CN101448293B

CN101448293B - Method for switching of wireless communication network systems and system and equipment thereof

Info

Publication number: CN101448293B
Application number: CN200810129155XA
Authority: CN
Inventors: 黄龙贵; 刘继兴; 钟鑫; 赵洁; 李志明
Original assignee: Huawei Technologies Co Ltd
Current assignee: Suzhou Shiwan Yinghe Precision Machinery Co Ltd
Priority date: 2007-11-26
Filing date: 2008-06-30
Publication date: 2011-02-02
Anticipated expiration: 2028-06-30
Also published as: CN101448293A

Abstract

The invention discloses a method for switching of wireless communication network systems, a system and equipment thereof, belonging to the field of communication. The method comprises that a simplified access network/packet control functional unit (AN/PCF) in target access network receives switching request message from a terminal, searches the target AN according to the message and sends conversation transfer request message to the searched target AN; the simplified AN/PCF receives conversation transfer response message from the target AN and instructs the terminal to be accessed in the target AN. The system of the invention comprises the simplified access network/packet control functional unit (AN/PCF) and the target AN. The simplified AN/PCF comprises a receiving module and a processing module. In the invention, when UMB network is determined to be switched to HRPD network, the simplified AN/PCF is used for switching to the real target AN directly on the premise that AT pre-establishes HRPD and PPP conversation successfully, thus shortening the whole switching time delay, guaranteeing the business continuity of the users, cutting down the user interrupt, and bringing better experience to the users.

Description

The method of switching between a kind of wireless communication network system, system and equipment

Technical field

The present invention relates to the communications field, the method, system and the equipment that switch between particularly a kind of wireless communication network system.

Background technology

At present, the 3G (Third Generation) Moblie technology is ripe gradually, the user can obtain the miscellaneous service service on the network of different technologies support, for example, the user is by VoIP (Voice over Internet Protocol, the networking telephone) on UMB (Ultra Mobile Broadband, ultra broadband moves) network, obtains services such as voice, data; On HRPD (High Rate Packet Data, the HRPD (high rate packet data)) network in CDMA (Code-Division Multiple Access, code division multiple access) the technical standard series, obtain services such as voice, data or the like by VoIP.

Referring to Fig. 1, be UMB network architecture schematic diagram.Wherein HA (home agent, Home Agent) bears management role and is that AT (Access Terminal accesses terminal) is as MA (Mobile Station, travelling carriage) or UE (User Equipment, user terminal) distributing IP address; AGW (Access Gateway, IAD) safeguards the current DAP of AT (Data Attachment Point, data attachment point) information, and when receiving the forward data that mails to AT, AGW is forwarded to DAP with forward data; Service eBS (Serving evolved Base Station serves evolution base station) comprises forward direction service eBS and reverse service eBS, and forward direction is served eBS and oppositely served eBS can be same eBS, also may be different eBS; DAP is the data attachment point of AT, after DAP receives the data of AT from outside IP network, will by and the data tunnel of service between the eBS send to the current service eBS of AT, wherein DAP can be same entity with service eBS; SRNC (Session Reference Network Controller, session reference network controller) is used to safeguard the session status of AT, is the centralized control point of session, finishes the paging controlled function.Signaling between SRNC and the AT need encapsulate, and transmits on the RLP of service eBS by data tunnel.And for the reverse data that is sent by AT, service eBS can directly send to this reverse data outside IP network or send to DAP by the tunnel earlier and be transmitted by DAP.

Referring to Fig. 2, be the HRPD schematic network structure.HRPD replenishes as the CDMA2000 system, is used for focus and covers, for the user provides high-speed packet data service.Solid line represents to carry the transmission channel of data among the figure, comprises the A8/A10 interface, and dotted line is represented the transmission channel of signaling, comprises the A9/A11 interface.AT is by HRPD eat dishes without rice or wine technology and AN (Access Network, access network) unit communicates, the AN unit is by A8/A9 interface and PCF (Packet Control Function, Packet Control Function) after the unit carries out data and information mutual, PCF is again by A10/A11 interface and PDSN (Packet Data ServingNode, packet data serving node) unit carries out the mutual of data and signaling, wherein, in actual applications, PDSN is by PPP (Point-to-Point Protocol, point-to-point protocol) AT is inserted IP network, the route of next jumping is provided for packet data package simultaneously.HA is used to AT that distributing IP address etc. is provided, and HAAA (Home Authentication, Authorization and Account, local authentication, authentication and charging) is used to AT that authentication, authentication and billing function are provided.

