CN101621783A - 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 development of Communication Technique, 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/EDGERadio Access Network, GSM EDGE Radio Access Network)/UTRAN (UMTS Territorial Radio AccessNetwork, 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 functions such as distributing user temporary identity sign, safety simultaneously; S-GW is responsible for 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 functions such as PCC (Policy and Charging Control, the strategy and the control of chargeing) strategy and Lawful Interception relevant information.
GERAN/UTRAN network, its Access Network are GERAN or UTRAN, and its core net comprises: GGSN (GatewayGPRS 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 the idle pulley) function promptly reduces the mobile management flow process (as: position more new technological process, bearing modification flow process etc.) of UE between different evolvement network (as: GERAN/UTRAN network and EUTRAN network) under the idle pulley.The solution of current I SR mechanism is two login mechanisms, and promptly UE registers at two different networks, and like this, UE when mobile, will not trigger the mobile management flow process under the idle pulley between these two networks.
Under existing mechanism, moving to the EUTRAN network with UE from the GERAN/UTRAN network is example, referring to Fig. 2:
At first, the change (create, revise or deletion) of carrying takes place in UE at the GERAN/UTRAN network, UE will be provided with 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 sends the TAU request to the MME of EUTRAN network, and Update Type is made as ISR Synch; EUTRAN network and GERAN/UTRAN network interaction contextual information (as RAT, user ID, subscription data etc.) and ISR ability are shown in step 1,2;
Secondly, 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 finished, and indication UE ISR mechanism is set up; At this moment, UE has finished more new technological process of position, and UE removes " ISR synch need ";
It should be noted that: for bearing creation, modification or deletion, the above-mentioned position of process, capital is new technological process more, situation for deleting load-bearing, so far finished 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.
Once more, 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 " ISR synch need " according to ISR mechanism, will be set; When UE retracts the GERAN/UTRAN network, because the influence 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 be provided with " 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, and is provided with " ISR synch need ", influenced " ISR synchneed " 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 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 the idle pulley, when subscriber equipment is registered to first network and second network and when described first network moved to described second network, described method comprised simultaneously:
Obtain indication information, described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information;
The synchronous indication information of subscriber equipment is set according to described indication information;
According to the described synchronous indication information that is provided with, subscriber equipment is initiated the position and is upgraded.
A kind of system that avoids redundant position update, described system comprises:
Network is used to generate described indication information, and described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; And described indication information sent described subscriber equipment.
Subscriber equipment is used to receive the indication information that described network sends, and according to described indication information synchronous indication information is set, and determines whether to initiate the position according to described synchronous indication information and 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 directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; According to described indication information synchronous indication information is set; Initiating the position according to described synchronous indication information upgrades.
A kind of network, described network is used to generate indication information, and described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; And described indication information sent to described subscriber equipment.
The embodiment of the invention is crossed and is obtained indication information, according to indication information synchronous indication information is set, determines whether to initiate more new technological process of position, thereby avoid more new technological process of redundant position according to synchronous indication information, 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 that flow chart is upgraded in the position that prior art provides;
Fig. 3 be the embodiment of the 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 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 invention 2 provides;
Fig. 6 be the embodiment of the invention 3 provide avoid the redundant position update method flow diagram based on standby mode;
Fig. 7 be the embodiment of the invention 4 provide avoid the redundant position update system schematic;
Fig. 8 is the subscriber equipment schematic diagram that the embodiment of the 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 invention is by obtaining indication information, according to indication information synchronous indication information is set, determines whether to initiate more new technological process of position, thereby avoid more new technological process of redundant position according to synchronous indication information, reach the purpose of saving signaling, make the user really realize the benefit that ISR brings.
Referring to Fig. 3, the embodiment of the invention provides a kind of method of avoiding redundant position update, when subscriber equipment is registered to first network and second network and when described first network moved to described second network, this method comprised simultaneously:
101: obtain indication information, described indication information is used for directly indicating subscriber equipment that 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 is provided with, subscriber equipment is initiated the position and is upgraded.
