CN102045804B - Method and system for realizing switching prospective registration - Google Patents

Method and system for realizing switching prospective registration Download PDF

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Publication number
CN102045804B
CN102045804B CN200910205517.3A CN200910205517A CN102045804B CN 102045804 B CN102045804 B CN 102045804B CN 200910205517 A CN200910205517 A CN 200910205517A CN 102045804 B CN102045804 B CN 102045804B
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pdn
registration
apn
connects
subscriber equipment
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CN102045804A (en
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毕以峰
周晓云
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method for realizing switching prospective registration, comprising: when user equipment carries out switching registration before switching to a target system from a source system, if the target system does not support the situation that a plurality of packet data network (PDN) connections exist under the same access point name (APN), establishing prospective registration information for the PDN connection built newly in all the PDN connections under the APN. The invention also provides a system for realizing switching prospective registration. The method and the system are characterized in that the prospective registration information can be established for user equipment for the PDN connection built newly in the plurality of PDN connections under the same APN, thus guaranteeing to switch the PDN connection built newly to a target system.

Description

A kind of method and system that realize switching pre-registration
Technical field
The present invention relates to the communications field, relate in particular to the method and system that realize switching pre-registration under a kind of handoff scenario.
Background technology
One, the framework that interconnects
Third generation partner program (3rd Generation Partnership Project, abbreviating 3GPP as) system architecture of evolution is the grouping system of evolution (Evolved Packet System, abbreviate EPS as) by E-UTRAN (Evolved Universal Terrestrial Radio Access Network, abbreviate the universal land radio access web of evolution as), mobile management unit (Mobility Management Entity, abbreviate MME as), gateway (Serving Gateway, abbreviate S-GW as), grouped data network gateway (Packet Data Network Gateway, abbreviate P-GW as), home subscriber server (HomeSubscriber Server, abbreviate HSS as), 3GPP authentication and authorization charging server (abbreviating aaa server as), and other support nodes are formed, wherein, E-UTRAN is the 3GPP Access Network of EPS system, inside comprises the base station (Evolved NodeB abbreviates eNB as) of many evolution; The packet-based core networks of evolution (Evolved Packet Core Network abbreviates EPC as) are the core net of EPS system, and EPC comprises MME, network elements such as S-GW and P-GW; MME is responsible for the chain of command related work; S-GW is the accessing gateway equipment that links to each other with E-UTRAN; P-GW is the borde gateway of EPS and packet data network (Packet Data Network abbreviates PDN as), be responsible for to PDN access, between EPS system and PDN, transmit data, see the dotted line upper area of Fig. 1.
EPS network support and eHRPD (evolved High Rate Packet Data, the High Rate Packet Data of evolution) interconnect (the Connectivity and Interworking) of network, be subscriber equipment (UserEquipment, abbreviate UE as) can insert the P-GW of EPS by eHRPD, and can realize the back and forth switching of UE between two systems, the eHRPD system architecture is seen the dotted line lower area of Fig. 1.
Figure 1 shows that the configuration diagram that interconnects of E-UTRAN and eHRPD system.Wherein, the eHRPD system is by HSGW (HRPD Serving Gateway, the high-rate packet data services gateway), HRPD-eAN (evolved Access Network, the Access Network of evolution), data anchor point P-GW (is the P-GW among the 3GPP EPS, under the scene that interconnects, EPS system and eHRPD system share P-GW) etc. basic network element constitute.HSGW inserts first of eHRPD core net as terminal and jumps, it is the accessing gateway equipment that links to each other with HRPD-eAN, be responsible for user's mobile management, context management, and between HRPD-eAN and P-GW, transmit data, be responsible for pending datas such as paging are carried out buffer memory and forwarding etc.P-GW is the data gateway that terminal is passed through 3GPP Access Network (as E-UTRAN) and non-3 GPP access network (as eHRPD) access PDN, that is: no matter working as terminal UE is to insert or insert by the eHRPD Access Network by the E-UTRAN Access Network, the up-downgoing transfer of data must be passed through data gateway P-GW, communicates by letter with outside PDN again; When terminal was switched between 3GPP access (as E-UTRAN) and non-3GPP access (as eHRPD), P-GW was the anchor point in the handoff procedure as immovable gateway.In order to realize that multimode terminal passes through different connecting system and inserts, and the continuity of business can guarantee that terminal is switched in different access systems the time, increased some interfaces newly: S101 interface, S103 interface and S2a interface.The S2a interface transmits control and bearer service between HSGW and P-GW, adopt the PMIPv6 agreement.Optimization to the eHRPD connecting system is switched from the E-UTRAN connecting system as UE, the mechanism that has data forwarding and buffer memory, namely between MME and HRPD-eAN, transmit information that authentication information and data transmit etc. by the S101 interface, thereby the passage of S103 interface is set up in assistance; Converting downlink data when the S103 interface is switched to the eHRPD system by the E-UTRAN system for terminal, the descending data of forwarding are buffered in HSGW.
