CN101572863A - Method and device for processing user equipment context - Google Patents
Method and device for processing user equipment context Download PDFInfo
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- CN101572863A CN101572863A CNA2008101057694A CN200810105769A CN101572863A CN 101572863 A CN101572863 A CN 101572863A CN A2008101057694 A CNA2008101057694 A CN A2008101057694A CN 200810105769 A CN200810105769 A CN 200810105769A CN 101572863 A CN101572863 A CN 101572863A
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Abstract
The invention discloses a method and a device for processing user equipment context. The method for processing user equipment context comprises the following steps that: an access-network discovering-selecting functional entity receives a deletion-indicating message after the state of user equipment changes; and the access-network discovering-selecting functional entity deletes user equipment context corresponding to the user equipment according to the deletion-indicating message. The device for processing user equipment context comprises the user equipment, wireless network equipment and the access-network discovering-selecting functional entity corresponding to the method. The embodiment of the invention can enable ANDSF to delete invalid UE context in time, thereby avoiding the problems of storing excessive waste data and sending data to wrong UE.
Description
Technical field
The present invention relates to wireless communication technology field, especially a kind of method and apparatus of processing user equipment context.
Background technology
In order to tackle the challenge of wireless broad band technology, Long Term Evolution plan (Long Term Evolution, LTE) defined a kind of framework---packet network (the Evolved PacketSystem of evolution of new communication network, EPS), EPS has merged plurality of access modes, comprises that 3GPP inserts, believable non-3GPP inserts, incredible non-3GPP inserts.Subscriber equipment (User Equipment, UE), or be called subscriber equipment, behind the access network, access network discovery in the network and selection functional entity (Access NetworkDiscovery and Selection Function, ANDSF) the network condition information of collection access network, as load condition etc., corresponding strategies according to operator, the access way that can use as UE, send Access Network information and switchover policy to UE, UE switches in the corresponding Access Network according to this Access Network information and switchover policy.In order to make ANDSF can answer the UE request to send data or when switchover policy changes, initiatively send data to UE to UE, need to write down the context of UE among the ANDSF, generally, because what transmit between UE and the ANDSF is the IP packet, so comprise the IP address of UE in the ANDSF UE context that need write down.When ANDSF need can send the data to UE according to this IP address when UE sends data.
In the EPS network, the IP address of UE generally is by packet data gateway (Packet Data NetworkGateway, P-GW) dynamic assignment, after the UE state variation, from net or release IP address, the IP address of this UE may be assigned to another UE as UE, but, since ANDSF can't perception UE state variation, still write down the context of original UE, so ANDSF may send the data to the UE of a mistake during according to the IP address transmission data of record.The inventor finds prior art in realizing process of the present invention there are the following problems: after the UE state variation, because the state transformation of ANDSF perception in time UE, and then can not delete invalid UE context in time, cause the junk data that writes down among the ANDSF too much, also may send the data to wrong UE.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus of processing user equipment context, makes ANDSF after the UE state variation, can delete invalid UE context in time.
The embodiment of the invention provides a kind of method of processing user equipment context, comprising:
Access network discovery and selection functional entity receive the deletion Indication message after status of user equipment changes;
Access network discovery is deleted the customer equipment context corresponding with described subscriber equipment with selection functional entity according to described deletion Indication message.
The embodiment of the invention also provides a kind of subscriber equipment, comprising:
Receive information updating module, be used to receive Access Network information updating message, carry customer equipment identification in the described Access Network information updating message;
Judge module is used to judge whether the customer equipment identification of reception is identical with the customer equipment identification of record, if not, and the customer equipment context that the indication deletion is corresponding with the customer equipment identification of described reception.
The embodiment of the invention also provides a kind of access network discovery and selection functional entity, is used to collect the network condition information of each access network, comprising:
The accepting state update module is used for changing the back at status of user equipment and receives the deletion Indication message, carries customer equipment identification in the described deletion Indication message;
Removing module is used for the deletion customer equipment context corresponding with described customer equipment identification after receiving described deletion Indication message.
The embodiment of the invention also provides a kind of Wireless Communication Equipment, is used to connect subscriber equipment and access network discovery and selection functional entity, it is characterized in that, comprising:
Address module, the IP address that is used to write down described access network discovery and selection functional entity;
Sending module, after being used to perceive the status of user equipment change, send the deletion Indication message according to described IP address to described access network discovery and selection functional entity, described deletion Indication message is used to indicate described access network discovery and the selection functional entity deletion customer equipment context corresponding with described subscriber equipment.
As shown from the above technical solution, whether ANDSF can change according to the passive UE of the detecting state of this UE sign by carry the UE sign in sending to the packet of UE in the embodiment of the invention, if the UE state changes, then deletes the invalid UE context of preserving; Perhaps, UE changes the back at state and initiatively informs to ANDSF by Wireless Communication Equipment, makes ANDSF know that the UE state changes the invalid UE context that the back deletion is preserved.Therefore, can make the ANDSF invalid UE context of deletion in time, avoid sending data to the UE of mistake by the embodiment of the invention.
