CN101142830A - Method and system for interworking of cellular networks and wireless local area networks - Google Patents
Method and system for interworking of cellular networks and wireless local area networks Download PDFInfo
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- CN101142830A CN101142830A CNA2005800424012A CN200580042401A CN101142830A CN 101142830 A CN101142830 A CN 101142830A CN A2005800424012 A CNA2005800424012 A CN A2005800424012A CN 200580042401 A CN200580042401 A CN 200580042401A CN 101142830 A CN101142830 A CN 101142830A
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Abstract
A method and system for interworking between cellular networks and wireless local area networks (WLANs) are disclosed. At least one cellular network, at least one WLAN and an IP network are deployed. A wireless transmit/receive unit (WTRU) first establishes a connection to a WLAN and a tunnel between an access point (AP) and a packet data gateway (PDG) is established. The PDG further establishes a tunnel to an IP network. The WTRU then invokes a service which is delivered through the WLAN. As signal quality from the AP degrades below a predetermined threshold, a handover from the WLAN to the cellular network is performed. A new connection to the cellular network may be established either before or after breaking the current connection to the WLAN or the two connections may be maintained simultaneously.
Description
Technical field
The relevant wireless telecommunication system of the present invention.Particularly, interconnection (interworking) method and system between relevant cellular network of the present invention and radio area network (WLAN).
Background technology
At present, the dissimilar wireless communication networks of pastern administration on the market, such as: radio area network and cellular network.Multiplex mode wireless transmission/receive unit (WTRU) is the wireless telecommunications of supporting single or plural wireless communication networks.When the user of multiplex mode wireless transmission/receive unit roved heterogeneous networks, the user of multiplex mode wireless transmission/receive unit need implement a certain network to the handover (handover) of another network, the also service of continuation reception simultaneously.For instance, the wireless user may rove between radio area network and the third generation (3G) network, and keep the continuity that provides to wireless user's wireless traffic simultaneously.In view of this, for reaching above-mentioned and other purpose, the present invention need provide a kind of wireless transmission/receive unit and internetwork coordination approach, and whereby, when wireless user system roved between the different networks, service continuity can be kept simultaneously.
Summary of the invention
Interconnecting method and system between relevant cellular network of the present invention and radio area network.At least one cellular network, at least one radio area network, and an Internet Protocol (IP) network disposed.Radio area network comprises access point (AP).Cellular network comprises B node and radio network controller (RNC), and core network comprises packet data gateway (PDG), service universal packet wireless business affair (GPRS) support node (SGSN), reaches ggsn (GGSN).
At first, wireless transmission/receive unit set up with radio area network between be connected, and the passage between access point and packet data gateway (tunnel) is established.Packet data gateway is further set up the passage with the Internet Protocol network.Subsequently, wireless transmission/receive unit triggers the service of transmitting via radio area network.
When the signal quality from access point is degraded to predetermined critical when following, be implemented by the handover of radio area network to cellular network.Be connected with new between cellular network can build on interrupt being connected former with radio area network present or after, perhaps, two connections can continue to keep simultaneously.
Description of drawings
Further detail knowledge of the present invention can be obtained via the detailed description of preferred embodiment, and in addition, the detailed description of preferred embodiment only provides as example, and the detailed description of preferred embodiment should conjunction with figs. be understood, wherein:
Fig. 1 is the calcspar of expression universal mobile telecommunications system-radio area network (UMTS-WLAN) framework;
Fig. 2 is expression inserts the program of third generation network service via radio area network a signaling diagram;
Fig. 3 is the signaling diagram of expression interconnecting program of first preferred embodiment according to the present invention;
Fig. 4 is the signaling diagram of expression alternative process of the first alternative preferred embodiment according to the present invention;
Fig. 5 is the signaling diagram of expression interconnecting program of second preferred embodiment according to the present invention;
Fig. 6 is the signaling diagram of expression alternative process of the second alternative preferred embodiment according to the present invention; And
Fig. 7 is the signaling diagram of expression interconnecting program of the 3rd preferred embodiment according to the present invention.
Embodiment
The present invention is described in detail below with reference to the accompanying drawings, and in the detailed description of preferred embodiment, same numeral is the expression same unit.
In the detailed description of preferred embodiment, term " wireless transmission/receive unit " is including, but not limited to subscriber equipment (UE), mobile workstation, fixing or moving user unit, beeper, can operates in any other types of devices of wireless environment.In addition, in the detailed description of preferred embodiment, term " B node " and " access point " are any other style interface devices including, but not limited to base station (BS), positioner or wireless environment.
The invention provides the whole bag of tricks, so as to keeping no seam (seamless) handover between service continuity and radio area network and cellular network, it comprises the following steps, that is: set up the internuncial step of cellular network; Implement the step of handover; And the internuncial step between interruption user and radio area network.It should be noted, cellular network can be the cellular network of any kind, it is including, but not limited to universal mobile telecommunications system (UMTS), CDMA 2000 (CDMA2000), and global system for mobile communications (GSM), and, radio area network can be the radio area network of any kind, and it is including, but not limited to IEEE 802.XX network.
