CN101511110B - Mobile ip rapidly switching method and system between different networks - Google Patents

Mobile ip rapidly switching method and system between different networks Download PDF

Info

Publication number
CN101511110B
CN101511110B CN2008101665562A CN200810166556A CN101511110B CN 101511110 B CN101511110 B CN 101511110B CN 2008101665562 A CN2008101665562 A CN 2008101665562A CN 200810166556 A CN200810166556 A CN 200810166556A CN 101511110 B CN101511110 B CN 101511110B
Authority
CN
China
Prior art keywords
message
portable terminal
ggsn
sgsn
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008101665562A
Other languages
Chinese (zh)
Other versions
CN101511110A (en
Inventor
金永洛
姜灿求
金圣根
任钟太
徐庆教
赵真晟
赵宰浩
白容圭
金权泽
朴相河
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SK Telecom Co Ltd
Industry Academic Cooperation Foundation of Kyung Hee University
Original Assignee
SK Telecom Co Ltd
Industry Academic Cooperation Foundation of Kyung Hee University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020080015145A external-priority patent/KR100955999B1/en
Priority claimed from KR1020080015589A external-priority patent/KR100920302B1/en
Application filed by SK Telecom Co Ltd, Industry Academic Cooperation Foundation of Kyung Hee University filed Critical SK Telecom Co Ltd
Publication of CN101511110A publication Critical patent/CN101511110A/en
Application granted granted Critical
Publication of CN101511110B publication Critical patent/CN101511110B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]

Landscapes

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

Abstract

The invention relates to a method and a system for quickly shifting the mobile internet protocol (IP) among the different networks. When the mobile terminal is receiving the service by the first mobile communication network, the terminal receives the measured report message comprising L2 information and L3 information from the wireless controller of the second mobile communication network, the mobile terminal sends the conversation building (activating the PDP context) request to SGSN and sends the FBU comprising p CoA and N CoA to an accessing router. The SGSN builds the conversation with the mobile terminal and sends the PDP context request built by the LLA of the mobile terminal to the GGSN to build the GGSN conversation (PDP context). The accessing router forms the channel of the GGSN based on the n CoA in the FBU message, routing the data pointing to the p CoA to the GGSN. Thereby the L2 information and L3 information provides the gapless mobile to the user based on the mobile IP service.