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 subscriber equipment is initiated the position and upgraded, thereby avoid redundant position to upgrade.
Embodiment 1
Present embodiment provides a kind of method of avoiding redundant position update, this method obtains indication information according to the reason that carrying changes, according to indication information synchronous indication information is set, determines whether to initiate the position according to synchronous indication information and upgrade, thereby avoided redundant position to upgrade.
Referring to Fig. 4, moving to the EUTRAN network with UE from the GERAN/UTRAN network is example, the modification (or establishment) of carrying takes place 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 can initiate more new technological process of position, and concrete steps are as follows:
201:UE sends the TAU request to the MME of EUTRAN network, carries GUTI, P-TMSI in the request, and UpdateType is made as ISR Synch;
When UE moves to the GERAN/UTRAN network from the EUTRAN 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 the request, and Update Type is made as ISR Synch;
Compare with the TAU flow process, just owing to the network type difference, the request difference of transmission, the effect of the two is identical, all is to initiate position updating request to the opposite end network.Repeat no more the difference of the two later on.
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 the 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, for example: 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 finished, and carries cell ISR in the message, and indication UE ISR mechanism is set up;
At this moment, UE has finished more new technological process of position, and the state of the synchronous indication information of UE self is set to " ISR synch notneed ".
The contextual information that 209:PCRF reports according to the P-GW that receives, and from SPR (Subscription ProfileRepository, 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, issue this PCC strategy and indication information to P-GW according to the reason that carrying changes;
For example: PCRF sets: RAT changes need 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 and gives P-GW, and the reason of indicating P-GW to carry change at this moment simultaneously is that RAT changes;
PCRF sets: the QoS that contracts changes and the RAT change all needs to issue new PCC strategy, but the rank that is superior to the RAT change of signatory QoS.If PCRF receives P-GW and reports new signatory QoS and new RAT, PCRF finds that signatory QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy and gives P-GW, and the reason of indicating P-GW to carry change at this moment simultaneously is that signatory QoS changes;
PCRF sets: signatory QoS changes not to be needed to issue new PCC strategy, and the RAT change need issue new PCC strategy.If PCRF receives P-GW and reports new signatory QoS and new RAT, PCRF finds that signatory QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy and gives P-GW, and the reason of indicating P-GW to carry change at this moment simultaneously is that RAT changes;
PCRF sets: the change of signatory QoS need issue new PCC strategy, and the RAT change does not need to issue new PCC strategy.If PCRF receives P-GW and reports new signatory QoS and new RAT, PCRF finds that signatory QoS changes and RAT changes, according to top description, the information that PCRF collects by each side issues new PCC strategy and gives P-GW, and the reason of indicating P-GW to carry change at this moment simultaneously is that signatory QoS changes.
Also having a kind of situation, is exactly that service profile among the SPR changes, and at this moment PCRF initiatively issues the PCC strategy and gives P-GW, and the reason of indicating P-GW to carry change at this moment simultaneously 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 narration generates indication information below:
Change if the reason that carrying changes is RAT, then indication information be set to invalid, for example: " ISR synch not need ";
If the reason that carrying changes is to remove the reason (foregoing signatory QoS change, SPR change or manual configuration etc.) of RAT changing, then 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 Bearer Identity, BearerQoS, 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 the 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 the 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.
The above-mentioned solicited message that moves to the transmission of EUTRAN network for UE from the GERAN/UTRAN network, when UE when the EUTRAN network moves 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 owing to the network type difference, the message difference of transmission, the effect of the two is identical, all is indication information is sent to the Access Network managed network element.Repeat no more the difference of the two later on.
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 according to indication information self synchronous indication information is set, and determines whether to initiate the position according to synchronous indication information and upgrades, with the contextual information of synchronizing network both sides;
If UE receive indication information state be invalid (as " ISR synch not need "), then self synchronous indication information is set to invalid (as " ISR synch not need "), when RAT changed, UE did not initiate more new technological process of position;
If UE receive indication information state be effectively (as " ISR synch need "), then self synchronous indication information is set to effectively (as " ISR synch need "), when RAT changes, UE initiation position renewal.
