CN101568178B - User terminal detaching method, system and device - Google Patents
User terminal detaching method, system and device Download PDFInfo
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Abstract
The invention discloses a user terminal detaching method, which comprises that: when a first user mobile control management entity of a first radio access type RAT system registered by a user terminalin an idle state does not receive a periodic position update request sent by the user terminal before a first user reachable timer overtimes, the first user mobile control management entity sets a fi rst reachable state parameter value used for recording the update state of a periodic position area as nonupdated; the first user mobile control management entity checks the activation state of an idle state signaling optimization ISR function of the user terminal according to the context of the user terminal; and when the ISR function of the user terminal is activated and a second reachable stateparameter value used for recording update state of the periodic position area in a second user mobile control management entity of a second RAT system registered by the user terminal is not updated, the first user mobile control management entity detaches the user terminal.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of user terminal detaching method, system and device.
Background technology
Idle state signaling is optimized a kind of technology that (ISR, Idle State Signalling Reduction) technology is evolved packet system (EPS, the Evolved Packet System) proposition of 3GPP.When the ISR function activation of user terminal (UE); This UE is registered to universal terrestrial access network (UTRAN simultaneously; Universal Terrestrial Radio Access Network)/global system for mobile communications (GSM; GlobalSystem for Mobile communication)/the enhancing data transfer rate (EDGE of GSM evolution; Enhanced Data rates for GSM Evolution) on the user mobile control management entity (UEMCME) of Radio Access Network (GERAN, GSM/EDGE Radio Access Network) and evolved universal terrestrial radio access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) connecting system; Just be registered to service universal packet wireless business affair (GPRS simultaneously; General Packet Radio Service) on service node (SGSN, Serving GPRS Support Node) and the Mobility Management Entity (MME, Mobility Management Entity).
When UE is in Idle state; UE distributes to the route district (RA of UE at SGSN; Routing Area) and MME distribute in the process that moves in tracking area (TA, the Tracking Area) tabulation (List) of UE, need not to do the operation of general Routing Area Update or general tracing section updating.When the ISR of UE function activation, the user plane destination node of UE is positioned at gateway (Serving GW).
Prior art has provided some basic principles about ISR in the TS23.401v8.1.0 standard, comprising:
UE behind the principle 1:ISR function activation has the timer that periodically updates of two isolated operations, is respectively applied for to trigger individually to upgrade MME and SGSN.
Principle 2:SGSN and MME need a kind of mechanism to delete packet data protocol (PDP, Packet Data Protocol) context (Context) or EPS carrying (Bearers) for avoiding because of losing to periodically update.
Wherein, said lose to periodically update specifically be meant: when UE is positioned at E-UTRAN, just can not send periodically Routing Area Update request to SGSN, this moment, SGSN will lose periodically updating that UE initiates; Equally, when UE is positioned at UTRAN, just can not send periodically tracing section updating request to MME, MME will lose and periodically update this moment.
When the un-activation of the ISR of UE function, the SGSN of idle condition or MME if do not receive the periodicity Routing Area Update request that UE sends, will carry out attachment removal to UE at the appointed time; After if the ISR of UE activates; SGSN or MME also adopt original method; Promptly just UE is not carried out attachment removal if receive the periodicity Routing Area Update request that UE sends at the appointed time, will cause UE to lose the ISR function, promptly UE can't carry out the signaling optimization process of idle condition.
Under the wireless access type of principle 3:UE (RAT, the Radio Access Type) system periodically update timer expiry after, resident when this RAT system as UE, UE initiates to periodically update.
In sum, prior art need only to have pointed out a kind of mechanism to avoid user mobile control management entity to delete PDP Context or EPS Bearers because of losing to periodically update, yet prior art does not but point out how to address this problem.
Summary of the invention
The embodiment of the invention provides a kind of user terminal detaching method, system and device, deletes PDP Context or EPS Bearers in order to avoid user mobile control management entity because of losing to periodically update.
A kind of user terminal detaching method that the embodiment of the invention provides comprises:
First user mobile control management entity that is in idle condition in the first wireless access type RAT system of user terminal registration; When before first user's accessibility timer expiry, not receiving the periodic location update request that said user terminal sends, the first reachable state parameter value that said first user mobile control management entity will be used to write down the periodical location area update mode is not changed to and upgrades;
Said first user mobile control management entity is optimized the state of activation of ISR function according to the idle state signaling of the said user terminal of user terminal context check;
When the ISR of said user terminal function activates; And the second reachable state parameter value that is used to write down the periodical location area update mode in second user mobile control management entity in the 2nd RAT system of said user terminal registration is not when upgrading, and said first user mobile control management entity is to said user terminal attachment removal.
A kind of user terminal detaching method that the embodiment of the invention provides comprises:
When the user terminal that is arranged in the second wireless access type RAT system with the first wireless access type RAT system corresponding period 1 property location area updating timer expiry after, the first update mode parameter value that said user terminal will be used to the periodical location area update mode of the RAT system that writes down is not changed to and upgrades;
The idle state signaling of said user terminal inspection self is optimized the state of activation of ISR function;
When the ISR of said user terminal function activates; And also when not upgrading, the corresponding mobile management state of the said RAT system of said user terminal is set to attachment removal to the second update mode parameter value that is used to write down the periodical location area update mode under the 2nd RAT system in the said user terminal.
A kind of communication system that the embodiment of the invention provides comprises:
First user mobile control management entity; Be arranged in the first wireless access type RAT system; Be used for being in idle condition when first user mobile control management entity; And when before user's accessibility timer expiry of first user mobile control management entity, not receiving the periodic location update request that user terminal sends, the first reachable state parameter value that will be used to write down the periodical location area update mode is not changed to and upgrades;
Second user mobile control management entity; Be arranged in the 2nd RAT system; Be used to receive the request of the inquiry second reachable state parameter value that said first user mobile control management entity sends, and the second reachable state parameter value that will be used to write down the periodical location area update mode sends to said first user mobile control management entity;
Wherein, said first user mobile control management entity confirms that according to the user terminal context ISR function of said user terminal activates, and the said second reachable state parameter value is not when upgrading, to said user terminal attachment removal.