Description

Be used between heterogeneous networks, moving IP fast switching method and system
Technical field
The present invention relates to be used between heterogeneous networks, carry out Mobile Internet Protocol (IP) fast switching method and system; More particularly; Relate to such being used for and between heterogeneous networks, move IP fast switching method and system; Wherein when RNC broadcasts the measurement report message that comprises layer 2 (L2) information and layer 3 (L3) information; Portable terminal is created new Care-of Address (New Care of Address) (being called " nCoA " hereinafter) through utilizing the L3 information in the measurement report message; And when quick Binding Update (FBU) message of the nCoA that will comprise establishment sends to couple in router (AR); This couple in router is created to the tunnel (tunnel) of time-division synchronization CDMA (TD-SCDMA) network that portable terminal inserts based on the information of FBU message, minimized the packetization delay that when the switching of portable terminal, occurs thus and lose.
Background technology
Along with Internet user's the increase and the development of internet, applications technology, not only in the available data network but also in the correlation technique of for example wired, Internet protocol has obtained extensive use.
Therefore, rely on complete IP network, next-generation communication network from the terminal to the core network towards IP-based configuration and standardization.
And the Internet user requires and the irrelevant various services of network type, hopes to create association (association) network that satisfies customer requirements.
Yet, these networks by stand-alone development and use different codes and standards.Therefore, for together, must consider the for example various factors of architecture, protocol architecture, mobility, service quality, authentication, safety and charging with each network associate.Further, must revise and mend fair every kind of situation.
Because this association between the diverse network becomes indispensable, therefore in order to make the user receive seamless service, not only relational structure but also the portable terminal handover scheme in relational structure all is indispensable.
Now, universal scheme comprises following scheme, and this scheme is used and is used in the mobile IP in the homogeneous network at present.Also use other schemes, for example be used to reduce packetization delay of moving IP and the quick switching of losing.
Yet above conventional method is carried out switching through exchange based on the message of IP layer (that is, layer 3 (L3)), and this method is problematic, and this is because during transmitting L3 message, produce packetization delay and lose.
In addition, sequentially carry out the switching of link layer (that is layer 2 (L2)) and the switching of L3.Thereby the shortcoming of existence is, from breaking off time point that L2 connects to setting up the time point that L3 connects, can not send to the terminal and divide into groups.
Summary of the invention
Thereby; Make the present invention in view of the problems referred to above that occur in the prior art; And the purpose of this invention is to provide a kind of be used between heterogeneous networks, moving IP fast switching method and system, wherein can carry out the switching between TD-SCDMA network and other networks effectively through the optimization between link layer (L2) and the network layer (L3).
Another object of the present invention provides a kind of be used between heterogeneous networks, moving IP fast switching method and system, wherein can minimize switching time and packet loss through minimizing redundant message on every layer of basis.
Another object of the present invention provides a kind of be used between heterogeneous networks, moving IP fast switching method and system; Wherein, can provide seamless to the user based on mobile IP service and move through using L2 message and L3 message to come the switching between the Optimization Layer.
In order to realize above purpose; According to an aspect of the present invention; A kind of mobile IP fast switching method the heterogeneous networks that is used for carrying out from first mobile communications network to second mobile communications network is provided; Wherein first mobile communications network comprises couple in router, and second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is used for the base station is controlled; And service universal packet wireless business affair (GPRS) support node (SGSN) and gateway support node (GGSN), they are connected to radio network controller and to portable terminal service are provided; This method may further comprise the steps: (a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information, portable terminal is set up (activating packet data protocol (PDP) context) request message and is sent quick Binding Update (FBU) message that comprises pCoA (previous Care-of Address) and nCoA (Care-of Address newly) to couple in router to the session that SGSN sends the information that comprises network to be accessed; (b) when receiving session foundation (PDP context activating) request message from portable terminal; SGSN sets up the session with portable terminal; And send the establishment PDP Context request message of the link local address (LLA) comprise portable terminal to GGSN, to set up the session (PDP Context) with GGSN; And (c) when receiving FBU message from portable terminal, couple in router is set up the tunnel with GGSN based on being included in the nCoA in the FBU message, and the data that will point to pCoA are with tunnel transmission and be routed to GGSN.
Step (b) and step (c) are side by side carried out.
This method may further include following steps: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
Portable terminal receives said data with tunnel transmission via said GGSN from said couple in router.
Step (b) may further comprise the steps: when receiving said session when setting up request message, said SGSN sends to said radio network controller with radio bearer (RAB) allocation request message; When receiving said RAB allocation request message, said radio network controller is set up the Radio Link with said base station, and RAB is set up message sends to said portable terminal; When receiving quick binding acknowledgement (FBAck) message from said couple in router; Said portable terminal is set up the Radio Link that message is established to said radio network controller according to said RAB, and the RAB that will comprise itself LLA sets up and accomplishes message and send to said radio network controller; Set up when accomplishing message when receiving said RAB, said radio network controller will comprise that the RAB of said LLA distributes acknowledge message to send to said SGSN; And said SGSN will comprise that the said establishment PDP Context request message of said LLA sends to said GGSN, setting up the session with said GGSN, and session set up accomplish message and send to said portable terminal.
Said SGSN is included in said RAB through inspection and distributes said LLA in the acknowledge message to identify said portable terminal to have inserted said second mobile communications network, and via said couple in router said data with tunnel transmission is sent to said portable terminal.
In step (a), said portable terminal is created the new IP address (nCoA) that will after switching, use based on the said L3 information that is included in the said measurement report message.
Step (c) may further comprise the steps: when receiving said FBU message from said portable terminal, will comprise that switching initial message at least a among the said LLA of said portable terminal, said pCoA and the said nCoA sends to said GGSN; Said GGSN carries out duplicate address detection to the said nCoA that is included in the said switching initial message, and when said nCoA is unique address, will send to said couple in router to the response message of said switching initial message; Said couple in router is set up the said tunnel with said GGSN based on said nCoA, in response to said FBU message FBAck message is sent to said portable terminal subsequently; And said couple in router will point to said pCoA data with tunnel transmission to said GGSN.
Said portable terminal comprises multi-protocol stack and the many antennas that is used between heterogeneous networks, switching.
Said first mobile communications network is that the wideband code division multichannel inserts a kind of among (WCDMA), time-division synchronization CDMA (TD-SCDMA), micro-wave access to global intercommunication (WiMAX) and the CDMA, and said second mobile communications network is TD-SCDMA.
