CN101052212B - Method for re-attaching network of mobile terminal - Google Patents
Method for re-attaching network of mobile terminal Download PDFInfo
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- CN101052212B CN101052212B CN2006100729110A CN200610072911A CN101052212B CN 101052212 B CN101052212 B CN 101052212B CN 2006100729110 A CN2006100729110 A CN 2006100729110A CN 200610072911 A CN200610072911 A CN 200610072911A CN 101052212 B CN101052212 B CN 101052212B
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Abstract
The method comprises: when the serving core network equipment attached by a mobile terminal fails, the standby core network equipment previously appointed by the serving core network pagings the mobile terminal to indicate the mobile to re-execute a network attachment. By the invention, when the serving core network equipment fails, the mobile terminal attached to said serving core network equipment can be rapidly attached to the another core-network equipment.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of method of re-attaching network of mobile terminal.
Background technology
(Universal Mobile Telecommunications System UMTS) is a kind of third generation cordless communication network of 3GPP tissue definition to universal mobile telecommunications system.The UMTS network is made up of core net, wireless access network and subscriber equipment.Core net comprises circuit domain and packet domain, and circuit domain provides based on Circuit-switched business (for example speech business), and packet domain provides the business based on packet switching (for example Internet visit).Wireless access network provides wireless air interface, and subscriber equipment is the terminal equipment that the user uses.
Referring to Fig. 1, be UMTS schematic network structure of the prior art.Because the present invention only relates to the packet domain of core net, so the circuit domain of core net part is omitted in Fig. 1.Packet domain core network is by Serving GPRS Support Node (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (Gateway GPRS Support, GGSN) and attaching position register (Home Location Register HRL) forms; (Radio Network Controller RNC) forms with cell base station NodeB wireless access network by radio network controller.Each RNC can connect several NodeB, and each SGSN can connect several RNC.Being Iub interface between NodeB and the RNC, is the Iu interface between RNC and the SGSN, is Gn or gp interface between SGSN and the GGSN, GGSN and packet data network (Packet DataNetwork, PDN) being the Gi interface between, is Gr interface between SGSN and the HLR, is the Gc interface between GGSN and the HLR.PDN is the general name of outer all packet data network of UMTS network, and it can be Internet network or enterprise network etc.The wireless access network of forming by RNC and NodeB in the UMTS network, be called as the UMTS Terrestrial radio access network network (UMTS Terrestrial Radio AccessNetwork, UTRAN).Wherein, the Iu interface is the key interface of wireless access network and core net, and the management of Radio Resource and control are isolated in the Access Network by the Iu interface, makes core net that professional providing only is provided.
Current, 3GPP organizes and studies the UMTS network next generation network of evolution (being also referred to as evolvement network) backward, and formulates the technical standard of evolvement network.Evolvement network has a lot of new characteristics, and for example: the packet-type business only is provided, and real time business such as voice, visual telephone also will provide in the mode of grouping; Realize complete IP network, each node device interconnects by IP network in the network, and each portable terminal adheres to distributing IP address, back; The topological structure of evolvement network can improve the reliability of network.
Referring to Fig. 2, be the chief component schematic diagram of evolvement network in the prior art.Evolvement network is made up of three parts: and evolution wireless access network E-RAN (Evolved Radio Access Network), evolution block core net (Evolved Packet Core, EPC) and travelling carriage (Mobile Station, MS, i.e. portable terminal).Three logical functional entities are arranged among the EPC: Mobility Management Entity (Mobility ManagementEntity, MME), user entity (UserPlane Entity, anchor point UPE) and between connecting system (InterAS Anchor, IASA).MME is used to realize mobile management, UPE is used to realize the processing of packet sessions management and user plane packets data, IASA is used to realize the access of evolvement network and external packet data network PDN, and switching and roaming function between evolvement network and other the non-3GPP networks (as WLAN (wireless local area network) WLAN).E-RAN mainly provides wireless air interface (for example wireless channel), and the relevant function (for example power control, RRM) of Radio Resource.Be the S1 interface between E-RAN and the EPC, the interface between EPC and the external packet data network PDN is the Gi interface.
How three logical functional entity MME, UPE are deployed in different physical equipments with IASA, and the 3GPP tissue does not determine that at present four kinds of possible modes are arranged,
Three logical functional entities of mode one: MME/UPE/IASA are positioned at same physical equipment;
Mode two: MME/UPE is incorporated in a physical equipment, and IASA is positioned at another physical equipment;
Mode three: UPE and IASA are incorporated in a physical equipment, and MME is positioned at another physical equipment;
Three entities of mode four: MME/UPE/IASA are separated from each other;
The present invention is applicable to above four kinds of modes, and in order more clearly to describe technical characterictic of the present invention, the present invention is an example in mode two, and promptly as shown in Figure 2, MME/UPE is incorporated in a physical equipment, and IASA is positioned at another physical equipment.
Referring to Fig. 3, be the MME/UPE pond networking structure of evolvement network in the prior art.In the evolvement network networking structure, equipment rooms such as E-RAN, MME/UPE and InterAS Anchor adopt the interconnection of IP transmission network, are the interconnected relationship of multi-to-multi between E-RAN and the MME/UPE, i.e. an E-RAN and several MME/UPE interconnection.Some MME/UPE equipment are formed a MME/UPE pond, form pool area (Pool Area) with the area of coverage of the E-RAN of all MME/UPE interconnection in the MME/UPE pond.Adopt the IP network interconnection between E-RAN and the MME/UPE, arbitrarily E-RAN and MME/UPE interconnection arbitrarily.In addition, different pool areas can be overlapping, promptly E-RAN can be simultaneously with different MME/UPE pond in the MME/UPE interconnection.Also be to adopt the IP network interconnection between Inter AS Anchor and the MME/UPE, only mark out the networking structure of an InterAS Anchor among Fig. 3.