A kind of user mobile control management device that the embodiment of the invention provides is arranged in the first wireless access type RAT system, and this device comprises:
The state parameter value is provided with the unit; Be used for being in idle condition when this device; And; When user's accessibility timer expiry of this device was not received the periodic location update request that user terminal sends in the past, the first reachable state parameter value that will be used to write down the periodical location area update mode was not changed to and upgrades;
Inspection unit is used for the state of activation according to the idle state signaling optimization ISR function of the said user terminal of user terminal context check;
The attachment removal unit; Be used for activating when the ISR function of said user terminal; And the second reachable state parameter value that is used to write down the periodical location area update mode in the user mobile control management entity of the second wireless access type RAT system is not when upgrading, to said user terminal attachment removal.
A kind of user terminal that the embodiment of the invention provides is arranged in the second wireless access type RAT system, and this user terminal comprises:
The state parameter value is provided with the unit; Be used for this user terminal with the first wireless access type RAT system corresponding period 1 property location area updating timer expiry after, the first update mode parameter value that will be used to the periodical location area update mode of the RAT system that writes down is not changed to and upgrades;
Inspection unit is used to check that the idle state signaling of this user terminal optimizes the state of activation of ISR function;
The attachment removal unit; Be used for activating when said ISR function; And the second update mode parameter value that is used to write down the periodical location area update mode under the 2nd RAT system is not when upgrading, and the corresponding mobile management state of a said RAT system is set to attachment removal.
The embodiment of the invention; First user mobile control management entity that is in idle condition in the first wireless access type RAT system; When before first user's accessibility timer expiry, not receiving the periodic location update request that user terminal sends, the first reachable state parameter value that said first user mobile control management entity will be used to write down the periodical location area update mode is not changed to and upgrades; Said first user mobile control management entity is optimized the state of activation of ISR function according to the idle state signaling of the said user terminal of user terminal context check; When the ISR of said user terminal function activates; And the second reachable state parameter value that is used to write down the periodical location area update mode in second user mobile control management entity under the second wireless access type RAT system is not when upgrading; Said first user mobile control management entity is to said user terminal attachment removal, thereby avoids user mobile control management entity to delete PDPContext or EPS Bearers because of losing to periodically update.
Description of drawings
The overall procedure sketch map of a kind of user terminal detaching method that Fig. 1 provides for the embodiment of the invention;
The idiographic flow sketch map of a kind of user terminal detaching method that Fig. 2 provides for the embodiment of the invention;
The structural representation of a kind of communication system that Fig. 3 provides for the embodiment of the invention;
The structural representation of a kind of user mobile control management device that Fig. 4 provides for the embodiment of the invention;
The structural representation of a kind of user terminal that Fig. 5 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of UE de-adherence method, system and device, deletes PDP Context or EPS Bearers in order to avoid existing user mobile control management entity because of losing to periodically update.
User mobile control management entity in the embodiment of the invention is meant MME or SGSN.Because UE need be registered on SGSN and the MME; In order to express conveniently; Claim that one of them user mobile control management entity (following represent with UEMCME 1) is wireless access type (RAT; Radio Access Type) be the user mobile control management entity of RAT 1; For wireless access type is the user mobile control management entity of RAT 2, promptly when the UEMCME 1 of RAT 1 system was SGSN, then the UEMCME 2 of another RAT 2 systems was MME to another user mobile control management entity (following represent with UEMCME 2); When the UEMCME 1 of RAT 1 system was MME, the UEMCME 2 of another RAT 2 systems was SGSN.Be in the embodiment of the invention, RAT 1 and RAT 2 are access styles of different 3GPP system, if RAT is 1 corresponding UTRAN/GERAN, and RAT 2 corresponding E-UTRAN then, UEMCME 1 is SGSN, UEMCME 2 is MME; If RAT1 is corresponding E-UTRAN, RAT 2 corresponding UTRAN/GERAN then, UEMCME 1 is MME, UEMCME 2 is SGSN.
In the embodiment of the invention, express for ease, " tracing section updating (Tracking Area Update) " and " Routing Area Update (Routing Area Update) " is referred to as " location area updating ".
In the embodiment of the invention, the R8 system is meant the 3GPP system of Release 8 versions and later version (like Release 9) thereof; Non-R8 system is meant Release 7 versions and the 3GPP system of version (like Release 6) in the past thereof.
Connection status in the embodiment of the invention is meant being connected of mobile management and idle condition with idle condition.UE or user mobile control management entity are in connection status, are meant that UE and user mobile control management entity set up the signaling of Non-Access Stratum and be connected.UE or user mobile control management entity are in idle condition, and being meant between UE and the user mobile control management entity does not have the signaling of Non-Access Stratum to be connected, or the signaling of Non-Access Stratum connects and is released.If not specialize, the UE in the instance of the present invention all is meant the UE that the ISR function has been activated.
How specify the embodiment of the invention below in conjunction with accompanying drawing realizes.
Referring to Fig. 1, the group method of a kind of user terminal attachment removal that the embodiment of the invention provides comprises step:
S101, first user mobile control management entity that is in idle condition in the first wireless access type RAT system of user terminal registration; When first user's accessibility timer expiry was not received the periodic location update request that said user terminal sends in the past, the first reachable state parameter value that said first user mobile control management entity will be provided for writing down the periodical location area update mode in advance was not changed to and upgrades.
S102, said first user mobile control management entity are optimized the state of activation of ISR function according to the idle state signaling of the said user terminal of self preserving of user terminal context check.
S103, activate when the ISR of said user terminal function; And also when not upgrading, said first user mobile control management entity is to said user terminal attachment removal for the second reachable state parameter value that being used to of being provided with in advance in second user mobile control management entity under the second wireless access type RAT system of said user terminal registration write down the periodical location area update mode.