Fig. 1 is the calcspar of expression universal mobile telecommunications system-radio area network (UMTS-WLAN) interference networks 100.Radio area network 130A and 130B (radio area network focus for instance) are deployed in the area coverage of universal mobile telecommunications system 110.Each radio area network 130A and 130B have at least one access point 132A and 132B to carry out wireless access.Access point 132A and 132B are connected to couple in router (AR) 134 to insert external network, such as: Internet Protocol network 140 is (for instance, world-wide web) or mobile core network 120, and then via the radio area network focus obtain the service of third generation network.
Please refer to Fig. 1 and Fig. 2, it is to be used for explaining the program 200 that inserts the service of third generation network via radio area network.Wireless transmission/receive unit 102 is the service area that is positioned at radio area network focus 130A at present.Wireless transmission/receive unit 102 is obtained the system information of radio area network focus 130A via active or drive sweep program (step 202).In the active scan program, wireless transmission/receive unit 102 transmission are detected (probe) and are required to access point 132A, and access point 132A transmits probe response and detects requirement (step 202A and step 202B) with response.Wireless transmission/receive unit 102 can receive beacon (beacon) via more than single access point.In this case, generally speaking, wireless transmission/receive unit 102 is to select to have the access point of strong signal.In the drive sweep program, wireless transmission/receive unit 102 is beacons (step 202C) of listening to via access point 132A cyclical transmission.
After the system information that obtains radio area network focus 130A, WLAN association program and proving program are implemented.Wireless transmission/receive unit 102 transmits connection and requires signal to the access point 132A (step 204) that selects, and access point 132A connection response signal is to wireless transmission/receive unit 102 (step 206).So far, connection is established, and the radio area network proving program is implemented (step 208).
Subsequently, wireless transmission/receive unit 102 is deposited the network of universal mobile communication system (step 210) that receives the network of universal mobile communication system service via radio area network 130A, and then starts subscription and service verification program.The network insertion identification number (ID) that radio area network 130A resolution wireless transmission/receive unit 102 provides (NAI).Couple in router 134 utilizes network insertion identification number (ID) (NAI), authorizes the accounting message to route to the relevant checking mandate accounting server 124 of universal mobile telecommunications system core network 120 so as to verifying.Couple in router 134 triggering extensible checking communications protocol (EAP) ,-the golden key agreement of checking (AKA) is verified and accounting server 124 is authorized in relaying message to universal mobile telecommunications system checking.Whenever wireless transmission/receive unit 102 is received when being proved to be successful message, wireless transmission/receive unit 102 utilizes DynamicHost framework communications protocol (DHCP) to receive Internet protocol addresses, and start with the passage of packet data gateway 129 via radio area network IAD (WAG) 121 subsequently and set up.Wireless transmission/receive unit 102 is set up complete qualification domain name (FQDN) and the domain name service-seeking (step 212) of the packet data gateway 129 implemented via domain name service (DNS) server 142.Wireless transmission/receive unit 102 is selected packet data gateway, and is set up the point-to-point passage (step 214) of selecting 102 of packet data gateway 129 and wireless transmission/receive units via the reception tabular of domain name service-seeking response.
Fig. 3 is the signaling diagram of the interconnecting program 300 of expression first preferred embodiment according to the present invention.First preferred embodiment according to the present invention, be connected with network of universal mobile communication system new be build on and radio area network focus present be connected interrupt before (that is to say " connecting (make before break) before interrupting ").When utilizing step 214 shown in Figure 2 to set up passage, wireless transmission/receive unit 102 certain application-specific of indication, such as: Internet Protocol voice (VoIP) service, and channel response is set up in this application-specific.The foundation of passage is to utilize wireless transmission/receive unit 102 to transmit to require to access point 132A (step 302A) and utilize access point 132A to forward the request to packet data gateway 129 (step 302B).After the passage of 129 of wireless transmission/receive unit 102 and packet data gateway was set up, wireless transmission/receive unit 102 was the special services (step 302) that triggers indication.
After certain application-specific of indication, two kinds of options exist.One requires system to be sent to packet data gateway 129 with the agent call State Control function (P-CSCF) or Session Initiation Protocol (SIP) agency that are connected and are provided with wireless transmission/receive unit 102 of foundation with Internet Protocol IP multimedia subsystem, IMS (IMS) 150.They are two years old, requirement is to be sent to packet data gateway 129 to set up passage and to wait for that wireless transmission/receive unit 102 requires and being connected of Internet Protocol IP multimedia subsystem, IMS 150, and, after connection request, the setting of Session Initiation Protocol agency or agent call State Control function is implemented.First kind of option is comparatively favourable, sets up the extra relaying of calling out because first kind of option can be saved.Yet second kind of selection also may be implemented on particular case.Step 304 that packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMS are 150 indication individual steps to be setting up the connectivity of 150 of packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMSs, such as: Session Initiation Protocol registration, the setting of agent call State Control function and the setting of service call State Control function (S-CSCF).CSCF (CSCF) is the Session Initiation Protocol server of particular type, and it is the Session Initiation Protocol signaling grouping that is used for handling the Internet Protocol multi-media subsystem network.Agent call State Control function is the Session Initiation Protocol agency who at first contacts wireless transmission/receive unit.Service call State Control function is the Centroid of signaling plane.
