CN103379568A - Method and device for intersystem handover - Google Patents
Method and device for intersystem handover Download PDFInfo
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- CN103379568A CN103379568A CN2012101063441A CN201210106344A CN103379568A CN 103379568 A CN103379568 A CN 103379568A CN 2012101063441 A CN2012101063441 A CN 2012101063441A CN 201210106344 A CN201210106344 A CN 201210106344A CN 103379568 A CN103379568 A CN 103379568A
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Abstract
The embodiment of the invention provides a method and device for intersystem handover. The method mainly comprises: an access gateway of a Non-3GPP system receives information, carrying an intersystem handover indication and an APN where user equipment (UE) is connected in an original 3GPP system, sent by the UE in a 3GPP system, and stores the intersystem handover indication and the APN where the user equipment (UE) is connected in the original 3GPP system; and after the access gateway of the Non-3GPP system receives attachment request information sent by the UE, the access gateway of the Non-3GPP system, based on the intersystem handover indication and the APN, selects a packet data network gateway of the APN for the UE, and allocates an IP address for the UE, wherein the IP address is the same with an IP address used in the original 3GPP system by the UE. Through the method and device for the intersystem handover, when the UE is switched from the 3GPP system to the Non-3GPP system, the PDN GW selected by the access gateway of the Non-3GPP system for the UE can be guaranteed to be the same with the PDN GW that is originally connected by the UE, the IP address allocated to the UE can be guaranteed to be the same with the original IP address, and the service that the UE is carrying out is not interrupted.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of method and apparatus of intersystem handover.
Background technology
3GPP (3rd Generation Partnership Project, third generation partner program) LTE (Long Term Evolution, Long Term Evolution) core net is EPS (Evolved Packet System, the grouping system of evolution), EPS is by S-GW (Serving Gateway, gateway), P-GW (PDN Gateway, grouped data network gateway), HSS (Home Subscriber Server, home subscriber server), 3GPP AAA (Authentication, Authorization and Accounting, authentication and authorization charging server), PCRF (Policy and Charging Rules Function, "Policy and Charging Rules Function) and other support nodes form.
Trusted Non-3GPP IP Access (non-3GPP IP access trusty) network can be WLAN (Wireless LAN, WLAN (wireless local area network)).
LTE can satisfy growing wireless data service demand as the wireless network of evolution of future generation.Because the impossible one-time-reach-place of the deployment of LTE is disposed LTE so operator generally can be chosen in hot zones in the early stage, and then is enlarged gradually the deployment scope.WLAN can be used as the additional access EPS of LTE, according to the strategy of operator LTE is implemented shunting, alleviates the data traffic pressure of LTE.
As UE (User Equipment, subscriber equipment) by behind the 3GPP Access Network access EPS, if U E is carrying out data service, this moment, U E switched to non-3G PP network from 3G PP network, non-3G PP IAD can not get access to the information of the 3G PP side data connection of original U E, non-3G PP IAD can think that this is new adhering to, redistribute a PDN GW (Packet Data Network Gateway for U E, grouped data network gateway) and new IP address, thus cause the ongoing service disconnection of UE.
Summary of the invention
Embodiments of the invention provide a kind of method and apparatus of intersystem handover, can not cover and professional continuity in the situation that WLAN can cover at the 3GPP signal guaranteeing.
A kind of method of intersystem handover comprises:
The IAD of non-third generation partner program Non-3GPP system receives and switches indication between the carrying system that the subscriber equipment in the 3GPP system sends and be connected the message of the access point that subscriber equipment connects in described 3GPP system;
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
A kind of method of intersystem handover comprises:
Switch indication between subscriber equipment in third generation partner program 3GPP system structure carrying system and be connected the message of the access point that subscriber equipment connects in described 3GPP system;
Described subscriber equipment sends described message to the IAD of described non-third generation partner program Non-3GPP system, so that
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
A kind of device of intersystem handover, this device are arranged in the IAD of non-third generation partner program subscriber equipment Non-3GPP system, comprising:
The handover relevant information acquisition module, be used for to receive the message of switching indication between the carrying system that the subscriber equipment of 3GPP system sends and be connected the access point that subscriber equipment connects in former 3GPP system, described intersystem handover is indicated and be connected the access point that subscriber equipment connects store in former 3GPP system;
The hand-off process module, be used for the intersystem handover indication of preserving according to described handover relevant information acquisition module and described access point and select grouped data network gateway under the described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in former 3GPP system is identical.
