CN101621783B - Method and system for avoiding redundant position update, user equipment and network - Google Patents
Method and system for avoiding redundant position update, user equipment and network Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for avoiding redundant position update, and belongs to the field of wireless communication. The method is applicable to saving a communication system of a signaling mechanism under an idle mode. When user equipment is synchronously registered to a first network and a second network and moved to the second network from the first network, the method comprises the following steps: acquiring indication information; setting synchronous indication information of the user equipment according to the indication information; and initiating position update by the user equipment according to the set synchronous indication information. The system comprises the user equipment and a network. Through the position update according to the loaded update reasons, the redundant position update can be avoided, and the aim of saving signaling is achieved.
Description
Technical field
The present invention relates to wireless communication field, particularly a kind of method, subscriber equipment and network of avoiding redundant position update.
Background technology
In order to adapt to the development of the communication technology, 3GPP (3rd Generation Partnership Project, third generation partner program) has organized to set up wireless network evolution plan.As shown in Figure 1, the radio gradual network structure of this plan comprises EUTRAN (Evolved UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) Territorial Radio Access Network, the UMTS Terrestrial radio access network of evolution) network and GERAN (GSM/EDGE Radio Access Network, GSM EDGE Radio Access Network)/UTRAN (UMTS Territorial Radio Access Network, UMTS Terrestrial radio access network) network.
Wherein, EUTRAN network, its Access Network are EUTRAN, and corresponding Access Network managed network element is eNodeB; Its core net comprises: MME (Mobility Management Entity, mobile management network element), S-GW (Serving Gateway, gateway), three logic function bodies of P-GW (Packet Data Network Gateway, grouped data network gateway).MME is responsible for encryption, roaming and the tracking etc. of NAS signaling and NAS signaling, also is responsible for simultaneously the functions such as distributing user temporary identity sign, safety; S-GW is responsible for the functions such as the mobility anchor point of local mobility anchor point and 3GPP internal system and Lawful Interception relevant information; P-GW is responsible for carrying out the functions such as PCC (Policy and Charging Control, strategy and charging are controlled) strategy and Lawful Interception relevant information.
The GERAN/UTRAN network, its Access Network is GERAN or UTRAN, its core net comprises: GGSN (Gateway GPRS Supporting Node, GGSN) and SGSN (Serving GPRS Support Node, Serving GPRS Support Node) etc.Wherein, the control plane of SGSN part in follow-up discussion, is referred to as mobile management network element with SGSN and MME corresponding to the MME part of EUTRAN network.
Our said wireless side is often referred to the Access Network part, as EUTRAN, and GERAN or UTRAN etc.; Said network side refers generally to the core net part, as: MME, S-GW, P-GW or SGSN etc.
A demand of wireless evolution network is to realize ISR (Idle mode Signalling Reduction, saving signaling under idle pulley) function namely reduces the mobile management flow process (as: position update flow, bearing modification flow process etc.) of UE between different evolvement network (as: GERAN/UTRAN network and EUTRAN network) under idle pulley.The solution of current I SR mechanism is two login mechanisms, and namely UE registers at two different networks, like this, when under idle pulley, UE moves, will not trigger the mobile management flow process between these two networks.
Under existing mechanism, take UE from the GERAN/UTRAN Network Mobility to the EUTRAN network as example, referring to Fig. 2:
At first, the change (create, revise or deletion) of carrying occurs in UE at the GERAN/UTRAN network, UE will arrange the state " ISR synch need " of an inside, when UE moved to the EUTRAN network, RAT (Radio Access Type, wireless access type) changed, UE will initiate TAU (Trace Area Update, tracking area update) flow process to the MME transmission TAU request of EUTRAN network, and is made as ISR Synch with Update Type; EUTRAN network and GERAN/UTRAN network interaction contextual information (as RAT, user ID, subscription data etc.) and ISR ability are as shown in step 1,2;
Secondly, as shown in step 3-8, MME sends the bearer update request to S-GW, the contextual information after carrying cell ISR in this request and upgrading; S-GW sends the bearer update request to P-GW, carries the contextual information after the renewal of reception in this request; Contextual information after the renewal that P-GW will receive reports PCRF (Policy and Charging Rule Function "Policy and Charging Rules Function), returns more new bearer response to S-GW simultaneously, need not wait for the response of PCRF; S-GW returns more new bearer response of MME; MME sends " TAU acceptance " message to UE, and indicating positions more new technological process is completed, and indication UE ISR mechanism is set up; At this moment, UE has completed position update flow, and UE removes " ISR synch need ";
It should be noted that: for establishment, modification or the deletion of carrying, the capital is through above-mentioned position update flow, situation for deleting load-bearing, so far completed the synchronous process of bearer context, for the situation of load creating and modification, also need the bearer update flow process of initiating through following network side.