Description of drawings
The schematic network structure that Fig. 1 provides for the method embodiment one of processing user equipment context of the present invention;
Fig. 2 is for carrying out the schematic flow sheet that network switches by network configuration shown in Figure 1;
Fig. 3 is the schematic flow sheet of the method embodiment one of processing user equipment context of the present invention;
Fig. 4 obtains the schematic flow sheet of the method one of customer equipment identification for the method embodiment one of processing user equipment context of the present invention;
Fig. 5 obtains the schematic flow sheet of the method two of customer equipment identification for the method embodiment one of processing user equipment context of the present invention;
The schematic network structure that Fig. 6 provides for the method embodiment two of processing user equipment context of the present invention;
Fig. 7 is the schematic flow sheet of the method embodiment two of processing user equipment context of the present invention;
Fig. 8 is the schematic flow sheet of the method one of the method embodiment two Wireless Communication Equipment record ANDSF address of processing user equipment context of the present invention;
Fig. 9 is the schematic flow sheet of the method two of the method embodiment two Wireless Communication Equipment record ANDSF address of processing user equipment context of the present invention;
Figure 10 is the schematic flow sheet of the method three of the method embodiment two Wireless Communication Equipment record ANDSF address of processing user equipment context of the present invention;
Figure 11 is the structural representation of subscriber equipment embodiment of the present invention;
Figure 12 is the structural representation of access network discovery of the present invention and selection functional entity embodiment;
Figure 13 is the structural representation of Wireless Communication Equipment embodiment of the present invention.
Embodiment
The present invention handles the contextual method embodiment of UE and comprises:
Steps A: ANDSF receives the deletion Indication message after the UE state changes.Wherein, the deletion Indication message can change the back at state by UE and send to ANDSF, perhaps can be by ANDSF self-generating after the response that does not receive UE, (specifically can referring to following method embodiment one), perhaps can learn that the UE state changes the back and sends (specifically can referring to following method embodiment two) to ANDSF by Wireless Communication Equipment.
Step B:ANDSF is according to the described deletion Indication message deletion UE context corresponding with described UE.
Below by the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, the schematic network structure for the method embodiment one of processing user equipment context of the present invention provides comprises: belong to subscriber equipment UE11, belong to the ANDSF12 of operator's equipment.UE11 is connected to ANDSF by the IP tunnel that 3GPP access way or credible and incredible non-3GPP access way provide.Reference point interface between UE and the ANDSF is S14, and ANDSF can also be connected to non-3 GPP access network network, information such as the load condition of collection network by the S15 interface.UE can carry out the network switching according to Access Network information and the switchover policy that ANDSF sends.
Referring to Fig. 2,, comprising for carry out the schematic flow sheet that network switches by network configuration shown in Figure 1:
Step 21:UE is connected to an IP access network, obtains the IP address and sets up IP tunnel.This IP access network can be the 3GPP network, and as the EPS network, perhaps this IP access network is non-3GPP network, as WiMax/WLAN network etc.
Step 22:UE obtains the IP address of ANDSF.
Step 23:UE sends the Access Network information request message according to this IP address to ANDSF.
Step 24:ANDSF sends the Access Network info response message that comprises Access Network information and switchover policy to UE.
Step 25:UE carries out access network selection and handover decisions according to this Access Network information and switchover policy.
When the handover decisions condition of step 26:UE satisfied, UE carried out internetwork switching.
According to the principle that network is found and selected, ANDSF can answer the request of UE to send data to UE as mentioned above, can also initiatively send data to UE, after changing at switchover policy, and ANDSF proactive notification UE.At ANDSF are IP addresses according to UE when UE sends data, therefore record the IP address of UE in the UE of ANDSF context.Because the IP address of UE is a dynamic assignment, after the UE state changes, connect release from net or IP as UE, network may be given the IP address assignment of writing down among the ANDSF other UE.If ANDSF is according to the IP address transmission data that writes down in the original UE context, because this IP address has been distributed to another UE probably, so the problem that causes data to be sent out by mistake probably.Simultaneously, discharge because original UE has connected from net or IP, its corresponding UE context is just invalid, and these invalid overabundance of datas of storing in the ANDSF need be after the UE state changes, in time the context of the UE that changes of deletion state.
Referring to Fig. 3, be the schematic flow sheet of the method embodiment one of processing user equipment context of the present invention, this embodiment is need be when UE sends data, according to the feedback deletion UE context of UE at ANDSF.This embodiment comprises:
Step 31:ANDSF sends Access Network information updating message to the UE of the IP address of its record indication, carries the UE sign in the described Access Network information updating message.
Step 35: this UE judges whether the UE sign that receives is identical with the UE sign of record, if, execution in step 36; If not, indication ANDSF deletes the corresponding UE context of UE sign its record and described reception.
Step 36:UE sends Access Network information updating response message to ANDSF, and indication ANDSF upgrades successfully.Be that the UE state does not feed back according to existing procedure when changing.
Wherein, the obtaining and write down and can adopt following method of customer equipment identification:
Referring to Fig. 4, for the method embodiment one of processing user equipment context of the present invention obtains the schematic flow sheet of the method one of customer equipment identification, this method provides customer equipment identification by UE to ANDSF, comprising:
Step 41:UE sends the Access Network information request message to ANDSF, carries the UE sign in this Access Network information request message.This UE sign can be the permanent identification of UE, as international mobile subscriber identity (International Mobile Subscriber Identity, IMSI), travelling carriage integrated services digital network number (Mobile Station Integrated Services Digital Network, MSISDN), network access Identifier (Network Access Identifier, NAI) etc., perhaps this UE sign also can be the temporary mark of Access Network distribution, as global unique temporary identity (Globally UniqueTemporary Identity, GUTI), the grouping Temporary Mobile Station Identity (Packet Temporary MobileStation Identity, P-TMSI) etc.