A kind of device of intersystem handover is arranged in the subscriber equipment of third generation partner program 3GPP system, comprising:
The message constructing module is used for switching between the structure carrying system indication and is connected the message of the access point that subscriber equipment connects in described 3GPP system;
Message transmission module is used for sending the message that described message constructing module is constructed to the IAD of non-third generation partner program Non-3GPP system, so that
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
Can be found out by the technical scheme that the embodiment of the invention described above provides, when the embodiment of the invention can guarantee that UE switches to the Non-3GPP system from the 3GPP system, Non-3GPP system access gateway is that the PDN GW that UE selects is the original PDN GW that connects of UE, thereby the IP address that further guarantees to distribute to UE is with original the same, and the ongoing business of UE just can not interrupted like this.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The concrete process chart of the method for a kind of intersystem handover that Fig. 1 provides for the embodiment of the invention;
UE in a kind of 3GPP system that Fig. 2 provides for another embodiment of the present invention finds WLAN, and initiates the Signalling exchange flow chart between the UE and WLAN AN (access network, Aceess Network) in the handoff procedure of WLAN;
UE in a kind of 3GPP system that Fig. 3 provides for another embodiment of the present invention finds WLAN, and initiates the Signalling exchange flow chart between the UE and WLAN AN in the handoff procedure of WLAN;
UE in a kind of 3GPP system that Fig. 4 provides for another embodiment of the present invention finds WLAN, and initiates the Signalling exchange flow chart between the UE and WLAN AN in the handoff procedure of WLAN;
The specific implementation structure chart of the device of a kind of intersystem handover that Fig. 5 provides for another embodiment of the present invention;
The specific implementation structure chart of the device of the another kind of intersystem handover that Fig. 6 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
For ease of the understanding to the embodiment of the invention, be further explained explanation below in conjunction with accompanying drawing as an example of several specific embodiments example, and each embodiment does not consist of the restriction to the embodiment of the invention.
Embodiment
This embodiment provides a kind of method of intersystem handover, and the concrete handling process of the method comprises as shown in Figure 1:
11, the IAD of Non-3GPP system receives and to switch indication between the carrying system that the UE in the 3GPP system sends and be connected the message of the access point APN that UE connects in former 3GPP system, with described intersystem handover indication be connected the APN that subscriber equipment connects store in former 3GPP system.
UE in the 3GPP system finds the Non-3GPP system and switches to the Non-3GPP system, be in the process of UE access Non-3GPP system, the IAD of Non-3GPP system receives and switches indication between the carrying system that the UE in the 3GPP system sends and be connected the message of the access point APN that UE connects in former 3GPP system.
When described Non-3GPP system is WLAN, can be to Authentication Request (authentication request) or GAS (Generic Advertisement Services, the generic advertisement service) GAS Initial Request (initial request) or Association Request (related request) message is expanded, increase handover indication (switching indication) cell and APN cell in Authentication Request after expansion or GAS Initial Request or the Association Request message, carry in the described handover indication cell and switch indication, carry the APN that described UE connects in the described APN cell in former 3GPP system.
In the process of UE access Non-3GPP system, UE sends Authentication Request or GAS Initial Request or Association Request message after the above-mentioned expansion to the IAD of Non-3GPP system.
12, the IAD of described Non-3GPP system is after receiving the Attach Request message that described UE sends, select PGW under the described APN according to the indication of described intersystem handover and described APN to described UE, give described UE distributing IP address, the IP address that the IP address of described distribution and described UE use in former 3GPP system is identical.Above-mentioned Attach Request message can be layer 3 or layer 2 Attach Request message.