In order to guarantee the continuity of user's business when switching to the HRPD network by the UMB network, particularly at the continuity of the stronger speech business of user experience demand, current 3GPP2 (Third Generation Partnership Project 2, international organizations) proposed the framework that the activation of service attitude is switched between UMB network and the HRPD network, the schematic diagram of this framework as shown in Figure 3.Switch in order to allow the multimode terminal of supporting multiple network can carry out the UMB network of low delay and the activation of service attitude between the HRPD network (among the figure be example with the speech business), need be before carrying out handoff procedure to carry out the session etc. of HRPD network by current UMB network contextual pre-established.In this framework AT by and HRPD AN/PCF between the IP interface tunnel set up carry out the transmitting-receiving of HRPD packet, this tunnel allows AT receiving and dispatching the relevant HRPD packet that HRPD is used for HRPD pre-registration and maintenance HRPD session under the UMB activated state and between the HRPD AN/PCF, for example PPP sets up, TFT sets up, signaling message etc.; These HRPD packets send by UDP/IP, and carry on the UMB network, are pure UMB packets at the UMB network promptly.

At how to switch on the problem of HRPD network by the UMB network, prior art provides a kind of method of introducing the AN/PCF of simplification, the AN/PCF of this simplification is a virtual HRPD AN/PCF, it comprises DO protocol stack (safe floor with and on), but the AN/PCF of this simplification does not have radio transmission-receiving function, and support IOS (the Interoperability Specification of standard between the PDSN, the interoperability standard) interface (A10/A11), simultaneously and also support IOS (Interoperability Specification, the interoperability standard) interface (as A13 etc.) of standard between other HRPD AN/PCF that disposed (being real target HRPD AN/PCF).This method comprises: AT carries out pre-established process (comprising session negotiation, authentication, PPP foundation, Business Stream masterplate foundation etc.) with the AN/PCF that simplifies earlier.But in real the switching, when AT be tuned to the HRPD network, after catching the HRPD network, AT sets up earlier and being connected of real target HRPD AN/PCF, real then target HRPD AN/PCF obtains the HRPD session from the AN/PCF that simplifies, and then sets up A8/10.See Fig. 4 for details, for prior art provide by UMB to the AN/PCF switching flow schematic diagram of simplifying.

The inventor is in realizing process of the present invention, and what the discovery prior art provided exists following shortcoming and defect by UMB at least to the AN/PCF changing method of simplifying:

The changing method that prior art provides is when AT switches to HRPD, AT need catch network again, setting up HRPD again connects, the HRPD session that real then target HRPD AN/PCF obtains this AT from the AN/PCF that simplifies again, set up A8/A10 at last again, make that so whole handover delay can be long, correspondingly, the user is interrupted also can be longer.

Summary of the invention

In order to realize by UMB reducing handover delay when the activated state of HRPD is switched, the embodiment of the invention provides method, system and the equipment that switches between a kind of wireless communication network system.Described technical scheme is as follows:

On the one hand, provide the method for switching between a kind of wireless communication network system, described method comprises:

The Access Network of simplifying in the target access network/Packet Control Function unit AN/PCF receives the handoff request message of self terminal, searches target AN according to described handoff request message, sends session transfer request message to the target AN that finds;

The AN/PCF of described simplification receives the session transfer response message from described target AN, indicates described terminal to be linked into described target AN; Described step of searching target AN according to described handoff request message also comprises:

The AN/PCF of described simplification and PDSN carry out Flow Control;

The AN/PCF of described simplification specifically comprises after the target AN that finds sends session transfer request message:

After described target AN receives described session transfer request, the new sector Resources allocation that will switch for described terminal;

Catch after being connected of described PDSN application MIP registration and disconnection and legacy network be tuned to the terminal of target access network;

Behind the MIP registration reply message of reception from the described terminal of described PDSN buffer memory, described MIP registration reply message is forwarded to described terminal.