In the prior art, the step that UE switches from the E-UTRAN connecting system to the optimization of eHRPD connecting system is divided into two stages:
Phase I, pre-registration
UE detects current E-UTRAN wireless signal and begins to become more weak, the wireless signal of eHRPD is fine, UE is before formally switching to eHRPD, doing pre-registration to the eHRPD system earlier prepares, because UE singly treats terminal (being that UE can not open multiple wireless transmission and reception simultaneously), (analysis of existing procedure is seen below in concrete operations) that the eHRPD signaling of this pre-registration stage is delivered to HRPD-eAN and HSGW through wireless signal and the S101 interface of encapsulation by E-UTRAN.
After finishing the pre-registration preparation, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE needs to keep in the pre-registration of eHRPD.
Second stage is switched
UE detects current E-UTRAN signal can not support current business, so formally switch to the eHRPD system.Because UE has had pre-registration in the eHRPD system, UE switches to the eHRPD system and just becomes quick and made things convenient for like this.
Figure 2 shows that existing UE optimizes handoff procedure from the E-UTRAN connecting system to the eHRPD connecting system, comprising:
201.UE be linked into EPC by E-UTRAN, and be in activation (Active) state;
202.UE by measuring wireless signal, it is more weak to detect current E-UTRAN wireless signal, the wireless signal of eHRPD is fine, determines UE to do pre-registration to the eHRPD system and prepares;
203.UE and HRPD-eAN sets up the eHRPD session;
204.HRPD-eAN and set up data channel between the HSGW.Here be to set up A10 by the A11 signaling to connect;
205.UE insert the authentication and authorization of eHRPD system;
206.UE and consult the PDN link information between the HSGW, the network layer negotiation of PPP session, resource reservation and carrying foundation etc.;
To this step, UE finishes at the pre-registration of eHRPD system.
207. because UE finishes pre-registration prepare after, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, like this, before formal the switching, UE needs to keep in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
208. the signal that detects E-UTRAN as UE is not enough to support current when professional, UE formally switches to eHRPD from E-UTRAN.
This step 208 belongs to second stage of switching, and concrete detailed operation is because of little with relation of the present invention, so be not discussed in detail.
More than in the operation, signaling is set up in eHRPD session between UE and the HRPD-eAN, authentication and authorization signaling between UE and the HSGW, and the maintenance of PDN establishment of connection signaling and pre-registration to refresh all be to transmit by eNB and MME, by the signaling between E-UTRAN wireless signal, eNB and the MME between UE and the eNB, and MME and HRPD-eAN between the S101 signaling bear.
Two, single APN (Access Point name, APN) many PDN interconnection technique
Single many PDN of APN interconnection technique is the new function of the redaction R9 of 3GPP E-UTRAN system, and it is the enhancing on the R8 version of 3GPP E-UTRAN system.3GPP E-UTRAN R8 version support terminal can insert a plurality of PDN by different APN, setting up a plurality of PDN connects, visit different PDN, but can not insert same PDN many times by same APN by support terminal, can not set up a plurality of PDN by same APN and connect.The R9 version of 3GPP E-UTRAN system strengthens this function, namely can be linked into same PDN many times by same APN, set up a plurality of PDN links by same APN, and can not identify a PDN by APN separately connects, connect in order to distinguish a plurality of PDN, identifying a PDN with APN+ default bearing sign (LBI, linked bearerID) connects.