When wireless transmission/receive unit 102 moved away from present radio area network focus 130A, as shown in Figure 1, radio area network focus 130A was activated to the handover of network of universal mobile communication system 110 at present.First preferred embodiment according to the present invention before existing connection of interrupting with present radio area network focus 130A, and is established new connection of network of universal mobile communication system 110.
Please once again with reference to figure 3, wireless transmission/receive unit 102 utilizes subsequent step 306 to step 310, so as to setting up and being connected of ggsn 128, shown in arrow 305.At first, wireless transmission/receive unit 102 foundation are carried passage (RAB) (step 306) and are triggered third generation network (3GPP) system attachment (step 308) with the wireless access of B node 112.Subsequently, wireless transmission/receive unit 102 is set up grouped data communications protocol (PDP) train of thought to trigger third generation network Internet Protocol connectivity (step 310).When wireless transmission/receive unit 102 was set up grouped data communications protocol train of thought, wireless transmission/receive unit 102 was selected access point, and APN (APN) is determined.APN is to be used for the domain name service-seeking.At last, this program produces the Internet protocol addresses of ggsn 128, so as to providing to access point.Subsequently, wireless transmission/receive unit 102 triggers third generation network Internet Protocol IP multimedia subsystem, IMS connectivity via the Session Initiation Protocol registration of step 312, at this moment, the connectivity that ggsn 128 and Internet Protocol IP multimedia subsystem, IMS are 150 also is established, shown in arrow 312A.
When the connectivity with network of universal mobile communication system 110 is established, be activated with internuncial interrupt routine of present radio area network focus 130A.Wireless transmission/receive unit 102 sends a handover request to access point 132A (step 314).Handover request is identification Path end point, user identification number (ID), Radio Resource, frequency channels, priority or suchlike information.Subsequently, the access point 132A transmission third generation (3GPP) network of Central Monitoring Room requires to packet data gateway 129 (step 316).For the third generation (3GPP) network of Central Monitoring Room required, two kinds of options existed.After interrupting with the connectivity of radio area network 130A, packet data gateway 129 can remove via call path, and perhaps, after interrupting with the connectivity of radio area network 130A, packet data gateway 129 can continue to be maintained at call path.Fig. 3 introduces first kind of option, and Fig. 4 introduces second kind of selection, and it will further describe as follows.
In the present invention shown in Figure 3 first preferred embodiment, after interrupting with the connectivity of radio area network 130A, packet data gateway 129 can remove via call path.Packet data gateway 129 forwards the request to ggsn 128, and ggsn 128 forwards the request to Internet Protocol IP multimedia subsystem, IMS 150 (step 318 and step 320).The passage that packet data gateway 129 and ggsn are 128 only continue in internuncial duration of existence of radio area network 130A, and, the new connection that ggsn 128 and Internet Protocol IP multimedia subsystem, IMS are 150 is established, and communication traffic directly transfers to the ggsn 128 that wireless transmission/receive unit 102 connects at present via Internet Protocol IP multimedia subsystem, IMS 150.
Internet Protocol IP multimedia subsystem, IMS 150 sends a relocation response to ggsn 128, and ggsn 128 is passed on to reset and is responded to packet data gateway 129 (step 322 and step 324).Subsequently, access point 132A discharges resource (step 328) at the complete signal of transmission handover to wireless transmission/receive unit 102.Ggsn 128 also transmits handover complete message (that is to say HO complete), so as to obtain the resource setting (step 330 and step 332) of B node 112 via service universal grouping wireless business supporting node 122.Subsequently, B node 112 transmits the handover complete message to wireless transmission/receive unit 102 (step 334).Subsequently, service from Internet Protocol IP multimedia subsystem, IMS 150 is to provide via network of universal mobile communication system 110 (to that is to say, from Internet Protocol IP multimedia subsystem, IMS 150, via ggsn 128, service universal grouping wireless business supporting node 122, B node 112, and arrive wireless transmission/receive unit 102, shown in arrow 336A to 336C) (step 336 and step 338).
Fig. 4 is the signaling diagram of the alternative process 400 of expression the present invention first preferred embodiment.Alternative process 400 is to be similar to interconnecting program shown in Figure 3 300, removes after interrupting with the connectivity of radio area network 130A, and packet data gateway 129 is to be maintained at beyond the call path.After handover, packet data gateway 129 will be positioned at the central authorities of call path.The enforcement of handover is that the signaling paths with agent call State Control function switches to ggsn 128 via packet data gateway 129.Network traffics are to point to ggsn 128 via packet data gateway 129.
Fig. 5 is the signaling diagram of the interconnecting program 500 of expression second preferred embodiment according to the present invention.Second preferred embodiment according to the present invention, wireless transmission/receive unit 102 can be kept multiple session (session) simultaneously, and, after handover is finished, do not need to interrupt with the existing connectivity of radio area network 130A.Two connections are kept simultaneously, and, this application-specific be via certain network transitions to other plant network (that is to say " simultaneously ").
After the passage of 129 of wireless transmission/receive unit 102 and packet data gateway was set up, wireless transmission/receive unit 102 triggered service (such as Internet Protocol voice (VoIP) call service) (step 502).Wireless transmission/receive unit 102 transmits and requires to access point 132A (step 502A), and access point 132A forwards the request to packet data gateway 129 (step 502B).The step 504 indication individual steps that packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMS are 150, so as to setting up the connection of 150 of packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMSs, such as: Session Initiation Protocol registration, the setting of agent call State Control function and the setting of service call State Control function.