On the one hand, provide a kind of switched system, described system comprises: the Access Network of simplification/Packet Control Function unit AN/PCF and target AN, and the AN/PCF of described simplification and target AN are arranged in target access network;

The AN/PCF of described simplification is used to receive the handoff request message of self terminal, searches target AN according to described handoff request message, sends session transfer request message to finding target AN; Also be used to receive session transfer response message, indicate described terminal to be linked into described target AN from described target AN;

Described target AN is used to receive the session transfer request message that the AN/PCF of described simplification sends, and returns the session transfer response message to the AN/PCF of described simplification, also is used to receive the access of described terminal under the AN/PCF of described simplification indication;

Described system also comprises: PDSN; Wherein,

Described PDSN is used to receive the MIP application for registration of described terminal, returns described MIP registration reply message to described target AN;

Described target AN is used to receive the access of described terminal under the AN/PCF of described simplification indication, is specially the new sector Resources allocation that will switch to for described terminal; The MIP registration reply message that reception and the described PDSN of buffer memory issue; After also being used to catch described terminal, described MIP registration reply message is forwarded to described terminal.

Again on the one hand, provide a kind of target AN, described target AN is used to receive the session transfer request message of the AN/PCF of simplification; And to the AN/PCF of described simplification transmission session transfer response message; Also be used to receive the access of terminal of the AN/PCF indication of described simplification, described target AN specifically comprises:

First processing module, be used to receive the session transfer request message that the AN/PCF of described simplification sends after, for described terminal in the new sector Resources allocation that will switch to, and send the session transfer response message to the AN/PCF of described simplification;

Second processing module, be used for when described terminal be tuned to after the described target access network, after catching described terminal and receiving the MIP registration reply message that PDSN returns, described MIP registration reply message is forwarded to described terminal.

The beneficial effect of the technical scheme that the embodiment of the invention provides is:

Under the prerequisite of the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network by the UMB network, by adopting the AN/PCF that simplifies to send session transfer request message to target AN, direct-cut operation realizes finishing the handoff procedure of UMB network to the HRPD network to the mode of real target AN, reduced whole handover delay, thereby guaranteed the continuity of customer service, reduced user's interruption.

Description of drawings

Fig. 1 is the UMB network architecture schematic diagram that prior art provides;

Fig. 2 is the HRPD schematic network structure that prior art provides;

Fig. 3 is the configuration diagram that the UMB network that provides of prior art and HRPD network switch;

Fig. 4 is that the AN/PCF that the employing that provides of prior art is simplified switches mutual schematic diagram to the UMB network to the HRPD network;

Fig. 5 is the method flow diagram that switches between the wireless communication network system that provides of the embodiment of the invention 1;

Mutual schematic diagram is provided between the wireless communication network system that provides of the embodiment of the invention 1 Fig. 6;

Mutual schematic diagram is provided between the wireless communication network system that provides of the embodiment of the invention 2 Fig. 7;

Fig. 8 is the method flow diagram that switches between the wireless communication network system that provides of the embodiment of the invention 3;

Mutual schematic diagram is provided between the wireless communication network system that provides of the embodiment of the invention 3 Fig. 9;

Mutual schematic diagram is provided between the wireless communication network system that provides of the embodiment of the invention 4 Figure 10;

Figure 11 is the switched system schematic diagram that the embodiment of the invention 5 provides;

Figure 12 is another schematic diagram of switched system that the embodiment of the invention 5 provides;

Figure 13 is the simplification AN/PCF schematic diagram that the embodiment of the invention 5 provides;

Figure 14 is the schematic diagram of the target AN that provides of the embodiment of the invention 6.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.

For at the handoff procedure of UMB network to the HRPD network, reduced whole handover delay, guarantee the continuity of customer service, the embodiment of the invention provides the method for switching between a kind of wireless communication network system, method thes contents are as follows: the handoff request message that the Access Network of simplifying in the target access network/Packet Control Function unit AN/PCF accesses terminal and sends, and the AN/PCF of simplification sends session transfer request message to target AN; After the AN/PCF that simplifies receives the session transfer response message of target AN transmission, indication accesses terminal and is linked into target AN, realization accesses terminal and switches to target access network by legacy network, has reduced whole handover delay, thereby has guaranteed the continuity of customer service.Provide the method for switching between wireless communication network system to be described in detail with a plurality of embodiment to the embodiment of the invention below.