Then, the IAD of described Non-3GPP system sends the message of carrying grouped data network gateway and IP address to described UE, described grouped data network gateway is the grouped data network gateway under the described access point, and the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.Carry out UE between described Non-3GPP system and the described 3GPP system and switch relevant subsequent processes.
Above-mentioned UE can be that wireless terminal also can be catv terminal, and wireless terminal can be to point to the equipment that the user provides voice and/or data connectivity, has the portable equipment of wireless connecting function or is connected to other treatment facilities of radio modem.Wireless terminal can be through wireless access network (for example, RAN, Radio Access Network) communicates with one or more core net, wireless terminal can be portable terminal, such as mobile phone (or being called " honeycomb " phone) with have the computer of portable terminal, for example, can be portable, pocket, hand-hold type, mobile device built-in computer or vehicle-mounted, they and wireless access network exchange language and/or data.For example, Personal Communications Services (PCS, Personal Communication Service) phone, cordless telephone, Session initiation Protocol (SIP) phone, wireless local loop (WLL, Wireless Local Loop) stand, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Wireless terminal also can be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile radio station (Mobile Station), travelling carriage (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), (Access Terminal) accesses terminal, user terminal (User Terminal), user agent (User Agent), subscriber equipment (User Device), terminal (STA, i.e. Station) or subscriber's installation (User Equipment).
Embodiment
U E in a kind of 3G PP system that this embodiment provides finds WLAN, and initiates in the handoff procedure of WLAN, and the Signalling exchange flow process between UE and the WLAN AN comprises following processing procedure as shown in Figure 2.
21, UE sends IEEE (Institute of Electrical and Electronics Engineers, IEEE) 802.11 Probe Request (probe requests thereby) message to WLAN AN.
22, after WLAN AN receives above-mentioned Probe Request message, return IEEE 802.11 Probe Response message to UE, carry Security Parameters (security parameter) in this Probe Response message.
23, UE sends IEEE 802.11 Authentication Request message to WLAN AN, comprise handover indication cell and APN cell in this Authentication Request message, carry in the described handover indication cell and switch indication, carry the APN that described UE connects in the described APN cell in former 3GPP system.
24, after WLAN AN receives above-mentioned Authentication Request message, obtain the indication message of carrying in the handover indication cell in the above-mentioned Authentication Request message and be connected the APN information that the UE that carries connects with the APN cell in former 3GPP system, the indication message of the obtaining APN information that connects in the former 3GPP system that is connected with UE is preserved.
Then, WLAN AN returns IEEE 802.11 Authentication Response message to UE.
25, UE sends IEEE 802.11 Association Request message to WLAN AN, carries Security Parameters in this Association Request message.
26, after WLAN AN receives above-mentioned Association Request message, return IEEE 802.11 Association Response message to UE.
27, UE sends Attach Request message to WLAN AN.
28, after WLAN AN receives above-mentioned Attach Request message, the APN information that the indication message of obtaining above-mentioned preservation is connected with UE and connects in the former 3GPP system, select the affiliated PGW of described APN for described UE, give described UE distributing IP address, the IP address that the IP address of described distribution and described UE use in former 3GPP system is identical.
29, the IAD of described Non-3GPP system sends the message of carrying PGW and IP address to described UE, and described PGW is the PGW under the described APN, and the IP address that described IP address and described UE use in described 3GPP system is identical.
Then, carry out UE between described wlan system and the described 3GPP system and switch relevant subsequent processes.
Embodiment
UE in a kind of 3GPP system that this embodiment provides finds WLAN, and initiates in the handoff procedure of WLAN, and the Signalling exchange flow process between UE and the WLAN AN comprises following processing procedure as shown in Figure 3;
31, UE sends IEEE 802.11 Probe Request message to WLAN AN.
32, after WLAN AN receives above-mentioned Probe Request message, return IEEE 802.11 Probe Response message to UE, carry Security Parameters (security parameter) in this Probe Response message.
33, UE sends IEEE 802.11 Authentication Request message to WLAN AN.
34, after WLAN AN receives above-mentioned Authentication Request message, return IEEE 802.11 Authentication Response message to UE.