Be the periodical location area replacement problem after the ISR activation that solves the UE that exists in the prior art; The embodiment of the invention proposes: the state parameter that is used to write down the periodical location area update mode that inside is set for UE under the RAT system of each 3GPP and user mobile control management entity in the R8 system; The state parameter that wherein UE is inner is used to write down the periodical location area update mode representes with ISRUPD, and the reachable state parameter that user mobile control management entity is inner is used to write down the UE of periodical location area update mode is represented with ISRRCBL.UTRAN/GERAN is designated as a 3GPP RAT; With E-UTRAN as another RAT; Each UE of R8 system has two ISRUPD corresponding to different RAT like this, is made as the first update mode parameter (representing with RAT1-ISRUPD) and the second update mode parameter (representing with RAT2-ISRUPD) respectively; For the RAT of a UE, UEMCME has only an ISRRCBL; Correspond to same UE, the UEMCME under two different RAT is respectively arranged with the first reachable state parameter (representing with RAT1-ISRRCBL) and the second reachable state parameter (representing with RAT2-ISRRCBL).The state parameter of the ISRUPD that two RAT of UE independent maintenance are corresponding, himself the state parameter of ISRRCBL of UEMCME1 and UEMCME2 independent maintenance.The state parameter value of said ISRUPD and ISRRCBL comprises two kinds: upgrade (UPDATED) and do not upgrade (NOTUPDATED).
When UE and UEMCME had Non-Access Stratum (NAS, Non-Access Stratum) signaling to connect, promptly UE was when UEMCME is in connection status therewith, and UE and UEMCME are provided with the ISRUPD of corresponding RAT respectively and the value of ISRRCBL is UPDATED; When UE and UEMCME when connection status gets into idle condition, UE and UEMCME are provided with the ISRUPD of corresponding RAT respectively and the value of ISRRCBL is UPDATED; When the UE under the RAT system and UEMCME are in idle condition, and execute when getting back to idle condition after periodical location area upgrades operation as UE, then UE is UPDATED with the value that UEMCME is provided with corresponding ISRUPD of this RAT system and ISRRCBL respectively.
UE and UEMCME under a RAT system are in idle condition; And behind periodical location area timer and user's accessibility timer expiry; Because of a variety of causes (entering does not have the wireless signal region covered like UE); Cause not having execution cycle property location area updating process, then UE is NOTUPDATED with the value that UEMCME is provided with corresponding ISRUPD of this RAT system and ISRRCBL respectively.
For avoiding in the traditional 2G/3G system, behind the user's accessibility timer expiry among the UEMCME, UEMCME does not receive the periodic location update request, and then UEMCME initiates UE attachment removal process and need not to notify UE, and the embodiment of the invention proposes:
Behind the user's accessibility timer expiry among the UEMCME 1, UEMCME 1 does not receive the periodic location update request that UE sends, and the state of UEMCME 1 its RAT1-ISRRCBL is set to NOTUPDATED.Whether UEMCME 1 activates through the ISR function of the UE Context inspection UE of its preservation, comprises following two kinds of situation:
Situation one: if UEMCME 1 finds that the UEMCME 2 under another RAT system has activated the ISR function for UE; Then restart the user's accessibility timer of self; And UEMCME 1 obtains the address of UEMCME 2 through UE Context, and then according to this address, UEMCME 1 is to the ISRRCBL state of UEMCME 2 inquiry UE in UEMCME 2; And indication RAT1-ISRRCBL state is NOTUPDATED in inquiry request message; UEMCME 2 is according to the RAT2-ISRRCBL of its preservation, and the state to UEMCME1 responds its RAT2-ISRRCBL comprises following three kinds of situation this moment:
It is NOTUPDATED that situation a, UEMCME 2 respond the RAT2-ISRRCBL state of UE under RAT2, and then UEMCME 1 initiates UE attachment removal process and do not notify UE; Simultaneously, UEMCME 2 is after responding UEMCME 1, and UEMCME 2 also initiates UE attachment removal process and do not notify UE.
It is UPDATED that situation b, UEMCME2 respond the RAT2-ISRRCBL state of UE under RAT 2, and then its RAT1-ISRRCBL state is set is NOTUPDATED to UEMCME 1.
Situation c, take place in order to prevent competitive situations; Be among the UEMCME 1 user's accessibility timer expiry the time, when UEMCME 1 received the state parameter value request of RAT1-ISRRCBL of the inquiry UE that UEMCME 2 sends, UEMCME 1 did not reply the state parameter value request of the RAT1-ISRRCBL of the inquiry UE that UEMCME 2 sends immediately; But reply again after postponing a period of time; In the time that is postponed, whether UEMCME 1 judges to the UE attachment removal earlier, disposes and replys.
Situation two: if UEMCME 1 finds the ISR function of UE by deexcitation or un-activation, then UEMCME 1 initiates UE attachment removal process and does not notify UE.
About with the corresponding end side of network side, the embodiment of the invention proposes:
Reside in RAT 2 systems if UE is current; When UE the periodical location area under the RAT1 upgrade timer (RAT1-PTimer) overtime after; UE can not send the periodic location update request to the user's mobile management control entities UEMCME under the RAT1 1 because of the current RAT2 that resides in; The state of its RAT1-ISRUPD of UE is set to NOTUPDATED, and whether UE activates through the ISR function of the context check UE that self preserves, comprises following two kinds of situation this moment:
Situation one, if UE finds its ISR function to be activated, then restart its periodical location area and upgrade timer RAT1-PTimer, and the value of the RAT2-ISRUPD under current resident RAT 2 systems of inquiry UE, comprise following three kinds of situation this moment:
The value of RAT2-ISRUPD under the RAT 2 of situation a, UE is NOTUPDATED, then representes UE by the user mobile control management entity attachment removal under the RAT 2, and UE also its mobility management states under RAT 1 system is set to attachment removal and informing network not.
The value of situation b, the RAT2-ISRUPD of UE under RAT 2 is UPDATED, and then its RAT1-ISRUPD state is set is NOTUPDATED to UE.
Situation c, take place in order to prevent competitive situations; Be to upgrade timers when simultaneously overtime with the corresponding periodical location areas of two RAT among the UE; UE does not inquire about the value of the RAT2-ISRUPD under current resident RAT 2 systems of UE immediately, but postpones to reexamine after a period of time.