Again, as shown in step 9-13, the contextual information of PCRF after according to the renewal that receives issues corresponding PCC strategy to P-GW; P-GW finds the PCC strategy change, sends the bearer update request to S-GW; S-GW sends the bearing modification request by MME and eNodeB to UE;
At last, UE receives the bearing modification request that network side is initiated, and according to ISR mechanism, " ISR synch need " will be set; When UE retracts the GERAN/UTRAN network, due to the impact of " ISR Synch need ", UE can carry out the RAU flow process, and the RAT that reports PCRF this moment is inconsistent with record again, and network side can cause bearing modification equally, and UE puts " ISR Synch need ".So circulation, UE will arrange " ISR synch need " forever, in case UE changes RAT, will cause unnecessary position to be upgraded, and ISR will lose meaning.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Because UE perception carrying changes, arrange " ISR synch need ", affected " ISR synch need " is set forever by network side, can cause unnecessary position updating process, make ISR lose meaning.
Summary of the invention
In order to reach the purpose of saving signaling under ISR mechanism, the embodiment of the present invention provides a kind of method, system, a kind of subscriber equipment and network of avoiding redundant position update.Described technical scheme is as follows:
A kind of method of avoiding redundant position update is applicable to the communication system of saving signaling mechanism under idle pulley, and when subscriber equipment was registered to simultaneously first network and second network and moves to described second network from described first network, described method comprised:
Obtain indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS;
The synchronous indication information of subscriber equipment is set according to described indication information;
According to the described synchronous indication information that arranges, the subscriber equipment launch position upgrades.
A kind of system that avoids redundant position update, described system comprises:
Network, be used for generating described indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS; And described indication information is sent described subscriber equipment.
Subscriber equipment is used for receiving the indication information that described network sends, and according to described indication information, synchronous indication information is set, and determines whether that according to described synchronous indication information launch position upgrades;
A kind of subscriber equipment, described subscriber equipment is used for: receive the indication information that network sends, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS; According to described indication information, synchronous indication information is set; Upgrade according to described synchronous indication information launch position.
A kind of network, described network is used for generating indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS; And described indication information is sent to described subscriber equipment.
The embodiment of the present invention is crossed and is obtained indication information, according to indication information, synchronous indication information is set, determines whether more new technological process of launch position according to synchronous indication information, thereby avoid the position update flow of redundancy, reach the purpose of saving signaling, make the user really realize the benefit that ISR brings.
Description of drawings
Fig. 1 is the SAE wireless network architecture schematic diagram that prior art provides;
Fig. 2 is the position update flow figure that prior art provides;
Fig. 3 be the embodiment of the present invention provide avoid the redundant position update method flow diagram;
Fig. 4 is the flow chart of avoiding the redundant position update method based on the renewal cause value that the embodiment of the present invention 1 provides;
Fig. 5 is the flow chart of avoiding the redundant position update method based on two cover contextual informations that the embodiment of the present invention 2 provides;
Fig. 6 be the embodiment of the present invention 3 provide avoid the redundant position update method flow diagram based on standby mode;
Fig. 7 be the embodiment of the present invention 4 provide avoid the redundant position update system schematic;
Fig. 8 is the subscriber equipment schematic diagram that the embodiment of the present invention 4 provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
The embodiment of the present invention is by obtaining indication information, according to indication information, synchronous indication information is set, determines whether more new technological process of launch position according to synchronous indication information, thereby avoid the position update flow of redundancy, reach the purpose of saving signaling, make the user really realize the benefit that ISR brings.
Referring to Fig. 3, the embodiment of the present invention provides a kind of method of avoiding redundant position update, and when subscriber equipment was registered to simultaneously first network and second network and moves to described second network from described first network, the method comprised:
101: obtain indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information;
102: the synchronous indication information that subscriber equipment is set according to described indication information;
103: according to the described synchronous indication information that arranges, the subscriber equipment launch position upgrades.
Above general description avoid the method for redundant position update, below by embodiment 1,2,3, describe in detail and how to determine according to the reason of bearer update whether launch position upgrades subscriber equipment, thereby avoid the position of redundancy to upgrade.
Embodiment 1
The present embodiment provides a kind of method of avoiding redundant position update, the method obtains indication information according to the reason that carrying changes, according to indication information, synchronous indication information is set, determines whether that according to synchronous indication information launch position upgrades, thereby avoided the position of redundancy to upgrade.