Stipulate in the current standard agreement, if having set up a plurality of PDN at some APN in supporting the E-UTRAN system that the many PDN of single APN connect, UE connects, if this UE switches in non-3GPP, and this non-3GPP is a system that does not support single many PDN of APN interconnection technique, like this, a plurality of PDN under this APN connect can only have a PDN connection to switch in the target eHRPD system, and is up-to-date, namely last that PDN that sets up connects, and remaining PDN connection all can be abandoned.
If having set up a plurality of PDN at some APN in the E-UTRAN system that supports " the many PDN of single APN connect ", UE connects, if this UE switches to the eHRPD system, and this eHRPD system is a system that does not support single many PDN of APN interconnection technique, and how realizing switching is problem to be solved.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method and system of realizing switching pre-registration, realize that E-UTRAN-eHRPD interconnects under the framework, the pre-registration when UE switches to the eHRPD system that does not support single many PDN of APN interconnection technique from the E-UTRAN system that supports the many PDN of single APN and connect.
In order to address the above problem, the invention provides a kind of method that realizes switching pre-registration, comprise: when subscriber equipment switches pre-registration before switching from origin system to goal systems, if goal systems does not support to exist under the same APN (APN) a plurality of packet data network (PDN) to connect, then only for connecting, the PDN of up-to-date foundation in all PDN connections under this APN sets up pre-registration.
Further, said method also can have following characteristics, after described subscriber equipment is set up described pre-registration, maintenance phase in described pre-registration, if setting up PDN new under this APN again from origin system, described subscriber equipment connects, perhaps the described subscriber equipment PDN that deleted up-to-date foundation under this APN from origin system connects, then for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration.
Further, said method also can have following characteristics, and the PDN of up-to-date foundation connected and sets up pre-registration and specifically comprise during described PDN for current existence under this APN connected:
Subscriber equipment connects the pre-registration releasing operation by PDN, consults with goal systems, discharges the pre-registration that former PDN connects; The PDN of subscriber equipment initiation afterwards connects pre-registration and sets up operation, consults with goal systems, sets up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
Further, said method also can have following characteristics, and the PDN of up-to-date foundation connected and sets up pre-registration and specifically comprise during described PDN for current existence under this APN connected:
Subscriber equipment is directly initiated PDN and is connected pre-registration foundation operation, consult with goal systems, by revising the pre-registration that former PDN connects, perhaps use newly-established pre-registration to cover the method for the pre-registration of former PDN connection, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
Further, said method also can have following characteristics, goal systems is after pre-registration was set up in the PDN connection of up-to-date foundation during the PDN of current existence under this APN connected, return response message and give subscriber equipment, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
The present invention also provides a kind of system that realizes switching pre-registration, comprising: subscriber equipment, origin system and goal systems, wherein:
Described subscriber equipment, when being used for before switching from origin system to goal systems, switching pre-registration, if goal systems does not support to exist under the same APN a plurality of PDN to connect, then only for connecting, the PDN of up-to-date foundation in all PDN connections under this APN sets up pre-registration.
Further, said system also can have following characteristics,
Described subscriber equipment, after also being used for setting up described pre-registration, maintenance phase in described pre-registration, if setting up PDN new under this APN again from origin system, described subscriber equipment connects, perhaps the described subscriber equipment PDN that deleted up-to-date foundation under this APN from origin system connects, then for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration.