According to a further aspect of the invention; A kind of mobile IP fast switching method the heterogeneous networks that is used for carrying out from first mobile communications network to second mobile communications network is provided; Wherein said first mobile communications network comprises couple in router; Said second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is used for said base station is controlled; And SGSN and GGSN; They are connected to said radio network controller and to said portable terminal service are provided; This method may further comprise the steps: (a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information, said portable terminal will comprise that session foundation (PDP context activating) request message of the information of network to be accessed sends to said SGSN; (b) when receiving said session from said portable terminal when setting up request message, said SGSN sends to said radio network controller with the RAB allocation request message; (c) said radio network controller is set up the Radio Link with said portable terminal based on said RAB allocation request message; And when receiving the RAB foundation completion message that comprises nCoA from said portable terminal, will comprise that the RAB of said nCoA distributes acknowledge message to send to said SGSN; (d) said SGSN will comprise that the establishment PDP Context request message of said nCoA sends to said GGSN; (e) said GGSN will comprise that the FBU message of said nCoA sends to said couple in router; (f) said couple in router is based on the said nCoA of said FBU message and create the tunnel with said GGSN, and FBAck message is sent to said GGSN; And (g) when when said couple in router receives FBAck message; Said GGSN sets up the session with said SGSN; Tunnel through said establishment sends one and creates the PDP Context acknowledge message, and will send to said portable terminal with the data of tunnel transmission from said couple in router.
This method further comprises step: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
Step (c) may further comprise the steps: when receiving said RAB allocation request message, said radio network controller reconfigures Radio Link (RLR) ready (ready) message and sends to said base station; Said base station in response sends to said radio network controller in the ready information of said RLR with RLR preparation (standby) message; Said radio network controller sends to RLR execution (commit) message said base station and RAB is set up message and sends to said portable terminal; When setting up (setup) message according to said RAB and be established to the said Radio Link of said radio network controller, said portable terminal will comprise that the said RAB of itself nCoA sets up to be accomplished message and sends to said radio network controller; And said radio network controller will comprise that the said RAB of said nCoA distributes acknowledge message to send to said SGSN.
Said couple in router through and said GGSN between set up tunnel and the data forwarding that will point to pCoA to said nCoA.
According to a further aspect of the invention; A kind of mobile IP fast switching method of carrying out from first mobile communications network to second mobile communications network the heterogeneous networks is provided; Wherein said first mobile communications network comprises couple in router; Said second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is used for said base station is controlled; SGSN and GGSN; They are connected to said radio network controller and to said portable terminal service are provided; And home agent (HA); This method may further comprise the steps: (a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information, said portable terminal will comprise that session foundation (PDP context activating) request message of the information of network to be accessed sends to said SGSN; (b) said SGSN sets up request message according to said session and sets up the RAB with said portable terminal, sets up the session with said GGSN, and session is set up accomplish message and send to said portable terminal; And (c) set up when accomplishing message when receive said session from said SGSN, said portable terminal will comprise that the binding update messages of itself nCoA sends to said HA, and when when said HA receives ACK message, reception is by the data of said HA route.
Step (b) may further comprise the steps: when receiving said session from said portable terminal when setting up (PDP context activating) request message, said SGSN sends to said radio network controller with the RAB allocation request message; Said radio network controller is set up the Radio Link with said base station according to said RAB allocation request message, and RAB is set up message sends to said portable terminal; Said portable terminal is set up the RAB that message is established to said radio network controller according to said RAB, subsequently RAB is set up completion message and sends to said radio network controller; Said radio network controller distributes acknowledge message to send to said SGSN RAB; And the establishment PDP Context request message that said SGSN will be used to set up with the session of said GGSN sends to said GGSN, and when receiving when creating the PDP Context acknowledge message, said session set up accomplish message and send to said portable terminal.
This method further may further comprise the steps: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
According to a further aspect of the invention; A kind of system that IP switches that moves from first mobile communications network to second mobile communications network is provided; This system comprises: radio network controller; It is broadcasted the measurement report message that comprises L3 information and L2 information, and wherein said L3 information and said L2 information comprise IP address and network prefix; Portable terminal, when when said radio network controller receives measurement report message, this portable terminal is created nCoA based on being included in the L3 information in the corresponding message, and request message is set up in session is sent to SGSN; This SGSN, when receiving session from portable terminal when setting up request message, this SGSN sets up the session with said portable terminal through the Radio Link of foundation and radio network controller and base station, and sets up to the GGSN queued session; This GGSN, it is according to setting up from the said session request of setting up of said SGSN and the session of said SGSN, and will send to said portable terminal with the data of tunnel transmission from couple in router; And this couple in router; Its execution is used for the gateway function that matees with Internet; When said portable terminal or said GGSN receive the FBU message that comprises said nCoA; Said couple in router is carried out the tunnel transmission with said GGSN, and the grouping that will offer said couple in router is with the said portable terminal of tunnel transmission/be routed to.
This system further comprises: HA; When said portable terminal receives the binding update messages that comprises nCoA; This HA himself is registering said nCoA, and will offer the said GGSN of forwarding a packet to of pCoA through carrying out with the tunnel transmission of said couple in router.
When the session of setting up with said SGSN, said portable terminal uses RAB to set up to accomplish message the end message that comprises LLA is provided to said SGSN.
Said couple in router is arranged in said first mobile communications network.
Said radio network controller, said SGSN and said GGSN are arranged in said second mobile communications network.
Description of drawings
Can understand further purpose of the present invention and advantage in conjunction with accompanying drawing more fully from following detailed description, wherein:
Fig. 1 illustrates the figure that is used for the quick switched system of mobile IP from a network to the TD-SCDMA network according to of the present invention;
Fig. 2 and 3 illustrates according to operational flowchart first embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network;
Fig. 4 illustrates according to operational flowchart second embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network; And
Fig. 5 and Fig. 6 illustrate according to operational flowchart third embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
Embodiment
To understand detailed description with reference to accompanying drawing more fully from following detailed description according to above-mentioned purpose of the present invention, technical configuration and operating effect thereof.Hereinafter, will combine execution mode to describe the present invention in detail with reference to accompanying drawing.
Fig. 1 illustrates the figure that is used for the quick switched system of mobile IP from a network to the TD-SCDMA network according to the present invention.
With reference to Fig. 1; Be used for moving the system that IP switches to the TD-SCDMA network; Network 110 is meant a kind of in TD-SCDMA, WLAN (WLAN), the micro-wave access to global intercommunication (WiMAX) etc., and comprises base station (BS) 112, controller (not shown), mobile switching centre's (not shown) and couple in router 114.