Referring to Fig. 4, take UE from the GERAN/UTRAN Network Mobility to the EUTRAN network as example, the modification (or establishment) of carrying occurs in UE at the GERAN/UTRAN network, the state of the synchronous indication information of UE is set to " ISR synch need ", when UE moves to the EUTRAN network, RAT changes, and the meeting launch position is new technological process more, and concrete steps are as follows:
201:UE sends the TAU request to the MME of EUTRAN network, carries GUTI, P-TMSI in request, and Update Type is made as ISR Synch;
As UE from the EUTRAN Network Mobility to the GERAN/UTRAN network, UE will initiate RAU (Route Area Update, routing region updating) flow process, send the RAU request to the GERAN/UTRAN network, similarly, carry GUTI, P-TMSI in request, and Update Type is made as ISR Synch;
Compare with the TAU flow process, just because network type is different, the request of transmission is different, and effect both is identical, is all to opposite end network launch position update request.Repeat no more later on difference both.
202:EUTRAN network and GERAN/UTRAN network interaction contextual information and ISR ability are specially:
MME sends out context request message to SGSN, asks for contextual information and ISR ability to it; SGSN returns context response information to MME, carries its contextual information and ISR ability in message; MME sends context acknowledgement message to SGSN, sets up to SGSN indication ISR mechanism in this message.
203:MME sends bearer update (or establishment) request to S-GW, carries the contextual information of cell ISR and EUTRAN network in this request, such as: the RAT of EUTRAN network, subscription data etc.;
204:S-GW sends bearer update (or establishment) to P-GW and asks after receiving bearer update (or establishment) request of MME transmission, carries the contextual information of the EUTRAN network of reception in this request;
205:P-GW and PCRF are mutual, and the contextual information of the EUTRAN network that receives is reported PCRF;
206:P-GW returns S-GW bearer update (or establishment) response, and this step does not need to wait for the response of PCRF in 206;
After 207:S-GW receives the bearer update that P-GW returns (or establishment) response, return bearer update (or establishment) response to MME;
208:MME sends " TAU acceptance " message to UE, and indicating positions more new technological process is completed, and carries cell ISR in message, and indication UE ISR mechanism is set up;
At this moment, UE has completed position update flow, and the state of the synchronous indication information of UE self is set to " ISR synch not need ".
The contextual information that 209:PCRF reports according to the P-GW that receives, and from SPR (Subscription Profile Repository, the signed instrument warehouse) the inside obtains the service profile of UE and from AF (Application Function, application function) the inside obtains the current business information of UE, formulate corresponding PCC strategy, draw the reason that carrying changes, and generate indication information according to the reason that carrying changes, issue this PCC strategy and indication information to P-GW;
For example: PCRF sets: RAT changes need to issue new PCC strategy.If PCRF receives the RAT that P-GW reports, after PCRF found that RAT changes, according to top description, the information that PCRF collects by each side issued new PCC strategy to P-GW, and the reason of indicating simultaneously P-GW to carry at this moment change is that RAT changes;
PCRF sets: signing QoS change and RAT change all to be needed to issue new PCC strategy, but the rank that is superior to the RAT change of signing QoS.If PCRF receives P-GW and reports new signing QoS and new RAT, PCRF finds that signing QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy to P-GW, and the reason of indicating simultaneously P-GW to carry at this moment change is that signing QoS changes;
PCRF sets: signing QoS changes not to be needed to issue new PCC strategy, and the RAT change need to issue new PCC strategy.If PCRF receives P-GW and reports new signing QoS and new RAT, PCRF finds that signing QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy to P-GW, and the reason of indicating simultaneously P-GW to carry at this moment change is that RAT changes;
PCRF sets: the change of signing QoS need to issue new PCC strategy, and the RAT change does not need to issue new PCC strategy.If PCRF receives P-GW and reports new signing QoS and new RAT, PCRF finds that signing QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy to P-GW, and the reason of indicating simultaneously P-GW to carry at this moment change is that signing QoS changes.
Also having a kind of situation, is exactly that service profile in SPR changes, and at this moment PCRF initiatively issues the PCC strategy to P-GW, and the reason of indicating simultaneously P-GW to carry at this moment change is that SPR changes, and this class reason also needs UE to desynchronize.
It should be noted that administrative staff may be equally applicable to subsequent step by manual mode at new PCC strategy of PCRF configuration, no longer separately discuss.
More than obtain carrying the reason of change, how the below's narration generates indication information:
Change if the reason that carrying changes is RAT, indication information be set to invalid, for example: " ISR synch not need ";
If the reason that carrying changes is the reason (foregoing signing QoS changes, SPR change or manual configuration etc.) except RAT changes, indication information is set to effectively, for example: " ISR synch need ".
After 210:P-GW receives the PCC strategy and indication information of PCRF transmission, send out bearer update (or establishment) request to S-GW, indication information is carried in this request;
In addition, above-mentioned bearer update (or establishment) request can also be carried cell PTI, EPS BearerIdentity, Bearer QoS, UL TFT etc.