Further, said system also can have following characteristics,
Described subscriber equipment, also be used for connecting the pre-registration releasing operation by PDN, consult with goal systems, after discharging the pre-registration of former PDN connection, initiate PDN and connect pre-registration foundation operation, consult with goal systems, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
Further, said system also can have following characteristics,
Described subscriber equipment also is used for directly initiation PDN connection pre-registration foundation operation, and the request target system sets up pre-registration for the PDN connection of up-to-date foundation in the PDN connection of current existence under this APN;
Described goal systems, be used for initiating described PDN when connecting pre-registration and setting up operation at described subscriber equipment, by revising the pre-registration that former PDN connects, perhaps use newly-established pre-registration to cover the method for the pre-registration of former PDN connection, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
Further, said system also can have following characteristics,
Described goal systems, also be used to the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect set up pre-registration after, return response message and give subscriber equipment, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
The method of the invention and system can set up pre-registration for the PDN of up-to-date foundation in a plurality of PDN connections of subscriber equipment under same APN connects, thereby guarantee that the PDN connection of switching up-to-date foundation switches to goal systems.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the Organization Chart that the eHRPD-E-UTRAN according to correlation technique interconnects;
Fig. 2 is the flow chart that is switched to eHRPD by E-UTRAN according to the UE of correlation technique;
Fig. 3 is according to the inventive method embodiment one flow chart;
Fig. 4 is according to the inventive method embodiment two and four flow charts;
Fig. 5 is according to the inventive method embodiment three and five flow charts.
Embodiment
Main thought of the present invention is: E-UTRAN-eHRPD interconnects under the framework, one UE sets up a plurality of PDN and connects under certain APN in the E-UTRAN connecting system, when UE when switching from E-UTRAN to eHRPD, if eHRPD is the connecting system of not supporting that the many PDN of single APN connect, then only for UE during all PDN connect under this APN the PDN of up-to-date foundation connect and set up pre-registration.
The method that pre-registration is switched in realization of the present invention comprises:
When UE switches pre-registration before switching to goal systems from origin system, if goal systems does not support to exist under the same APN (APN) a plurality of packet data network (PDN) to connect, only for connecting, the PDN of up-to-date foundation in UE all PDN connections under same APN sets up pre-registration; Wherein, UE exists one or more PDN to connect under same APN, as special case, if only exist a PDN to connect under this APN, then sets up pre-registration for this unique PDN connects.
Further, after setting up described pre-registration, maintenance phase in described pre-registration, if having set up new PDN again from origin system under this APN, UE connects, perhaps, UE from origin system, deleted all PDN under this APN connect in the PDN of up-to-date foundation connect, then described UE from goal systems for the PDN of the current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration.
Do not support in the eHRPD system under the situation of the many PDN connections of single APN, when setting up new pre-registration, need the former pre-registration of deletion, UE PDN connection of up-to-date foundation in the PDN that is the current existence under this APN from goal systems connects is set up pre-registration and can be set up by following dual mode is arbitrary:
UE connects the pre-registration releasing operation by PDN, consult with goal systems, after discharging the former PDN connection pre-registration of (namely existing the PDN of pre-registration to connect), UE initiates PDN and connects pre-registration foundation operation, consult with goal systems, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN in the origin system connects;
Perhaps, UE directly initiates PDN and connects pre-registration foundation operation, consult with goal systems, by revising the pre-registration that former PDN connects or use newly-established pre-registration to cover the method for the pre-registration that former PDN connects, for the PDN of current existence under this APN in the origin system connect in the PDN of up-to-date foundation connect and set up pre-registration.Further, goal systems is after the pre-registration success was set up in the PDN connection of up-to-date foundation during the PDN of the current existence under this APN connected, return response message and give UE, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
Embodiment one
Fig. 3 is embodiment one flow process according to the inventive method, and detailed steps is described as follows:
301.UE be linked into EPC by E-UTRAN, and be in activation (Active) state; Having set up a plurality of PDN at some APN connects.As special case, also may only exist a PDN to connect under this APN.
302.UE by measuring wireless signal, it is more weak to detect current E-UTRAN wireless signal, the wireless signal of eHRPD is fine, determines UE to do pre-registration to the eHRPD system and prepares;
303.UE and HRPD-eAN sets up the eHRPD session.
304.HRPD-eAN and set up data channel between the HSGW.Here be to set up A10 by the A11 signaling to connect;
305.UE insert the authentication and authorization of eHRPD system.
306. during a plurality of PDN under the same APN connected, UE selected the PDN of up-to-date foundation to be connected to it and initiates pre-registration; As special case, if only exist a PDN to connect under this APN, then for connecting, this unique PDN sets up pre-registration.