Adopt present embodiment, UE is provided with synchronous indication information according to the indication information of network, determines whether to initiate the position according to synchronous indication information and upgrades, thereby avoided more new technological process of redundant position, has reached the purpose of saving signaling.
Embodiment 2
Present embodiment provides a kind of method of avoiding redundant position update, this method is upgraded the contextual information before the carrying change in the network of preceding place by obtaining the position, the position is upgraded the contextual information and the position of carrying in the network of preceding place after changing and is upgraded contextual information in the network of place, back, comparison position is upgraded the contextual information after the carrying change in the network of preceding place, the situation of change of the contextual information before the carrying change in the network of preceding place is upgraded in contextual information and position in the network of place, renewal back, position, the state of synchronous indication information is set, whether initiate the position according to the state decision of synchronous indication information and upgrade, thereby avoided redundant position to upgrade.
Referring to Fig. 5, move to the EUTRAN network with UE from the GERAN/UTRAN network, QoS signatory in the synchronous context information is an example.Other contextual information is identical with signatory synchronously QoS method synchronously, repeats no more.Suppose the modification (or create) of UE in GERAN/UTRAN network generation carrying, the synchronous indication information of UE is set to " ISR synch need ", after UE moves to the EUTRAN network, initiates more new technological process of position, and concrete steps are as follows:
301:UE sends the TAU request to MME;
After 302:MME receives this TAU request, with mutual contextual information of SGSN 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 the request, as RAT, and signatory QoS etc.;
After 304:S-GW receives bearer update (or establishment) request of MME transmission, indication according to cell ISR starts ISR, generate cell group (" Last Visted QoS ", " Current QoS "), and, carry the cell ISR of reception and the contextual information of EUTRAN network in the request to P-GW transmission bearer update (or establishment) request;
The step that generates the cell group is: the QoS that S-GW will preserve in the past (being the signatory QoS before carrying changes in the GERAN/UTRAN network) duplicates a assignment respectively and gives " Last Visted QoS " and " Current QoS ".At this moment, ' " Last VistedQoS " is the same with the content that " Current QoS " preserves, and all is the signatory QoS information before carrying changes in the GERAN/UTRAN network.
305:P-GW generates cell group (" Last VistedQoS ", " 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, and writing down current RAT is " Current RAT ", and former RAT is " Last Visted RAT "; If P-GW does not carry cell ISR, if original PCRF record ISR activates, then 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 and the mutual result of PCRF that P-GW returns bearer update (or establishment) response and gives 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 the 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 " with " Last Visted RAT " relevant PCC strategy;
310:P-GW starts ISR according to cell ISR, " CurrentRAT " and the QoS under " Last Visted RAT " that are provided 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 and gives S-GW, comprises " Current QoS " and " LastVisted QoS " after the renewal in the request;
311:S-GW starts ISR according to cell ISR, and the different RAT QoS down that provides according to P-GW is updated to " CurrentQoS " and " Last Visted QoS ", use " Current QoS ";
S-GW sends bearer update (or establishment) request and gives MME, comprises " Current QoS " and " LastVisted QoS " after the renewal in the request;
312:MME starts ISR according to cell ISR, and the different RAT QoS down that provides 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 the renewal in the request;
313:eNodeB starts ISR according to cell ISR, and the QoS under the different RAT that provide according to MME is updated to " CurrentQoS " and " Last Visted QoS "; Use " Current QoS ";
ENodeB sends that RRC connects configuration (creating carrying) or UE is given in the radio bearer modification request, comprises " Current QoS " and " Last Visted QoS " after the renewal in the message;
" the Current QoS " and " Last Visted QoS " of UE after according to the renewal that receives is provided with " CurrentQoS " and " Last Visted QoS " of self respectively; If " Current QoS " and " Last Visted QoS " has only a change, illustrate that just the RAT change causes PCRF to issue new PCC strategy, at this moment, the state of the synchronous indication information of UE is set to " ISRsynch not need ", also be about to synchronous indication information be set to invalid; If " the Current QoS " and " LastVisted QoS " of UE record all changes, explanation is to change except RAT, also having other contextual information to change (as signatory 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.