Because P-GW preserves the PCC strategy, so P-GW can also can draw the reason that carrying changes according to PCC strategy change situation, and the reason that changes according to carrying generates indication information, and indication information is sent to S-GW.
211:S-GW sends bearer update (or establishment) to MME and asks after receiving bearer update (or establishment) request of P-GW transmission, and the indication information of reception is carried in this request;
212:MME sends the indication information that receives after receiving bearer update (or establishment) request of S-GW transmission to eNodeB;
If receive in request and also carry Bearer QoS, MME initiates the bearing modification flow process based on QoS: MME and sends bearing modification (or establishment) request to eNodeB, carries indication information in this request;
If receive in request and do not carry Bearer QoS, MME initiates non-bearing modification flow process based on QoS: MME and sends down link Non-Access Stratum message transfer to eNodeB, carries indication information in this message.
Above-mentioned is the solicited message that UE sends from the GERAN/UTRAN Network Mobility to the EUTRAN network, as UE during from the EUTRAN Network Mobility to the GERAN/UTRAN network, SGSN receives bearer update (or establishment) request that S-GW sends, Access Network managed network element to the GERAN/UTRAN network sends PDP (Packet Data Protocol, packet data protocol) contextual modifications (or establishment) request, indication information is carried in this request.
Compare to the message that eNodeB sends with MME, just because network type is different, the message of transmission is different, and effect both is identical, is all indication information is sent to the Access Network managed network element.Repeat no more later on difference both.
213:eNodeB sends to UE with the indication information that receives;
According in 212 based on the bearing modification flow process of QoS, eNodeB sends radio bearer modification (or establishment) request to UE, the indication information of reception is carried in this request;
According to non-bearing modification flow process based on QoS in 212, eNodeB sends direct pass-along message to UE, carries the indication information of reception in this message.
214:UE receives the indication information that eNodeB sends, and the synchronous indication information of self is set according to indication information, determines whether that according to synchronous indication information launch position upgrades, with the contextual information of synchronizing network both sides;
If UE receive indication information state be invalid (as " ISR synch not need "), self synchronous indication information is set to invalid (as " ISR synch not need "), when RAT changed, UE is launch position new technological process more not;
If UE receive indication information state be effectively (as " ISR synch need "), self synchronous indication information is set to effectively (as " ISR synch need "), when RAT changes, the renewal of UE launch position.
Adopt the present embodiment, UE arranges synchronous indication information according to the indication information of network, determines whether that according to synchronous indication information launch position upgrades, thereby has avoided the position update flow of redundancy, has reached the purpose of saving signaling.
Embodiment 2
the present embodiment provides a kind of method of avoiding redundant position update, the method is upgraded the contextual information before the carrying change in the network of front place by obtaining the position, the position is upgraded contextual information and the position of carrying in the network of front place after changing and is upgraded contextual information in the network of rear place, comparison position is upgraded the contextual information after the carrying change in the network of front place, in the network of the rear place of renewal, position, contextual information and position are upgraded and are carried the situation of change that changes front contextual information in the network of front place, the state of synchronous indication information is set, whether launch position upgrades according to the Determines of synchronous indication information, thereby avoided the position of redundancy to upgrade.
Referring to Fig. 5, from the GERAN/UTRAN Network Mobility to the EUTRAN network, QoS signing in synchronous context information is example with UE.Synchronous other contextual information is identical with synchronous signing QoS method, repeats no more.Suppose that the modification (or establishment) of carrying occurs at the GERAN/UTRAN network UE, the synchronous indication information of UE is set to " ISR synch need ", and after UE moved to the EUTRAN network, launch position is new technological process more, and concrete steps are as follows:
301:UE sends the TAU request to MME;
After 302:MME receives this TAU request, with SGSN Interaction context information and ISR ability thereof;
303:MME starts ISR according to the ISR ability, sends bearer update (or establishment) request to S-GW, carries the contextual information of cell ISR and EUTRAN network in request, as RAT, and signing QoS etc.;
After 304:S-GW receives bearer update (or establishment) request of MME transmission, start ISR according to the indication of cell ISR, generate cell group (" Last Visted QoS ", " Current QoS "), and send bearer update (or establishment) request to P-GW, carry the cell ISR of reception and the contextual information of EUTRAN network in request;
The step that generates the cell group is: the QoS that S-GW will preserve in the past (being the signing QoS before in the GERAN/UTRAN network, carrying changes) copies a assignment respectively to " Last Visted QoS " and " Current QoS ".At this moment, ' " Last Visted QoS " is the same with the content that " Current QoS " preserves, and is all the signing QoS information before in the GERAN/UTRAN network, carrying changes.