307.UE and consult the PDN link information between the HSGW, the network layer negotiation of PPP session, resource reservation and carrying foundation;
308. because UE finishes pre-registration prepare after, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, like this, UE needs to keep in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
309. the signal that detects E-UTRAN as UE is not enough to support current when professional, UE formally switches to eHRPD from E-UTRAN.
More than in the operation, signaling is set up in eHRPD session between UE and the HRPD-eAN, authentication and authorization signaling between UE and the HSGW, and the maintenance of PDN establishment of connection signaling and pre-registration to refresh all be to pass through eNB, MME transmits, by the E-UTRAN wireless signal between UE and the eNB, the signaling between eNB and the MME, the S101 signaling bear between MME and the HRPD-eAN.
Embodiment two
Fig. 4 is embodiment two flow processs according to the inventive method, and detailed steps is described as follows:
401.UE be linked into EPC by E-UTRAN, and be in activation (Active) state; Having set up a plurality of PDN at some APN connects.As special case, also may only exist a PDN to connect under this APN.
402.UE by measuring wireless signal, it is more weak to detect current E-UTRAN wireless signal, the wireless signal of eHRPD is fine, determines UE to do pre-registration to the eHRPD system and prepares;
403.UE and HRPD-eAN sets up the eHRPD session.
404.HRPD-eAN and set up data channel between the HSGW.Here be to set up A10 by the A11 signaling to connect;
405.UE insert the authentication and authorization of eHRPD system.
406. during a plurality of PDN under the same APN connected, UE selected the PDN of up-to-date foundation to be connected to it and initiates pre-registration; As special case, if only exist a PDN to connect under this APN, then for connecting, this unique PDN sets up pre-registration.
407.UE and consult the PDN link information between the HSGW, the network layer negotiation of PPP session, resource reservation and carrying foundation;
408. because UE finishes pre-registration prepare after, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, like this, UE needs to keep in the pre-registration of eHRPD;
Maintenance phase in pre-registration, UE may set up new PDN again and connect under the APN that exists PDN to connect, therefore to connect be not that up-to-date PDN has connected to the former PDN that has a pre-registration, the PDN connection of just having set up is only up-to-date PDN and connects, and should connect for the PDN that has just set up set up pre-registration.
409.UE by the operation in similar 407 steps, initiate request, set up pre-registration for this newly-established PDN connects; After HSGW receives request, find to have existed under this APN the pre-registration of a PDN connection, because the eHRPD system does not support " the many PDN of single APN connect ", so HSGW can think that this is a faulty operation, refuse the foundation that this PDN connects pre-registration, carry error reason and be: existed PDN to connect under this APN.
This step is optional, because UE is after the operation through one time 409 step, UE has just known the ability of HSGW, if the situation that " PDN connects pre-registration " replacing takes place in a plurality of PDN connections under the other APN is arranged again, UE has known that this HSGW does not support " the many PDN of single APN connect " technology, and flow process can leap to for the 410th step.
410.UE connect the pre-registration releasing operation by PDN, consult with HSGW, discharge the pre-registration of the PDN connection that has pre-registration.
Wherein, PDN connection pre-registration releasing operation can be realized by PDN connection release and resource deletion action.
411.UE set up pre-registration by the operating procedures in 407 steps roughly the same for the PDN that just set up connects.
Roughly the same Shang Mian description, this stage has just been finished pre-registration, and UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE also needs continuous maintenance in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
412. the signal that detects E-UTRAN as UE is not enough to support current when professional, UE formally switches to eHRPD from E-UTRAN.
More than in the operation, signaling is set up in eHRPD session between UE and the HRPD-eAN, authentication and authorization signaling between UE and the HSGW, and the maintenance of PDN establishment of connection signaling and pre-registration to refresh all be to pass through eNB, MME transmits, by the E-UTRAN wireless signal between UE and the eNB, the signaling between eNB and the MME, the S101 signaling bear between MME and the HRPD-eAN.
Embodiment three
Fig. 5 is embodiment three flow processs according to the inventive method, and detailed steps is described as follows:
501.UE be linked into EPC by E-UTRAN, and be in activation (Active) state; Having set up a plurality of PDN at some APN connects.As special case, also may only exist a PDN to connect under this APN.
