride RAT switch in source BSS send the method flow diagram of TA information to UE.Step 702 is sent the PS Handover Command message of carrying TA information.Among Fig. 7, step 701～step 711 is a handover execution stage, and wherein, UE receives TA information in the step 702; UE judges the one's own TA tabulation of this TA information, and after handoff procedure was accomplished, after promptly step 711 was accomplished, execution in step 712 was initiated the TAU process.Step 712～step 720 is the TAU process.Specifically comprise: step 701, source SGSN send PS HO order acknowledge message to source BSS.Step 702, source BSS send the PS switching command message to UE.Step 703, source SGSN send forward direction SRNS context to target MME.Step 704, access procedure.Step 705, UE send handoff completion message to target eNB.Step 706, target eNB are sent to target MME and are switched report messages.Step 707, completion forward direction are reset.Step 708, target MME send the upgrading bearing request message to gateway.New bearer more between step 709, gateway and the PDN GW.Step 710, gateway return more new bearer acknowledge message.Step 711, stream of packets delete procedure.Step 712, UE initiate the TAU request.Step 713, execution safety function.Step 714, target MME send to HSS and upgrade positional information.Step 715, HSS send delete position information to source SGSN.Delete PDP Context between step 716, source SGSN and the gateway.Step 717, insertion user data.Step 718, HSS send to target MME and upgrade the position acknowledge message.Step 719, target MME send the TAU acknowledge message to UE.Step 720, UE return TAU and accomplish message.
In the foregoing description, described TA information can be tracking area identification (TAI) information or tracking area coding (TAC) information.
By the way, the TA information that target eNB provides UE to belong to Target cell to UE, UE is after receiving TA information under (active) state of activation; Through comparing with tracking area tabulation (TA List); Judge whether this TA information belongs to this TA List, if belong to, then after finding self to have switched to goal systems; UE initiates the TAU process through sending tracing section updating request (Tracking Area Update Request) message.
In the prior art; Stride the base station switching and stride the RAT switching for what MME changed, owing to switch back MME change, therefore; In the TAU process; UE need carry out certain Signalling exchange between the network node after target MME sends Tracking Area Update Request message, as: target MME need carry out and HSS between renewal location (Update Location) process, insert user data (Insert Subscriber Data) process; Authentication between MME and the UE (Authentication) process, safe mode command (Security Mode Command) process.But, switch for the base station of striding that MME is constant, because MME is constant, just need not carry out above-mentioned Signalling exchange in the TAU process.
Based on above-mentioned analysis; The inventive method may further include: MME receives the Tracking Area Update Request message that UE sends; Judge whether said switching is that switch the constant base station of striding of MME, if then MME upgrades to UE returning tracking district and accepts (Tracking Area Update Accept) message; Said Tracking Area Update Accept message comprises new TA List, can further include GUT.UE upgrades the TA List of self according to new TA List and the GUTI that receive, and concrete implementation is identical with implementation of the prior art.This is a kind of process of tracing section updating fast; Switch the base station of striding to MME is constant; This process need not to carry out above-mentioned Update Location process, Insert Subscriber Data process, Authentication process and Security Mode Command process etc.; Thereby can save the Signalling exchange between the network node, accelerate to switch the deadline, improve systematic function.Concrete realization flow such as Fig. 8 and shown in Figure 9.
Referring to Fig. 8, Fig. 8 is embodiment of the invention MME and the constant switching flow figure of gateway (Serving GW).Wherein, step 801～step 805 is that the stage is accomplished in the switching of handoff procedure, processes such as execution route conversion, user plane upgrading, and target BS notification source base station discharges resource.Detailed process is: step 801, target eNB are to MME transmit path conversion request message.Step 802, MME send user plane to gateway and upgrade request.Step 803, gateway return user plane to MME and upgrade response.Step 804, MME are to target eNB return path conversion request acknowledge message.Step 805, target eNB indication source eNB discharge resource.Step 806, UE send the TAU request message to MME.Step 807, MME return the TAU response message.
Step 806: if UE finds the TA of this moment not in the TA Li st of storage, and be linked into Target cell, will have sent Tracking Area Update Request message to MME, notice MME UE this moment is positioned at new tracking area.
Step 807:MME judges that this is the TAU process that UE initiates in switch step; And switching type is that switch the constant base station of striding of MME; If UE allows to insert, MME sends Tracking Area Update Accept message to UE, comprises a new TA List in the message; If desired, can further carry new GUTI.