MS is in a pool area, provide access service by identical MME/UPE for it, be that MS moves in same pool area, even the E-RAN that inserts changes, but for the MME/UPE of its service (being called " serving MME/UPE ") remains unchanged (in particular cases, for example when MME/UPE transships, part MS will be transferred to the lower MME/UPE of other loads, and provide service by new MME/UPE for UE).MS during the original execution network attachment, is that MS selects serving MME/UPE by E-RAN in pool area.E-RAN can select the serving MME/UPE of MME/UPE as MS according to static configuration data or poll or load information.
In evolvement network, must search for and select network earlier and carry out network attachment after the MS start, the business that MS could use evolvement network to provide successfully is provided after the evolvement network.Network attachment is exactly the process that MS is registered to EPC.In the network attachment process, evolvement network carries out authentication to MS, distributes temporary mark and IP address, creates communication context information, sets up default IP carrying for MS then.Default IP carrying is mainly used in the IP of " always online " is provided Packet Service, and transmission is to the user data of the business game and the no specific (special) requirements of chargeing, for example business that need not charge, IMS register command data etc.
Referring to Fig. 4, be the network attachment schematic flow sheet of evolvement network in the prior art, the step that MS carries out network attachment comprises:
1, start back MS search network.If find plurality of network (for example: UMTS network, evolvement network), MS need select suitable network.At this, MS has selected evolvement network (having exceeded the scope of the invention about how selecting network, this ominous stating).
2, MS sends Attach Request message to MME/UPE, carries the MS sign in the message
The request of adhering to that MS sends is at first received by E-RAN, and selects a suitable MME/UPE by it for MS, and Attach Request message is routed to this MME/UPE (how selecting MME/UPE to exceed the scope of the invention about E-RAN, this ominous stating).
3, (Home Subscriber Server HSS) carries out authentication (having exceeded the scope of the invention about authentication process, this ominous stating) with MME/UPE to MS to home subscriber servers.
4, after the authentication success, MME/UPE sends login request message to HSS, carries MS sign and service MME/UPE sign in the message at least.
5, the information in the HSS storage login request message is as MS sign and service MME/UPE sign.
6, HSS replys a registration confirmation message to serving MME/UPE, carries the subscription data of user in HSS in message.
7, be accomplished to the registration of HSS after, MME/UPE is that MS distributes temporary mark and IP address (the IP address also can be distributed by Inter AS Anchor), creates communication context information, sets up a default IP carry between MME/UPE and Inter AS Anchor, sets up default IP carry needed RAB (Radio Access Bearer between Evolved-RAN and MME/UPE for MS, RAB), between Evolved-RAN and MS, set up default IP carry needed radio bearer (Radio Bearer, RB).MS can use this default IP to be connected transmission IP grouped data with IASA, and these IP grouped datas may be the grouping busihess datas of application layer, also may be the signaling datas of application layer, for example the SIP signaling of IMS.
8, MME/UPE replys one to MS and adheres to and accept message, carries temporary mark and the IP address of MS in the message at least.
9, parameters such as the temporary mark accepting to carry in the message, IP address are adhered in MS storage.Carry new temporary mark or IP address in the acknowledge message if adhere to, MS replys one to MME/UPE and adheres to acknowledge message after storage, indicates new temporary mark or IP address to be used.So far, MS successfully has been registered to evolvement network, has obtained temporary mark and IP address.
10, after network attachment, if MS have IP Multimedia System (IP Multimedia System, IMS) ability and user need use the IMS business, MS will carry out IMS registration.In the IMS registration process, the default IP that all IMS signaling messages are set up by step 6 connects and transmits.(having exceeded the scope of the invention about the IMS registration process) this ominous stating
11, MS carries out after network attachment and the IMS registration, if free of data transmission default IP connections in, default IP is connected the interior resource of E-RAN and is connected with data and is released, but the default IP between MME/UPE and the IASA carries and is retained.After the release, the communication context information of MS in E-RAN is deleted, all resources (comprising radio channel resource and transmission bearer resource) are released, and MS is in the LTE-Idle idle condition, but the IP address of MS remains unchanged.
In the evolvement network, MS has two states: Idle state LTE-Idle and activated state LTE-Active.MS finishes network registry afterwards if there is not transfer of data, then is discharged into the LTE-Idle attitude by the LTE-Active attitude.Under the LTE-Idle attitude, only MME/UPE has the contextual information of MS, and MME/UPE keeps IP address allocated and default IP carrying, does not have data link between MME/UPE and the UE.If when needing to transmit data or carrying out other signaling activities (for example position renewal activity) between MS and the network, MS is moved to the LTE-Active attitude again.Under the LTE-Active attitude, E-RAN has the contextual information of MS, and MS is assigned radio channel resource, transmitting grouped data and signaling message at any time between MS and the network.
In the evolvement network, network coverage area is divided into different tracking area TA (Tracking Area), each tracking area has a unique tracking area identification TAI (Tracking Area Identity).When MS when a TA moves to another TA, MS carries out tracing section updating TAU (TrackingArea Update), purpose is to upgrade the TAI of current MS place tracking area in MME/UPE.In addition, MS also can periodically carry out tracing section updating, and specified by network the cycle time of renewal, usually the cycle be 40 minutes to several hrs.