502.UE by measuring wireless signal, it is more weak to detect current E-UTRAN wireless signal, the wireless signal of eHRPD is fine, determines UE to do pre-registration to the eHRPD system and prepares;
503.UE and HRPD-eAN sets up the eHRPD session.
504.HRPD-eAN and set up data channel between the HSGW.Here be to set up A10 by the A11 signaling to connect;
505.UE insert the authentication and authorization of eHRPD system.
506. during a plurality of PDN under the same APN connected, UE selected the PDN of up-to-date foundation to be connected to it and initiates pre-registration; As special case, if only exist a PDN to connect under this APN, then for connecting, this unique PDN sets up pre-registration.
507.UE and consult the PDN link information between the HSGW, the network layer negotiation of PPP session, resource reservation and carrying foundation;
508. because UE finishes pre-registration prepare after, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, like this, UE needs to keep in the pre-registration of eHRPD;
Maintenance phase in pre-registration, UE may set up new PDN again and connect under the APN that exists PDN to connect, therefore to connect be not that up-to-date PDN has connected to the former PDN that has a pre-registration, the PDN connection of just having set up is only up-to-date PDN and connects, and should connect for the PDN that has just set up set up pre-registration.
509. because the eHRPD system does not support what the many PDN of single APN connected, UE sets up pre-registration by the operating procedures in 507 steps roughly the same for the PDN that has just set up connects.
510.HSGW after receiving that PDN connects the foundation request of pre-registration, by revising or using newly-established pre-registration to cover the method that former PDN connects the pre-registration of setting up, set up pre-registration for up-to-date PDN connects.
Optionally, after PDN connection pre-registration was set up successfully, HSGW returned response message and gives UE, carried newly-built PDN in the response message and connected the indication that the pre-registration of former PDN connection foundation was revised/be covered as to pre-registration.
More than the execution orders in 509 steps and 510 steps be such: 509 initiate request after, 510 go on foot executable operations; Deng 510 the step execute operation after, by 509 the step the answer signalings respond to UE.
Roughly the same Shang Mian description, this stage has just been finished pre-registration, and UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE also needs continuous maintenance in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
511. the signal that detects E-UTRAN as UE is not enough to support current when professional, UE formally switches to eHRPD from E-UTRAN.
More than in the operation, signaling is set up in eHRPD session between UE and the HRPD-eAN, authentication and authorization signaling between UE and the HSGW, and the maintenance of PDN establishment of connection signaling and pre-registration to refresh all be to pass through eNB, MME transmits, by the E-UTRAN wireless signal between UE and the eNB, the signaling between eNB and the MME, the S101 signaling bear between MME and the HRPD-eAN.
Embodiment four
Present embodiment and embodiment two are closely similar, difference is among the embodiment two, it is the maintenance phase in pre-registration, PDN connection that UE is newly-built again, present embodiment is the maintenance phase in pre-registration, and the PDN of the up-to-date foundation during UE has deleted certain APN correspondence from the EPS system a plurality of PDN connect connects.Under this scene, the PDN of up-to-date foundation connected and sets up pre-registration during the PDN that UE also is required to be current existence under this APN connected.Its flow chart can be referring to Fig. 4, and difference gets across in the step explanation.
601-607,401-407 is consistent with step;
608, step 408 in the corresponding diagram, but difference is arranged, should change at this: UE is under the APN of a plurality of PDN connections of correspondence, and the PDN that will set up pre-registration connects from the EPS system-kill;
Because after UE finished the pre-registration preparation, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE needs to keep in the pre-registration of eHRPD;
Maintenance phase in pre-registration, UE may be under the APN that a plurality of PDN of correspondence connect, the PDN that sets up pre-registration is connected from the EPS system-kill, and the PDN of up-to-date foundation connected during the PDN that therefore should choose current existence under the APN connected, for it sets up pre-registration.
Do not carry out 609. skip among the figure 409, only carry out with the same operation of step 410 among the figure;
610.UE be that the PDN of up-to-date foundation connected and sets up pre-registration during the PDN of current existence connected by the operating procedures in 607 steps roughly the same.