35, UE sends IEEE 802.11 Association Request message to WLAN AN, carries Security Parameters in this Association Request message.Also comprise handover indication cell and APN cell in the above-mentioned Association Request message, carry in the described handover indication cell and switch indication, carry the APN that described UE connects in the described APN cell in former 3GPP system.
36, after WLAN AN receives above-mentioned Association Request message, obtain the indication message of carrying in the handover indication cell in the above-mentioned Authentication Request message and be connected the APN information that the UE that carries connects with the APN cell in former 3GPP system, the indication message of the obtaining APN information that connects in the former 3GPP system that is connected with UE is preserved.
Then, WLAN AN returns IEEE 802.11 Association Response message to UE.
37, UE sends Attach Request message to WLAN AN.
38, after WLAN AN receives above-mentioned Attach Request message, the APN information that the indication message of obtaining above-mentioned preservation is connected with UE and connects in the former 3GPP system, select the affiliated PGW of described APN for described UE, give described UE distributing IP address, the IP address that the IP address of described distribution and described UE use in former 3GPP system is identical.
39, the IAD of described Non-3GPP system sends the message of carrying PGW and IP address to described UE, and described PGW is the PGW under the described APN, and the IP address that described IP address and described UE use in described 3GPP system is identical.
Then, carry out UE between described wlan system and the described 3GPP system and switch relevant subsequent processes.
Embodiment
UE in a kind of 3GPP system that this embodiment provides finds WLAN, and initiates in the handoff procedure of WLAN, and the Signalling exchange flow process between UE and the WLAN AN comprises following processing procedure as shown in Figure 4:
41, UE sends IEEE 802.11 Probe Request message to WLAN AN.
42, after WLAN AN receives above-mentioned Probe Request message, return IEEE 802.11 Probe Response message to UE, carry Security Parameters (security parameter) in this Probe Response message.
43, UE sends IEEE 802.11 Authentication Request message to WLAN AN.
44, after WLAN AN receives above-mentioned Authentication Request message, return IEEE 802.11 Authentication Response message to UE.
45, UE sends GAS initial Request message to WLAN AN, comprise handover indication cell and APN cell in this GAS initial Request message, carry in the described handover indication cell and switch indication, carry the APN that described UE connects in the described APN cell in former 3GPP system.
Above-mentioned GAS initial Request message UE can initiatively send, and also can trigger when the Beacon frame finds that information is inadequate intercepting, and triggers in the time of also can discovery information is inadequate after receiving Probe response message.After WLAN AN receives above-mentioned GAS initial Request message, obtain the indication message of carrying in the handover indication cell in the above-mentioned GAS initial Request message and be connected the APN information that the UE that carries connects with the APN cell in former 3GPP system, the indication message of the obtaining APN information that connects in the former 3GPP system that is connected with UE is preserved.
Then, WLAN AN sends Query Request message to Sever (server).
46, Sever sends Query Response message to WLAN AN, and WLAN AN sends GAS initial Response message to UE.
47, UE sends IEEE 802.11 Association Request message to WLAN AN, carries Security Parameters in this Association Request message.
48, after WLAN AN receives above-mentioned Association Request message,
Then, WLAN AN returns IEEE 802.11 Association Response message to UE.
49, UE sends Attach Request message to WLAN AN.
410, after WLAN AN receives above-mentioned Attach Request message, the APN information that the indication message of obtaining above-mentioned preservation is connected with UE and connects in the former 3GPP system, select the affiliated PGW of described APN for described UE, give described UE distributing IP address, the IP address that the IP address of described distribution and described UE use in former 3GPP system is identical.
411, the IAD of described Non-3GPP system sends the message of carrying PGW and IP address to described UE, and described PGW is the PGW under the described APN, and the IP address that described IP address and described UE use in described 3GPP system is identical.
Then, carry out UE between described wlan system and the described 3GPP system and switch relevant subsequent processes.