Embodiment 1

Referring to Fig. 5, the embodiment of the invention provides the method for switching between a kind of wireless communication network system, the configuration diagram that UMB network that provides with Fig. 3 and HRPD network switch is that example describes, for the method that the embodiment of the invention is provided, be described in detail, also provide the mutual schematic diagram of the method for switching between wireless communication network system referring to Fig. 6 present embodiment, referring to Fig. 5 and Fig. 6, the method that the embodiment of the invention is provided is described in detail below, wherein thes contents are as follows:

Pre-established HRPD of step 101:AT and PPP session.Particular content is as follows:

When a:AT found the HRPD channel record is arranged in the UMB Neighboring Cell List, AT detected the edge of UMB network, also obtained the sectorID (sector mark) of contiguous HRPD AN simultaneously.

B: in order to set up session with the HRPD network, AT obtains to choose the FQDN (Fully Qualified Domain Name, universe name) of AN, and carries out the IP address that DNS (Domain Name System, domain name system) inquiry obtains HRPD AN.When the request of receiving, the IP address of dns lookup HRPD AN, and send to AT.Suppose that the address that sends to AT is the address of the AN/PCF of simplification.

C:AT is according to the IP address that obtains, to the AN/PCF request UATI (Unicast Access Terminal Identifier, unicast access terminal identifier symbol) of the simplification of IP address correspondence.

Wherein, this UATI is a user ID, is used for identifying AT at the HRPD network uniquely.

The AN/PCF of d:AT and simplification sets up session, and these sessions are used for communicating by letter between follow-up AT and the HRPD network.

The AN/PCF of e:AT and simplification carries out PPP (Point-to-Point Protocol, point-to-point protocol) and LCP (Link Control Protocol, LCP) consults.Wherein, ppp protocol provides a kind of data link layer protocol that transmits encapsulation network layer data bag on point-to-point link.

F: the AN/PCF of simplification produces random challenge, and sends to AT. by CHAP Challenge challenge message

G: after the AN/PCF that simplifies receives CHAP Response response message from AT, send Access-Request by the A12 interface and insert request message to AN-AAA.

H:AN-AAA searches password according to the user property in the Access-Request message, if authentication is passed through, then sends A12Access-Accept and inserts reception message to the AN/PCF that simplifies.

I: after receiving A12Access-Accept message, the AN/PCF of simplification sends CHAP Authetication Success authentication success message to AT, and expression AT inserts the success of HRPD network authentication.

J: the AN/PCF of simplification sends A11-Registration Request login request message to PDSN.

After k:PDSN judges that this A11-Registration Request message effectively, send A11-Registration Reply registration reply message, carry in this message and receive indication to the AN/PCF that simplifies.

The AN/PCF of l:AT and simplification, PDSN carry out PPP and connect the process of setting up.

During this time, AT success is pre-established HRPD and PPP session.Following step can take place in any moment after step " l ".Whether switched by eBS or AT decision, it specifically is the switching of being carried out by eBS or AT decision that the embodiment of the invention does not limit.

Step 102: when decision switches to the HRPD network, AT sends handoff request message to the HRPD network.Be specially:

M:AT sends RouteUpdate and ConnectionRequest message arrives the AN/PCF that simplifies.

Wherein, this RouteUpdate is mainly used in information such as reporting pilot tone, intensity; ConnectionRequest is mainly used in the transmission connection request;

After the handoff request message that the AN/PCF that simplifies in the step 103:HRPD network receives, the AN/PCF of simplification and PDSN carry out Flow Control, and send session transfer request message to target access network unit (being target AN).Concrete steps are as follows:

N: after the AN/PCF that simplifies received RouteUpdate and ConnectionRequest message, the AN/PCF of simplification sent A10Xoff to PDSN, is used for carrying out Flow Control with PDSN.Wherein, the AN/PCF of simplification and PDSN carry out the purpose of Flow Control be the notice PDSN downlink data is carried out buffer memory.

O: after the AN/PCF that simplifies receives RouteUpdate and ConnectionRequest message, can select suitable real target AN according to RouteUpdate message, and to this target AN transmission direct-cut operation request message, promptly send A16-Session Transfer Request session transfer request message to target AN, ask to shift for this AT carries out session.

Wherein, owing to carried information such as pilot tone, intensity and sector in the RouteUpdate message, the AN/PCF that simplifies can be according to the selection strategy of self, select a real target AN according to this RouteUpdate message, for example, the AN/PCF that simplifies is according to selection intensity information, and the AN of selection intensity maximum can also select by other selection strategy as suitable real target AN.The embodiment of the invention is not limited in carries out the concrete selection strategy that real target AN selects time institute's foundation.