305:P-GW generates cell group (" Last Visted QoS ", " Current QoS ") after receiving bearer update (or establishment) request of S-GW transmission, and step is identical with S-GW, repeats no more here; Mutual with PCRF, the cell ISR of reception and the contextual information of EUTRAN network are reported PCRF;
Indication starts ISR to PCRF according to cell ISR, preserves two RAT, records current RAT and is " Current RAT ", and former RAT is " Last Visted RAT "; If P-GW does not carry cell ISR, if recording ISR, original PCRF activates, should cancel the ISR mark, and deletion " Last Visted RAT ", issue the PCC strategy according to current RAT.
306: do not need to wait in 305 the result mutual with PCRF, P-GW returns bearer update (or establishment) response to S-GW;
307:S-GW sends bearer update (or establishment) to MME and responds after receiving bearer update (or establishment) response of P-GW transmission;
308:MME sends TAU to UE and accepts message after receiving bearer update (or establishment) response of S-GW transmission, carries cell ISR in message;
Indication starts ISR to UE according to cell ISR, generates cell group (" Last Visted QoS ", " Current QoS "), and step is identical with S-GW, repeats no more here.
309:PCRF is handed down to P-GW with " Current RAT " and " Last Visted RAT " relevant PCC strategy;
310:P-GW starts ISR according to cell ISR, " the Current RAT " and the QoS under " Last Visted RAT " that provide according to the PCC strategy under two RAT that receive are updated to " Current QoS " and " Last Visted QoS ", use " Current QoS ";
P-GW sends bearer update (or establishment) request to S-GW, comprises " Current QoS " and " Last Visted QoS " after renewal in request;
311:S-GW starts ISR according to cell ISR, and the QoS under the different RAT that provide according to P-GW is updated to " Current QoS " and " Last Visted QoS ", use " Current QoS ";
S-GW sends bearer update (or establishment) request to MME, comprises " Current QoS " and " Last Visted QoS " after renewal in request;
312:MME starts ISR according to cell ISR, and the QoS under the different RAT that provide according to S-GW is updated to " Current QoS " and " Last Visted QoS ", use " Current QoS ";
MME sends bearer update (or create) request to eNodeB, comprises " Current QoS " and " Last Visted QoS " after renewal in request;
313:eNodeB starts ISR according to cell ISR, and the QoS under the different RAT that provide according to MME is updated to " Current QoS " and " Last Visted QoS "; Use " Current QoS ";
ENodeB sends RRC and connects configuration (creating carrying) or radio bearer modification request to UE, comprises " Current QoS " and " Last Visted QoS " after renewal in message;
" the Current QoS " and " Last Visted QoS " of UE after according to the renewal that receives arranges respectively " the Current QoS " and " Last Visted QoS " of self; If " Current QoS " and " Last Visted QoS " only has a change, illustrate that just RAT change causes PCRF to issue new PCC strategy, at this moment, the state of the synchronous indication information of UE is set to " ISR synch not need ", also be about to synchronous indication information be set to invalid; If " the Current QoS " and " Last Visted QoS " of UE record all changes, explanation is to change except RAT, also having other contextual information to change (as signing QoS) causes PCRF to issue new PCC strategy, at this moment, the state of the synchronous indication information of UE is set to " ISR synch need ", also is about to synchronous indication information and is set to effectively.
More than judged by UE, also can at this moment, the result of judgement should be sent to UE by eNodeB, MME, S-GW, P-GW or PCRF judgement, UE arranges synchronous indication information according to the result of the judgement that receives.
For the situation that UE judges, the two cover contextual informations that network can be issued are as the indication information of network; Situation about judging for eNodeB, MME, S-GW, P-GW or PCRF, with the result of its judgement indication information as network, UE arranges the synchronous indication information of self according to the indication information of the network that receives, and determines whether that according to synchronous indication information launch position upgrades.
Above-mentioned position update flow, QoS signing in the synchronous context information are as example, and synchronously other contextual information with synchronously the QoS method is identical, repeats no more.
The present embodiment is by preserving two cover contextual informations, the state of synchronous indication information is set according to its situation of change, whether launch position upgrades according to the Determines of synchronous indication information, thereby has avoided the position update flow of redundancy, has reached the purpose of saving signaling.
The present embodiment provides a kind of method of avoiding redundant position update, the method is by waiting for the result mutual with PCRF, and carry the contextual information after renewal in response, avoid first response to initiate again the situation that repeats to arrange synchronous indication information that the bearer update flow process causes, thereby avoided the position update flow of redundancy.