If MME/UPE lost efficacy (for example: equipment fault, device damage, systemic breakdown or power down), not only all ongoing communication services are interrupted in the MME/UPE, and because MS does not have available serving MME/UPE, the called service of MS can't be set up, and all MS must could set up descending called service after finishing once new TAU.If MS does not move to new tracking area, after the cycle timer of so necessary control cycle tracing section updating by the time is overtime, MS just can carry out TAU, during this period, if MS does not initiate service call, and network is when having downlink data to send to MS, and network can't be set up professional the connection with MS, and descending called service can't be set up.
Referring to Fig. 5, for the downlink business when MME/UPE lost efficacy in the prior art is set up the process schematic diagram.MME/UPE
1And MME/UPE
2Belong to same MME/UPE pond (other MME/UPE in the MME/UPE pond do not mark in the drawings), MME/UPE
1In the MS that is in two states is respectively arranged: be in the MS of LTE-Active attitude, the ongoing communication business; Be in the MS of LTE-Idle attitude, attached to MME/UPE
1In, MME/UPE
1For these MS are assigned the IP address, and keep MME/UPE
1Default IP carrying to IASA.Work as MME/UPE
1During inefficacy, the process that the MS downlink business rebulids comprises:
1, MME/UPE
1Lost efficacy, the ongoing communication service of the MS of LTE-Active attitude is interrupted, all communication context information dropouts; The default IP carrying of LTE-Idle attitude MS is discharged unusually, and all communication contexts are also lost.
2, before MS does not initiate TAU, if MS does not initiate new service call (being the business of MS as caller) yet, this moment, extenal grouped network had grouped data will send to MS, and grouped data is routed to IASA from outer data network PDN.Because MME/UPE
1Lost efficacy MME/UPE
1All data link to IASA do not exist, and IASA can't forwarding packet data, and grouped data is dropped, and downlink business can not be set up.
3, because MME/UPE
1Lost efficacy, all MS will be discharged into the LTE-Idle attitude unusually.MS will start the timer of a control cycle TAU when the LTE-Idle attitude.Cycle timer is overtime, and perhaps LTE-Idle attitude MS moves to new TA, and MS will initiate the TAU flow process.
4～12, LTE-Idle attitude MS carries out TAU and carries out the IMS registration, and flow process and the network attachment flow process shown in the step 2 among Fig. 4～10 of TAU are similar.
Because MME/UPE
1Lost efficacy, E-RAN will be MS selection serving MME/UPE again, and the TA update inquiry information is routed to new MME/UPE.At this, MME/UPE
2Serving MME/UPE that selected conduct is new, so the TA update inquiry information is routed to MME/UPE
2, by it to carrying out location registration process.After finishing registration, MME/UPE
2For MS distribute temporary mark and IP address, for MS establishment communication context information, at MME/UPE
2And set up a default IP between the IASA and connect.
13, MS successfully re-registers after evolvement network acquisition temporary mark and the IP address, and the downlink grouped data that sends from PDN will be sent to MME/UPE by default IP carrying by IASA
2This moment MME/UPE
2Be serving MME/UPE of MS, so it record positional information (being the TA at the current place of MS) and the state information of MS.Because MS is in the LTE-Idle attitude, so MME/UPE
2With paging MS, MS response paging also will be activated to the LTE-Active attitude, MS and MME/UPE
2Between data link be established MME/UPE
2Just downlink grouped data can be sent to MS through E-RAN.
The shortcoming of prior art is: after the MME/UPE equipment failure, can't set up downlink business attached to the most of MS in this MME/UPE (cycle of tracing section updating is long) in a very long time, have a strong impact on user's proper communication activity.
In the UMTS network, referring to Fig. 1, the function of SGSN is identical with the MME/UPE of evolvement network with the role, and the function of GGSN is identical with the Inter AS Anchor of evolvement network with the role, and HLR and HSS are the memories of storing user subscription information data.If SGSN lost efficacy (for example: equipment fault, device damage, systemic breakdown or power down), not only all ongoing communication services are interrupted in the SGSN, and because UE does not have available service SGSN, the called service of UE can't be set up, and all UE must could set up descending called service after finishing once new Routing Area Update.If UE does not move to new route district, after the cycle timer of so necessary control cycle Routing Area Update by the time is overtime, UE just can carry out Routing Area Update (RoutingArea Update, RAU), during this period, if UE does not initiate service call, and network is when having downlink data to send to UE, network can't be set up professional the connection with UE, and descending called service can't be set up.
Therefore, in the UMTS network, the same existence because of SGSN loses efficacy causes the user can not set up the problem of descending called service in for a long time.
Summary of the invention
The invention provides a kind of method of re-attaching network of mobile terminal, in order to solve in the prior art after the equipment failure of service core net, network can't be set up the problem of downlink business for affected user in a period of time.
The inventive method comprises:
When user information store is known the service core net equipment failure that described portable terminal adheres to, by starting the described portable terminal of described spare core net equipment paging for the spare core net equipment of described portable terminal appointment sends Indication message in advance, indicate described portable terminal to re-execute network attachment to service core net equipment.
According to said method of the present invention, when described portable terminal was initiated network attachment or executing location renewal to described service core net equipment, described service core net equipment was specified described spare core net equipment for this portable terminal.
Described service core net equipment is after portable terminal is specified described spare core net equipment, initiate register requirement, the IP address of carrying Location Area Identification, mobile terminal identification and the portable terminal at described service core net equipment mark, described spare core net equipment mark, portable terminal place to user information store;
Described user information store is stored above-mentioned information.