Judge by UE more than, also can judge that at this moment, the result who judges should be sent to UE, UE is provided with synchronous indication information according to the result of the judgement that receives by eNodeB, MME, S-GW, P-GW or PCRF.
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 is provided with the synchronous indication information of self according to the indication information of the network that receives, and determines whether to initiate the position according to synchronous indication information and upgrade.
Above-mentioned position is new technological process more, is example with QoS signatory in the synchronous context information, and other contextual information repeats no more with the QoS method is identical synchronously synchronously.
Present embodiment is by preserving two cover contextual informations, the state of synchronous indication information is set according to its situation of change, whether decision is initiated the position and is upgraded according to the state of synchronous indication information, thereby has avoided more new technological process of redundant position, has reached the purpose of saving signaling.
Embodiment 3
Present embodiment provides a kind of method of avoiding redundant position update, this method is by waiting for and the mutual result of PCRF, and in response, carry the contextual information after the renewal, avoid first response to initiate the situation that repeats to be provided with synchronous indication information that the bearer update flow process is caused again, thereby avoided more new technological process of redundant position.
Referring to Fig. 6, still move to the EUTRAN network from the GERAN/UTRAN network with UE, the subscription data QoS in the synchronous context information is an example, other contextual information repeats no more with the QoS method is identical synchronously synchronously.Suppose that UE at the GERAN/UTRAN network modification (or establishment) of carrying takes place, the state that UE will be provided with synchronous indication information is " ISR synch need ", after UE moves to the EUTRAN network, initiates more new technological process of position, concrete steps as follows:
401:UE sends TAU and asks to MME;
402:MME receives this TAU request, with mutual contextual information of SGSN 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 the 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 the 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 the 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;
The RAT of RAT and preservation is inconsistent in the contextual information that PCRF finds to report, and 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 the response, and this step need 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 the response;
408:MME sends TAU by eNodeB to UE and accepts message, carries the QoS of EUTRAN network in the 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 is new technological process more, is example with the subscription data QoS in the synchronous context information, and other contextual information repeats no more with the QoS method is identical synchronously synchronously.
Present embodiment is by waiting for and the mutual result of PCRF, and carries the contextual information after the renewal in response, avoided more new technological process of redundant position, reached the purpose of saving signaling.
Embodiment 4
Referring to Fig. 7, 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 to receive the preceding contextual information of described first network carrying change of obtaining of described network transmission and the contextual information after the change of described first network carrying and the contextual information of described second network;
Indication information is provided with unit 501b synchronously, the contextual information after contextual information before being used for described first network carrying changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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, any one can be used among described "Policy and Charging Rules Function entity 502e, grouped data network gateway 502d, gateway 502c, mobile management network element 502b or the access property managed network element 502a: obtain contextual information and the contextual information after the change of described first network carrying and the contextual information of described second network before described first network carrying changes; The contextual information after the contextual information that described first network carrying change is preceding changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; 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 place, back 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.
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 initiating more new technological process of position, avoided more new technological process of redundant position, reached the purpose of saving signaling.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within 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 the idle pulley, it is characterized in that, when subscriber equipment is registered to first network and second network and when described first network moved to described second network, described method comprised simultaneously:
Obtain indication information, described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information;
The synchronous indication information of subscriber equipment is set according to described indication information;
According to the described synchronous indication information that is provided with, subscriber equipment is initiated the position and is upgraded.
2. the method for avoiding redundant position update as claimed in claim 1 is characterized in that, the described indication information that obtains comprises before:
Grouped data network gateway obtains the reason that carrying changes;
The reason that changes according to described carrying is provided with 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, the described indication information that obtains comprises before:
"Policy and Charging Rules Function obtains the reason that carrying changes;
The reason that changes according to described carrying is provided with 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. as claim 2 or the 3 described methods of avoiding redundant position update, it is characterized in that the described reason that changes according to described carrying is provided with described indication information and specifically comprises:
If what described carrying changed is former because wireless access type changes, it is invalid that then described indication information is set to;
If what described carrying changed is former in the reason except that wireless access type changes, then described indication information is set to effectively.