Wireless transmission/receive unit 102 is set up with the extra of network of universal mobile communication system 110 simultaneously and is connected.Wireless transmission/receive unit 102 utilizes subsequent step 506 to step 510, so as to setting up and being connected of ggsn 128, shown in arrow 505.At first, wireless transmission/receive unit 102 foundation are carried passage (RAB) (step 506) and are triggered third generation network system annex (step 508) with the wireless access of B node 112.Subsequently, wireless transmission/receive unit 102 is set up grouped data communications protocol train of thought to trigger third generation network Internet Protocol connectivity (step 510).When wireless transmission/receive unit 102 was set up grouped data communications protocol train of thought, wireless transmission/receive unit 102 was selected access point, and APN is determined.APN is to be used for the domain name service-seeking.At last, this program produces the Internet protocol addresses of ggsn 128, so as to providing to access point.Subsequently, wireless transmission/receive unit 102 triggers third generation network Internet Protocol IP multimedia subsystem, IMS connectivity via the Session Initiation Protocol registration of step 512, at this moment, the connectivity that ggsn 128 and Internet Protocol IP multimedia subsystem, IMS are 150 is also set up, shown in arrow 512A.
When wireless transmission/receive unit 102 moves away from present radio area network focus 130A, as shown in Figure 1, this application-specific is to be transferred to network of universal mobile communication system 110 via present radio area network focus 130A, and does not need to interrupt existing connection the with radio area network focus 130A.Wireless transmission/receive unit 102 sends a handover request to access point 132A (step 514).Handover request is identification Path end point, user identification number (ID), Radio Resource, frequency channels, priority or suchlike information.Subsequently, the access point 132A transmission third generation (3GPP) network of Central Monitoring Room requires to packet data gateway 129 (step 516).As described in the present invention's first preferred embodiment and substituting, switch to being connected of network of universal mobile communication system after, packet data gateway 129 can remove via call path, perhaps, switch to being connected of network of universal mobile communication system after, packet data gateway 129 can continue to be maintained at call path.Fig. 5 introduces first kind of option, and Fig. 6 introduces second kind of selection, and it will further describe as follows.
Internet Protocol IP multimedia subsystem, IMS 150 sends a relocation response to ggsn 128, and ggsn 128 is passed on to reset and is responded to packet data gateway 129 (step 522 and step 524).Access point 132A is sending a relocation response to access point 132A (step 526).Subsequently, access point 132A discharges resource (step 528) at the complete signal of transmission handover to wireless transmission/receive unit 102.Ggsn 128 also transmits the handover complete message, so as to obtain the resource setting (step 530 and step 532) of B node 112 via service universal grouping wireless business supporting node 122.Subsequently, B node 112 is to transmit the handover complete message to wireless transmission/receive unit 102 (step 534).Subsequently, provide via network of universal mobile communication system 110 from the service of Internet Protocol IP multimedia subsystem, IMS 150 and (that is to say, from Internet Protocol IP multimedia subsystem, IMS 150, via ggsn 128, service universal grouping wireless business supporting node 122, B node 112, and arrive wireless transmission/receive unit 102, shown in arrow 536A to 536C) (step 536 and step 538).
Fig. 6 is the signaling diagram of the alternative process 600 of expression the present invention second preferred embodiment.Alternative process 600 is to be similar to interconnecting program shown in Figure 5 500, removes after switching with the connectivity of radio area network 130A, and packet data gateway 129 is maintained at beyond the call path.After handover, packet data gateway 129 will be positioned at the central authorities of call path.
Fig. 7 is the signaling diagram of the interconnecting program 700 of expression the 3rd preferred embodiment according to the present invention.The 3rd preferred embodiment according to the present invention is before the handover that is carried out up to network of universal mobile communication system 110, with existing connectivity system's interruption (that is to say " interrupting before connecting ") of radio area network 130A.After the passage of 129 of wireless transmission/receive unit 102 and packet data gateway was established, wireless transmission/receive unit 102 was the special services (step 702) that triggers indication.Desire triggers the special services of indication, and wireless transmission/receive unit 102 transmits and requires to access point 132A (step 702A), and access point 132A forwards the request to packet data gateway 129 (step 702B).The step 704 indication individual steps that packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMS are 150, so as to setting up the connection of 150 of packet data gateway 129 and Internet Protocol IP multimedia subsystem, IMSs, such as: Session Initiation Protocol registration, the setting of agent call State Control function and the setting of service call State Control function.
When wireless transmission/receive unit 102 moved away from present radio area network focus 130A, as shown in Figure 1, the handover that is transferred to network of universal mobile communication system 110 via present radio area network focus 130A was implemented.The 3rd preferred embodiment according to the present invention after interrupting with the existing connectivity of present radio area network focus 130A (for instance, signal loss), and is established new connection of network of universal mobile communication system 110.