It is the spare core net equipment of described portable terminal that described service core net equipment is specified the equipment in the same equipment of the core network pond.
According to said method of the present invention, the configuration parameter of its spare core net equipment is set in described service core net equipment in advance, described service core net equipment is that portable terminal attached to it is specified spare core net equipment according to this configuration parameter.
Described service core net equipment is specified identical spare core net equipment for all portable terminals, or
Described service core net equipment is that different mobile terminal is specified different spare core net equipment.
Described service core net equipment is according to the mobile terminal identification segmentation, for the portable terminal of different sections is specified different spare core net equipment; Or/and
Described service core net equipment is according to the capacity situation of equipment of the core network, for portable terminal is specified spare core net equipment.
The information that described user information store provides by Operation ﹠ Maintenance System is known the equipment failure of described service core net; Or
Know the equipment failure of described service core net by the information that gateway device provides.
Described gateway device is known the equipment failure of described service core net, comprising:
Described gateway device is known the equipment failure of described service core net by the bearing link of detection with described service core net equipment room; Or
The information that described gateway device provides by Operation ﹠ Maintenance System is known the equipment failure of described service core net.
When described gateway device detects bearing link with described service core net equipment room and breaks down, know this service core net equipment failure; Or
Described gateway device is known the equipment failure of described service core net from underlying device to the information that it provides when the bearing link of detection and described service core net equipment room.
Described gateway device sends a notification message to described user information store after knowing the equipment failure of described service core net, carry be attached to described service core net equipment mobile terminal identification or/and the IP address of this portable terminal;
The inquiry of described user information store with this mobile terminal identification or/and the corresponding spare core net device identification in IP address and the Location Area Identification at this portable terminal place.
Described Operation ﹠ Maintenance System provides the service core net device identification of inefficacy to described user information store;
Described user information store inquiry is attached to the mobile terminal identification of described service core net equipment, the Location Area Identification at this portable terminal place, the IP address and the device identification of spare core net of this portable terminal.
Described user information store carries the mobile terminal identification and the Location Area Identification that inquire to the Indication message of the spare core net equipment transmission of described spare core net device identification correspondence, and the indication information of initiating network attachment;
Described spare core net equipment sends beep-page message to the wireless access network request in the assigned address district, indicate described portable terminal to initiate network attachment.
According to said method of the present invention, when described portable terminal was initiated the network attachment request by wireless access network, described wireless access network selected other equipments of the core network in described spare core net equipment or the same equipment of the core network pond as the new service core net equipment of this portable terminal for this portable terminal.
When the described wireless access network of described spare core net device request sent beep-page message to portable terminal, described wireless access network was stored mobile terminal identification and the device identification of spare core net that paging request message is carried temporarily;
Described wireless access network is according to described mobile terminal identification and the device identification of described spare core net, and the network attachment request message of this portable terminal is routed to described spare core net equipment, carries out network attachment by it.
According to said method of the present invention, when core net is evolution block core net, described service core net equipment is Mobility Management Entity/user entity MME/UPE, described spare core net equipment is Mobility Management Entity/user entity MME/UPE, gateway device is anchor point IASA between connecting system, and described user information store is home subscriber servers HSS.
When core net is the core net of 3G network, described service core net equipment is service universal grouping wireless business supporting node SGSN, described spare core net equipment is service universal grouping wireless business supporting node SGSN, gateway device is ggsn GGSN, and described user information store is home location register HLR.
Beneficial effect of the present invention is as follows:
(1) the present invention is by specifying spare core net equipment for portable terminal in service core net equipment, in case service core net equipment failure, spare core net equipment in time notifies portable terminal to re-execute network attachment, make because the network that causes of service core net equipment failure can't greatly be shortened for the time that the user sets up downlink business, guarantee normally carrying out of telex network activity to greatest extent.
When (2) service core net equipment is portable terminal appointment stand-by equipment, can be according to the capacity situation of each equipment of the core network in mobile terminal identification segmentation or the equipment of the core network pond, for different mobile terminal is specified different spare core net equipment, the balanced effectively load of equipment of the core network has avoided being caused by the network attachment request of a large amount of portable terminals of spare core net device processes overload.
Description of drawings
Fig. 1 is a UMTS schematic network structure of the prior art;
Fig. 2 is the chief component schematic diagram of evolvement network in the prior art;
Fig. 3 is the MME/UPE pond networking structure of evolvement network in the prior art;
Fig. 4 is the network attachment flow chart of evolvement network in the prior art;
Fig. 5 sets up the process schematic diagram for the downlink business when MME/UPE lost efficacy in the prior art;
Fig. 6 is the flow chart of MME/UPE of the present invention to the HSS registration;
Fig. 7 is attached to the flow chart of standby MME/UPE again for MS of the present invention.
Embodiment
Thinking of the present invention is: serving MME/and when UPE request HSS registers, be that MS specifies a standby MME/UPE; After this serving MME/UPE lost efficacy, HSS obtained the notice that MME/UPE lost efficacy, and asks standby MME/UPE paging MS and instruct MS to re-execute network attachment.After MS carried out network attachment again, all communication activity of user just can normally carry out.
Carry out network attachment at portable terminal, when perhaps changing initiating updating of tracking area because of tracking area, the serving MME/UPE of this portable terminal specifies standby MME/UPE for this portable terminal.The flow process of carrying out network attachment first with portable terminal is an example below, and describing serving MME/UPE is the process that portable terminal is specified standby MME/UPE.Because in the network attachment flow process, the follow-up flow process that MME/UPE finishes after the HSS registration is same as the prior art, now only MS is initiated to adhere to request, is described to the process of finishing the HSS registration.