Referring to Fig. 9, Fig. 9 is the switching flow figure that the constant but Serving GW of embodiment of the invention MME changes.Wherein, Step 901～step 907 is that the stage is accomplished in the switching of handoff procedure; The processes such as old carrying between new bearer, deletion source gateway and the MME between destination service gateway and the MME are changed, set up to execution route, and target BS notification source base station discharges resource.
Step 908: if UE finds the TA of this moment not in the TA List of storage, and be linked into Target cell, will have sent Tracking Area Update Request message to MME, notice MME UE this moment is positioned at new tracking area.
Step 909:MME judges that this is the TAU process that UE initiates in switch step; And switching type is Inter eNodeB handover without MME relocation; If UE allows to insert, MME sends Tracking Area Update Accept message to UE, comprises a new TA List in the message; If desired, can further carry new GUTI.Specifically comprise: step 901, target eNB are to MME transmit path conversion request message.Step 902, MME send the request of carrying of creating to the destination service gateway.Step 903～step 904, execution bearer update.Step 905, destination service GW return to create and carry response.Step 906, target eNB indication source eNB discharge resource.Step 907, MME indication source gateway deleting bearing.Step 908, UE send the TAU request message to MME.Step 909, MME return the TAU response message.
The embodiment of the invention also proposes the system of initiating updating of tracking area in a kind of handoff procedure, comprising:
Target BS is used for providing UE to belong to the tracking area information of Target cell to UE;
UE is used at handoff procedure, the tracking area information of the UE place Target cell that the receiving target base station provides; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if belong to, then switch accomplish after the initiating updating of tracking area process.
Said system may further include: source base station;
Said target BS is used for said tracking area information is carried on switching request acknowledgement message, is sent to source base station;
Said source base station is used for said tracking area information is carried on switching command message, is sent to UE.
Perhaps, said system may further include: target MME and source base station;
Said target BS is used for said tracking area information is carried on switching request acknowledgement message, is sent to target MME;
Said target MME is used for said tracking area information and is sent to source base station;
Said source base station is used for said tracking area information is carried on switching command message, is sent to UE.
Perhaps, said system may further include: target MME and source RNC;
Said target BS is used for said tracking area information is carried on switching request acknowledgement message, is sent to target MME;
Said target MME is used for said tracking area information is sent to source RNC;
Said source RNC is used for said tracking area information is carried on switching command message, is sent to UE.
Perhaps, said system may further include: target MME and source BSS;
Said target BS is used for said tracking area information is carried on switching request acknowledgement message, is sent to target MME;
Said target MME is used for said tracking area information is sent to source BSS;
Said source BSS is used for said tracking area information is carried on the packet domain switching command message, is sent to UE.
Perhaps, said system may further include:
MME; Be used to receive the tracing section updating request message that UE sends, judge whether the switching that said UE carries out is that switch the constant base station of striding of MME, if; Then MME upgrades to UE returning tracking district and accepts message, and said tracing section updating is accepted message and comprised new tracking area information tabulation.
The embodiment of the invention also proposes a kind of subscriber equipment, and subscriber equipment is used at handoff procedure, the tracking area information of the UE place Target cell that the receiving target base station provides; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if belong to, then switch accomplish after the initiating updating of tracking area process.
Above-mentioned subscriber equipment can comprise:
Receiver module, the UE that being used for the receiving target base station provides belongs to the tracking area information of Target cell;
Initiation module is used to judge whether said tracking area information belongs to the tracking area tabulation of UE, if belong to, then switch accomplish after the initiating updating of tracking area process.
It is thus clear that; Method, system and subscriber equipment that the embodiment of the invention proposes provide the TA information of Target cell, UE to judge that this TA information is whether in the TA of its registration information list through target eNB to UE; If do not belong to this TA information list; UE will initiate the TAU process in goal systems, this method is clear and definite, and UE initiates the trigger condition of TAU process in handoff procedure, and realize simple and original system has better compatibility.Further; For the constant switching of MME, then this TAU process can be a kind of quick TAU process, and need not between MME and the HSS carried out Update Location; Processes such as Insert Subscriber Data; Thereby the Signalling exchange between the minimizing network node is accelerated to switch the deadline, has improved systematic function.