Because after the corresponding timer of two RAT among the UE is simultaneously overtime; UE can only be in current RAT property of following execution cycle location area updating process; Thereby upgraded the corresponding ISRUPD value of current RAT system; Therefore, above-mentioned UE postpones the value that a period of time inquires about the RAT2-ISRUPD under current resident RAT 2 systems of UE again, can guarantee that UE accomplishes the corresponding ISRUPD value of RAT system of upgrading current place.
Situation two, if UE finds its ISR function by deexcitation or un-activation, then UE initiates the attachment removal process under RAT 1 system and does not notify UEMCME 1.
In addition; The embodiment of the invention also proposes: when the value of the RAT1-ISRUPD of UE is NOTUPDATED; When the UE of idle condition gets into the 3GPP connecting system of RAT 1; At first judge whether to set up the process need startup that the Non-Access Stratum signaling connects, if UE has the process that the Non-Access Stratum signaling connects of setting up that needs startup, like the location area updating process or the Service Request process of synchronous (ISR Synch) type of ISR; Then UE only need initiate to set up the process that the Non-Access Stratum signaling connects, and need not initiate the periodical location area renewal process; Otherwise when need not to initiate any one process of setting up the connection of Non-Access Stratum signaling as if UE, then UE need initiate the periodical location area renewal process.Process result is to guarantee that the process of setting up the connection of Non-Access Stratum signaling at first obtains carrying out like this, just has the function that the periodical location area renewal process is had because set up the process of Non-Access Stratum signaling connection itself, promptly lets network learn the accessibility of UE.
For example, referring to Fig. 2, a kind of concrete periodic location region updating method that the embodiment of the invention provides comprises step:
Step 1:UE sets up the NAS signaling with UEMCME 1 and is connected under RAT 1 system.
The value of its RAT1-ISRUPD of step 2:UE is set to UPDATED, and the value of the RAT1-ISRRCBL that UEMCME 1 this UE is corresponding is set to UPDATED.
Step 3:UE is connected with the NAS signaling of UEMCME 1 and is released, and UE and UEMCME 1 get into idle condition.
The value of its RAT1-ISRUPD of step 4:UE is set to UPDATED, and the value with the corresponding RAT1-ISRRCBL of this UE of UEMCME 1 self is set to UPDATED; And UE start-up period property location area updating timer RAT1-PTimer, UEMCME1 postpone RAT1-DelayTime and start user's accessibility timer RAT1-RTimer after the time.Wherein, the timing value of RAT1-PTimer and RAT1-RTimer is identical.
Step 5:UE gets in RAT 2 systems, and sets up the NAS signaling through general location area updating process with UEMCME 2 under RAT 2 systems and be connected.
Step 6:UE and UEMCME 2 value of RAT2-ISRUPD and RAT2-ISRRCBL respectively are set to UPDATED.
Step 7:UEMCME 2 and the UEMCME 1 common ISR function that activates UE accept its ISR function of message informing UE through location area updating and are activated.
Step 8:UE is connected with the NAS signaling of UEMCME 2 and is released, and UE and UEMCME 2 get into idle conditions.
The periodical location area that step 9:UE starts RAT2 (being current RAT) upgrades timer RAT2-PTimer, and the value of the RAT2-ISRUPD of self is set to UPDATED; Start user's accessibility timer RAT2-RTimer behind the RAT2-DelayTime of UEMCME2 time-delay simultaneously, and the value of the RAT2-ISRRCBL of self is set to UPDATED.
Wherein, the timing value of RAT2-PTimer and RAT2-RTimer is identical.
Step 10: if UE continues to reside under the RAT2 system; Because UE can not directly carry out the periodical location area renewal process under RAT 1 system; It is overtime respectively that the periodical location area of the last operation of UE upgrades user's accessibility timer RAT1-RTimer of operation on timer RAT1-PTimer and the UEMCME 1, at this moment UE and UEMCME 1 respectively the state of RAT1-ISRUPD and RAT1-ISRRCBL be set to NOTUPDATED.
Step 11:UEMCME 1 finds that through the UE Context of its preservation the UEMCME 2 under another RAT 2 systems has activated the ISR function for UE; Then restart RAT1-RTimer; And UEMCME 1 obtains the address of UEMCME 2 through UE Context, and sends ISR location area updating state request (ISR Update State Request) message according to this address to UEMCME 2, and this message can include the value of the RAT1-ISRRCBL of UEMCME 1; Be NOTUPDATED; This message also can comprise the sign of UE, like IMSI International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity) etc.
Step 12:UEMCME 2 sends ISR location area updating condition responsive (ISRUpdate State Response) message to UEMCME 1, and this message includes among the UEMCME 2 value with the corresponding RAT2-ISRRCBL of said UE, i.e. UPDATED.
Step 13:, be NOTUPDATED so UEMCME 1 is provided with the value of its RAT1-ISRRCBL because the value of RAT2-ISRRCBL is UPDATED.
If the value of RAT2-ISRRCBL is NOTUPDATED, then UEMCME1 initiates the attachment removal process to UE.
Step 14:UE learns that through the context of its preservation its ISR function activates; Then restart its RAT1-PTimer; And the value of the RAT2-ISRUPD under current resident RAT 2 systems of inquiry UE; And the value of RAT2-ISRUPD is UPDATED, and then the value of its RAT1-ISRUPD is set is NOTUPDATED to UE.
Step 15: the UE of idle condition moves back to RAT 1 system; Still move to the lane place of originally being registered like UE; Need not start this moment any is not the process of setting up the connection of Non-Access Stratum signaling that periodical location area upgrades; And PDP Context or the EPS Bearer of UE do not do any modification, and then UE need not make general location area updating or do ISR synchronization position district and upgrade.
Step 16:UE finds that the state of its RAT1-ISRUPD is NOTUPDATED, and UE sends periodical location area to UEMCME 1 and upgrades request.