Couple in router 114 is carried out function and the grouping that will provide of current location information that be used for the gateway function of the Internet coupling, be used for keeping portable terminal with tunnel transmission/the route to function of portable terminal.
If receive the FBU message that comprises nCoA from gateway general packet radio service (GPRS) support node (GGSN) 158 or the portable terminal 100 of TD-SCDMA network 150, then couple in router 114 is forwarded to GGSN158 through carrying out the grouped data that will be sent to existing network 110 with the tunnel transmission of GGSN158.In response to this, the data that portable terminal 100 receives with tunnel transmission from couple in router 114.
Base station 112, controller, mobile switching centre etc. have the operation identical operations with prior art, and omit the detailed description to them.
TD-SCDMA network 150 is below described.
TD-SCDMA network 150 comprises: base station (Node B) 152, and it is used for and portable terminal 100 radio communications; Radio network controller (RNC) 154 is used to control base station 152; Serving GPRS Support Node (SGSN) 156, it is coupled to radio network controller 154, and to portable terminal 100 service is provided; GGSN158, it is used for IP address assignment and internet packet network insertion; And home agent (HA) 160.
Portable terminal 100 is according to setting up request and automatically carry out the terminal that process and transmission or receiving block data are set up in session from the session of mobile communications network.
Portable terminal 100 is through utilizing wireless application protocol (wap) (being the Wi-Fi (Wireless Internet Access) agreement), use the Microsoft Internet Explorer (MIE) based on HTML, portable equipment host-host protocol (HDPT), FTP function of http protocol etc., from mobile communications network receiving block data/send grouped data to mobile communications network.
Portable terminal 100 comprises multi-protocol stack and many antennas, can insert TD-SCDMA network 150 and network 110 between heterogeneous networks, to switch through multi-protocol stack and many antennas.
If from network 110, providing the radio network controller 154 of service to receive the measurement report message that comprises L2 information and L3 information over against it, then portable terminal 100 sends activation packet data protocol (PDP) context request message of the information that comprises network to be accessed to SGSN156.Measurement report message comprises L3 information and the L2 information with IP address and prefix.
Portable terminal 100 requests are set up to send grouped data with the session of SGSN156.This processing is commonly referred to " PDP context activating request " and handles.
If receive the measurement report message that comprises L3 information from radio network controller 154, the new IP address (nCoA) that will after switching, use based on the L3 information creating that comprises in the measurement report information of portable terminal 100 then.
Base station 152 is carried out with wireless access termination (termination) function of portable terminal 100 according to the wireless access standard and is carried out the function of sending and receiving voice, video and data communication, and through transmitting antenna to portable terminal 100 transmission information/through reception antenna from portable terminal 100 reception information.
Radio network controller 154 is responsible for following functions, and this function for example agreement coupling, the agreement coupling of base station, the soft handover of wire/wireless channel management, portable terminal 100 is handled, is written into agreement coupling, GPRS access, fault management and the system of core network.Here, GPRS is the communication system of asynchronous scheme, its support 384Kbps data transfer rate, multimedia mail is provided, and send the efficient that has maximized the transtation mission circuit circuit through the data of grouped element.
In addition, radio network controller 154 is created and the broadcasting measurement report message, and this measurement report message comprises L3 information and the L2 information with IP address and network prefix.
SGSN (Serving GPRS Support Node) 156 support to be used for the portable terminal 100 of GPRS service mobile management, caller/called call handling process, be used to handle session management, authentication and the billing function etc. of the transmission and the reception of grouped data.
GGSN (Gateway GPRS Support Node) 158 is based on the service node of the packet network of IP, and the packet data service that this IP-based packet network is GPRS provides quick packet data service.GGSN158 is used for packet data service to portable terminal 100 distributing IP addresses, and session is managed, and carries out the route processing capacity of grouped data, and is provided for connecting the interface of TS-SCDMA150 and the Internet.
HA160 carry out to keep the current location information of portable terminal among the GGSN158, with tunnel transmission/routing packets, handle the function of address assignment and the mobile IP address of management.
Promptly; Receiving from portable terminal 100 under the situation of the binding update messages that comprises nCoA; HA160 is registered to himself with nCoA, the tunnel transmission of the couple in router 114 of execution and network 110, and will be forwarded to GGSN158 from the grouped data that existing network 110 transmits.In response to this, the data that portable terminal 100 receives with tunnel transmission from couple in router 114.
Hereinafter, illustrate and describe method when portable terminal 100 is handled the switching from first mobile communications network, 110 to TD-SCDMA networks 150.
Fig. 2 illustrates according to operational flowchart first embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
First mobile communications network of describing hereinafter can be a kind of among WCDMA, WIMAX, TD-SCDMA and the WLAN.
With reference to Fig. 2; When portable terminal when the communication zone of first mobile communications network moves to the communication zone of TD-SCDMA network, this portable terminal receives from radio network controller and indicates this portable terminal and will move to the TD-SCDMA network and comprise L2 information and the measurement report message of L3 information (S200).
L2 information refers to link connectivity key element, and for example according to the two variation or the variation of bandwidth of incident of variation of the signal power of L2 layer (link layer) and error rate, and L3 information comprises IP address, network prefix etc.
Radio network controller is sent to portable terminal through measurement report message with the cell information of current network.Simultaneously, not only send to portable terminal with cell information but also with the L3 information of the GGSN under the radio network controller.Therefore, can anticipate router solicitation (solicitation)/announcement (advertisement) process that moves IP, thereby reduce switching delay effectively.
After execution in step S200; Portable terminal will comprise that the PDP context activating request message of the information of network to be accessed sends to SGSN; Thereby the session (S202) of the SGSN of foundation and TD-SCDMA network; And FBU message sent to couple in router, thereby bind address (previous Care-of Address: be called " pCoA " hereinafter) and the nCoA (S204) that is now using.
PDP context activating request message is meant that session sets up request message, and the information of network to be accessed comprises QoS, PDP config option of NSAPI, TI, PDP type, pdp address, APN, request etc.
The new IP address (nCoA) that portable terminal will use after switching based on the L3 information creating of measurement report message, and quick binding update messages sent to couple in router to bind pCoA and nCoA.
The SGSN that has received PDP context activating request message through step S202 sends to radio network controller (S206) with radio bearer (RAB) allocation request message.
Therefore, radio network controller response RAB allocation request message reconfigures to the Radio Link (S208) of base station, and RAB is set up message sends to portable terminal (S210).
In addition, the couple in router that has received FBU message from portable terminal through step S204 forms the tunnel (S212) with GGSN in response to FBU message, and quick binding acknowledgement (FBAck) message is sent to portable terminal (S214).
Received the portable terminal that RAB sets up message through step S210 and set up the Radio Link that message is established to radio network controller, and RAB set up accomplish message and send to radio network controller (S216) in response to this RAB.
At this moment, portable terminal will comprise that the RAB of the link local address (LLA) of itself sets up completion message and sends to radio network controller, thereby can anticipate quick neighbor advertisement (FNA) process of quick switching, therefore can reduce the switching delay time.