The UE sign that step 42:ANDSF record UE provides sends the Access Network info response message to UE.
Referring to Fig. 5, for the method embodiment one of processing user equipment context of the present invention obtains the schematic flow sheet of the method two of customer equipment identification, this method provides customer equipment identification by ANDSF, comprising:
Step 51:UE sends the Access Network information request message to ANDSF.
Step 52:ANDSF writes down this UE sign, as is recorded in the UE context corresponding with this UE for this UE distributes a unique UE sign.
Step 53:ANDSF sends the Access Network info response message to UE, carries the UE sign that ANDSF distributes in this Access Network info response message.
After step 54:UE received this Access Network info response message, the ANDSF that record wherein carries was the UE sign that UE distributes.
Wherein, the indication ANDSF deletion UE context corresponding with the UE sign of described reception can specifically comprise:
Step 391:UE sends the wrong deletion Indication message of indication UE sign or abandons described Access Network information updating message to ANDSF.If directly abandon described Access Network information updating message, ANDSF will can not receive response message that should Access Network information updating message, and ANDSF is not if receive response in Preset Time, then self-generating deletion Indication message.
UE context among the step 392:ANDSF deletion ANDSF.ANDSF can delete corresponding UE context behind the deletion Indication message that receives described indication customer equipment identification mistake, perhaps, ANDSF can also delete corresponding UE context according to the deletion Indication message of self-generating after not receiving Access Network information updating response message.
Above-mentioned flow process shows packet and the UE support ANDSF function that correctly receives the ANDSF transmission as UE, when just the IP address of this UE may be assigned to another UE, and the method that ANDSF handles the UE context.Owing to also may exist UE not support the ANDSF function maybe may correctly not receive the problem of packet, so this embodiment can further include after step 31:
Step 32:UE judges whether the purpose IP address of carrying in the Access Network information updating message is its own IP address, if, execution in step 33; If not, execution in step 34.Owing to communicate by IP tunnel between UE and the ANDSF, so also carry purpose IP address in this Access Network information updating message.
Step 33:UE judges whether to discern described Access Network information updating message, if, execution in step 35, if not, execution in step 34.
Step 34:UE abandons described Access Network information updating message, so ANDSF can not receive Access Network information updating response message.Execution in step 392.
Simultaneously, in order to guarantee to delete the contextual promptness of invalid UE, present embodiment can further include after step 36:
After step 37:ANDSF receives the successful Access Network information updating response message of indication renewal, upgrade the timestamp of its record.Can write down a timestamp in the UE context that writes down among the ANDSF, after receiving the successful Access Network information updating response message of above-mentioned indication renewal or receiving the UE request, upgrade the timestamp that writes down in the context of this UE, make current UE be in activated state.Simultaneously, can start one among this ANDSF, can judge the time that the UE context does not upgrade according to the timestamp that writes down in this timer and the UE context based on the timer of realizing.
Step 38: after the time that the UE context does not upgrade reaches a default threshold value, execution in step 392.
Present embodiment is by carrying customer equipment identification at ANDSF in the data that UE sends, whether the state that can determine UE according to this customer equipment identification changes, after the UE state changes, UE can make corresponding feedback to ANDSF, make ANDSF know that the UE state changes, and then making the invalid UE context of ANDSF deletion, the junk data of avoiding storing too much reaches the problem that sends data to the UE of mistake.And present embodiment is to carry out the judgement whether the UE state changes at ANDSF when UE sends data, is implemented in making ANDSF delete invalid UE context in time under the less situation of existing network change.
Referring to Fig. 6, the schematic network structure for the method embodiment two of processing user equipment context of the present invention provides comprises: belong to the UE11 of subscriber equipment, the ANDSF12 that belongs to operator's equipment and Wireless Communication Equipment 13.UE11 carries out information interaction by Wireless Communication Equipment 13 with ANDSF12.UE need be registered in the IP Access Network before carrying out alternately with ANDSF, obtained the IP address and set up an IP tunnel, and afterwards, UE utilizes this IP address and ANDSF to carry out alternately.ANDSF links to each other with Wireless Communication Equipment by IP network, as, if Wireless Communication Equipment is the Access Network gateway, ANDSF links to each other with the Access Network gateway by the S16 interface, if Wireless Communication Equipment is mobile management entity (MobilityManagement Entity, MME) or service universal grouping wireless business supporting node (ServingGeneral Packet Radio Service Support Node, SGSN), ANDSF links to each other with MME/SGSN by the S17 interface; And in Access Network inside, UE sets up two layers with Wireless Communication Equipment and is connected the transmission of IP data bag.Therefore when UE behind net or release IP address, Wireless Communication Equipment can perceive the state variation of this UE, thereby the change of this UE state can be notified to ANDSF.
Referring to Fig. 7, schematic flow sheet for the method embodiment two of processing user equipment context of the present invention, this embodiment is a Wireless Communication Equipment perceiving after the UE state changes, and this state variation is initiatively reported ANDSF, makes ANDSF according to this state variation that initiatively reports deletion UE context.This embodiment comprises:
Step 71: Wireless Communication Equipment sends the deletion Indication message to ANDSF after perceiving the change of UE state, carry the UE sign in the described deletion Indication message.This UE sign can be permanent identification (IMSI, MSISDN, NAI etc.), the temporary mark (GUTI, TMSI, IP address etc.) of UE.
Step 72:ANDSF deletion and the corresponding UE context of described UE sign.