Wherein, above-mentioned A16-Session Transfer Request message represents it is a direct-cut operation request, wherein, comprise the SSIR (Session State Information Record, session state information record) of current HRPD session, the characteristic of all supports of HRPD network and up-to-date Traffic Channel report message in this message.

After step 104: target AN receives session transfer request message, for access terminal AT sends the session transfer response message in the new sector Resources allocation that will switch to and to the AN/PCF that simplifies.Particular content is:

P: real target AN receives the direct-cut operation request message, judges that according to the up-to-date Traffic Channel report message that carries in this message AT will switch to the new sector of target AN, and assigns the resource that needs for these sectors.Target AN receives the direct-cut operation request, and sends A16-Session Transfer Response session transfer response message to the AN/PCF that simplifies, and this message comprises the SSIR (also comprising Traffic Channel necessary parameter in new sector among this SSIR) of suggestion.

Further, if when real target AN that selects and target P CF also do not connect, also should comprise after the step " o ":

Q: target AN sends A9-Setup-A8 message and sets up the A8 connection to target P CF, and carries the data indication.

After r: target P CF receives this A9-Setup-A8 message, when finding that the A10 of this AT does not connect, target P CF sends A11-Registration Request login request message and sets up A10 to PDSN and connect, and wherein A11-RegistrationRequest message comprises the A10 connection and sets up the airlink record.

S:PDSN receives this A11-Registration Request message, judges that when this message was effective, PDSN received connection; And, carry the life cycle that receives indication and set in this message to target P CF answer A11-Registration Reply registration reply message.At this moment the binding information that connects of the A10 among the PDSN upgrades, and definite object PCF all.

Wherein, when PDSN carries out the validity judgement to A11-Registration Request message, for example, can judge according to the degree of association of sequence number of carrying in the message and time, if the related back of sequence number that receives and time and the related numerical value unanimity that prestores of PDSN self, think that then this message is effective, otherwise, think that this message is invalid.

T: target P CF sends A9-Connect-A8 message to target AN.

Above-mentioned steps " q " to step " t " can be in step " o " afterwards, step " kk " whenever carrying out before.

Step 105: after the AN/PCF of simplification receives the direct-cut operation response message, send Traffic Channel Assignment message, and finish message to target AN transmission session transfer to AT.Particular content is as follows:

U: after the AN/PCF of simplification receives A16-Session Transfer Response session transfer response message, send Traffic Channel Assignment Traffic Channel Assignment message, be used to the new connection of AT assignment to AT.

Wherein, in order to increase reliability, the AN/PCF of simplification can repeat this step " u ".

V: the AN/PCF of simplification sends A16-Session Transfer Complete session transfer to target AN and finishes message.

Step 106:AT be tuned to before the HRPD to PDSN application MIP registration.Particular content is as follows

W:AT can be tuned to send Mobile IP Registration Request by the tunnel to PDSN before the HRPD be the MIP login request message, but AT does not wait for Mobile IP Registration Response (Reply) message.This step can occur in step " u " back and carry out.

After x:PDSN received the Mobile IP Registration Request message of AT transmission, sending MobileIP Registration Request to HA was the MIP login request message.

Y: when HA receives Mobile IP Registration Request message from PDSN, HA upgrades the binding record of AT, and to send MIP Registration Reply to PDSN be the MIP registration reply message.

Wherein, because in above-mentioned steps " n ", the AN/PCF of simplification and PDSN have carried out Flow Control, at this moment, the HRPD of AT connects not set up, so PDSN carries out buffer memory to this MIP registration reply message.

Step 107:AT sends connection closed message to eBS, and indication AT be tuned to the network of other technologies.Particular content is as follows:

The eBS of z:AT in the UMB network sends ConnectionClose connection closed message, and indication AT be tuned to the network of other technologies.After the UMB network received this ConnectionClose message, eBS sent the IPT-Notification message of carrying connection closed indication all eBS and DAP in the Active Set, represented that this connection closes.Wherein, this step can take place in any moment after step " w ".