Claims (9)
1. the method for initiating updating of tracking area in the handoff procedure is characterized in that said method comprises:
In the user equipment (UE) handoff procedure, target BS provides the tracking area information of UE place Target cell to UE; Said UE judges whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then UE switch accomplish after the initiating updating of tracking area process;
If said switch to Mobility Management Entity MME constant stride the base station when switching; Said target BS provides the tracking area information of UE place Target cell to comprise to user equipment (UE): target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to source base station; Source base station is carried on said tracking area information in the switching command message, is sent to UE;
Stride the base station when switching if the said MME of switching to changes, said target BS provides the tracking area information of UE place Target cell to comprise to user equipment (UE):
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source base station with said tracking area information; Source base station is carried on said tracking area information in the switching command message, is sent to UE;
If the said UMTS grounding wireless access network UTRAN that switches to is when the cross wireless access technology RAT of the UMTS grounding wireless access network E-UTRAN that strengthens switches, said target BS comprises to the tracking area information that user equipment (UE) provides UE to belong to Target cell:
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source RNC with said tracking area information; Source RNC is carried on said tracking area information in the switching command message, is sent to UE;
If said switch to global system for mobile communications, GPRS or enhanced data rate for global evolution Radio Access Network GERAN to E-UTRAN stride RAT when switching, said target BS comprises to the tracking area information that user equipment (UE) provides UE to belong to Target cell:
Target BS is carried on said tracking area information in the switching request acknowledgement message, is sent to target MME; Target MME is sent to source BSS with said tracking area information; Source BSS is carried on said tracking area information in the packet domain switching command message, is sent to UE.
2. method according to claim 1 is characterized in that, said tracking area information is: tracking area identification information or tracking area coded message.
3. method according to claim 1 is characterized in that, said method further comprises:
MME receives the tracing section updating request message that UE sends, and judges whether said switching is that switch the constant base station of striding of MME, if then MME upgrades to UE returning tracking district and accepts message, said tracing section updating is accepted message and comprised new tracking area information tabulation.
4. method according to claim 3 is characterized in that, said tracing section updating is accepted message and further comprised global unique temporary identity GUTI.
5. the system of initiating updating of tracking area in the handoff procedure is characterized in that said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to source base station;
Source base station is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
6. the system of initiating updating of tracking area in the handoff procedure is characterized in that said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source base station;
Source base station is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
7. the system of initiating updating of tracking area in the handoff procedure is characterized in that said system comprises: target BS, and the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source RNC;
Source RNC is used for said tracking area information is carried on switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
8. the system of initiating updating of tracking area in the handoff procedure is characterized in that said system comprises:
Target BS, the tracking area information that is used for UE is belonged to Target cell is carried on switching request acknowledgement message, is sent to target MME;
Target MME is used for said tracking area information is sent to source BSS;
Source BSS is used for said tracking area information is carried on the packet domain switching command message, is sent to UE;
UE is used at handoff procedure, receives the tracking area information of said UE place Target cell; Judge whether said tracking area information belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
9. the system of initiating updating of tracking area in the handoff procedure is characterized in that said system comprises:
MME; Be used to receive the tracing section updating request message that UE sends, judge whether the switching that said UE carries out is that switch the constant base station of striding of MME, if; Then MME upgrades to UE returning tracking district and accepts message, and said tracing section updating is accepted message and comprised new tracking area information tabulation;
UE is used at handoff procedure, receives said tracing section updating and accepts message; Judge whether new tracking area information tabulation that said tracing section updating accepts to comprise in the message belongs to the tracking area tabulation of UE, if do not belong to, then switch accomplish after the initiating updating of tracking area process.
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| CN 200810101532 CN101527899B (en) | 2008-03-07 | 2008-03-07 | Method and system for initiating updating of tracking area in switching process and user equipment |
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| CN102264157A (en) * | 2011-08-24 | 2011-11-30 | 大唐移动通信设备有限公司 | Method and device for releasing resources in shifting process |
| CN102958032B (en) * | 2011-08-25 | 2018-05-11 | 中兴通讯股份有限公司 | A kind of network side equipment of triggering terminal, system and method |
| CN109819439B (en) * | 2017-11-19 | 2020-11-17 | 华为技术有限公司 | Method for updating key and related entity |
| CN112042240B (en) * | 2018-06-25 | 2022-01-11 | Oppo广东移动通信有限公司 | Method for configuring terminal equipment by network equipment, terminal equipment and network equipment |
| CN112423348B (en) * | 2019-08-23 | 2022-08-30 | 大唐移动通信设备有限公司 | Method, device and equipment for processing different network switching |
| CN110933669A (en) * | 2019-11-21 | 2020-03-27 | 北京长焜科技有限公司 | Method for quickly registering cross-RAT user |
| CN113923613B (en) * | 2021-10-14 | 2022-09-16 | 维沃移动通信有限公司 | Call processing method and device, electronic equipment and storage medium |
| CN115103347B (en) * | 2022-06-08 | 2024-05-14 | Oppo广东移动通信有限公司 | Tracking area updating method, device, electronic equipment and computer readable storage medium |
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