Embodiment
The embodiment of the invention also provides a kind of device of intersystem handover, and this device is arranged in the IAD of Non-3GPP system, and its specific implementation structure specifically can comprise as shown in Figure 5:
Handover relevant information acquisition module 51, be used for to receive the message of switching indication between the carrying system that the UE of 3GPP system sends and be connected the access point APN that UE connects in former 3GPP system, described intersystem handover is indicated and be connected the APN that UE connects store in former 3GPP system;
Hand-off process module 52, be used for behind the Attach Request message that receives described UE transmission, the intersystem handover indication of preserving according to described handover relevant information acquisition module and described APN select PDN GW under the described APN to described subscriber equipment, give described UE distributing IP address, the IP address that described IP address and described UE use in former 3GPP system is identical.Above-mentioned Attach Request message can be layer 3 or layer 2 Attach Request message.
Concrete, described handover relevant information acquisition module 51, concrete being used for when described Non-3GPP system is wlan system, receive Authentication Request or GAS Initial Request or Association Request message after the expansion that the UE in the 3GPP system sends, carry in the Authentication Request after the described expansion or GAS Initial Request or the Association Request message and switch indication and be connected the APN that UE connects in former 3GPP system.
The embodiment of the invention also provides the device of another kind of intersystem handover, and this device is arranged in the subscriber equipment of 3GPP system, and its specific implementation structure specifically can comprise as shown in Figure 6:
Message constructing module 61 is used for switching between the structure carrying system indication and is connected the message of the access point that subscriber equipment connects in described 3GPP system;
Message transmission module 62 is used for sending the message that described message constructing module is constructed to the IAD of non-third generation partner program Non-3GPP system, so that
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
Further, described device can also comprise:
Information receiving module 63, be used for receiving the message of carrying grouped data network gateway and IP address that the IAD of described Non-3GPP system sends, described grouped data network gateway is the grouped data network gateway under the described access point, and the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
It is similar that the device of using the embodiment of the invention carries out detailed process and the preceding method embodiment of intersystem handover, repeats no more herein.
In sum, when the embodiment of the invention can guarantee that UE switches to the Non-3GPP systems such as WLAN from the 3GPP system, Non-3GPP system access gateway is that the PDN GW that UE selects is the original PDN GW that connects of UE, thereby the IP address that further guarantees to distribute to UE is with original the same, and the ongoing business of UE just can not interrupted like this.
The those skilled in the art can be well understood to, be the convenience described and succinct, only the division with above-mentioned each functional module is illustrated, in the practical application, can as required the above-mentioned functions distribution be finished by different functional modules, the internal structure that is about to device is divided into different functional modules, to finish all or part of function described above.The system of foregoing description, the specific works process of device and unit can with reference to the corresponding process among the preceding method embodiment, not repeat them here.
In several embodiment that the application provides, should be understood that, disclosed system, apparatus and method can realize by another way.For example, device embodiment described above only is schematic, for example, the division of described module or unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of unit to realize the purpose of present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics of unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) or processor (processor) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), the various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. the method for an intersystem handover is characterized in that, comprising:
The IAD of non-third generation partner program Non-3GPP system receives and switches indication between the carrying system that the subscriber equipment in the 3GPP system sends and be connected the message of the access point that subscriber equipment connects in described 3GPP system;
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
2. the method for intersystem handover according to claim 1, it is characterized in that, the IAD of described Non-3GPP system receives and switches indication between the carrying system that the subscriber equipment in the 3GPP system sends and be connected after the message of the access point that subscriber equipment connects in described 3GPP system, described intersystem handover is indicated and is connected the access point that subscriber equipment connects stores in former 3GPP system.
3. the method for intersystem handover according to claim 1, it is characterized in that, the IAD of described Non-3GPP system receives and switches indication between the carrying system that the subscriber equipment in the 3GPP system sends and be connected the message of the access point that subscriber equipment connects in former 3GPP system, comprising:
When described Non-3GPP system was wireless local area network (WLAN) system, the IAD of wireless local area network (WLAN) system received authentication request or generic advertisement service initial request or the association request message after the expansion that the subscriber equipment in the 3GPP system sends,
Carry in authentication request after the described expansion or generic advertisement service initial request or the association request message and switch indication and be connected the access point that subscriber equipment connects in described 3GPP system.