Step 108:AT be tuned to HRPD, target AN catches AT, if after target AN receives MIP registration reply message from PDSN, this MIP registration reply message is forwarded to AT, AT begins transmitting-receiving from output packet.Concrete steps are as follows:

Aa:AT be tuned to HRPD, and target AN catches AT.

Bb: after target AN caught AT, target AN sent A9-AL Connected message to target P CF.

Cc: after receiving A9-AL Connected message, target P CF sends A11-Registration Request login request message to PDSN, and in message, comprise and activate beginning airlink record, this A11-Registration Request is specially Active Start and is used to activate PDSN, and notice PDSN discharges data in buffer.

Dd: after receiving A11-Registration Request message, PDSN sends A11-Registration Reply registration reply message to target P CF.PDSN is no longer data cached after this step, all mails to target P CF when data arrive.

Ee: after receiving A11-Registration Reply message, target P CF sends A9-AL ConnectedAck message to target AN, is used to respond A9-AL Connected message.

Ff: if the AN/PCF that simplifies and target AN at different subnets, then target AN is new UATI of AT assignment.

Those skilled in the art can know, the AN/PCF that simplifies and target AN are positioned at different lane place usually, and promptly the AN/PCF of Jian Huaing is positioned under the different subnets with target AN.

Gg:PDSN with the MIP Registration Reply forwards of buffer memory to target AN.This step is carried out afterwards in step " dd ".

Hh: target AN receives the MIP Registration Reply message that PDSN issues, and this forwards is arrived AT.After AT received this message, then AT can send packet to network side, also can receive the packet from network side simultaneously.

Step 109: the AN/PCF disconnection of simplification and being connected of PDSN, and empty the session relevant with this AT.Particular content is as follows:

Ii: after target AN catches AT, and after confirming that AT inserts this HRPD system by target AN, then target AN sends A16-Session Release Indication session release Indication message to the AN/PCF that simplifies, this message shows that the session of this AT is under the control of target AN, therefore the AN/PCF that simplifies can disconnect and being connected of PDSN, and empties the session relevant with this AT.

Jj: the AN/PCF of simplification sends A16-Session Release Indication Ack session to target AN and discharges the indication response message.

Kk:PDSN sends A11-Registration Update registration update message to the AN/PCF that simplifies, and the A10 that this message is used to initiate to close with simplifying AN/PCF is connected.Wherein, this step " kk " can occur in any moment after the step " s ".

Ll: the AN/PCF of simplification sends A11-Registration Acknowledge message to PDSN, is used to respond A11-Registration Update message.

Mm: after the AN/PCF that simplifies received A16-Session Release Indication message, the AN/PCF of simplification sent A11-Registration Request message to PDSN, and life cycle is changed to 0.

Nn:PDSN sends A11-Registration Reply message to the AN/PCF that simplifies, and the A10 that the AN/PCF of simplification closes this AT connects.

The method that the embodiment of the invention provides is under the prerequisite of the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network by the UMB network, finish the handoff procedure of UMB network by the AN/PCF direct-cut operation of simplifying to the method for real target AN to the HRPD network, can shorten whole handover delay greatly, guaranteed the continuity of customer service, greatly reducing the user interrupts, better experience for the user, particularly at business higher such as voice, strengthened the user provides service to operator satisfaction greatly to delay requirement.

Embodiment 2

The embodiment of the invention provides the method for switching between a kind of wireless communication network system, still the configuration diagram switched of UMB network that provides with Fig. 3 and HRPD network is that example describes, wherein, the difference of present embodiment and embodiment 1 is, after the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network, AT sends handoff request message to the HRPD network, wherein, this handoff request message is specially RouteUpdate and HandoffRequest message.

Be that step " m " is: when decision switches to HRPD, AT sends RouteUpdate and HandoffRequest handoff request message to HRPD AN

Correspondingly, step " u " is specially: the AN/PCF of simplification sends the HandoffResponse switching response message and TrafficChannelAssignment message arrives AT, wherein, HandoffResponse message is used to respond HandoffRequest message, and TrafficChannelAssignment message is used to the new connection of AT assignment.

Referring to Fig. 7, the mutual schematic diagram of the method for switching between the wireless communication network system that provides for the embodiment of the invention.Wherein, reciprocal process is specific as follows:

A: when AT found the HRPD channel record is arranged in the UMB Neighboring Cell List, then AT detected the edge of UMB network, and the while is the sectorID (sector mark) of the contiguous HRPD AN of AT acquisition also.