When from the signal loss of access point 132A (step 706), wireless transmission/receive unit 102 can start to the handover of network of universal mobile communication system 110, and perhaps, radio area network can start to the handover of network of universal mobile communication system 110.Because radio area network is to be connected to packet data gateway 129, radio area network can start to the handover of target network of universal mobile communication system 110.When detecting signal loss, access point 132A transmits signal (resetting requirement) to packet data gateway 129 (step 708).Subsequently, this session maintenance specific interval (step 710).
Subsequently, wireless transmission/receive unit 102 utilizes subsequent step 712 to step 716, so as to setting up and being connected of ggsn 128, shown in arrow 711.Wireless transmission/receive unit 102 is set up and the wireless access of B node 112 carries passage (RAB) (step 712) and triggers third generation network system annex (step 714).Subsequently, wireless transmission/receive unit 102 is set up grouped data communications protocol train of thought to trigger third generation network Internet Protocol connectivity (step 716).When wireless transmission/receive unit 102 was set up grouped data communications protocol train of thought, wireless transmission/receive unit 102 was selected access point, and APN is determined.APN is used to the domain name service-seeking.At last, this program produces the Internet protocol addresses of ggsn 128, so as to providing to access point.Subsequently, wireless transmission/receive unit 102 triggers third generation network Internet Protocol IP multimedia subsystem, IMS connectivity via the Session Initiation Protocol registration of step 718, at this moment, the connectivity that ggsn 128 and Internet Protocol IP multimedia subsystem, IMS are 150 is also set up, shown in arrow 718A.
Subsequently, the crooked session of handover (bending session) is activated (step 720).Wireless transmission/receive unit 102 transmits the relevent information of existing session to Internet Protocol IP multimedia subsystem, IMS 150 (that is to say Session Initiation Protocol server).The relevent information of existing session comprises session/service identification, original and termination Internet protocol addresses, utilize new contact information with network traffics point to again universal mobile communications (UMTS) network requirement (that is to say, at present Internet protocol addresses), and the like information.Subsequently, the new route of Internet Protocol IP multimedia subsystem, IMS 150 updating call/session.Internet Protocol IP multimedia subsystem, IMS 150 is set up the agent call State Control function and the service call State Control function of new session.
Subsequently, Internet Protocol IP multimedia subsystem, IMS 150 transmits handover request and notifies to packet data gateway 129, wherein, handover request notice has session relevent information and call/session has been pointed to again and previous retention data should discharge indication (step 722).Subsequently, packet data gateway 129 sends a relocation response to access point 132A (step 724) in the lump together with session relevent information and wireless transmission/receive unit identification number (ID).Subsequently, access point 132A discharges the resource that is provided with of wireless transmission/receive unit 102.This session is to reply between wireless transmission/receive unit 102 and Internet Protocol IP multimedia subsystem, IMS 150 (step 726A is to step 726D), and, it is from Internet Protocol IP multimedia subsystem, IMS 1 50 that the user triggers service, and provides (step 728) via ggsn 128, service universal grouping wireless business supporting node 122, B node 112.
Embodiment
1. one kind has at least one cellular network one, be used for the method that interconnects between this cellular network and this radio area network in the wireless telecommunication system of at least one radio area network (WLAN) and an Internet Protocol (IP) IP multimedia subsystem, IMS (IMS), whereby, user's service continues to provide via this cellular network after this handover, this method comprises that a wireless transmission/receive unit (WTRU) foundation is connected with one of a radio area network, and set up a passage between the packet data gateway (PDG) of this radio area network and this cellular network, again and then set up this packet data gateway and the internetwork passage of an Internet Protocol, to receive this user's service via this radio area network; This wireless transmission/receive unit foundation is connected with one of this cellular network and transmits a handover signaling via this radio area network, and then implements the handover of this radio area network to this cellular network.
2. as embodiment 1 described method, wherein, when this packet data gateway receives this handover request, this packet data gateway transmits one and resets requirement to a gateway general packet radio service (GPRS) support node (GGSN), whereby, this packet data gateway can remove from a call path after implementing this handover, and the call path between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit can be set up via this ggsn.
3. as embodiment 1 described method, wherein, when this packet data gateway receives this handover request, this packet data gateway transmits a passage and sets up requirement to a ggsn (GGSN), whereby, after implementing this handover, this packet data gateway can be maintained in the call path, and call path can be set up via this ggsn and this packet data gateway between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit.
4. as the described method of arbitrary embodiment among the embodiment 1～3, wherein, after the indication of this user's service, be based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS.
5. as the described method of arbitrary embodiment among the embodiment 1～3, wherein, after requiring, be based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS from one of this wireless transmission/receive unit.
6. as the described method of arbitrary embodiment among the embodiment 1～5, wherein, this handover request is the identification tunnel end points.
7. as the described method of arbitrary embodiment among the embodiment 1～6, wherein, this handover request is an identification user identification number (ID).
8. as the described method of arbitrary embodiment among the embodiment 1～7, wherein, this handover request is the identification Radio Resource.
9. as the described method of arbitrary embodiment among the embodiment 1～8, wherein, this handover request is the identification frequency channels.
10. as the described method of arbitrary embodiment among the embodiment 1～9, wherein, this handover request is the identification priority.
11. as the described method of arbitrary embodiment among the embodiment 1～10, wherein, setting up with after this of this cellular network is connected, this of interruption and this radio area network is connected.