5. the method for avoiding redundant position update as claimed in claim 1 is characterized in that, the described indication information that obtains comprises before:
Subscriber equipment obtains contextual information and the contextual information after the change of described first network carrying and the contextual information of described second network before described first network carrying changes;
The contextual information after the contextual information that described first network carrying change is preceding changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; Otherwise described indication information is set to effectively.
6. the method for avoiding redundant position update as claimed in claim 1 is characterized in that, the described indication information that obtains comprises before:
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 the change of described first network carrying and the contextual information of described second network before described first network carrying changes;
The contextual information after more described first network carrying changes and the contextual information of described second network and described first network carrying change preceding contextual information whether have only one different, if it is invalid that then described indication information is set to; Otherwise described indication information is set to effectively;
Described indication information is sent to subscriber equipment.
7. as claim 5 or the 6 described methods of avoiding redundant position update, it is characterized in that described contextual information is a service quality.
8, the method for avoiding redundant position update as claimed in claim 1 is characterized in that, 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 place, back network according to described PCC strategy, and carries described QOS in bearer update (or establishment) 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 to generate indication information, and described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; And described indication information sent to subscriber equipment;
Subscriber equipment is used to receive the indication information that described network sends, and according to described indication information synchronous indication information is set, and determines whether to initiate the position according to described synchronous indication information and 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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 to receive the preceding contextual information of described first network carrying change of obtaining of described network transmission and the contextual information after the change of described first network carrying and the contextual information of described second network;
Indication information is provided with the unit synchronously, the contextual information after contextual information before being used for described first network carrying changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; Otherwise described indication information is set to effectively;
The position updating block is used for initiating the position according to described synchronous indication information and upgrades.
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 the change of described first network carrying and the contextual information of described second network before described first network carrying changes; The contextual information after the contextual information that described first network carrying change is preceding changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; 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 place, back network according to described PCC strategy, and carries described QOS in bearer update (or establishment) 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 directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; According to described indication information synchronous indication information is set; Initiating the position according to described synchronous indication information upgrades.
15. subscriber equipment as claimed in claim 14 is characterized in that, described subscriber equipment specifically comprises:
The indication information receiving element is used to receive the preceding contextual information of described first network carrying change of obtaining of described network transmission and the contextual information after the change of described first network carrying and the contextual information of described second network;
Indication information is provided with the unit synchronously, the contextual information after contextual information before being used for described first network carrying changed changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; Otherwise described indication information is set to effectively;
The position updating block is used for initiating the position according to described synchronous indication information and upgrades.
16. a network is characterized in that described network is used to generate indication information, described indication information is used for directly indicating subscriber equipment that synchronous indication information is set or comprises contextual information; And described indication information 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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 to obtain the reason that carrying changes; The reason that changes according to described carrying is provided with 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 the change of described first network carrying and the contextual information of described second network before described first network carrying changes; The contextual information after the contextual information that described first network carrying change is preceding changes with described first network carrying respectively and the contextual information of described second network compare, if a difference is arranged, it is invalid that then described indication information is set to; 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 place, back network according to described PCC strategy, and carries described QOS in bearer update (or establishment) 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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| CN 200810116110 CN101621783B (en) | 2008-07-03 | 2008-07-03 | Method and system for avoiding redundant position update, user equipment and network |
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| WO2023138452A1 (en) * | 2022-01-19 | 2023-07-27 | 华为技术有限公司 | Communication method, apparatus, and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013020293A1 (en) * | 2011-08-11 | 2013-02-14 | 华为技术有限公司 | Service restoration method and device |
| WO2015042791A1 (en) * | 2013-09-25 | 2015-04-02 | 华为技术有限公司 | Method, device and system for establishing data channel |
| WO2023138452A1 (en) * | 2022-01-19 | 2023-07-27 | 华为技术有限公司 | Communication method, apparatus, and system |
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