Step 73:ANDSF upgrades response message to the Wireless Communication Equipment transmit status.It is optional that this state upgrades response message.
Produce because the deletion Indication message changes the back at the UE state, therefore, present embodiment may further include before step 71:
Step 70: after Wireless Communication Equipment perceives the change of UE state, delete Indication message to the ANDSF transmission according to the IP address of the ANDSF that writes down.
Wherein, because Wireless Communication Equipment need send described deletion Indication message to ANDSF, so Wireless Communication Equipment need write down the IP address of ANDSF.Can adopt following method to realize the IP address of Wireless Communication Equipment record ANDSF:
Referring to Fig. 8, write down the schematic flow sheet of the method one of ANDSF address for method embodiment two Wireless Communication Equipment of processing user equipment context of the present invention, Wireless Communication Equipment in this method is the Access Network gateway, and as P-GW, ASN-GW, PDG etc., this method comprises:
Step 81:UE sends the Access Network information request message to ANDSF, and this Access Network information request message is packaged into the two layer tunnel of IP packet by Access Network and sends to the Access Network gateway.Because this packet sends to ANDSF, so the destination address of this IP packet is the IP address of ANDSF.
Step 82: the Access Network gateway is resolved this packet and is obtained purpose IP address, this purpose IP address is recorded in the UE context of Access Network gateway record.
Step 83: the Access Network gateway sends to ANDSF with this Access Network information request message.
Said method is that Access Network is resolved the packet that UE sends to ANDSF, and the purpose IP address of writing down this packet alternately, also can be that Access Network is resolved ANDSF to the packet that UE sends, and writes down the source IP address of this packet.
Referring to Fig. 9, write down the schematic flow sheet of the method two of ANDSF address for method embodiment two Wireless Communication Equipment of processing user equipment context of the present invention, Wireless Communication Equipment in this method is the Access Network gateway, and as P-GW, ASN-GW, PDG etc., this method comprises:
Step 91:ANDSF sends the Access Network info response message to UE, and this Access Network info response message corresponding IP data bag is sent to the Access Network gateway earlier.Because the Access Network gateway is the Access Network router of UE, so this packet can be sent to the Access Network gateway earlier.And because this Access Network info response message sends to UE by ANDSF, so the source IP address of Access Network info response message corresponding IP data bag is the IP address of ANDSF, and purpose IP address is the IP address of UE.
Step 92: the Access Network gateway is resolved the packet of this Access Network info response message correspondence, obtains source IP address, this source IP address is recorded in the UE context of Access Network gateway record.
Step 93: the Access Network gateway sends to UE with this Access Network info response message.
Method shown in Fig. 8,9 is that the Access Network gateway is by resolving the IP address that interactive messages is obtained ANDSF between UE and the ANDSF.
Referring to Figure 10, write down the schematic flow sheet of the method three of ANDSF address for method embodiment two Wireless Communication Equipment of processing user equipment context of the present invention, Wireless Communication Equipment in this method is the Access Network gateway, and as P-GW, ASN-GW, PDG etc., this method comprises:
Step 101:UE sends Access Network information request message, the IP address of carrying the Access Network gateway of UE network of living in this Access Network information request message to ANDSF.
Step 102:ANDSF sends the Access Network info response message to UE, and Access Network information and switchover policy are sent to UE.
Step 103:ANDSF is according to the IP address of the Access Network gateway that carries in the Access Network information request message, sends login request message to the Access Network gateway, with the IP address registration of ANDSF in the Access Network gateway.Can carry the UE sign in this login request message, as permanent identification (IMSI, MSISDN, NAI etc.), the temporary mark (GUTI, TMSI, IP address etc.) of UE.The source IP address of this login request message IP packet can directly be used in the IP address of ANDSF, perhaps increases the IP address of independent cell record ANDSF in message body.
Step 104: the Access Network gateway is resolved the IP address that this login request message IP packet obtains ANDSF, and according to the UE context in the definite Access Network gateway of UE sign that carries in the login request message, thereby the IP address of ANDSF is recorded in this UE context.
Step 105: the Access Network gateway sends registration reply message to ANDSF.This registration reply message is optional.
Method shown in Figure 10 be ANDSF initiatively to the Access Network gateway registration, make the Access Network gateway obtain the IP address of ANDSF.
Wireless Communication Equipment in the method shown in Fig. 8,9,10 is the Access Network gateway, in the 3GPP network, ANDSF can also carry out alternately with MME/SGSN, as in the EPS network, ANDSF and MME are mutual, at GSM EDGE Radio Access Network (GSM EDGE Radio Access Network, GERAN) or Universal Terrestrial Radio Access Network (Universal Terrestrial Radio Access Network, UTRAN) packet-switched domain (Packet Switched, PS) in, ANDSF and SGSN are mutual.
Because MME/SGSN is the chain of command anchor point of UE in the 3GPP network, when UE during from net MME/SGSN can learn that the UE state changes the very first time, MME/SGSN also can initiatively initiate the operation of separates UE.From net or initiatively during separates UE, the IP address of the ANDSF by record sends the deletion Indication message to ANDSF to MME/SGSN at UE, and indication ANDSF deletes corresponding UE context.