12. as the described method of arbitrary embodiment among the embodiment 1～11, wherein, with this radio area network be connected and with being connected of this cellular network be to keep simultaneously.
13 1 kinds have at least one cellular network, at least one radio area network (WLAN), and in the wireless telecommunication system of an Internet Protocol IP multimedia subsystem, IMS (IMS), the method that interconnects between a kind of this cellular network and this radio area network, whereby, can continue to provide the user to serve via this cellular network, this method comprises that wireless transmission/receive unit foundation is connected with one of a radio area network, and set up a passage between the packet data gateway (PDG) of this radio area network and this cellular network, again and then set up this packet data gateway and the internetwork passage of an Internet Protocol, to receive this user's service via this radio area network; When being connected with this of this radio area network when interrupting, this wireless transmission/receive unit is set up and is connected with one of this cellular network; Start the crooked session of a handover (bending session) replying this session and to implement the handover of this radio area network to this cellular network.
14., wherein, started by this radio area network to this handover of this cellular network as embodiment 13 described methods.
15. as embodiment 13 described methods, wherein, to this handover of this cellular network be to start by a user.
16. one kind has at least one cellular network one, be used for the system that interconnects between this cellular network and this radio area network in the wireless telecommunication system of an at least one radio area network (WLAN) and an Internet Protocol IP multimedia subsystem, IMS (IMS), whereby, wireless transmission/receive unit continues to receive user's service via this cellular network after this handover, this cellular network comprises a Radio Access Network and a core network, and this core network comprises a packet data gateway (PDG), one service universal grouping wireless business supporting node (SGSN), an and ggsn (GGSN); This radio area network is based upon the passage between the packet data gateway of this radio area network and this cellular network, and this packet data gateway is further set up the passage between this packet data gateway and an Internet Protocol IP multimedia subsystem, IMS; And this wireless transmission/receive unit is to be configured to carry out communication with this radio area network and this cellular network, and transmits a handover signaling via this radio area network, and then implements the handover of this radio area network to this cellular network.
17. as embodiment 16 described systems, wherein, when this packet data gateway receives this handover signaling request, this packet data gateway transmits one and resets requirement to a ggsn, whereby, this packet data gateway removes from a call path after implementing this handover, and this call path is to set up via this ggsn between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit.
18. as embodiment 16 described systems, wherein, when this packet data gateway receives this handover request, this packet data gateway transmits a passage and sets up requirement to a ggsn, whereby, after implementing this handover, this packet data gateway is maintained in the call path, and this call path between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit can be set up via this ggsn and this packet data gateway.
19., wherein, after the indication of this user's service, be based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS as the described system of arbitrary embodiment among the embodiment 16～18.
20., wherein, after requiring, be based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS from one of this wireless transmission/receive unit as the described system of arbitrary embodiment among the embodiment 16～18.
21. as the described system of arbitrary embodiment among the embodiment 16～20, wherein, this handover request is the identification tunnel end points.
22. described as arbitrary embodiment among the embodiment 16～21 is system, wherein, this handover request is an identification user identification number (ID).
23. described as arbitrary embodiment among the embodiment 16～22 is system, wherein, this handover request is the identification Radio Resource.
24. described as arbitrary embodiment among the embodiment 16～23 is system, wherein, this handover request is the identification frequency channels.
25. described as arbitrary embodiment among the embodiment 16～24 is system, wherein, this handover request is the identification priority.
26. as the described system of arbitrary embodiment among the embodiment 16～25, wherein, be connected with this of this cellular network set up after, interrupt being connected with this of this radio area network.
27., wherein, keep simultaneously and be connected with this of this radio area network and be connected with this of this cellular network as the described system of arbitrary embodiment among the embodiment 16～26.
28. one kind has at least one cellular network one, be used for the system that between this cellular network and this radio area network, interconnects in the wireless telecommunication system of an at least one radio area network (WLAN) and an Internet Protocol IP multimedia subsystem, IMS (IMS), whereby, after handover, wireless transmission/receive unit continues to receive this user's service from this cellular network, this cellular network comprises a Radio Access Network and a core network, and this core network comprises a packet data gateway (PDG), one service universal grouping wireless business supporting node (SGSN) and a ggsn (GGSN); This radio area network is set up the passage between a packet data gateway of this radio area network and this cellular network, and this packet data gateway is further set up the passage between this packet data gateway and an Internet Protocol IP multimedia subsystem, IMS; And this wireless transmission/receive unit is to be configured to carry out communication with this radio area network and this cellular network, and be connected with this of this radio area network when interrupting, is connected with one of this cellular network and replys this session and then implement the handover of this radio area network via setting up to this cellular network via the bending session (bending session) of startup one handover.
29., wherein, started by this radio area network to this handover of this cellular network as embodiment 28 described systems.
30. as embodiment 28 described systems, wherein, to this handover of this cellular network be to start by a user.
Though various feature of the present invention and unit have utilized the particular combinations of preferred embodiment to describe in detail as above, yet, those who familiarize themselves with the technology should understand, under the prerequisite of spirit of the present invention and scope, the various features and the unit of preferred embodiment of the present invention can also utilize separately, and do not need other features and the unit of preferred embodiment of the present invention, perhaps, the various features and the unit of preferred embodiment of the present invention can also have various combination, and may not be certain to need or do not need other features or the unit of preferred embodiment of the present invention.