Referring to Fig. 6, still with UE from the GERAN/UTRAN Network Mobility to the EUTRAN network, the subscription data QoS in synchronous context information is example, synchronously other contextual information is identical with synchronous QoS method, repeats no more.Suppose that the modification (or establishment) of carrying occurs at the GERAN/UTRAN network UE, the state that UE will arrange synchronous indication information is " ISR synch need ", and after UE moved to the EUTRAN network, launch position is new technological process more, concrete steps as follows:
401:UE sends TAU and asks to MME;
402:MME receives this TAU request, with SGSN Interaction context information and ISR ability thereof;
MME starts ISR according to the ISR ability, sends bearer update (or establishment) request to S-GW, carries the contextual information of cell ISR and EUTRAN network in request, as: RAT, QoS etc.;
403:MME sends bearer update (or establishment) request to S-GW, carries the contextual information of the EUTRAN network of cell ISR and reception in request, as: RAT, QoS etc.;
404:S-GW sends bearer update (or establishment) request to P-GW, carries the contextual information of the EUTRAN network of reception in request, as: RAT, QoS etc.;
405:P-GW and PCRF are mutual, and the contextual information of the EUTRAN network that receives is reported PCRF;
In the contextual information that PCRF finds to report, the RAT of RAT and preservation is inconsistent, according to the contextual information that reports, issues new PCC strategy to P-GW;
406: according to the new PCC strategy that PCRF provides, P-GW preserves the QoS of EUTRAN network;
P-G returns the response of S-GW bearer update, carries the QoS of EUTRAN network in response, and this step need to be waited for the response mutual with PCRF;
407:S-GW preserves the QoS of EUTRAN network, returns the response of MME bearer update, carries the QoS of EUTRAN network in response;
408:MME sends TAU by eNodeB to UE and accepts message, carries the QoS of EUTRAN network in message;
UE preserves the QoS of EUTRAN network, and the state of synchronous indication information is set to " ISR synch not need ", and it is invalid that the state that also is about to synchronous indication information is set to.
Above-mentioned position update flow, the subscription data QoS in the synchronous context information are as example, and synchronously other contextual information is identical with synchronous QoS method, repeats no more.
The present embodiment is by waiting for the result mutual with PCRF, and carries the contextual information after renewal in response, avoided the position update flow of redundancy, reached the purpose of saving signaling.
Embodiment 4
Referring to Fig. 7, the present embodiment provides a kind of system that avoids redundant position update, and this system comprises: subscriber equipment 501 and network 502, wherein,
Referring to Fig. 8, described subscriber equipment 501 specifically comprises:
Indication information receiving element 501a is used for receiving contextual information and the contextual information after described first network carrying change and the contextual information of described second network before the described first network carrying of obtaining of described network transmission changes;
Synchronous indication information setting unit 501b, contextual information after contextual information before being used for described first network carrying is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively;
Network comprises access property managed network element 502a, mobile management network element 502b, gateway 502c, grouped data network gateway 502d "Policy and Charging Rules Function entity 502e;
Described grouped data network gateway 502d is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to described subscriber equipment 501 by gateway 502c, mobile management network element 502b, Access Network managed network element 502a successively;
As another kind of execution mode, described "Policy and Charging Rules Function 502e is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to subscriber equipment by grouped data network gateway 502d, gateway 502c, mobile management network element 502b, Access Network managed network element 502a successively.
As another kind of execution mode, in described "Policy and Charging Rules Function entity 502e, grouped data network gateway 502d, gateway 502c, mobile management network element 502b or access property managed network element 502a, any one can be used for: obtain contextual information and the contextual information after described first network carrying change and the contextual information of described second network before described first network carrying changes; Contextual information after contextual information before the carrying of described first network is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively; Described indication information is sent to subscriber equipment.
As another kind of execution mode,
Described mobile management network element 502b is used for sending to packet data gateway 502d transmission bearer update or request to create by gateway 502c;
Described "Policy and Charging Rules Function entity 502e is used for obtaining new PCC strategy according to the interaction results with described packet data gateway, and issues described new PCC strategy to described packet data gateway;
Described packet data gateway 502d is used for obtaining upgrading the QoS of rear place network according to described PCC strategy, and carries described QOS in bearer update (or establishment) response, sends to mobile management network element 502b by gateway 502c;
Described mobile management network element 502b is used for that also described QoS is carried at the tracking area update response and sends to described subscriber equipment 501; Described subscriber equipment 501 carries the tracking area update response of QoS as indication information with described.
The present embodiment is by obtaining the reason of PCC policy update, and then the state of synchronous indication information is set, and to determine whether more new technological process of launch position, avoided the position update flow of redundancy, reached the purpose of saving signaling.