Because ANDSF is deployed in the carrier network, so the IP address of ANDSF can be used as the part of subscription data, thereby can be pre-configured to be among the UE, also can be pre-configured to be among the HLR/HSS, can also directly be pre-configured to be among the MME/SGSN.Therefore, when UE was registered to the 3GPP network, MME/SGSN can adopt following mode to write down the IP address of ANDSF:
Mode one, UE send Attach Request message to MME/SGSN, carry the IP address of the ANDSF that is pre-configured to be among the UE in this Attach Request message; MME/SGSN is recorded in this IP address in the context of this UE.
After mode two, MME/SGSN receive the Attach Request message or location area updating request message of UE transmission, obtain the subscription data of this UE to HLR/HSS, carry the IP address of pre-configured ANDSF in this subscription data, this IP address is recorded in the context of UE.
After mode three, current MME/SGSN receive the Attach Request message or location area updating request message of UE transmission, to the IP address that the MME/SGSN of the previous registration of this UE obtains ANDSF pre-configured among the MME/SGSN of this previous registration, as the MME/SGSN of previous registration the IP address of the ANDSF in the UE context of its record is sent to current MME/SGSN, current MME/SGSN is recorded in this IP address in the context of UE.
The IP address of mode four, the direct pre-configured ANDSF of current MME/SGSN, when UE is registered to this MME/SGSN first, as after receiving Attach Request message or location area updating request message, current MME/SGSN records the IP address of pre-configured ANDSF in the context of this UE.
In the present embodiment, Wireless Communication Equipment sends the invalid contextual message of UE of indication deletion to ANDSF at once after perceiving the change of UE state, can make ANDSF that the UE state is changed to make rapidly and react, and makes ANDSF immediately delete invalid UE context.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Figure 11 is the structural representation of subscriber equipment embodiment of the present invention, and this embodiment comprises: receive information updating module 1101 and judge module 1102.Receive information updating module 1101 and be used to receive the Access Network information updating message that ANDSF sends, carry the UE sign in this Access Network information updating message; Judge module 1102 is used to judge whether the UE sign of reception is identical with the UE sign of record, and if not, indication ANDSF deletes the corresponding UE context of UE sign with described reception.
Wherein, the UE of record sign can be the UE sign that writes down in advance in the subscriber equipment equipment at this device place in the judge module 1102, permanent identification (IMSI as UE, MSISDN, NAI etc.), temporary mark (GUTI, TMSI, IP address etc.), perhaps, the UE of this record sign can be that judge module 1102 receives the UE sign that ANDSF distributes for this UE, and notes this UE sign.
Simultaneously, judge module 1102 identifies when identical at the UE sign of judging reception and the UE that writes down, send indication to ANDSF and upgrade successful Access Network information updating response message, ANDSF receives renewal after the successful message of this indication renewal, and it is recorded in timestamp in the UE context.ANDSF determines the time that the UE context does not upgrade according to timestamp, after the time that the UE context does not upgrade reaches a default threshold value, deletes this UE context.
Present embodiment is by the customer equipment identification of relatively reception and the customer equipment identification of record, can when changing, the UE state delete invalid UE context by (when the customer equipment identification of reception and the customer equipment identification of record are inconsistent) indication ANDSF, make the timely disposal of refuse data of ANDSF, avoid the wrong problem of sending out of data.
Figure 12 is the structural representation of access network discovery of the present invention and selection functional entity embodiment, and this embodiment is deployed in the carrier network, is used to collect the network condition information of each access network, comprising: accepting state update module 1201 and removing module 1202.Accepting state update module 1201 is used to receive the deletion Indication message that carries the UE sign, and described deletion Indication message is that Wireless Communication Equipment is perceiving UE state change back transmission; Removing module 1202 is used for deletion and the corresponding UE context of described UE sign after receiving described deletion Indication message.
Under passive detection mode, ANDSF sends Access Network information updating message to UE, carry the UE sign in this message, if it is inconsistent with the UE sign of self record that UE judges this UE that carries sign, then send the deletion Indication message or abandon this Access Network information updating message to ANDSF, for abandoning situation, ANDSF can not receive the response message of UE, if ANDSF receives response message in a default time Indication message is not deleted in self-generating.
Under active indication situation, Wireless Communication Equipment initiatively sends the deletion Indication message to ANDSF after perceiving the change of UE state.
No matter ANDSF receives the deletion Indication message that UE sends, still receive the deletion Indication message that wireless device sends, still do not delete Indication message owing to receive the response message self-generating, all can be according to the corresponding UE context of deletion Indication message deletion.
Present embodiment can be deleted invalid UE context in time after the UE state changes, the quantity of the junk data that reduces to store among the ANDSF avoids ANDSF to send data to the UE of mistake.
Figure 13 is the structural representation of Wireless Communication Equipment embodiment of the present invention, this embodiment can be deployed in the carrier network, communicate to connect with UE and ANDSF, after perceiving the change of UE state, send the deletion Indication message to ANDSF, carry the UE sign in the described deletion Indication message, make ANDSF delete corresponding UE context according to this deletion Indication message.
This embodiment comprises: address module 1301 and sending module 1302; Address module 1301, the IP address that is used to write down described ANDSF; Sending module 1302 after being used to perceive the UE state and changing, sends described deletion Indication message according to described IP address to described ANDSF.