Referring to Fig. 6, MME/UPE of the present invention is to the flow chart of HSS registration.Wherein, MME/UPE is incorporated in a physical equipment, and IASA is positioned at another physical equipment, and concrete steps comprise:
1, MS start and selection evolvement network.
2, MS sends Attach Request message to E-RAN, carries the MS sign.E-RAN is that MS selects MME/UPE
1As serving MME/UPE, and will adhere to and ask to send to MME/UPE
1
3, MME/UPE
1For this portable terminal is specified MME/UPE
2(annotate: do not mark MME/UPE among Fig. 6 as the standby MME/UPE of this portable terminal
2).
The MS that serving MME/UPE adheres to request for each initiation specifies a standby MME/UPE, and standby MME/UPE and serving MME/UPE are positioned at same MME/UPE pond.In the MME/UE pond, all dispose standby MME/UPE data among each MME/UPE.These data can be by Operation ﹠ Maintenance System (Operation﹠amp; Maintenance, O﹠amp; M) static data of platform configuration is specified.Specify standby MME/UPE that several method is arranged:
Method one: for all MS that are attached to same serving MME/UPE specify an identical standby MME/UPE.For example, 3 MME/UPE being arranged in the MME/UPE pond, is respectively MME/UPE
1, MME/UPE
2And MME/UPE
3At MME/UPE
1In, for all MS attached to it specify MME/UPE
2Be standby MME/UPE; At MME/UPE
2In, for all MS attached to it specify MME/UPE
3Be standby MME/UPE; At MME/UPE
3In, for all MS attached to it specify MME/UPE
1Be standby MME/UPE.
Adopt the method for this appointment stand-by equipment, in case certain MME/UPE lost efficacy, all MS in this MME/UPE will be attached among the same standby MME/UPE again, and this will sharply increase the load of standby MME/UPE.
Method two: (sign of MS can be permanent sign according to the sign segmentation of MS, as international mobile subscriber identification code IMSI, or temporary mark, as P-TMSI), for same section MS specifies identical standby MME/UPE, be the different standby MME/UPE of MS appointment of different sections.For example, 4 MME/UPE being arranged in the MME/UPE pond, is respectively MME/UPE
1, MME/UPE
2, MME/UPE
3And MME/UPE
4
At MME/UPE
1In, carry out following configuration:
-Ruo IMSI mode 3=0, then standby MME/UPE is MME/UPE
2
-Ruo IMSI mode 3=1, then standby MME/UPE is MME/UPE
3
-Ruo IMSI mode 3=2, then standby ME/UPE is MME/UPE
4
In MME/UPE2, carry out following configuration:
-Ruo IMSI mode 3=0, then standby MME/UPE is MME/UPE
3
-Ruo IMSI mode 3=1, then standby MME/UPE is MME/UPE
4
-Ruo IMSI mode 3=2, then standby MME/UPE is MME/UPE
1
Analogize in proper order, at MME/UPE
2And MME/UPE
3In also according to the sign segmentation of MS, dispose standby MME/UPE.
Adopt this method, when certain MME/UPE lost efficacy, all MS attached to it will be shared by several standby ME/UPE.By adjusting configuration data, can also realize certain load balancing, for example, MME/UPE
3Capacity very big, and MME/UPE
4Capacity very little, can not be MME/UPE then
4Configuration data, and give MME/UPE
3The configuration more data.
Adopt above-mentioned second kind of method of specifying standby MME/UPE in this step, by MME/UPE
1For portable terminal is specified MME/UPE
2As stand-by equipment.
4, MME/UPE
1With HSS this portable terminal is carried out authentication (not identifying authentication process among the figure).After the authentication success, MME/UPE
1Send a login request message to HSS, carry at least in the login request message:
-MS sign, the MS sign can be the temporary mark of MS, or permanent sign, perhaps existing temporary mark also has permanent sign;
-serving MME/UPE sign, i.e. MME/UPE
1Sign;
-standby MME/UPE sign, i.e. MME/UPE
2Sign;
-tracking area identification TAI, the i.e. sign of tracking area under the MS current location;
-IP address, promptly network is the MS IP address allocated
5, after HSS receives register requirement, the information of carrying in the storage request message.
6, HSS is to MME/UPE
1Reply registration confirmation message, show that HSS has upgraded the information such as position of MS.
After HSS finishes registration, MME/UPE
1For MS distribute temporary mark and IP address, at MME/UPE
1And set up default IP carrying between the IASA, be MS distributing radio resource and the same prior art of process of setting up data link in E-RAN.
After MS is attached to serving MME/UPE, be in the MS under the Idle state LET-Idle, its resource (radio channel resource and transmission bearer resource) that default IP connects and E-RAN is interior is released, and the communication context information of MS in E-RAN is deleted; Be in the MS under the activated state LET-Active, can utilize the resource of E-RAN configuration to be connected transmitting grouped data and signaling message with default IP, the business of using evolvement network to provide.
When serving MME/UPE lost efficacy owing to reasons such as equipment fault, device damage, systemic breakdown or power down, need in time MS attached to it to be moved to other available MME/UPE in standby MME/UPE or the MME/UPE pond.