All or part of content in the technical scheme that above embodiment provides can realize by software programming, and its software program is stored in the storage medium that can read, storage medium for example: the hard disk in computer, CD or floppy disk.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (19)
1. method of avoiding redundant position update, be applicable to the communication system of saving signaling mechanism under idle pulley, it is characterized in that, when subscriber equipment was registered to simultaneously first network and second network and moves to described second network from described first network, described method comprised:
Obtain indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS;
The synchronous indication information of subscriber equipment is set according to described indication information;
According to the described synchronous indication information that arranges, the subscriber equipment launch position upgrades.
2. the method for avoiding redundant position update as claimed in claim 1, is characterized in that, when described indication information is the indication information that arranges according to the reason that carrying changes, comprises before obtaining indication information described:
Grouped data network gateway obtains the reason that carrying changes;
The reason that changes according to described carrying arranges described indication information;
Described indication information is sent to subscriber equipment by gateway, mobile management network element, Access Network managed network element successively.
3. the method for avoiding redundant position update as claimed in claim 1, is characterized in that, when described indication information is the indication information that arranges according to the reason that carrying changes, comprises before obtaining indication information described:
"Policy and Charging Rules Function obtains the reason that carrying changes;
The reason that changes according to described carrying arranges described indication information;
Described indication information is sent to subscriber equipment by grouped data network gateway, gateway, mobile management network element, Access Network managed network element successively.
4. avoid as claimed in claim 2 or claim 3 the method for redundant position update, it is characterized in that, the described reason that changes according to described carrying arranges described indication information and specifically comprises:
If what described carrying changed is former because wireless access type changes, described indication information be set to invalid;
If what described carrying changed is former in the reason except wireless access type changes, described indication information is set to effectively.
5. the method for avoiding redundant position update as claimed in claim 1, it is characterized in that, when described indication information is, during indication information that the situation of change of the contextual information before the contextual information after carrying changes according to described first network and the contextual information of described second network change with respect to described first network carrying arranges, describedly comprise before obtaining indication information:
Subscriber equipment obtains contextual information and the contextual information after described first network carrying change and the contextual information of described second network before described first network carrying changes;
Contextual information after contextual information before the carrying of described first network is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively.
6. the method for avoiding redundant position update as claimed in claim 1, it is characterized in that, when described indication information is, during indication information that the situation of change of the contextual information before the contextual information after carrying changes according to described first network and the contextual information of described second network change with respect to described first network carrying arranges, describedly comprise before obtaining indication information:
Access property managed network element, mobile management network element, gateway, grouped data network gateway or "Policy and Charging Rules Function entity obtain contextual information and the contextual information after described first network carrying change and the contextual information of described second network before described first network carrying changes;
Contextual information after the carrying of more described first network changes and the contextual information of described second network and described first network carrying change front contextual information whether only have one different, if so, described indication information be set to invalid; Otherwise described indication information is set to effectively;
Described indication information is sent to subscriber equipment.
7. the method for avoiding redundant position update as described in claim 5 or 6, is characterized in that, described contextual information is service quality.
8. the method for avoiding redundant position update as claimed in claim 1, is characterized in that, when described indication information is that when carrying the tracking area update response of QoS, the described indication information that obtains specifically comprises:
Subscriber equipment sends the tracking area update request to mobile management network element;
Described mobile management network element sends to packet data gateway by gateway and sends bearer update or request to create;
The "Policy and Charging Rules Function entity obtains new PCC strategy according to the interaction results with described packet data gateway, and issues described new PCC strategy to described packet data gateway;
Described packet data gateway obtains upgrading the QoS of rear place network according to described PCC strategy, and carries described QoS in bearer update or request to create response, sends to mobile management network element by gateway;
Described mobile management network element is carried at described QoS in the tracking area update response and sends to subscriber equipment;
Subscriber equipment carries the tracking area update response of QoS as indication information with described.
9. a system that avoids redundant position update, is characterized in that, described system comprises:
Network is used for generating indication information, and described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information; And described indication information is sent to subscriber equipment, described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS;
Subscriber equipment is used for receiving the indication information that described network sends, and according to described indication information, synchronous indication information is set, and determines whether that according to described synchronous indication information launch position upgrades;
10. the system that avoids redundant position update as claimed in claim 9, is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Described grouped data network gateway is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to described subscriber equipment by gateway, mobile management network element, Access Network managed network element successively;
Or described "Policy and Charging Rules Function is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to subscriber equipment by grouped data network gateway, gateway, mobile management network element, Access Network managed network element successively.
11. the system that avoids redundant position update as claimed in claim 9 is characterized in that, described subscriber equipment specifically comprises:
The indication information receiving element is used for receiving contextual information and the contextual information after described first network carrying change and the contextual information of described second network before the described first network carrying of obtaining of described network transmission changes;
Synchronous indication information setting unit, contextual information after contextual information before being used for described first network carrying is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively;
The position updating block is used for upgrading according to described synchronous indication information launch position.