Claims (30)
1. one kind has one and to be used for the method that interconnects between this cellular network and this radio area network in the wireless telecommunication system of at least one cellular network, at least one radio area network (WLAN) and an Internet Protocol (IP) IP multimedia subsystem, IMS (IMS), the user service that is provided by this Internet Protocol IP multimedia subsystem, IMS is provided, this method comprises the following steps:
One WTRU sets up and is connected with one of a radio area network;
Set up the passage between the packet data gateway (PDG) of this radio area network and this cellular network, this packet data gateway is further set up this packet data gateway and the internetwork passage of an Internet Protocol;
This wireless transmission/receive unit triggers user service and receives this user's service via this radio area network;
This wireless transmission/receive unit is set up and is connected with one of this cellular network; And
Transmit a handover signaling via this radio area network, and then implement the handover of this radio area network to this cellular network, whereby, this user's service continues to provide via this cellular network after this handover.
2. method according to claim 1, it is characterized in that, when this packet data gateway receives this handover request, this packet data gateway transmits one and resets requirement to a gateway general packet radio service (GPRS) support node (GGSN), whereby, this packet data gateway can remove from a call path after implementing this handover, and the call path between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit can be set up via this ggsn.
3. method according to claim 1, it is characterized in that, when this packet data gateway receives this handover request, this packet data gateway transmits a passage and sets up requirement to a ggsn (GGSN), whereby, after implementing this handover, this packet data gateway can be maintained in the call path, and call path can be set up via this ggsn and this packet data gateway between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit.
4. method according to claim 1 is characterized in that, after the indication of this user's service, is based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS.
5. method according to claim 1 is characterized in that, after requiring from one of this wireless transmission/receive unit, is based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS.
6. method according to claim 1 is characterized in that, this handover request is the identification tunnel end points.
7. method according to claim 1 is characterized in that, this handover request is an identification user identification number (ID).
8. method according to claim 1 is characterized in that, this handover request is the identification Radio Resource.
9. method according to claim 1 is characterized in that, this handover request is the identification frequency channels.
10. method according to claim 1 is characterized in that, this handover request is the identification priority.
11. method according to claim 1 is characterized in that, is setting up with after this of this cellular network is connected, this of interruption and this radio area network is connected.
12. method according to claim 1 is characterized in that, with this radio area network be connected and with being connected of this cellular network be to keep simultaneously.
13. one kind has at least one cellular network, at least one radio area network (WLAN), is reaching in the wireless telecommunication system of an Internet Protocol IP multimedia subsystem, IMS (IMS), the method that interconnects between a kind of this cellular network and this radio area network, the user service that is provided by this Internet Protocol IP multimedia subsystem, IMS is provided, this method comprises the following steps:
One WTRU sets up and is connected with one of a radio area network;
Set up the passage between the packet data gateway (PDG) of this radio area network and this cellular network, this packet data gateway is further set up this packet data gateway and the internetwork passage of an Internet Protocol;
This wireless transmission/receive unit starts a session of user service and receives this user's service via this radio area network;
When being connected with this of this radio area network when interrupting, this wireless transmission/receive unit is set up and is connected with one of this cellular network;
Start the crooked session of a handover (bending session) to reply this session; And
Implement the handover of this radio area network, whereby, can continue to provide this user's service via this cellular network to this cellular network.
14. method according to claim 13 is characterized in that, is started by this radio area network to this handover of this cellular network.
15. method according to claim 13 is characterized in that, to this handover of this cellular network be to start by a user.
16. one kind has one and to be used for the system that interconnects between this cellular network and this radio area network in the wireless telecommunication system of at least one cellular network, at least one radio area network (WLAN) and an Internet Protocol IP multimedia subsystem, IMS (IMS), be applicable to the user service that this Internet Protocol IP multimedia subsystem, IMS provides, this kind system comprises:
One cellular network, this cellular network comprises a Radio Access Network and a core network, and this core network comprises a packet data gateway (PDG), a service universal grouping wireless business supporting node (SGSN), reaches a ggsn (GGSN);
One radio area network, when a user starts this user and serves, this radio area network is based upon the passage between the packet data gateway of this radio area network and this cellular network, and this packet data gateway is further set up the passage between this packet data gateway and an Internet Protocol IP multimedia subsystem, IMS; And
A pair of molality formula wireless transmission/receive unit, this double-mode wireless transmission/receive unit and this radio area network and this cellular network carry out communication, this wireless transmission/receive unit comprises a handover function, this handover function is to transmit a handover signaling via this radio area network, and then implement the handover of this radio area network to this cellular network, whereby, this wireless transmission/receive unit continues to receive this user's service via this cellular network after this handover.
17. system according to claim 16, it is characterized in that, when this packet data gateway receives this handover signaling request, this packet data gateway transmits one and resets requirement to a ggsn, whereby, this packet data gateway removes from a call path after implementing this handover, and this call path is to set up via this ggsn between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit.