Step 17:UEMCME 1 receives the periodical location area renewal request that UE sends; UE and UEMCME 1 get into connection status; Its RAT1-ISRUPD is set respectively for UE and UEMCME 1 and the RAT1-ISRRCBL state is UPDATED, and stops RAT1-PTimer and RAT1-RTimer respectively.
Can comprise following periodical location area renewal process in the step 4:
When timer RAT1-PTimer is overtime; UE makes periodic location area updating to UEMCME 1; And then the entering idle condition, at this moment, UE and UEMCME 1 state of RAT1-ISRUPD and RAT1-ISRRCBL respectively are set to UPDATED; UE restarts timer RAT1-PTimer, restarts RAT1-RTimer behind the UEMCME 1 time-delay RAT1-DelayTime.
Because embodiment of the invention RAT1-RTimer is set to identical value with the timing value of RAT1-PTimer; But always a period of time in evening starts RAT1-RTimer to user mobile control management entity; Thereby guarantee that when UE sent the periodical location area update inquiry information, user mobile control management entity was always received the periodical location area update inquiry information that UE sends before RAT1-RTimer is overtime.
When user mobile control management entity got into idle condition from connection status, the occurrence of the delay time RAT1-DelayTime of delay start user accessibility timer can be set by operator.Default value can be the difference of the periodicity Routing Area Update timer of the user's accessibility timer of SGSN in traditional 2G/3G system and UE.
More overtime than the late RAT1-DelayTime of RAT1-PTimer in order to guarantee RAT1-RTimer, the embodiment of the invention provides following two kinds of implementation methods:
First kind: realize through timer.
When UEMCME 1 when connection status gets into idle condition; UEMCME1 starts a back off timer (RAT1-DelayTimer); Its timing value is RAT1-DelayTime, and after RAT1-DelayTimer was overtime, UEMCME1 restarted RAT1-RTimer; When follow-up overtime needs restart RAT1-Timer, use identical timing value.
Second kind: the timing value when starting through the first time that changes RAT1-RTimer is realized.
If the timing value of RAT1-RTimer and RAT1-PTimer is RAT1-Time; When UEMCME1 when connection status gets into idle condition; UEMCME1 starts (start for the first time) RAT1-RTimer immediately, but its timing value be set to RAT1-Time and RAT1-DelayTime with (being RAT1-Time+RAT1-DelayTime), still after RAT1-RTimer is overtime; When UEMCME 1 started RAT1-RTimer once more, then the timing value according to RAT1-Time carried out timing.That is to say; After UEMCME 1 got into idle condition from connection status, during the RAT1-Timer of the startup first time, the timing value of use was (RAT1-Time+RAT1-DelayTime); When follow-up overtime needs restarted RAT1-Timer, the timing value that uses was RAT1-Time.
In traditional 2G/3G system, when another route district of UE entering, and after carrying out general Routing Area Update process, UE and another SGSN have got into connection status, and this moment, UE should stop primitive period property Routing Area Update timer (RAT1-PTimer).But for the situation that the ISR of UE activates, this routing region updating method is no longer suitable, and the embodiment of the invention proposes:
When UE gets into another different RAT (representing with RAT 2) system from a RAT (representing with RAT 1) system; And when getting into connection status; Periodical location area under RAT 1 among the UE (former RAT) system upgrades timer RAT1-PTimer and continues operation, and does not stop; Equally, the user's accessibility timer RAT1-RTimer among the UEMCME 1 also continues operation, and does not stop.
When the band of position of UE entering with the RAT1 same type; And carry out the general position district and upgrade when afterwards getting into idle condition; UE start-up period property location area updating timer RAT1-PTimer; Start user's accessibility behind the new user mobile control management entity time-delay RAT1-DelayTime and regularly upgrade timer RAT1-RTimer, and, the timer value that this RAT1-RTimer adopts new user mobile control management entity to distribute.
To sum up, behind the ISR of UE function activation, and UE is when all being in idle condition in RAT1 system and RAT2 system, and UE has moved two periodical location areas and upgraded timer RAT1-PTimer and RAT2-PTimer; Simultaneously, UEMCME 1 has moved RAT1-RTimer and RAT2-RTimer respectively with UEMCME 2.
Therefore, get into after the said step 5, the periodical location area among the UE upgrades timer RAT1-PTimer and continues operation, and does not stop; Same, the user's accessibility timer RAT1-RTimer among the UEMCME 1 continues operation, and does not stop.
Step 9 can comprise following periodical location area renewal process:
All there is not the NAS signaling to be connected between UE and UEMCME 1 and the UEMCME 2; Therefore the periodical location area of two RAT of UE renewal timer RAT1-PTimer and RAT2-PTimer are continuing operation; The RAT1-ISRUPD of UE and the state of RAT2-ISRUPD are UPDATED; The RAT 1-ISRRCBL of UEMCME1 is UPDATED, and the RAT2-ISRRCBL of UEMCME 2 is UPDATED.
If the access technology that RAT 2 systems are adopted is Release 8 (not comprising Release a 8) 3GPP access technology before; Then when UE after getting into connection status under RAT 2 systems; The periodical location area that UE stops under RAT 1 system upgrades timer RAT1-PTimer, and deletes this periodical location area and upgrade timer RAT1-PTimer or identify this periodical location area that to upgrade timer RAT1-PTimer invalid.
Deleted when UE is identified as attachment removal or its context (Context) under a RAT system, then to upgrade timer invalid or deleted for the periodical location area of UE under this RAT system; When user mobile control management entity is designated attachment removal or deletion UE Context with UE, it is invalid or deleted that user's accessibility that then this UE is corresponding in this user mobile control management entity is regularly upgraded timer.
For example, when UE sign its under the E-UTRAN system by attachment removal, then the periodicity tracing section updating timer of this UE under the E-UTRAN system deleted or be identified as invalid; This UE of sign is that the Context of attachment removal or this UE is deleted in MME, and it is invalid that user's accessibility timer that then this UE is corresponding is deleted or is identified as.