Roughly the same Shang Mian description, this stage has just been finished pre-registration, and UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE also needs continuous maintenance in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
611. with step 412.
Embodiment five
Present embodiment and embodiment three are closely similar, difference is among the embodiment three, it is the maintenance phase in pre-registration, PDN connection that UE is newly-built again, present embodiment is the maintenance phase in pre-registration, and the PDN of the up-to-date foundation during UE has deleted certain APN correspondence from the EPS system a plurality of PDN connect connects.Under this scene, the PDN of the up-to-date foundation during the PDN that UE is required to be current existence under this APN connects connects and sets up pre-registration.Its flow chart can be referring to Fig. 5, and difference gets across in the step explanation.
701-707 is with step 501-507;
708, step 508 in the corresponding diagram, but difference is arranged, should change at this: UE is under the APN of a plurality of PDN connections of correspondence, and the PDN that will set up pre-registration connects from the EPS system-kill;
Because after UE finished the pre-registration preparation, UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE needs to keep in the pre-registration of eHRPD;
Maintenance phase in pre-registration, UE may be under the APN that a plurality of PDN of correspondence connect, the PDN that sets up pre-registration is connected from the EPS system-kill, therefore should choose the PDN that the PDN of current existence under the APN connects up-to-date foundation and connect, for it sets up pre-registration.
709. because the eHRPD system does not support what the many PDN of single APN connected, UE is that the PDN of up-to-date foundation connected and sets up pre-registration during the PDN of current existence connected by the operating procedure of step 707 roughly the same.
710.HSGW after receiving that PDN connects the foundation request of pre-registration, by revising or using newly-established pre-registration to cover the method that former PDN connects pre-registration, set up pre-registration for current up-to-date PDN connects.
Optionally, after PDN connected log-on message and sets up successfully, HSGW carried indication responding to give in the message of UE, this sign newly-built PDN connection pre-registration override the pre-registration of original PDN connection.
More than the execution orders in 709 steps and 710 steps be such: 709 initiate request after, 710 go on foot executable operations; Deng 710 the step execute operation after, by 709 the step the answer signalings respond to UE.
Roughly the same Shang Mian description, this stage has just been finished pre-registration, and UE may not switch to the eHRPD system immediately, as long as the wireless signal of E-UTRAN can also prop up the current business of being strong enough to support, UE just can not switch, and like this, UE also needs continuous maintenance in the pre-registration of eHRPD;
UE from the time interval that pre-registration is accomplished between the formal switching be uncertain, so pre-registration to refresh and keep the duration also be indefinite.
Above step belongs to first stage of switching: pre-registration stage.
711. with step 511.
In sum, E-UTRAN-eHRPD interconnects under the framework, if in the E-UTRAN connecting system, exist a plurality of PDN to connect under the single APN, when UE when switching from E-UTRAN to eHRPD, if eHRPD is the connecting system of not supporting that the many PDN of single APN connect, guaranteed only to set up pre-registration for the PDN connection of the up-to-date foundation under this APN, even having new PDN to connect again sets up, can guarantee that also pre-registration realize to upgrade, guarantee that all the time pre-registration is that the PDN of up-to-date foundation connects.
In addition, the invention is not restricted to switch from the E-UTRAN system to the eHRPD system, also be suitable for from other connecting systems of supporting the many PDN connections of single APN to the switching pre-registration between other connecting systems of not supporting the many PDN connections of single APN.
The present invention also provides a kind of system that realizes switching pre-registration, comprising: subscriber equipment, origin system and goal systems, wherein:
Described subscriber equipment, when being used for before switching from origin system to goal systems, switching pre-registration, if goal systems does not support to exist under the same APN a plurality of PDN to connect, then only for connecting, the PDN of up-to-date foundation in all PDN connections under this APN sets up pre-registration.
Described subscriber equipment, after also being used for setting up described pre-registration, maintenance phase in described pre-registration, if setting up PDN new under this APN again from origin system, described subscriber equipment connects, perhaps the described subscriber equipment PDN that deleted up-to-date foundation under this APN from origin system connects, then for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration.