Referring to Fig. 7, be attached to the flow chart of standby MME/UPE again for MS of the present invention.MME/UPE
1Be the current serving MME/UPE of MS, MME/UPE
2Be MME/UPE
1For adhering to the standby MME/UPE of the MS appointment on it.MME/UPE
1In the MS of two states is arranged: be in the MS of LTE-Active attitude, the ongoing communication business; Be in the MS of LTE-Idle attitude, attached to MME/UPE
1In, MME/UPE
1For these MS are assigned the IP address, and keep MME/UPE
1Default IP carrying to IASA.MME/UPE
1After the inefficacy, MS is attached to MME/UPE again
2Flow process specifically comprise:
1, MME/UPE
1Lost efficacy.
Failure reasons may be equipment fault, device damage, systemic breakdown or power down.MME/UPE
1In, the ongoing communication service of LTE-Active attitude MS is interrupted, all communication context information dropouts; The default IP carrying of LTE-Idle attitude MS is discharged unusually, and all communication contexts are also lost.
2, IASA is known MME/UPE
1Lost efficacy.
IASA can be known MME/UPE by the following method
1Lost efficacy:
Method one: by detecting MME/UPE
1Know MME/UPE to the default IP carrying between the IASA
1Whether lost efficacy.If IP carries fault, discharged unusually as link, perhaps underlying device has detected MME/UPE
1Inefficacy has also sent failure notification message, and then IASA is known MME/UPE
1Lost efficacy.For example, if MME/UPE
1And adopt GPRS Tunnel Protocol between the IASA, GTP tunnel carries as default IP, and then when GTP-U detected tunnel fails, IASA judged MME/UPE
1Lost efficacy.
Method two: pass through MME/UPE
1Operation ﹠ Maintenance System know MME/UPE
1Whether lost efficacy.Work as MME/UPE
1During inefficacy, pass through O﹠amp by Operation ﹠ Maintenance System; M order notice and MME/UPE
1The IASA of connection is arranged, point out MME/UPE
1Lost efficacy.
3, IASA sends a notification message to HSS, points out MME/UPE
1Lost efficacy.
When IASA detects MME/UPE by said method one
1During inefficacy, IASA can by with MME/UPE
1Between default IP carrying know and be attached to MME/UPE
1On MS sign or/and the IP address; IASA sends a notification message to HSS, carries this MS sign or/and the IP address.The MS sign can be the temporary mark of MS, and perhaps permanent sign also can the both comprise.At this moment, IASA carries MS sign in sending to the notification message of HSS or/and the IP address, and MME/UPE
1Sign.
When IASA is known MME/UPE by said method two
1During inefficacy, IASA is from O﹠amp; Get access to MME/UPE in the M order
1Sign.At this moment, IASA carries MME/UPE in sending to the notification message of HSS
1Sign.
4, HSS is to MME/UPE
2Send the reattachment Indication message, request MME/UPE
2Paging MS, instruct MS is carried out network attachment immediately.
HSS is known MME/UPE after receiving the notification message of IASA transmission
1Lost efficacy.HSS at first identifies or/and IP address or MME/UPE according to the MS that notification message carries
1Sign, the register information of inquiry MS, comprising this MS sign and IP address, the standby MME/UPE sign (MME/UPE of this MS
2Sign) and the tracking area identification TAI of the current position of MS.Then, HSS is to MME/UPE
2Send Indication message, request MME/UPE
2Instruct MS is carried out network attachment immediately.At least carry IP address, TAI and the indication reason of MS sign, MS in the Indication message.Cause parameter is pointed out the reason of paging MS, for example " network attachment (Re-attach) again "
HSS also can know that serving MME/UPE lost efficacy by other modes except that knowing that by IASA serving MME/UPE lost efficacy.For example: ME/UPE
1After the inefficacy, Operation ﹠ Maintenance System directly passes through O﹠amp; M order notice HSS points out MME/UPE
1Lost efficacy.
5, MME/UPE
2After receiving Indication message, paging MS, instruct MS is carried out network attachment immediately.
MME/UPE
2After receiving Indication message, whether inquiry has the contextual information corresponding to the MS sign.Since do not find to store communication context corresponding to the MS sign, therefore, MME/UPE
2According to the tracking area identification TAI that carries in the Indication message (TAI has determined the coverage of paging MS), all E-RAN in the TAI coverage send paging request message.Carry MS sign and paging reason in the paging request message, paging cause parameter instruct MS is carried out network attachment immediately.
6, E-RAN broadcast paging messages, instruct MS is carried out network attachment immediately.
E-RAN receives MME/UPE
2Paging request message after, the MS sign of carrying in the interim storing message, and record sends the MME/UPE of paging request
2Sign (be standby MME/UPE sign).E-RAN is broadcast paging messages on paging channel, points out the paging reason in the beep-page message.E-RAN is broadcast paging channel how, and how MS judges whether beep-page message sends to oneself, exceeds the scope of the invention, does not describe in detail here.
7, MS carries out network attachment after receiving beep-page message immediately.
After MS received beep-page message, owing to paging reason instruct MS is carried out network attachment immediately, so MS sent Attach Request message to network, points out the sign of MS in the message.
Because E-RAN has stored MME/UPE in the step 6 temporarily
2Sign and MS sign, therefore, after E-RAN receives Attach Request message, be the request message that this MS sends if judge this request message, then this request message is routed to MME/UPE
2In.
8, MS carries out the network attachment flow process.
After MS finishes network attachment, MME/UPE
2Become serving MME/UPE of MS, simultaneously, MME/UPE
2Once more to the new standby MME/UPE of HSS registration.After network attachment finishes, MME/UPE
2For MS redistributes temporary mark and IP address, and be established to the default IP carrying of IASA again for MS, on the MS/downlink business normally sets up.