Concrete, Wireless Communication Equipment can be the Access Network gateway.Address module in the corresponding Access Network gateway is resolved the IP packet that UE sends to ANDSF, obtains the purpose IP address that this UE sends to the IP packet of ANDSF, this purpose IP address is recorded in the UE context of Access Network gateway preservation.Perhaps, the address module in the Access Network gateway is resolved the IP packet that ANDSF sends to UE, obtains the source IP address that this ANDSF sends to the IP packet of UE, this source IP address is recorded in the UE context of Access Network gateway preservation.Perhaps, UE and ANDSF are advanced, and line data is mutual, UE carries the IP address of Access Network gateway in sending to the Access Network information request message of ANDSF, ANDSF sends login request message according to the IP address of this Access Network gateway to the Access Network gateway, address module in the Access Network gateway is resolved this login request message packet, obtain source IP address, this source IP address is the IP address of ANDSF, this source IP address is recorded in the UE context of Access Network gateway preservation.
Perhaps, Wireless Communication Equipment is MME/SGSN.The part that the IP address of ANDSF can be used as subscription data is pre-configured to be among the UE, perhaps is pre-configured to be among the HLR/HSS, perhaps is pre-configured to be among the MME/SGSN.The following mode that can adopt corresponding M ME/SGSN writes down the IP address of ANDSF:
Mode one, be applicable to that the IP address of ANDSF is pre-configured to be among the UE.The address module of MME/SGSN receives the Attach Request message that UE sends, and the IP address of carrying pre-configured ANDSF in the described Attach Request message is recorded in this IP address in the context of this UE of its preservation.
Mode two, be applicable to that the IP address of ANDSF is pre-configured to be among the HLR/HSS.After the address module of MME/SGSN receives the Attach Request message or location area updating request message of UE transmission, obtain the subscription data of described subscriber equipment to HLR/HSS, carry the IP address of pre-configured ANDSF in the described subscription data, this IP address is recorded in the context of this UE of its preservation.
Mode three, the IP address that is applicable to ANDSF are pre-configured to be among the MME/SGSN of the previous registration of UE.After the address module of MME/SGSN receives the Attach Request message or location area updating request message of UE transmission, to the IP address that the MME/SGSN of the previous registration of described UE obtains ANDSF pre-configured among the MME/SGSN of described previous registration, this IP address is recorded in the context of this UE of its preservation.
Mode four, be applicable to that the IP address of ANDSF is pre-configured to be among the MME/SGSN of the current registration of UE.After the address module of MME/SGSN receives the Attach Request message or location area updating request message that UE sends, the IP address of pre-configured ANDSF is recorded in the context of this UE of its preservation.
In the present embodiment, Wireless Communication Equipment perceives deletes the contextual message of invalid UE to ANDSF transmission indication ANDSF after the UE state changes, make ANDSF can delete invalid UE context in time, avoid the junk data of storing excess among the ANDSF, avoid ANDSF to send data to the UE of mistake.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (20)
1, a kind of method of processing user equipment context is characterized in that, comprising:
Access network discovery and selection functional entity receive the deletion Indication message after status of user equipment changes;
Access network discovery is deleted the customer equipment context corresponding with described subscriber equipment with selection functional entity according to described deletion Indication message.
2, the method for processing user equipment context according to claim 1 is characterized in that, also comprises:
Subscriber equipment receives Access Network information updating message, carries customer equipment identification in the described Access Network information updating message;
Subscriber equipment judges whether the customer equipment identification that receives is identical with the customer equipment identification of record, if not, sends the deletion Indication message or abandons described Access Network information updating message to described access network discovery and selection functional entity;
If described access network discovery and selection functional entity do not receive and described Access Network information updating message corresponding response, then Indication message is deleted in self-generating.
3, the method for processing user equipment context according to claim 2 is characterized in that, also comprises:
Access network discovery and selection functional entity receive the Access Network information request message, carry customer equipment identification in the described Access Network information request message;
Access network discovery is recorded in the customer equipment identification that carries in the corresponding customer equipment context with selection functional entity;
Access network discovery and selection functional entity send Access Network information updating message, carry the customer equipment identification that writes down in the described customer equipment context in the described Access Network information updating message.
4, the method for processing user equipment context according to claim 2 is characterized in that, also comprises:
Access network discovery and selection functional entity receive the Access Network information request message;
Access network discovery and selection functional entity are the user equipment allocation customer equipment identification, are recorded in the corresponding customer equipment context;
Access network discovery and selection functional entity send the Access Network info response message to described subscriber equipment, carry the customer equipment identification of distribution in the described Access Network info response message;
Subscriber equipment writes down the customer equipment identification of described distribution;
Access network discovery and selection functional entity send Access Network information updating message, carry the customer equipment identification that writes down in the described customer equipment context in the described Access Network information updating message.
5, the method for processing user equipment context according to claim 2 is characterized in that:
If the customer equipment identification that receives is identical with the customer equipment identification of record, subscriber equipment sends the successful Access Network information updating response message of indication renewal to access network discovery and selection functional entity;
After access network discovery and selection functional entity receive described Access Network information updating response message, the timestamp of new record more;
Access network discovery and selection functional entity are determined the time that described customer equipment context does not upgrade according to described timestamp, after the described time reaches a default threshold value, delete described customer equipment context.
6, the method for processing user equipment context according to claim 2 is characterized in that, also carries purpose IP address in the described Access Network information updating message, and this method also comprises:
Subscriber equipment judges that whether described purpose IP address is self IP address, if not, abandons described Access Network information updating message.
7, the method for processing user equipment context according to claim 2 is characterized in that, also comprises:
Subscriber equipment judges whether to discern described Access Network information updating message, if not, abandons described Access Network information updating message.