12. the system that avoids redundant position update as claimed in claim 9 is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Described "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element or access property managed network element are used for: obtain contextual information and the contextual information after described first network carrying change and the contextual information of described second network before described first network carrying changes; Contextual information after contextual information before the carrying of described first network is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively; Described indication information is sent to subscriber equipment.
13. the system that avoids redundant position update as claimed in claim 9 is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Subscriber equipment is used for sending the tracking area update request to described mobile management network element;
Described mobile management network element is used for sending to packet data gateway transmission bearer update or request to create by gateway;
Described "Policy and Charging Rules Function entity is used for obtaining new PCC strategy according to the interaction results with described packet data gateway, and issues described new PCC strategy to described packet data gateway;
Described packet data gateway is used for obtaining upgrading the QoS of rear place network according to described PCC strategy, and carries described QoS in bearer update or request to create response, sends to mobile management network element by gateway;
Described mobile management network element is used for that also described QoS is carried at the tracking area update response and sends to described subscriber equipment; Described subscriber equipment carries the tracking area update response of QoS as indication information with described.
14. a subscriber equipment is characterized in that, described subscriber equipment is used for: receive the indication information that network sends; Described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS; According to described indication information, synchronous indication information is set; Upgrade according to described synchronous indication information launch position.
15. subscriber equipment as claimed in claim 14 is characterized in that, described subscriber equipment specifically comprises:
The indication information receiving element is used for receiving contextual information and the contextual information after described first network carrying change and the contextual information of described second network before the described first network carrying of obtaining of described network transmission changes;
Synchronous indication information setting unit, contextual information after contextual information before being used for described first network carrying is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively;
The position updating block is used for upgrading according to described synchronous indication information launch position.
16. network, it is characterized in that, described network is used for generating indication information, described indication information is used for direct equipment for indicating user and synchronous indication information is set or comprises contextual information, and described indication information is: the indication information of the reason setting that changes according to carrying or change according to described first network carrying after contextual information and the indication information of the situation of change setting of the contextual information of the described second network contextual information before changing with respect to described first network carrying or the tracking area update response of carrying QoS; And described indication information is sent to subscriber equipment.
17. network as claimed in claim 16 is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Described grouped data network gateway is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to described subscriber equipment by gateway, mobile management network element, Access Network managed network element successively;
Or described "Policy and Charging Rules Function is used for obtaining the reason that carrying changes; The reason that changes according to described carrying arranges described indication information; Described indication information is sent to subscriber equipment by grouped data network gateway, gateway, mobile management network element, Access Network managed network element successively.
18. network as claimed in claim 16 is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Described "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element or access property managed network element are used for: obtain contextual information and the contextual information after described first network carrying change and the contextual information of described second network before described first network carrying changes; Contextual information after contextual information before the carrying of described first network is changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, described indication information be set to invalid; Otherwise described indication information is set to effectively; Described indication information is sent to subscriber equipment.
19. network as claimed in claim 16 is characterized in that, described network comprises: "Policy and Charging Rules Function entity, grouped data network gateway, gateway, mobile management network element and access managed network element;
Described mobile management network element is used for sending to packet data gateway transmission bearer update or request to create by gateway;
Described "Policy and Charging Rules Function entity is used for obtaining new PCC strategy according to the interaction results with described packet data gateway, and issues described new PCC strategy to described packet data gateway;
Described packet data gateway is used for obtaining upgrading the QoS of rear place network according to described PCC strategy, and carries described QoS in bearer update or request to create response, sends to mobile management network element by gateway;
Described mobile management network element is used for that also described QoS is carried at the tracking area update response and sends to described subscriber equipment; Described subscriber equipment carries the tracking area update response of QoS as indication information with described.
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| CN104995956B (en) * | 2013-09-25 | 2019-06-18 | 华为技术有限公司 | A kind of method, apparatus and system that data channel is established |
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| CN1761177A (en) * | 2004-10-11 | 2006-04-19 | 中兴通讯股份有限公司 | Method for implementing lossless rearrangement in recovery process of virtual cascade connection |
| CN101154984A (en) * | 2006-09-25 | 2008-04-02 | 大唐移动通信设备有限公司 | Method and system for remaining ascending synchronization |
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| CN1761177A (en) * | 2004-10-11 | 2006-04-19 | 中兴通讯股份有限公司 | Method for implementing lossless rearrangement in recovery process of virtual cascade connection |
| CN101154984A (en) * | 2006-09-25 | 2008-04-02 | 大唐移动通信设备有限公司 | Method and system for remaining ascending synchronization |
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