In above-mentioned flow process, as if the interim store M ME/UPE of E-RAN in step 6
2Sign and MS sign, then E-RAN receive that MS sends adhere to request after, according to the loading condition of each equipment in the MME/UPE pond or adopt other mechanism (for example, the mode of selecting by permanent order) to be MS selection serving MME/UPE.
More than flow process of the present invention also be applicable to the UMTS network.In the UMTS network, service SGSN is that UE specifies standby SGSN, and when SGSN request HLR registration standby SGSN is registered to HLR.When SGSN lost efficacy, GGSN can be known the SGSN inefficacy and report HLR, HLR to know that SGSN lost efficacy by link detecting.HLR can also pass through O﹠amp; The M order knows that SGSN lost efficacy.In case HLR is known SGSN and lost efficacy that HLR indicates the UE (these UE are attached to the UE among the inefficacy SGSN) of standby SGSN paging appointment.After UE received paging, the execution network attachment also was attached among the standby SGSN.
In the UMTS network, the flow process that UE is attached to the detailed process of standby SGSN and Fig. 7 again is similar, is not described in detail here.
Describe as can be known by above flow process, the present invention passes through at MME/UPE
1In be that portable terminal specifies stand-by equipment MME/UPE
2, when HSS is known MME/UPE
1During inefficacy, in time notify MME/UPE
2Indicating mobile terminal is carried out network attachment immediately, makes because MME/UPE
1The time that user's downlink business that inefficacy causes can not be set up is greatly shortened, and guarantees that to greatest extent the telex network activity normally carries out.In addition, MME/UPE
1When specifying stand-by equipment for portable terminal, can be according to the capacity situation of each equipment in mobile terminal identification segmentation or the MME/UPE pond, for different mobile terminal is specified different stand-by equipments, balanced effectively MME/UPE load has been avoided being handled the network attachment request of a large amount of portable terminals simultaneously and being caused overload by a stand-by equipment.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (17)
1. the method for a re-attaching network of mobile terminal, comprise: when user information store is known the service core net equipment failure that described portable terminal adheres to, by to service core net equipment being the spare core net equipment transmission Indication message of described portable terminal appointment in advance, start the described portable terminal of described spare core net equipment paging, indicate described portable terminal to re-execute network attachment.
2. the method for claim 1 is characterized in that, when described portable terminal was initiated network attachment or executing location renewal to described service core net equipment, described service core net equipment was specified described spare core net equipment for this portable terminal.
3. method as claimed in claim 2, it is characterized in that, described service core net equipment is after portable terminal is specified described spare core net equipment, initiate register requirement, the IP address of carrying Location Area Identification, mobile terminal identification and the portable terminal at described service core net equipment mark, described spare core net equipment mark, portable terminal place to user information store;
Described user information store is stored above-mentioned information.
4. method as claimed in claim 2 is characterized in that, it is the spare core net equipment of described portable terminal that described service core net equipment is specified the equipment in the same equipment of the core network pond.
5. the method for claim 1, it is characterized in that, the configuration parameter of its spare core net equipment is set in described service core net equipment in advance, and described service core net equipment is that portable terminal attached to it is specified spare core net equipment according to this configuration parameter.
6. method as claimed in claim 5 is characterized in that, described service core net equipment is specified identical spare core net equipment for all portable terminals, or
Described service core net equipment is that different mobile terminal is specified different spare core net equipment.
7. method as claimed in claim 6 is characterized in that, described service core net equipment is according to the mobile terminal identification segmentation, for the portable terminal of different sections is specified different spare core net equipment; Or/and
Described service core net equipment is according to the capacity situation of equipment of the core network, for portable terminal is specified spare core net equipment.
8. the method for claim 1 is characterized in that, the information that described user information store provides by Operation ﹠ Maintenance System is known the equipment failure of described service core net; Or
Know the equipment failure of described service core net by the information that gateway device provides.
9. method as claimed in claim 8 is characterized in that, described gateway device is known the equipment failure of described service core net, comprising:
Described gateway device is known the equipment failure of described service core net by the bearing link of detection with described service core net equipment room; Or
The information that described gateway device provides by Operation ﹠ Maintenance System is known the equipment failure of described service core net.
10. method as claimed in claim 9 is characterized in that, when described gateway device detects bearing link with described service core net equipment room and breaks down, knows this service core net equipment failure; Or
Described gateway device is known the equipment failure of described service core net from underlying device to the information that it provides when the bearing link of detection and described service core net equipment room.
11. method as claimed in claim 8, it is characterized in that, described gateway device sends a notification message to described user information store after knowing the equipment failure of described service core net, carry be attached to described service core net equipment mobile terminal identification or/and the IP address of this portable terminal;
The inquiry of described user information store with this mobile terminal identification or/and the corresponding spare core net device identification in IP address and the Location Area Identification at this portable terminal place.
12. method as claimed in claim 8 is characterized in that, described Operation ﹠ Maintenance System provides the service core net device identification of inefficacy to described user information store;
Described user information store inquiry is attached to the mobile terminal identification of described service core net equipment, the Location Area Identification at this portable terminal place, the IP address and the device identification of spare core net of this portable terminal.
13. as claim 11 or 12 described methods, it is characterized in that, described user information store is to the Indication message of the spare core net equipment transmission of described spare core net device identification correspondence, carry the mobile terminal identification and the Location Area Identification that inquire, and the indication information of initiating network attachment;
Described spare core net equipment sends beep-page message to the wireless access network request in the assigned address district, indicate described portable terminal to initiate network attachment.