8, the method for processing user equipment context according to claim 1 is characterized in that, also comprises:
Wireless Communication Equipment is carried customer equipment identification perceiving status of user equipment change back to described access network discovery and selection functional entity transmission deletion Indication message in the described deletion Indication message;
Access network discovery and the selection functional entity deletion customer equipment context corresponding with described customer equipment identification.
9, the method for processing user equipment context according to claim 8 is characterized in that, described Wireless Communication Equipment is the Access Network gateway, and this method also comprises:
The IP address of Access Network gateway record access network discovery and selection functional entity;
The Access Network gateway sends described deletion Indication message according to described IP address to described access network discovery and selection functional entity after perceiving the status of user equipment change.
10, the method for processing user equipment context according to claim 9 is characterized in that, the IP address of described Access Network gateway record access network discovery and selection functional entity specifically comprises:
The Access Network gateway is resolved first packet that subscriber equipment sends to access network discovery and selection functional entity, and described purpose IP address is write down in the purpose IP address that obtains described first packet; Perhaps
Access Network gateway parsing access network discovery and selection functional entity send to second packet of subscriber equipment, obtain the source IP address of described second packet, write down described source IP address; Perhaps
Access network discovery and selection functional entity receive the Access Network information request message that subscriber equipment sends, the IP address of carrying the Access Network gateway of described subscriber equipment place network in the described Access Network information request message; Access network discovery and selection functional entity send the login request message packet according to the IP address of described Access Network gateway to described Access Network gateway, carry the IP address of access network discovery and selection functional entity in the described login request message packet; The Access Network gateway writes down the access network discovery that carries in the described login request message packet and the IP address of selection functional entity.
11, the method for processing user equipment context according to claim 8 is characterized in that, described Wireless Communication Equipment is mobile management entity or service universal grouping wireless business supporting node MME/SGSN, and this method also comprises:
The IP address of MME/SGSN record access network discovery and selection functional entity;
MME/SGSN sends described deletion Indication message according to described IP address to described access network discovery and selection functional entity after perceiving the status of user equipment change.
12, the method for processing user equipment context according to claim 11 is characterized in that, the IP address of described MME/SGSN record access network discovery and selection functional entity specifically comprises:
MME/SGSN receives the Attach Request message that subscriber equipment sends, and carries the IP address of pre-configured access network discovery and selection functional entity in the described Attach Request message, writes down described IP address; Perhaps
After MME/SGSN receives the Attach Request message or location area updating request message of subscriber equipment transmission, obtain the subscription data of described subscriber equipment to attaching position register or home subscriber server, carry the IP address of pre-configured access network discovery and selection functional entity in the described subscription data, write down described IP address; Perhaps
After MME/SGSN receives the Attach Request message or location area updating request message of subscriber equipment transmission, to the IP address that the MME/SGSN of the previous registration of described subscriber equipment obtains access network discovery pre-configured among the MME/SGSN of described previous registration and selection functional entity, write down described IP address; Perhaps
MME/SGSN writes down the pre-configured access network discovery corresponding with described subscriber equipment and the I P address of selection functional entity after receiving the Attach Request message or location area updating request message of subscriber equipment transmission.
13, a kind of subscriber equipment is characterized in that, comprising:
Receive information updating module, be used to receive Access Network information updating message, carry customer equipment identification in the described Access Network information updating message;
Judge module is used to judge whether the customer equipment identification of reception is identical with the customer equipment identification of record, if not, and the customer equipment context that the indication deletion is corresponding with the customer equipment identification of described reception.
14, subscriber equipment according to claim 13 is characterized in that: record customer equipment identification in the described judge module in advance, perhaps, described judge module receives and writes down the customer equipment identification of access network discovery and selection functional entity distribution.
15, subscriber equipment according to claim 13, it is characterized in that: described judge module is when the customer equipment identification of the customer equipment identification of judging reception and record is identical, send the successful Access Network information updating response message of indication renewal to access network discovery and selection functional entity, described Access Network information updating response message is used to upgrade the timestamp of described access network discovery and selection functional entity record, described timestamp is used for the time that definite described customer equipment context does not upgrade, after the described time of not upgrading reached a default threshold value, access network discovery and selection functional entity were deleted described customer equipment context.
16, a kind of access network discovery and selection functional entity, the network condition information that is used to collect each access network is characterized in that, comprising:
The accepting state update module is used for changing the back at status of user equipment and receives the deletion Indication message, carries customer equipment identification in the described deletion Indication message;
Removing module is used for the deletion customer equipment context corresponding with described customer equipment identification after receiving described deletion Indication message.
17, access network discovery according to claim 16 and selection functional entity is characterized in that:
Described accepting state update module is used to receive subscriber equipment and changes the deletion Indication message that the back sends at state; Perhaps
Described accepting state update module is used to receive Wireless Communication Equipment and is perceiving the deletion Indication message that sends after status of user equipment changes; Perhaps
Described accepting state update module is used for self-generating deletion Indication message after not receiving the response message of subscriber equipment.
18, a kind of Wireless Communication Equipment is used to connect subscriber equipment and access network discovery and selection functional entity, it is characterized in that, comprising:
Address module, the IP address that is used to write down described access network discovery and selection functional entity;
Sending module, after being used to perceive the status of user equipment change, send the deletion Indication message according to described IP address to described access network discovery and selection functional entity, described deletion Indication message is used to indicate described access network discovery and the selection functional entity deletion customer equipment context corresponding with described subscriber equipment.