The radio network controller that has received RAB foundation completion message through step S216 will comprise that the RAB of LLA distributes acknowledge message to send to SGSN (S218).
In response to this, SGSN set up with the session (establishment PDP Context) of GGSN (S220), and PDP context activating set up accomplishes message (session is set up and accomplished message) and send to portable terminal (S222).
SGSN sets up completion message with PDP context activating and is sent to portable terminal, with the connection of inspection PDP Context.In addition, SGSN identifies current terminal and has inserted the TD-SCDMA network after the LLA that has checked portable terminal, and prepares and will be sent to portable terminal from the data that previous network receives.
Receive PDP context activating and set up the packet (S224) that the portable terminal of completion message is transmitted by couple in router from the GGSN reception.
With the same in the above processing, the call treatment message of TD-SCDMA is moved with the call treatment message of switching fast concurrently.Thereby, do not wait for the call treatment of TD-SCDMA owing to can carry out call treatment message simultaneously, so can spend the less switching delay time.
Fig. 3 illustrates in greater detail according to operational flowchart first embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
With reference to Fig. 3; When portable terminal when the communication zone of first mobile communications network moves to the communication zone of TD-SCDMA network, this portable terminal receives from radio network controller and indicates portable terminal and will move to the TD-SCDMA network and comprise L2 information and the measurement report message of L3 information (S300).
After execution in step S300, portable terminal will comprise that the PDP context activating request message of the information of network to be accessed sends to SGSN (S302), and FBU message is sent to couple in router, to bind PcoA and nCoA (S304).
The SGSN that has received PDP context activating request message sends to radio network controller (S306) with the RAB allocation request message.
Therefore, radio network controller reconfigures Radio Link (RLR) ready message in response to the RAB allocation request message and sends to base station (S308).If receive RLR preparation (standby) message (S310) from the base station in response to the ready message of RLR, then radio network controller is carried out (commit) message with RLR and is sent to base station (S312), and RAB is set up message sends to portable terminal (S314).
Further, will switch initially from the couple in router that portable terminal receives FBU message through step S304 that (Handover Initial, HI) message sends to GGSN, to set up the tunnel (S316) with GGSN.
That is, portable terminal will comprise that the FBU message of nCoA sends to couple in router.If receive FBU message from mobile radio station, then couple in router sends to GGSN with HI message, to carry out the quick switching of portable terminal.Here; HI message is following message; Promptly this message is suitable for carrying out the duplicate address detection of the nCoA of portable terminal (Duplicate Address Detection, DAD) and the tunnel of foundation and couple in router and GGSN, and HI message comprises LLA, pCoA and the nCoA of portable terminal.
The GGSN that has received HI message through step S316 carries out the DAD to nCoA.As the result of DAD, if nCoA is a unique address, then GGSN sends to couple in router (S318) in response to this HI message with switch acknowledgment message (HACK).
That is the GGSN that, has received HI message carries out DAD to the nCoA that is included in the HI message.As the result of DAD, if confirm that nCoA is the unique address in the corresponding subnet, then GGSN is stored in the nCoA of portable terminal in the proxy neighbor buffer memory (proxy neighbor cache), and the tunnel of formation and couple in router.
The tunnel of GGSN formation with couple in router below described.Yet the couple in router that has received HACK message can be set up the tunnel with GGSN.
The couple in router notice portable terminal that has received HACK message through step S318 has been accomplished tunnel foundation as the result of DAD, and is ready to use quick binding acknowledgement (FBAck) message to switch (S320) fast.
If set up the tunnel between couple in router and the GGSN as stated, then couple in router will point to pCoA whole group with tunnel transmission to nCoA.Thereby, be sent to portable terminal with the data of tunnel transmission through GGSN.
Further, received the portable terminal that RAB sets up message through step S314 and set up the link that message is established to radio network controller, and RAB set up accomplish message and send to radio network controller (S322) in response to RAB.
The radio network controller that has received RAB foundation completion message through step S322 will comprise that the RAB of LLA (it is included in RAB and sets up in the completion message) distributes acknowledge message to send to SGSN (S324).
In response to this, SGSN will comprise that the establishment PDP Context request message of LLA sends to GGSN, with the session (S326) of foundation with GGSN.If receive establishment PDP Context acknowledge message (S328) in response to creating the PDP Context request message from GGSN, then SGSN sets up completion message with PDP context activating and sends to portable terminal (S330).
In other words, SGSN uses the information be included in the network to be accessed in the PDP context activating request message to confirm the IP address of GGSN, links together with the PDP Context with itself PDP Context and GGSN.
SGSN will comprise that subsequently the establishment PDP Context request message of LLA sends to the IP address through the GGSN that confirms, and check the connection of PDP Context according to affirmation therefrom.
Then, SGSN sets up completion message with PDP context activating and sends to portable terminal, with the connection of inspection PDP Context.
SGSN identifies current terminal through the LLA that checks portable terminal and has inserted the TD-SCDMA network, and its is prepared and will be sent to portable terminal from the data that previous network receives subsequently.
Receive PDP context activating through step S330 and set up the packet (S332) that the portable terminal of completion message is transmitted by couple in router from the GGSN reception.
Fig. 4 illustrates according to operational flowchart second embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
Hereinafter, first mobile communications network can be a kind of among WCDMA, WIMAX, TD-SCDMA, the WLAN etc.
With reference to Fig. 4; When portable terminal when the communication zone of first mobile communications network moves to the communication zone of TD-SCDMA network, portable terminal receives from radio network controller and indicates portable terminal and will move to the TD-SCDMA network and comprise L2 information and the measurement report message of L3 information (S400).
After execution in step S400, portable terminal will comprise that the PDP context activating request message of the information of network to be accessed sends to SGSN, with the session (S402) of foundation with the SGSN of TD-SCDMA network.
The SGSN that has received PDP context activating request message sends to radio network controller with the RAB allocation request message, with the Radio Link (S404) that is established to portable terminal.
Therefore, radio network controller reconfigures the Radio Link (S406) with the base station according to the RAB allocation request message, and RAB is set up message sends to portable terminal (S408).In other words, if receive the RAB allocation request message from SGSN, then radio network controller reconfigures message with Radio Link and sends to the base station.Reconfigure ready message if receive Radio Link from the base station, then radio network controller reconfigures execution message with Radio Link and sends to the base station.
Then, radio network controller is set up (RAB foundation) message with radio bearer and is sent to portable terminal.
Received portable terminal that RAB sets up message and be established to the Radio Link of radio network controller in response to RAB sets up message, and RAB set up accomplish message and send to radio network controller (S410).Here, RAB foundation completion message comprises the new IP address (nCoA) of after switching, creating based on the L3 information that is included in the measurement report message.
As stated, portable terminal set up to be accomplished message with RAB and is sent to radio network controller with the nCoA of portable terminal, thereby can anticipate quick neighbor advertisement (FNA) process of quick switching.Thereby, can reduce the switching delay time.
Received RAB through step S410 from portable terminal and set up the radio network controller of accomplishing message, will comprise that the RAB of nCoA (it is included in RAB and sets up in the completion message) distributes acknowledge message to send to SGSN (S412).