In the tracing section updating that in the TS23.401v8.1.0 standard, defines (TAU) process; The ISR function that MME accepts (Tracking Area Update Accept) " ISR " parametric representation UE that message comprised at the tracing section updating that sends to UE has been activated; Promptly indicate its temporary transient mobile user identification (P-TMSI that divides into groups of UE; Packet Temporary Mobile Station Identity) and Routing Area Identifier (RAI; RoutingArea Identity) still keep being registered on the network, and still effective in UE.Because the UE that prior art proposes after the ISR of UE activates has the timer that periodically updates of two isolated operations to be respectively applied for triggering renewal MME and SGSN individually.Therefore, the embodiment of the invention proposes:
After UE receives that in the R8 system location area updating of the user mobile control management entity transmission under current RAT (representing with the RAT 2) system is accepted message; If the periodical location area of UE under another RAT (representing with RAT 1) system upgrades timer effectively (it is invalid promptly not deleted or be designated); And; If this timer has started operation; Then continue operation and restart after need not to reset again, the timing value of the timer under the promptly current RAT system is only controlled the timer under the current RAT system, and irrelevant with the timer under another RAT system.When UE got into idle condition, the user mobile control management entity of UE and current RAT started periodical location area renewal timer and the delayed startup user accessibility timer under the current RAT system respectively.That is to say; After UE receives that in the R8 system location area updating of the user mobile control management entity transmission of RAT 2 is accepted message; If it is effective that the periodical location area of UE under RAT 1 upgrades timer RAT1-PTimer; And if this timer RAT1-PTimer has started operation, then continuation moves and restarts after need not to reset again; And when UE got into idle condition under RAT 2 systems, the periodical location area that UE starts under the RAT 2 upgraded timer, the user's accessibility timer under the UEMCME 2 delayed startup RAT 2.
Introduce system and device that the embodiment of the invention provides below.
Referring to Fig. 3, a kind of communication system that the embodiment of the invention provides comprises:
First user mobile control management entity 31; Be arranged in the first wireless access type RAT system; Be used for when self being in idle condition; And, when the user's accessibility timer expiry of self was not received the periodic location update request that user terminal sends in the past, the first reachable state parameter value that is provided for writing down the periodical location area update mode in advance is not changed to upgrades; And; When the ISR of said user terminal function has activated; Second user mobile control management entity 32 in the second wireless access type RAT system sends that said second user mobile control management entity of inquiry is provided with in advance is used to write down the request of the second reachable state parameter value of periodical location area update mode; And receive the said second reachable state parameter value that said second user mobile control management entity is sent; When this second reachable state parameter value when not upgrading, to said user terminal attachment removal.
Said second user mobile control management entity 32; Be used to receive the request of the said second reachable state parameter value of inquiry that said first user mobile control management entity 31 sends, and the said second reachable state parameter value is sent to said first user mobile control management entity 31.
Referring to Fig. 4, a kind of user mobile control management device that the embodiment of the invention provides is arranged in the first wireless access type RAT system, and this device comprises:
The state parameter value is provided with unit 41; Be used for when self being in idle condition; And; When the user's accessibility timer expiry of self was not received the periodic location update request that user terminal sends in the past, the first reachable state parameter value that is provided for writing down the periodical location area update mode in advance is not changed to upgrades, and trigger inspection unit 42.
The user mobile control management device that the embodiment of the invention provides also comprises:
Timer restart moving cell 44 is used for when self user's accessibility timer expiry, if the ISR function of said user terminal activates, then restarts the user's accessibility timer of self.
Referring to Fig. 5, a kind of user terminal that the embodiment of the invention provides is arranged in the second wireless access type RAT system, and this user terminal comprises:
The state parameter value is provided with unit 51; Be used for self with the first wireless access type RAT system corresponding period 1 property location area updating timer expiry after; The first update mode parameter value of the periodical location area update mode that is used to the RAT system that writes down that is provided with in advance is not changed to renewal, and triggers inspection unit 52.
Inspection unit 52 when being used to receive the state parameter value triggering of unit 51 being set, checks that the idle state signaling of self optimizes the state of activation of ISR function.
Attachment removal unit 53; Be used for activating when said ISR function; And also when not upgrading, the mobile management state of said RAT system correspondence is set to attachment removal to the second update mode parameter value that is used to write down the periodical location area update mode under the 2nd RAT system that is provided with in advance.
The user terminal that the embodiment of the invention provides also comprises:
Timer restart moving cell 54 is used for when self period 1 property location area updating timer expiry, if the ISR function of said user terminal activates, then restarts the period 1 property location area updating timer of self.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (34)
1. a user terminal detaching method is characterized in that, this method comprises:
First user mobile control management entity that is in idle condition in the first wireless access type RAT system of user terminal registration; When before first user's accessibility timer expiry, not receiving the periodic location update request that said user terminal sends, the first reachable state parameter value that said first user mobile control management entity will be used to write down the periodical location area update mode is not changed to and upgrades;
Said first user mobile control management entity is optimized the state of activation of ISR function according to the idle state signaling of the said user terminal of user terminal context check;
When the ISR of said user terminal function activates; And the second reachable state parameter value that is used to write down the periodical location area update mode in second user mobile control management entity in the 2nd RAT system of said user terminal registration is not when upgrading, and said first user mobile control management entity is to said user terminal attachment removal.
2. method according to claim 1 is characterized in that, during when the ISR of said user terminal function un-activation or by deexcitation, said first user mobile control management entity is to said user terminal attachment removal.
3. method according to claim 1 is characterized in that, when the ISR function of confirming said user terminal has activated, restarts said first user's accessibility timer.
4. method according to claim 1; It is characterized in that; When the ISR of said user terminal function activates, and the said second reachable state parameter value is when upgrading, and said first user mobile control management entity continues to keep the said first reachable state parameter value to be renewal.
5. method according to claim 1 is characterized in that, the step that said first user mobile control management entity obtains the said second reachable state parameter value comprises:
Said first user mobile control management entity obtains the address of said second user mobile control management entity through the context of said user terminal; And, send the request of the said second reachable state parameter value of inquiry to said second user mobile control management entity according to this address;
Said first user mobile control management entity receives the response message that said second user mobile control management entity is sent, and therefrom obtains the said second reachable state parameter value.