14. the method for claim 1, it is characterized in that, when described portable terminal was initiated the network attachment request by wireless access network, described wireless access network selected other equipments of the core network in described spare core net equipment or the same equipment of the core network pond as the new service core net equipment of this portable terminal for this portable terminal.
15. the described method of claim 14, it is characterized in that, when the described wireless access network of described spare core net device request sent beep-page message to portable terminal, described wireless access network was stored mobile terminal identification and the device identification of spare core net that paging request message is carried temporarily;
Described wireless access network is according to described mobile terminal identification and the device identification of described spare core net, and the network attachment request message of this portable terminal is routed to described spare core net equipment, carries out network attachment by it.
16. the method for claim 1, it is characterized in that, when core net is evolution block core net, described service core net equipment is Mobility Management Entity/user entity MME/UPE, described spare core net equipment is Mobility Management Entity/user entity MME/UPE, gateway device is anchor point IASA between connecting system, and described user information store is home subscriber servers HSS.
17. the method for claim 1, it is characterized in that, when core net is the core net of 3G network, described service core net equipment is service universal grouping wireless business supporting node SGSN, described spare core net equipment is service universal grouping wireless business supporting node SGSN, gateway device is ggsn GGSN, and described user information store is home location register HLR.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100729110A CN101052212B (en) | 2006-04-03 | 2006-04-03 | Method for re-attaching network of mobile terminal |
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| CN2006100729110A CN101052212B (en) | 2006-04-03 | 2006-04-03 | Method for re-attaching network of mobile terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480707B (en) * | 2010-11-22 | 2014-12-17 | 中国电信股份有限公司 | Packet domain real-time service on-line maintaining method and terminal |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101534566B (en) * | 2008-03-11 | 2012-07-04 | 华为技术有限公司 | Method for paging users, wireless access equipment and terminal |
| CN101540719B (en) * | 2008-03-19 | 2012-09-19 | 电信科学技术研究院 | Method and equipment for re-locating serving gateway |
| CN101448243B (en) * | 2008-04-11 | 2011-09-21 | 中兴通讯股份有限公司 | Method for realizing user registration |
| CN101600261B (en) * | 2008-06-06 | 2012-10-17 | 华为技术有限公司 | Method, system, gateway and base station for reattaching mobile table |
| CN101754357B (en) * | 2008-12-05 | 2012-05-23 | 中兴通讯股份有限公司 | Method for solving calling failure caused by abnormality of core network |
| CN101998590B (en) | 2009-08-25 | 2015-05-20 | 中兴通讯股份有限公司 | User reachable realization method and multimode terminal |
| CN102045803B (en) * | 2009-10-17 | 2013-06-12 | 中兴通讯股份有限公司 | System and method for implementing circuit switched fallback of evolved packet system network |
| CN102083112A (en) * | 2009-11-27 | 2011-06-01 | 华为技术有限公司 | Method, network equipment and user equipment for guaranteeing service connection |
| CN102572903B (en) * | 2010-12-31 | 2015-08-12 | 中兴通讯股份有限公司 | The selection of access support node and disaster recovery method, system and access control equipment |
| CN102905369B (en) * | 2011-07-26 | 2018-04-20 | 中兴通讯股份有限公司 | User equipment calling method and system when mobile management unit fails or restarts |
| CN103036928A (en) * | 2011-10-10 | 2013-04-10 | 中兴通讯股份有限公司 | Network overload processing method and network overload processing device |
| CN105722147B (en) * | 2014-12-04 | 2019-08-13 | 中国移动通信集团公司 | Core network load equalization methods, base station, base station pond and core net |
| CN112566201A (en) * | 2015-10-09 | 2021-03-26 | 苹果公司 | Network initiated packet data network connection |
| CN107295570B (en) * | 2016-04-12 | 2019-11-12 | 大唐移动通信设备有限公司 | The transmission method and equipment of the core network of downlink data |
| CN107241753A (en) * | 2017-06-01 | 2017-10-10 | 国网浙江省电力公司嘉兴供电公司 | Wireless network method for optimizing stability and system |
| CN109219077B (en) * | 2017-07-03 | 2020-12-04 | 大唐移动通信设备有限公司 | Resource selection method and device |
| CN110944029B (en) * | 2018-09-25 | 2021-12-17 | 华为技术有限公司 | Data backup method, device and communication system |
| CN112806089A (en) * | 2018-10-18 | 2021-05-14 | 华为技术有限公司 | Terminal equipment access method and device |
| CN111224800B (en) * | 2018-11-23 | 2021-06-18 | 大唐移动通信设备有限公司 | Data processing method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487754A (en) * | 2002-08-21 | 2004-04-07 | Lg������ʽ���� | Shift processing method for mobile communication system |
-
2006
- 2006-04-03 CN CN2006100729110A patent/CN101052212B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487754A (en) * | 2002-08-21 | 2004-04-07 | Lg������ʽ���� | Shift processing method for mobile communication system |
Non-Patent Citations (2)
| Title |
|---|
| 孔峰 周旗.3G移动核心网容灾技术分析.移动通信.2006,86－88. * |
| 黄嘉 夏勇 谢武胜.WCDMA R4 核心网网络容灾方案的探讨.电信工程技术与标准化.2006,11-15. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480707B (en) * | 2010-11-22 | 2014-12-17 | 中国电信股份有限公司 | Packet domain real-time service on-line maintaining method and terminal |
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|---|---|
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