In response to this, SGSN will comprise that the establishment PDP Context request message of nCoA sends to GGSN, with the session (S414) of foundation with GGSN.
In other words; SGSN uses the information be included in the network to be accessed in the PDP context activating request message to confirm to create the IP address of PDP Context request message with the GGSN that is sent to, and links together with the PDP Context with itself PDP Context and GGSN.
SGSN will comprise that subsequently the establishment PDP Context request message of nCoA sends to the corresponding GGSN in IP address that confirms with process.
Then, GGSN will comprise that the FBU message of nCoA sends to couple in router, to set up the tunnel (S416) with couple in router based on being included in the nCoA that creates in the PDP Context request message.
The couple in router inspection is included in the nCoA in the FBU message, whether has set up the tunnel with inspection.Result as inspection; If do not set up the tunnel as yet; Then couple in router is set up the tunnel with GGSN based on nCoA, and will indicate and accomplish that the tunnel is set up and quick binding acknowledgement (FBAck) message having prepared to switch fast sends to GGSN (S418).
If set up the tunnel between couple in router and the GGSN as stated, then couple in router will point to pCoA whole group with tunnel transmission to nCoA.In response to this, be sent to portable terminal through GGSN with the data of tunnel transmission.
After execution in step S418, GGSN has created the PDP Context acknowledge message and has sent it to SGSN (S420).SGSN sets up completion message with PDP context activating and sends to portable terminal (S422).
GGSN checks the connection of PDP Context through creating the PDP Context acknowledge message.
Receive PDP context activating through step S422 and set up the packet (S424, S426) that the portable terminal of completion message is transmitted by couple in router from the GGSN reception.That is, the data of portable terminal are forwarded and are sent to the GGSN of TD-SCDMA network through the tunnel of creating.
Fig. 5 illustrates according to operational flowchart third embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
Hereinafter, first mobile communications network can be a kind of among WCDMA, WIMAX, TD-SCDMA, the WLAN etc.
With reference to Fig. 5; When portable terminal when the communication zone of first mobile communications network moves to the communication zone of TD-SCDMA network, portable terminal receives from radio network controller and indicates portable terminal and will move to the TD-SCDMA network and comprise L2 information and the measurement report message of L3 information (S500).
After execution in step S500, portable terminal will comprise that the PDP context activating request message of the information of network to be accessed sends to SGSN, with the session (S502) of foundation with the SGSN of TD-SCDMA network.
The SGSN that has received PDP context activating request message sets up the RAB (S504) with portable terminal, sets up the PDP Context (S506) with GGSN, and PDP context activating is set up accomplish message and send to portable terminal (S508).
Having received PDP context activating set up to accomplish the binding update messages that the portable terminal of message will comprise itself nCoA and sends to HA (S510).Here, nCoA is the new IP address that will after switching, use, and is created based on being included in the L3 information in the measurement report message by portable terminal.
Portable terminal sends to HA with binding update messages, to bind pCoA and nCoA.
After execution in step S510, HA is registered to himself with the nCoA of portable terminal, and Binding Update ACK message is sent to portable terminal (S512).HA will be to its grouping that provides with tunnel transmission/be routed to portable terminal.
In response to this, portable terminal receives the packet (S514) that provides through HA.
That is, portable terminal implements the handoff procedure of new region when exchanging Binding Update ACK message according to the process that moves IP, and receives new grouped data through HA, GGSN, SGSN, radio network controller and base station.
Fig. 6 illustrates in greater detail according to operational flowchart third embodiment of the invention, that handle the fast switching method from first mobile communications network to the TD-SCDMA network.
With reference to Fig. 6; When portable terminal when the communication zone of first mobile communications network moves to the communication zone of TD-SCDMA network, portable terminal receives from radio network controller and indicates portable terminal and will move to the TD-SCDMA network and comprise L2 information and the measurement report message of L3 information (S600).
After execution in step S600, portable terminal will comprise that the PDP context activating request message of the information of network to be accessed sends to SGSN, thus the session (S602) of the SGSN of foundation and TD-SCDMA network.
The SGSN that has received PDP context activating request message sends to radio network controller (S604) with the RAB allocation request message.
In response to this, radio network controller reconfigures Radio Link (RLR) message according to the RAB allocation request message and sends to base station (S606).Reconfigure (RLR) ready message (S608) if receive Radio Link from the base station, then radio network controller is carried out message with RLR and is sent to base station (S610).
Then, radio network controller is set up message with RAB and is sent to portable terminal (S612).Set up completion message (S614) if receive RAB from portable terminal, then radio network controller distributes acknowledge message to send to SGSN (S616) RAB.
In response to this, SGSN will create the PDP Context request message and send to GGSN, thus the session (S618) of foundation and GGSN.If receive PDP Context acknowledge message (S620) from GGSN, then SGSN sets up completion message with PDP context activating and sends to portable terminal (S622).
That is, SGSN will create the PDP Context request message and send to GGSN, so that PDP Context of itself and the PDP Context of GGSN are linked together, and confirm the connection of PDP Context according to the affirmation from GGSN.Then, SGSN sets up completion message with PDP context activating and sends to portable terminal, with the connection of inspection PDP Context.
Having received PDP context activating set up to accomplish the binding update messages that the portable terminal of message will comprise itself nCoA and sends to HA (S624).Here, nCoA is the new IP address that will after switching, use, and is created based on being included in the L3 information in the measurement report message.
After execution in step S624, HA is registered to himself with the nCoA of portable terminal, and Binding Update ACK message is sent to portable terminal (S626).Here, HA sets up the tunnel with couple in router based on being included in nCoA in the binding update messages, and will be to its grouping that provides with tunnel transmission/be routed to portable terminal.
Thereby portable terminal receives the packet (S628) that provides through HA.
As stated; The present invention can provide a kind of method and system that moves IP that is used between heterogeneous networks switching fast, wherein through the optimization between link layer (L2) and the network layer (L3) can effectively carry out the TD-SCDMA network and and TD-SCDMA network various network between switching.
Further, the present invention can provide a kind of being used between heterogeneous networks, to switch the method and system that moves IP fast, wherein can minimize switching time and packet loss through minimizing redundant message on every layer of basis.
Further, the present invention can provide a kind of method and system that is used between heterogeneous networks, switching fast IP, wherein through using L2 message and L3 message to come the switching between the Optimization Layer, can provide seamless to the user based on mobile IP service and move.
As stated, switch, therefore be used between heterogeneous networks, switching fast the method and system that moves IP and be suitable for and to the user seamless mobile technology be provided based on mobile IP service owing between heterogeneous networks, carry out effectively.
Those skilled in the art can realize the present invention with other concrete form, and do not change technical spirit of the present invention and essential feature.Will be understood that from all aspects it is illustrative and limited that above-mentioned execution mode should be interpreted as.Scope of the present invention is defined by the following claims rather than is limited detailed description.Therefore, will be understood that the present invention should be interpreted as has contained all modifications and the modification of from accompanying claims and equivalent thereof, amplifying out.