6. method according to claim 5 is characterized in that, comprises the said first reachable state parameter value in the described request.
7. method according to claim 5; It is characterized in that; When said first user mobile control management entity is sent described request; If receive the request of the said first reachable state parameter value of inquiry that said second user mobile control management entity sends, then postpone a period of time after, self the first reachable state parameter value is sent to said second user mobile control management entity.
8. method according to claim 1 is characterized in that, when said first user mobile control management entity was in connection status, said first user mobile control management entity was provided with the first reachable state parameter value of self for upgrading;
When said second user mobile control management entity was in connection status, said second user mobile control management entity was provided with the second reachable state parameter value of self for upgrading.
9. method according to claim 1 is characterized in that, when said first user mobile control management entity when connection status gets into idle condition, said first user mobile control management entity is provided with the first reachable state parameter value of self for upgrading;
When said second user mobile control management entity when connection status gets into idle condition, said second user mobile control management entity is provided with the second reachable state parameter value of self for upgrading.
10. method according to claim 1; It is characterized in that; User terminal and said first user mobile control management entity in a said RAT system are in idle condition; And said user terminal executes when getting back to idle condition after the periodical location area renewal is operated, and said first user mobile control management entity is provided with the first reachable state parameter value of self for upgrading;
User terminal and said second user mobile control management entity in said the 2nd RAT system are in idle condition; And said user terminal executes when getting back to idle condition after the periodical location area renewal is operated, and said second user mobile control management entity is provided with the second reachable state parameter value of self for upgrading.
11. method according to claim 10 is characterized in that, the periodical location area method for updating in the said RAT system comprises:
Said user terminal starts period 1 property location area updating timer; And; After postponing a period of time, said first user mobile control management entity starts first user's accessibility timer; Wherein, said first user's accessibility timer is identical with the timing value of said period 1 property location area updating timer;
Through said period 1 property location area updating timer and said first user's accessibility timer control property performance period location area updating.
12. method according to claim 11 is characterized in that, the step that starts first user's accessibility timer after said delay a period of time comprises:
Start the back off timer that timing value is said a period of time, when said back off timer is overtime, start said first user's accessibility timer.
13. method according to claim 10 is characterized in that, the periodical location area method for updating in the said RAT system comprises:
Said user terminal starts period 1 property location area updating timer; And; Said first user mobile control management entity starts first user's accessibility timer, and the timing value of this first user accessibility timer is greater than the timing value of said period 1 property location area updating timer;
For the first time overtime when said first user's accessibility timer, the timing value that said first user's accessibility timer is set is identical with the timing value of said period 1 property location area updating timer;
Through said period 1 property location area updating timer and said first user's accessibility timer control property performance period location area updating.
14., it is characterized in that when said user terminal got in the 2nd RAT system, said period 1 property location area updating timer and said first user's accessibility timer continued operation according to claim 11,12 or 13 described methods.
15. according to claim 11,12 or 13 described methods; It is characterized in that; When said user terminal gets in the 2nd later RAT system of Release 8 versions or Release 8 versions; And receive when location area updating that second user mobile control management entity in said the 2nd RAT system is sent is accepted message; If said period 1 property location area updating timer is effective, and said period 1 property location area updating timer has started operation, then said period 1 property location area updating timer continuation operation.
16. a user terminal detaching method is characterized in that, this method comprises:
When the user terminal that is arranged in the second wireless access type RAT system with the first wireless access type RAT system corresponding period 1 property location area updating timer expiry after, the first update mode parameter value that said user terminal will be used to the periodical location area update mode of the RAT system that writes down is not changed to and upgrades;
The idle state signaling of said user terminal inspection self is optimized the state of activation of ISR function;
When the ISR of said user terminal function activates; And also when not upgrading, the corresponding mobile management state of the said RAT system of said user terminal is set to attachment removal to the second update mode parameter value that is used to write down the periodical location area update mode under the 2nd RAT system in the said user terminal.
17. method according to claim 16 is characterized in that, during when the ISR of said user terminal function un-activation or by deexcitation, the corresponding mobile management state of the said RAT system of said user terminal is set to attachment removal.
18. method according to claim 16 is characterized in that, when the ISR function of confirming said user terminal has activated, restarts said period 1 property location area updating timer.
19. method according to claim 16 is characterized in that, when the ISR of said user terminal function activates, and the said second update mode parameter value is when upgrading, and said user terminal continues to keep the said first update mode parameter value to be renewal.
20. method according to claim 16; It is characterized in that; In said period 1 property location area updating timer expiry; If also overtime with said the 2nd RAT system corresponding property second round location area updating timer in the said user terminal, after then said user terminal postpones a period of time, check the value of the said second update mode parameter.
21. method according to claim 16 is characterized in that, when said user terminal is in idle condition; And; When said user terminal got in the said RAT system, said user terminal need to judge whether the process that the Non-Access Stratum signaling connects of setting up of startup, if; Then start and set up the process that the Non-Access Stratum signaling connects, and start-up period property location area updating process not; Otherwise, start-up period property location area updating process.
22. method according to claim 16 is characterized in that, when said user terminal was in connection status, said user terminal was provided with the value of the said second update mode parameter for upgrading;
Resident in the said first wireless access type RAT system when said user terminal, and when being in connection status, said user terminal is provided with the value of the said first update mode parameter for upgrading.
23. method according to claim 16 is characterized in that, when said user terminal when connection status gets into idle condition, said user terminal is provided with the value of the said second update mode parameter for upgrading;
Resident in the said first wireless access type RAT system when said user terminal, and when connection status got into idle condition, said user terminal was provided with the value of the said first update mode parameter for upgrading.
24. method according to claim 16; It is characterized in that, when said user terminal is in idle condition, and; Said user terminal executes when getting back to idle condition after the periodical location area renewal is operated, and said user terminal is provided with the value of the said second update mode parameter for upgrading;
When said user terminal resident in the said first wireless access type RAT system and be in idle condition; And; Said user terminal executes when getting back to idle condition after the periodical location area renewal is operated, and said user terminal is provided with the value of the said first update mode parameter for upgrading.