B: in order to set up session with the HRPD network, AT obtains to choose the FQDN of AN, and the IP address that the DNS inquiry obtains HRPD AN takes place.When the request of receiving, the IP address of DNS service search HRPD AN, and send to terminal.Here the address that supposition is returned is the address of the AN/PCF of simplification.

C:AT is to the AN/PCF request UATI that simplifies.

The AN/PCF of e:AT and simplification carries out PPP and LCP consults.

F; The AN/PCF that simplifies produces random challenge and sends to AT by the CHAP challenge message.

G: after the AN/PCF that simplifies received CHAP response message from AT, it sent Access-Request message to AN-AAA by the A12 interface.

H:AN-AAA searches password according to the user property in the Access-Request message, if authentication is passed through, then sends the AN/PCF that Access-Accept message is returned simplification.

I: after receiving Access-Accept message, the AN/PCF of simplification returns the indication of access authentication success and gives AT.

J: the AN/PCF of simplification sends A11-Registration Request message to PDSN.

K: when register requirement was effective, PDSN replied A11-Registration Reply message to the AN/PCF that simplifies, and carried to receive and indicate.

L:AT and AN/PCF, PDSN carry out PPP and connect the process of setting up.

During this time, AT success is pre-established HRPD and PPP session.Following step can take place in any moment after step " l ".Whether switch by eBS or AT decision.

M: when decision switches to HRPD, AT sends RouteUpdate and HandoffRequest message to HRPD AN.

N: when receiving this message, the AN/PCF of simplification and PDSN carry out Flow Control.

O: after the AN/PCF that simplifies received RouteUpdate and HandoffRequest message, the AN/PCF of simplification decision was initiated to the direct-cut operation of real target AN.The AN/PCF that simplifies sends A16-Session Transfer Request message to real target AN, asks to shift for this AT carries out session.This message comprises the SSIR (session state information record) of current HRPD session and the characteristic of all supports.Up-to-date Traffic Channel report message also is encapsulated in this message, and expression is a direct-cut operation request.The AN/PCF that simplifies can select suitable target AN according to RouteUpdate message.

P: real target AN judges that according to up-to-date Traffic Channel report message AT will switch to the new sector of target AN, and assigns the resource that needs for these sectors.Target AN receives the direct-cut operation request, and sends A16-Session Transfer Response message to the AN/PCF that simplifies, and this message comprises the SSIR (also comprising Traffic Channel necessary parameter in new sector among this SSIR) of suggestion.

Step " q " is to step " t " ' can be after step " o ", step " kk " whenever carrying out before.

R: target P CF finds that the A10 of this AT connects, and target P CF sends A11-Registration Request message and sets up the A10 connection to PDSN.A11-Registration Request message comprises the A10 connection and sets up the airlink record.

S: when A11-Registration Request message was effective, PDSN received connection, and replied A11-Registration Reply message to target P CF, and carried the life cycle that receives indication and set.At this moment the binding information that connects of the A10 among the PDSN upgrades, and definite object PCF all.

T: target P CF sends A9-Connect-A8 message to target AN.

U: the AN/PCF of simplification sends HandoffResponse and TrafficChannelAssignment message arrives AT, and TrafficChannelAssignment message is the new connection of AT assignment.This step can occur in any moment after the step " p ".In order to increase reliability, the AN/PCF of simplification can repeat this step.

V: the AN/PCF of simplification sends A16-Session Transfer Complete message to target AN.

W:AT can be tuned to send Mobile IP Registration Request message to PDSN by the tunnel before the HRPD, but AT does not wait for Registration Response message.This step can occur in step " u " back and carry out.

X:PDSN sends Mobile IP Registration Request message to HA.

Y: after HA received login request message from PDSN, HA upgraded the binding record of AT, and sent MIPRegistration Reply message and return PDSN.Because connecting, the HRPD of AT do not set up this message of PDSN buffer memory.

Z:AT sends ConnectionClose to eBS, and indicate AT be tuned to the network of other technologies.When receiving this message, eBS sends the IPT-Notification message of carrying the connection closed indication all eBS and DAP in the Active Set, represents that this connection closes.This step can take place in any moment after step " w ".

Aa:AT be tuned to HRPD, and target AN catches AT.