Claims (24)

1. one kind is used for carrying out from first mobile communications network to second mobile communications network Mobile Internet Protocol IP fast switching method the heterogeneous networks; Wherein said first mobile communications network comprises couple in router; Said second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is controlled said base station; And service universal packet wireless business affair GPRS Support Node SGSN and gateway support node GGSN, they are connected to said radio network controller and to said portable terminal service are provided, and this method may further comprise the steps:
(a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information; Said portable terminal will comprise that the session of the information of network to be accessed sets up request message, promptly activates packet data protocol PDP Context request message and send to said SGSN, and will comprise that previous Care-of Address pCoA and the quick Binding Update FBU message of new Care-of Address nCoA send to said couple in router;
(b) when receive from said portable terminal said session set up request message, when being PDP context activating request message; Said SGSN sets up the session with said portable terminal; And the establishment PDP Context request message that will comprise the link local address LLA of said portable terminal sends to said GGSN, to set up with the session of said GGSN, promptly to create PDP Context; And
(c) when receiving said FBU message from said portable terminal, said couple in router is set up the tunnel with said GGSN based on being included in the said nCoA in the said FBU message, and the data that will point to said pCoA are with tunnel transmission and be routed to said GGSN.
2. method according to claim 1, wherein while execution in step (b) and step (c).
3. method according to claim 1; This method further may further comprise the steps: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
4. method according to claim 1, this method further may further comprise the steps: said portable terminal receives said data with tunnel transmission via said GGSN from said couple in router.
5. method according to claim 1, wherein step (b) may further comprise the steps:
When receiving said session when setting up request message, said SGSN sends to said radio network controller with radio bearer RAB allocation request message;
When receiving said RAB allocation request message, said radio network controller is set up the Radio Link with said base station, and RAB is set up message sends to said portable terminal;
When receiving quick binding acknowledgement FBAck message from said couple in router; Said portable terminal is set up the Radio Link that message is established to said radio network controller according to said RAB, and the RAB that will comprise itself LLA sets up and accomplishes message and send to said radio network controller;
Set up when accomplishing message when receiving said RAB, said radio network controller will comprise that the RAB of said LLA distributes acknowledge message to send to said SGSN; And
Said SGSN will comprise that the said establishment PDP Context request message of said LLA sends to said GGSN, setting up the session with said GGSN, and session set up accomplish message and send to said portable terminal.
6. method according to claim 5; Wherein said SGSN is included in said RAB through inspection and distributes said LLA in the acknowledge message to identify said portable terminal to have inserted said second mobile communications network, and via said couple in router said data with tunnel transmission is sent to said portable terminal.
7. method according to claim 1, wherein in step (a), said portable terminal is created the new IP address nCoA that will after switching, use based on the said L3 information that is included in the said measurement report message.
8. method according to claim 5, wherein said RAB sets up completion message and comprises quick neighbor advertisement FNA message.
9. method according to claim 1, wherein step (c) may further comprise the steps:
When receiving said FBU message from said portable terminal, will comprise that switching initial message at least a among the said LLA of said portable terminal, said pCoA and the said nCoA sends to said GGSN;
Said GGSN carries out duplicate address detection to the said nCoA that is included in the said switching initial message, and when said nCoA is unique address, will send to said couple in router to the response message of said switching initial message;
Said couple in router is set up the said tunnel with said GGSN based on said nCoA, in response to said FBU message FBAck message is sent to said portable terminal subsequently; And
The data that said couple in router will point to said pCoA arrive said GGSN with tunnel transmission.
10. method according to claim 1, wherein said portable terminal comprise multi-protocol stack and the many antennas that is used between heterogeneous networks, switching.
11. being WCDMAs, method according to claim 1, wherein said first mobile communications network insert a kind of among (WCDMA), time-division synchronization CDMA (TD-SCDMA), micro-wave access to global intercommunication (WiMAX) and the CDMA.
12. method according to claim 1, wherein, said second mobile communications network is TD-SCDMA.
13. one kind is used for carrying out from first mobile communications network to second mobile communications network mobile IP fast switching method the heterogeneous networks; Wherein said first mobile communications network comprises couple in router; Said second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is used for said base station is controlled; And SGSN and GGSN, they are connected to said radio network controller and to said portable terminal service are provided, and this method may further comprise the steps:
(a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information, said portable terminal will comprise that the session of the information of network to be accessed sets up request message, is that PDP context activating request message sends to said SGSN;
(b) when receiving said session from said portable terminal when setting up request message, said SGSN sends to said radio network controller with the RAB allocation request message;
(c) said radio network controller is set up the Radio Link with said portable terminal based on said RAB allocation request message; And when receiving the RAB foundation completion message that comprises nCoA from said portable terminal, will comprise that the RAB of said nCoA distributes acknowledge message to send to said SGSN;
(d) said SGSN will comprise that the establishment PDP Context request message of said nCoA sends to said GGSN;
(e) said GGSN will comprise that the FBU message of said nCoA sends to said couple in router;
(f) said couple in router is based on the said nCoA of said FBU message and create the tunnel with said GGSN, and FBAck message is sent to said GGSN; And
(g) when when said couple in router receives FBAck message; Said GGSN sets up the session with said SGSN; Tunnel through said establishment sends one and creates the PDP Context acknowledge message, and will send to said portable terminal with the data of tunnel transmission from said couple in router.
14. method according to claim 13; This method further may further comprise the steps: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
15. method according to claim 13, wherein step (c) may further comprise the steps:
When receiving said RAB allocation request message, said radio network controller reconfigures the ready message of RLR with Radio Link and sends to said base station;
Said base station in response sends to said radio network controller in the ready information of said RLR with the RLR preliminary message;
Said radio network controller is carried out message with RLR and is sent to said base station and RAB is set up message and send to said portable terminal;
When setting up message according to said RAB and be established to the said Radio Link of said radio network controller, said portable terminal will comprise that the said RAB of itself nCoA sets up to be accomplished message and sends to said radio network controller; And
Said radio network controller will comprise that the said RAB of said nCoA distributes acknowledge message to send to said SGSN.
16. method according to claim 13, wherein said couple in router through and said GGSN between the tunnel set up and the data forwarding that will point to pCoA to said nCoA.
17. mobile IP fast switching method of carrying out from first mobile communications network to second mobile communications network the heterogeneous networks; Wherein said first mobile communications network comprises couple in router; Said second mobile communications network comprises: the base station, and it is used for carrying out radio communication with portable terminal; Radio network controller, it is used for said base station is controlled; SGSN and GGSN, they are connected to said radio network controller and to said portable terminal service are provided, and home agent HA, and this method may further comprise the steps:
(a) when said portable terminal is accepted service via said first mobile communications network when said radio network controller receives the measurement report message that comprises L2 information and L3 information, said portable terminal will comprise that the session of the information of network to be accessed sets up request message, is that PDP context activating request message sends to said SGSN;
(b) said SGSN sets up request message according to said session and sets up the RAB with said portable terminal, sets up the session with said GGSN, and session is set up accomplish message and send to said portable terminal; And
(c) set up when accomplishing message when receive said session from said SGSN, said portable terminal will comprise that the binding update messages of itself nCoA sends to said HA, and when when said HA receives ACK message, reception is by the data of said HA route.
18. method according to claim 17, wherein step (b) may further comprise the steps:
When receive from said portable terminal said session set up request message, when being PDP context activating request message, said SGSN sends to said radio network controller with the RAB allocation request message;
Said radio network controller is set up the Radio Link with said base station according to said RAB allocation request message, and RAB is set up message sends to said portable terminal;
Said portable terminal is set up the RAB that message is established to said radio network controller according to said RAB, subsequently RAB is set up completion message and sends to said radio network controller;
Said radio network controller distributes acknowledge message to send to said SGSN RAB; And
The establishment PDP Context request message that said SGSN will be used to set up with the session of said GGSN sends to said GGSN, and when receiving when creating the PDP Context acknowledge message, said session is set up accomplish message and send to said portable terminal.
19. method according to claim 17; This method further may further comprise the steps: in step (a) before; Said radio network controller is created the said measurement report message that comprises said L3 information and said L2 information; And broadcast the measurement report message of said establishment, wherein said L3 information and said L2 information comprise IP address and network prefix.
20. a system that moves the IP switching from first mobile communications network to second mobile communications network, this system comprises:
Radio network controller, it is broadcasted the measurement report message that comprises L3 information and L2 information, and wherein said L3 information and said L2 information comprise IP address and network prefix;
Portable terminal, when when said radio network controller receives measurement report message, this portable terminal is created nCoA based on being included in the L3 information in the corresponding message, and request message is set up in session is sent to SGSN;
This SGSN, when receiving session from portable terminal when setting up request message, this SGSN sets up the session with said portable terminal through setting up with the Radio Link of said radio network controller and base station, and sets up to the GGSN queued session;
This GGSN, it is according to setting up from the said session request of setting up of said SGSN and the session of said SGSN, and will send to said portable terminal with the data of tunnel transmission from couple in router; And
This couple in router; Its execution is used for the gateway function that matees with Internet; When said portable terminal or said GGSN receive the FBU message that comprises said nCoA; Said couple in router is carried out the tunnel transmission with said GGSN, and the grouping that will offer said couple in router is with the said portable terminal of tunnel transmission/be routed to.
21. system according to claim 20; This system further comprises: HA; When said portable terminal receives the binding update messages that comprises nCoA; This HA himself is registering said nCoA, and will offer the said GGSN of forwarding a packet to of pCoA through carrying out with the tunnel transmission of said couple in router.
22. system according to claim 20, wherein when the session of setting up with said SGSN, said portable terminal uses RAB to set up to accomplish message the end message that comprises LLA is provided to said SGSN.
23. system according to claim 20, wherein said couple in router is arranged in said first mobile communications network.
24. system according to claim 20, wherein said radio network controller, said SGSN and said GGSN are arranged in said second mobile communications network.
CN2008101665562A 2008-02-12 2008-10-17 Mobile ip rapidly switching method and system between different networks Expired - Fee Related CN101511110B (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
KR10-2008-0012407 2008-02-12
KR1020080012407A KR100937321B1 (en) 2008-02-12 2008-02-12 Method for handover of mobile IP between different network
KR1020080012407 2008-02-12
KR10-2008-0015145 2008-02-20
KR1020080015145 2008-02-20
KR1020080015145A KR100955999B1 (en) 2008-02-20 2008-02-20 Method for handover of mobile IP between different network
KR1020080015589 2008-02-21
KR1020080015589A KR100920302B1 (en) 2008-02-21 2008-02-21 Method for handover of mobile IP between different network and thereof system
KR10-2008-0015589 2008-02-21