18. system according to claim 16, it is characterized in that, when this packet data gateway receives this handover request, this packet data gateway transmits a passage and sets up requirement to a ggsn, whereby, after implementing this handover, this packet data gateway is maintained in the call path, and this call path between this Internet Protocol IP multimedia subsystem, IMS and this wireless transmission/receive unit can be set up via this ggsn and this packet data gateway.
19. system according to claim 16 is characterized in that, after the indication of this user's service, is based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS.
20. system according to claim 16 is characterized in that, after requiring from one of this wireless transmission/receive unit, is based upon this passage between this packet data gateway and this Internet Protocol IP multimedia subsystem, IMS.
21. system according to claim 16 is characterized in that, this handover request is the identification tunnel end points.
22. system according to claim 16 is characterized in that, this handover request is an identification user identification number (ID).
23. system according to claim 16 is characterized in that, this handover request is the identification Radio Resource.
24. system according to claim 16 is characterized in that, this handover request is the identification frequency channels.
25. system according to claim 16 is characterized in that, this handover request is the identification priority.
26. system according to claim 16 is characterized in that, be connected with this of this cellular network set up after, interrupt being connected with this of this radio area network.
27. system according to claim 16 is characterized in that, keeps simultaneously to be connected with this of this radio area network and to be connected with this of this cellular network.
28. one kind has one and be used for the system that interconnects in the wireless telecommunication system of at least one cellular network, at least one radio area network (WLAN) and an Internet Protocol IP multimedia subsystem, IMS (IMS) between this cellular network and this radio area network, the user service that is provided by this Internet Protocol IP multimedia subsystem, IMS is provided, this system comprises:
One cellular network, this cellular network comprises a Radio Access Network and a core network, and this core network comprises a packet data gateway (PDG), a service universal grouping wireless business supporting node (SGSN) and a ggsn (GGSN);
One radio area network, when a user starts this user and serves, this radio area network is set up the passage between a packet data gateway of this radio area network and this cellular network, and this packet data gateway is further set up the passage between this packet data gateway and an Internet Protocol IP multimedia subsystem, IMS; And
A pair of molality formula wireless transmission/receive unit, this double-mode wireless transmission/receive unit and this radio area network and this cellular network carry out communication, this wireless transmission/receive unit comprises a handover function, be connected with this of this radio area network when interrupting, this handover function is set up and is connected with one of this cellular network, and start the crooked session of a handover (bending session) to reply this session and then to implement the handover of this radio area network to this cellular network, whereby, after this handover, this wireless transmission/receive unit continues to receive this user's service from this cellular network.
29. system according to claim 28 is characterized in that, is started by this radio area network to this handover of this cellular network.
30. system according to claim 28 is characterized in that, to this handover of this cellular network be to start by a user.
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| US63467904P | 2004-12-09 | 2004-12-09 | |
| US60/634,679 | 2004-12-09 | ||
| US11/285,684 US8130718B2 (en) | 2004-12-09 | 2005-11-22 | Method and system for interworking of cellular networks and wireless local area networks |
| US11/285,684 | 2005-11-22 | ||
| PCT/US2005/044872 WO2006063330A2 (en) | 2004-12-09 | 2005-12-09 | Interworking of cellular networks and wireless lans |
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| CN201110100082.3A Division CN102209357B (en) | 2004-12-09 | 2005-12-09 | Method and system for interworking of cellular networks and wireless local area networks |
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| CN101142830A true CN101142830A (en) | 2008-03-12 |
| CN101142830B CN101142830B (en) | 2011-05-04 |
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| CN2005800424012A Expired - Fee Related CN101142830B (en) | 2004-12-09 | 2005-12-09 | Method and system for interworking of cellular networks and wireless local area networks |
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| CNU200520136644XU Expired - Lifetime CN200997618Y (en) | 2004-12-09 | 2005-12-09 | Honeycomb network, interdynamic apparatus and system in wireless LAn |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010015188A1 (en) * | 2008-08-04 | 2010-02-11 | 华为技术有限公司 | Method, device and system for accessing mobile core network of access points |
| JP2014180013A (en) * | 2006-09-28 | 2014-09-25 | Qualcomm Incorporated | Methods and apparatus for determining communication link quality |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6711147B1 (en) * | 1999-04-01 | 2004-03-23 | Nortel Networks Limited | Merged packet service and mobile internet protocol |
| US20030139180A1 (en) * | 2002-01-24 | 2003-07-24 | Mcintosh Chris P. | Private cellular network with a public network interface and a wireless local area network extension |
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2005
- 2005-12-09 CN CNU200520136644XU patent/CN200997618Y/en not_active Expired - Lifetime
- 2005-12-09 CN CN2005800424012A patent/CN101142830B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014180013A (en) * | 2006-09-28 | 2014-09-25 | Qualcomm Incorporated | Methods and apparatus for determining communication link quality |
| WO2010015188A1 (en) * | 2008-08-04 | 2010-02-11 | 华为技术有限公司 | Method, device and system for accessing mobile core network of access points |
| CN101645814B (en) * | 2008-08-04 | 2012-05-23 | 上海华为技术有限公司 | Method, equipment and system for enabling access points to access mobile core network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101142830B (en) | 2011-05-04 |
| CN200997618Y (en) | 2007-12-26 |
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