4. the method for intersystem handover according to claim 3, it is characterized in that, carry in authentication request after the described expansion or generic advertisement service initial request or the association request message and switch indication and be connected the access point that subscriber equipment connects in former 3GPP system, comprising:
Comprise in authentication request after the expansion or generic advertisement service initial request or the association request message and switch indication information element and access point cell, carry in the described switching indication information element and switch indication, carry the access point that described subscriber equipment connects in the described access point cell in former 3GPP system.
5. according to claim 3 or the method for 4 described intersystem handovers, it is characterized in that the authentication request after the described expansion or generic advertisement service initial request or association request message rise in the process of switching to wireless local area network (WLAN) system at described subscriber equipment discovery Non-3GPP system concurrency and send.
6. the method for an intersystem handover is characterized in that, comprising:
Switch indication between subscriber equipment in third generation partner program 3GPP system structure carrying system and be connected the message of the access point that subscriber equipment connects in described 3GPP system;
Described subscriber equipment sends described message to the IAD of described non-third generation partner program Non-3GPP system, so that the IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
7. the method for intersystem handover according to claim 6 is characterized in that, described subscriber equipment also comprises after the IAD of described non-third generation partner program Non-3GPP system sends described message:
Described subscriber equipment receives the message of carrying grouped data network gateway and IP address that the IAD of described Non-3GPP system sends, described grouped data network gateway is the grouped data network gateway under the described access point, and the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
8. the device of an intersystem handover is characterized in that, this device is arranged in the IAD of non-third generation partner program subscriber equipment Non-3GPP system, comprising:
The handover relevant information acquisition module, be used for to receive the message of switching indication between the carrying system that the subscriber equipment of 3GPP system sends and be connected the access point that subscriber equipment connects in former 3GPP system, described intersystem handover is indicated and be connected the access point that subscriber equipment connects store in former 3GPP system;
The hand-off process module, be used for the intersystem handover indication of preserving according to described handover relevant information acquisition module and described access point and select grouped data network gateway under the described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in former 3GPP system is identical.
9. the device of intersystem handover according to claim 8 is characterized in that:
Described handover relevant information acquisition module, concrete being used for when described Non-3GPP system is wireless local area network (WLAN) system, receive authentication request or generic advertisement service initial request or association request message after the expansion that the subscriber equipment in the 3GPP system sends, carry in the authentication request after the described expansion or generic advertisement service initial request or the association request message and switch indication and be connected the access point that subscriber equipment connects in former 3GPP system.
10. the device of an intersystem handover is characterized in that, is arranged in the subscriber equipment of third generation partner program 3GPP system, comprising:
The message constructing module is used for switching between the structure carrying system indication and is connected the message of the access point that subscriber equipment connects in described 3GPP system;
Message transmission module is used for sending the message that described message constructing module is constructed to the IAD of non-third generation partner program Non-3GPP system, so that
The IAD of described Non-3GPP system is selected grouped data network gateway under the described access point according to described intersystem handover indication and described access point to described subscriber equipment, give described user equipment allocation IP address, the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
11. the device of intersystem handover according to claim 10 is characterized in that, described device also comprises:
Information receiving module, be used for receiving the message of carrying grouped data network gateway and IP address that the IAD of described Non-3GPP system sends, described grouped data network gateway is the grouped data network gateway under the described access point, and the IP address that described IP address and described subscriber equipment use in described 3GPP system is identical.
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| CN201210106344.1A CN103379568B (en) | 2012-04-12 | 2012-04-12 | The method and apparatus of intersystem handover |
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| CN201210106344.1A CN103379568B (en) | 2012-04-12 | 2012-04-12 | The method and apparatus of intersystem handover |
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| CN103379568A true CN103379568A (en) | 2013-10-30 |
| CN103379568B CN103379568B (en) | 2016-08-10 |
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| CN201210106344.1A Active CN103379568B (en) | 2012-04-12 | 2012-04-12 | The method and apparatus of intersystem handover |
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| CN111183675A (en) * | 2018-01-03 | 2020-05-19 | Oppo广东移动通信有限公司 | Method and device for switching between systems |
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| CN103379568B (en) | 2016-08-10 |
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