Publications (2)

Publication Number Publication Date
CN101511110A CN101511110A (en) 2009-08-19
CN101511110B true CN101511110B (en) 2012-04-11

Family

ID=41003335

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101665562A Expired - Fee Related CN101511110B (en) 2008-02-12 2008-10-17 Mobile ip rapidly switching method and system between different networks

Country Status (2)

Country Link
KR (1) KR100937321B1 (en)
CN (1) CN101511110B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114745358A (en) * 2022-03-23 2022-07-12 网宿科技股份有限公司 IP address management method, system and controller in load balancing service
US11882091B1 (en) 2022-11-10 2024-01-23 T-Mobile Usa, Inc. Allocation of internet protocol addresses based on a location of a visited network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6980801B1 (en) * 1999-06-07 2005-12-27 Nokia Corporation Selection mobility agent in access network
CN101111067A (en) * 2006-07-21 2008-01-23 华为技术有限公司 Mobile terminal and communication method for gateway access

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100587420B1 (en) 2004-12-15 2006-06-08 한국전자통신연구원 Managing method of handover
KR100700887B1 (en) * 2005-06-08 2007-03-29 (주) 엘지텔레콤 Method for Vertical Handoff between WLAN and CDMA Based on Mobile Internet Protocol
KR100744374B1 (en) * 2005-07-15 2007-07-30 삼성전자주식회사 Handover method between core network entities in packet-switched based network and therefor apparatus
KR100810207B1 (en) * 2005-07-22 2008-03-06 삼성전자주식회사 Handover method between core network entities in packet-switched based network and therefor apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6980801B1 (en) * 1999-06-07 2005-12-27 Nokia Corporation Selection mobility agent in access network
CN101111067A (en) * 2006-07-21 2008-01-23 华为技术有限公司 Mobile terminal and communication method for gateway access

Also Published As

Publication number Publication date
CN101511110A (en) 2009-08-19
KR20090087143A (en) 2009-08-17
KR100937321B1 (en) 2010-01-18

Similar Documents

Publication Publication Date Title
RU2384020C2 (en) Apparatus and methods for improving handover characteristics of integrated radio access networks
CN101606415B (en) Method and apparatus for supporting handoff from GPRS/GERAN to LTE EUTRAN
EP2067372B1 (en) Multicast fast handover
CN201057653Y (en) Equipment for supporting routing area update
CN101946542B (en) Method and apparatus for inter-technology handoff of a multi-mode mobile station
JP4177370B2 (en) Method for providing a multicast service according to a source node handoff in a mobile internet protocol communication system
CN101237710B (en) Handoff method between heterogeneous networks and system thereof
EP1014751A2 (en) A wireless communication system in which a base station controller routes packet data between mobile units and a packet data network
KR101017458B1 (en) Mobile communication system and communication control method
KR20040056980A (en) Method of handover in next generation mobile telecommunication system
TW200931992A (en) Wireless communication methods and components that implement handoff in wireless local area networks
KR100298371B1 (en) Method for operating handover in packet mobile communication network
US20140348134A1 (en) System and protocols for inter-mobility access gateway tunneling for fast handoff transition
CN101005444B (en) Method and device for quick switching
CN101600238A (en) Seek the method for target core network network node
JP2005311702A (en) Handover method
CN101511110B (en) Mobile ip rapidly switching method and system between different networks
KR100955999B1 (en) Method for handover of mobile IP between different network
KR100920302B1 (en) Method for handover of mobile IP between different network and thereof system
KR20070080991A (en) Method for establishing data tunnel between ran and user plane gateway in wireless telecommunications system and therefor system
EP2166798A1 (en) Handover between non 3GPP and 3GPP network
KR20050048188A (en) Hand over method from asynchronous mobile communication network to synchronous mobile communication network
KR20090050396A (en) Multicast hand over method in communication system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120411

Termination date: 20201017

CF01 Termination of patent right due to non-payment of annual fee