25. method according to claim 24 is characterized in that, the periodical location area method for updating in said the 2nd RAT system comprises:
Said user terminal starts property second round location area updating timer; And; After postponing a period of time, second user mobile control management entity starts second user's accessibility timer; Wherein, said second user's accessibility timer is identical with the timing value of said property second round location area updating timer;
Through said property second round location area updating timer and said second user's accessibility timer control property performance period location area updating.
26. method according to claim 25 is characterized in that, the step that starts second user's accessibility timer after said delay a period of time comprises:
Start the back off timer that timing value is said a period of time, when said back off timer is overtime, start said second user's accessibility timer.
27. method according to claim 24 is characterized in that, the periodical location area method for updating in said the 2nd RAT system comprises:
Said user terminal starts property second round location area updating timer; And; Second user mobile control management entity starts second user's accessibility timer, and the timing value of this second user accessibility timer is greater than the timing value of said property second round location area updating timer;
For the first time overtime when said second user's accessibility timer, the timing value that said second user's accessibility timer is set is identical with the timing value of said property second round location area updating timer;
Through said property second round location area updating timer and said second user's accessibility timer control property performance period location area updating.
28., it is characterized in that when said user terminal got in the RAT system, said property second round location area updating timer and said second user's accessibility timer continued operation according to claim 25,26 or 27 described methods.
29. according to claim 25,26 or 27 described methods; It is characterized in that; When said user terminal gets in the later RAT system of Release 8 versions or Release 8 versions; And receive when location area updating that first user mobile control management entity in the said RAT system is sent is accepted message; If said property second round location area updating timer is effective, and said property second round location area updating timer has started operation, then said property second round location area updating timer continuation operation.
30. a communication system is characterized in that, this system comprises:
First user mobile control management entity; Be arranged in the first wireless access type RAT system; Be used for being in idle condition when first user mobile control management entity; And when before user's accessibility timer expiry of first user mobile control management entity, not receiving the periodic location update request that user terminal sends, the first reachable state parameter value that will be used to write down the periodical location area update mode is not changed to and upgrades;
Second user mobile control management entity; Be arranged in the 2nd RAT system; Be used to receive the request of the inquiry second reachable state parameter value that said first user mobile control management entity sends, and the second reachable state parameter value that will be used to write down the periodical location area update mode sends to said first user mobile control management entity;
Wherein, said first user mobile control management entity confirms that according to the user terminal context ISR function of said user terminal activates, and the said second reachable state parameter value is not when upgrading, to said user terminal attachment removal.
31. a user mobile control management device is arranged in the first wireless access type RAT system, it is characterized in that this device comprises:
The state parameter value is provided with the unit; Be used for being in idle condition when this device; And; When user's accessibility timer expiry of this device was not received the periodic location update request that user terminal sends in the past, the first reachable state parameter value that will be used to write down the periodical location area update mode was not changed to and upgrades;
Inspection unit is used for the state of activation according to the idle state signaling optimization ISR function of the said user terminal of user terminal context check;
The attachment removal unit; Be used for activating when the ISR function of said user terminal; And the second reachable state parameter value that is used to write down the periodical location area update mode in the user mobile control management entity of the second wireless access type RAT system is not when upgrading, to said user terminal attachment removal.
32. device according to claim 31 is characterized in that, this device also comprises:
The timer restart moving cell when being used for the user's accessibility timer expiry when this device, if the ISR function of said user terminal activates, then restarts user's accessibility timer of this device.
33. a user terminal is arranged in the second wireless access type RAT system, it is characterized in that this user terminal comprises:
The state parameter value is provided with the unit; Be used for this user terminal with the first wireless access type RAT system corresponding period 1 property location area updating timer expiry after, the first update mode parameter value that will be used to the periodical location area update mode of the RAT system that writes down is not changed to and upgrades;
Inspection unit is used to check that the idle state signaling of this user terminal optimizes the state of activation of ISR function;
The attachment removal unit; Be used for activating when said ISR function; And the second update mode parameter value that is used to write down the periodical location area update mode under the 2nd RAT system is not when upgrading, and the corresponding mobile management state of a said RAT system is set to attachment removal.
34. user terminal according to claim 33 is characterized in that, this user terminal also comprises:
The timer restart moving cell when being used for the period 1 property location area updating timer expiry when this user terminal, if the ISR function of said user terminal activates, then restarts the period 1 property location area updating timer of this user terminal.
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| CN102056204B (en) * | 2009-10-30 | 2013-11-06 | 中兴通讯股份有限公司 | Method and system for realizing logout of user terminal |
| WO2011097813A1 (en) * | 2010-02-11 | 2011-08-18 | 华为技术有限公司 | Method for deactivating the idle mode signaling reduction (isr), method for modifying the bearer parameters and network system |
| CN102413588A (en) * | 2010-09-21 | 2012-04-11 | 中兴通讯股份有限公司 | Method and system for releasing PDN (packet data network) connection |
| CN102724771A (en) * | 2011-03-29 | 2012-10-10 | 中兴通讯股份有限公司 | User detachment method and system |
| CN102843765B (en) * | 2011-06-20 | 2017-11-28 | 中兴通讯股份有限公司 | A kind of methods, devices and systems for determining the SOT state of termination |
| WO2013063764A1 (en) * | 2011-11-01 | 2013-05-10 | 华为技术有限公司 | Separation processing method and serving gateway |
| CN102577578B (en) * | 2011-11-30 | 2014-07-30 | 华为技术有限公司 | Method and apparatus for de-activating user load |
| CN102546465A (en) * | 2011-12-22 | 2012-07-04 | 苏州阔地网络科技有限公司 | Method and device for removing failed connection |
| EP3624512B1 (en) * | 2017-06-20 | 2022-06-22 | Huawei Technologies Co., Ltd. | De-registration method, and session processing method and device |
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