19, Wireless Communication Equipment according to claim 18 is characterized in that:
Described Wireless Communication Equipment is the Access Network gateway;
Described address module is resolved first packet that terminal sends to access network discovery and selection functional entity, and described purpose IP address is write down in the purpose IP address that obtains described first packet; Perhaps
Described address module parsing access network discovery and selection functional entity send to second packet of terminal, obtain the source IP address of described second packet, write down described source IP address; Perhaps
Described address module receives the registration message packet of access network discovery and selection functional entity transmission, writes down the source IP address of described registration message packet.
20, Wireless Communication Equipment according to claim 18 is characterized in that:
Described Wireless Communication Equipment is mobile management entity or service universal grouping wireless business supporting node MME/SGSN;
The Attach Request message that described address module receiving terminal sends carries the IP address of pre-configured access network discovery and selection functional entity in the described Attach Request message, write down described IP address; Perhaps
After described address module receives the Attach Request message or location area updating request message of terminal transmission, obtain the subscription data of described terminal to attaching position register or home subscriber server, carry the IP address of pre-configured access network discovery and selection functional entity in the described subscription data, write down described IP address; Perhaps
After described address module receives the Attach Request message or location area updating request message of terminal transmission, to the IP address that the MME/SGSN of the previous registration of described terminal obtains access network discovery pre-configured among the MME/SGSN of described previous registration and selection functional entity, write down described IP address; Perhaps
Described address module writes down the access network discovery corresponding with described terminal pre-configured among the MME/SGSN of the current registration of terminal and the IP address of selection functional entity after receiving the Attach Request message or location area updating request message of terminal transmission.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063626.8A CN102595388B (en) | 2008-04-30 | 2008-04-30 | The method and apparatus of processing user equipment context |
| CN2008101057694A CN101572863B (en) | 2008-04-30 | 2008-04-30 | Method and device for processing user equipment context |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101057694A CN101572863B (en) | 2008-04-30 | 2008-04-30 | Method and device for processing user equipment context |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210063626.8A Division CN102595388B (en) | 2008-04-30 | 2008-04-30 | The method and apparatus of processing user equipment context |
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| CN101572863A true CN101572863A (en) | 2009-11-04 |
| CN101572863B CN101572863B (en) | 2012-04-04 |
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| CN2008101057694A Active CN101572863B (en) | 2008-04-30 | 2008-04-30 | Method and device for processing user equipment context |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102264057A (en) * | 2011-08-17 | 2011-11-30 | 电信科学技术研究院 | Method and device for processing mobile management context |
| WO2012025018A1 (en) * | 2010-08-25 | 2012-03-01 | 电信科学技术研究院 | Method and device for processing imsi paging messages |
| CN102595388A (en) * | 2008-04-30 | 2012-07-18 | 华为技术有限公司 | Method and device for processing UE context |
| CN102845031A (en) * | 2010-01-27 | 2012-12-26 | 华为技术有限公司 | Method, apparatus and system for processing node failure |
| CN103857003A (en) * | 2012-11-30 | 2014-06-11 | 上海贝尔股份有限公司 | Method for accessing wireless local area network for user equipment and device thereof |
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| CN100394827C (en) * | 2004-09-10 | 2008-06-11 | 上海贝尔阿尔卡特股份有限公司 | Anti-activating method and related apparatus for multi-media and multiple-broadcasting service |
| CN1905569A (en) * | 2005-07-29 | 2007-01-31 | 北京三星通信技术研究有限公司 | Method for changing user IP address of mobile communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595388A (en) * | 2008-04-30 | 2012-07-18 | 华为技术有限公司 | Method and device for processing UE context |
| CN102845031A (en) * | 2010-01-27 | 2012-12-26 | 华为技术有限公司 | Method, apparatus and system for processing node failure |
| CN102845031B (en) * | 2010-01-27 | 2014-04-16 | 华为技术有限公司 | Method, apparatus and system for processing node failure |
| US8787226B2 (en) | 2010-01-27 | 2014-07-22 | Huawei Technologies Co., Ltd. | Method, apparatus and system for handling node failure |
| US9094857B2 (en) | 2010-01-27 | 2015-07-28 | Huawei Technologies Co., Ltd. | Method, apparatus and system for handling node failure |
| WO2012025018A1 (en) * | 2010-08-25 | 2012-03-01 | 电信科学技术研究院 | Method and device for processing imsi paging messages |
| CN102378146A (en) * | 2010-08-25 | 2012-03-14 | 电信科学技术研究院 | Method and equipment for processing international mobile subscriber identity (IMSI) Paging message |
| CN102378146B (en) * | 2010-08-25 | 2014-12-17 | 电信科学技术研究院 | Method and equipment for processing international mobile subscriber identity (IMSI) Paging message |
| CN102264057A (en) * | 2011-08-17 | 2011-11-30 | 电信科学技术研究院 | Method and device for processing mobile management context |
| CN102264057B (en) * | 2011-08-17 | 2013-12-25 | 电信科学技术研究院 | Method and device for processing mobile management context |
| CN103857003A (en) * | 2012-11-30 | 2014-06-11 | 上海贝尔股份有限公司 | Method for accessing wireless local area network for user equipment and device thereof |
| CN103857003B (en) * | 2012-11-30 | 2018-12-18 | 上海诺基亚贝尔股份有限公司 | A kind of method and apparatus for accessing Wireless LAN for user equipment |
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| CN101572863B (en) | 2012-04-04 |
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