Wherein, described subscriber equipment, also be used for connecting the pre-registration releasing operation by PDN, consult with goal systems, after discharging the pre-registration of former PDN connection, initiation PDN connects pre-registration and sets up operation, consults with goal systems, sets up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
Wherein, described subscriber equipment also is used for directly initiation PDN connection pre-registration foundation operation, and the request target system sets up pre-registration for the PDN connection of up-to-date foundation in the PDN connection of current existence under this APN;
Described goal systems, be used for initiating described PDN when connecting pre-registration and setting up operation at described subscriber equipment, by revising the pre-registration that former PDN connects, perhaps use newly-established pre-registration to cover the method for the pre-registration of former PDN connection, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.Also be used to the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect set up pre-registration after, return response message and give subscriber equipment, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. method that realizes switching pre-registration, it is characterized in that, comprise: when subscriber equipment switches pre-registration before switching from origin system to goal systems, if goal systems does not support to exist under the same APN APN a plurality of packet data network (PDN) to connect, then only for connecting, the PDN of up-to-date foundation in all PDN connections under this APN sets up pre-registration; After described subscriber equipment is set up described pre-registration, maintenance phase in described pre-registration, if setting up PDN new under this APN again from origin system, described subscriber equipment connects, perhaps the described subscriber equipment PDN that deleted up-to-date foundation under this APN from origin system connects, then for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration; Wherein,
The PDN of up-to-date foundation connected and sets up pre-registration and specifically comprise during described PDN for current existence under this APN connected:
Mode one, subscriber equipment connect the pre-registration releasing operation by PDN, consult with goal systems, discharge the pre-registration that former PDN connects; The PDN of subscriber equipment initiation afterwards connects pre-registration and sets up operation, consults with goal systems, sets up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects; Perhaps,
Mode two, subscriber equipment are directly initiated PDN and are connected pre-registration foundation operation, consult with goal systems, by revising the pre-registration that former PDN connects, perhaps use newly-established pre-registration to cover the method for the pre-registration of former PDN connection, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
2. the method for claim 1, it is characterized in that, in the described mode two goal systems for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect set up pre-registration after, return response message and give subscriber equipment, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
3. a system that realizes switching pre-registration is characterized in that, comprising: subscriber equipment, origin system and goal systems, wherein:
Described subscriber equipment, when being used for before switching from origin system to goal systems, switching pre-registration, if goal systems does not support to exist under the same APN a plurality of PDN to connect, then only for connecting, the PDN of up-to-date foundation in all PDN connections under this APN sets up pre-registration; Described subscriber equipment, after also being used for setting up described pre-registration, maintenance phase in described pre-registration, if setting up PDN new under this APN again from origin system, described subscriber equipment connects, perhaps the described subscriber equipment PDN that deleted up-to-date foundation under this APN from origin system connects, then for the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect and set up pre-registration; Specifically comprise:
Mode one, described subscriber equipment, also be used for connecting the pre-registration releasing operation by PDN, consult with goal systems, after discharging the pre-registration of former PDN connection, initiate PDN and connect pre-registration foundation operation, consult with goal systems, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects; Perhaps,
Mode two, described subscriber equipment also are used for directly initiation PDN connection pre-registration foundation operation, and the request target system sets up pre-registration for the PDN connection of up-to-date foundation in the PDN connection of current existence under this APN;
Described goal systems, be used for initiating described PDN when connecting pre-registration and setting up operation at described subscriber equipment, by revising the pre-registration that former PDN connects, perhaps use newly-established pre-registration to cover the method for the pre-registration of former PDN connection, set up pre-registration for the PDN of up-to-date foundation in the PDN connection of current existence under this APN connects.
4. system as claimed in claim 3, it is characterized in that, goal systems in the described mode two, also be used to the PDN of current existence under this APN connect in the PDN of up-to-date foundation connect set up pre-registration after, return response message and give subscriber equipment, carry newly-established pre-registration in this response message and revise/override the indication that connects the pre-registration of setting up into former PDN.
CN200910205517.3A 2009-10-20 2009-10-20 Method and system for realizing switching prospective registration Expired - Fee Related CN102045804B (en)

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