Cc: after receiving A9-AL Connected message, target P CF sends A11-Registration Request message to PDSN, and comprises activation beginning airlink record in message.

Dd: after receiving A11-Registration Request message, PDSN sends A11-Registration Reply message to target P CF.PDSN is no longer data cached after this step, all mails to PCF when data arrive.

Ee: after receiving A11-Registration Reply message, PCF sends A9-AL Connected Ack message and responds A9-AL Connected message.

Hh: target AN transmits MIP Registration Reply message to AT.After AT received this message, then AT can send packet to network side, also can receive the packet from network side simultaneously.

Ii: after target AN catches AT, and confirm AT by target AN connecting system, then target AN sends A16-SessionRelease Indication message to the AN/PCF that simplifies.The session that this message shows this AT is under the control of target AN, and therefore the AN/PCF that simplifies can disconnect and being connected of PDSN, and empties the session relevant with this AT.

Jj: the AN/PCF of simplification sends A16-Session Release Indication Ack message and returns target AN.

Step " kk " can occur in any moment after the step " s ".

Kk:PDSN initiates to close with the A10 that simplifies AN/PCF to be connected by sending A11-Registration Update message.

Ll: the AN/PCF response A11-Registration Acknowledge message of simplification.

Mm: after receiving A16-Session Release Indication message, the AN/PCF of simplification sends A11-Registration Request message to PDSN, and life cycle is changed to 0.

Embodiment 3

Referring to Fig. 8, the embodiment of the invention provides the method for switching between a kind of wireless communication network system, still the configuration diagram switched of UMB network that provides with Fig. 3 and HRPD network is that example describes, wherein, the difference of present embodiment and embodiment 1 and embodiment 2 is, AT success pre-established after HRPD and the PPP session, after decision switches to the HRPD network, after the AN/PCF of the simplification of HRPD receives the handoff request message that AT sends, do not need to send A10Xoff and carry out Flow Control to PDSN.Wherein, for the method that the embodiment of the invention is provided is described in detail, also provide the mutual schematic diagram of the method for switching between wireless communication network system referring to Fig. 9 present embodiment, referring to Fig. 8 and Fig. 9, the method that the embodiment of the invention is provided is described in detail below, and concrete thes contents are as follows:

Pre-established HRPD of step 301:AT and PPP session.Particular content is as follows:

C:AT is according to the IP address that obtains, to the AN/PCF request UATI (Unicast AccessTerminal Identifier, unicast access terminal identifier symbol) of the simplification of IP address correspondence.

The AN/PCF of e:AT and simplification carries out PPP (Point-to-Point Protocol, point-to-point protocol) and LCP (LinkControl Protocol, LCP) consults.Wherein, ppp protocol provides a kind of data link layer protocol that transmits encapsulation network layer data bag on point-to-point link.

Step 302: when decision switches to the HRPD network, AT sends handoff request message to the HRPD network.Be specially:

Wherein, this RouteUpdate is mainly used in information such as reporting pilot tone, intensity; Connect ionRequest is mainly used in the transmission connection request;

After the handoff request message that the AN/PCF that simplifies in the step 203:HRPD network receives, send session transfer request message to target AN.Concrete steps are as follows:

N: after the AN/PCF that simplifies receives RouteUpdate and ConnectionRequest message, can select suitable real target AN according to RouteUpdate message, and to this target AN transmission direct-cut operation request message, promptly send A16-Session Transfer Request session transfer request message to target AN, ask to shift for this AT carries out session.

Wherein, above-mentioned A16-Session Transfer Request message represents it is a direct-cut operation request, wherein, comprise the SSIR (session state information record) of current HRPD session, the characteristic of all supports of HRPD network and up-to-date Traffic Channel report message in this message.

After step 304: target AN receives session transfer request message, for access terminal AT sends the session transfer response message in the new sector Resources allocation that will switch to and to the AN/PCF that simplifies.Particular content is:

O: real target AN receives the direct-cut operation request message, judges that according to the up-to-date Traffic Channel report message that carries in this message AT will switch to the new sector of target AN, and assigns the resource that needs for these sectors.Target AN receives the direct-cut operation request, and sends A16-Session Transfer Response session transfer response message to the AN/PCF that simplifies, and this message comprises the SSIR (also comprising Traffic Channel necessary parameter in new sector among this SSIR) of suggestion.

Further, if when real target AN that selects and target P CF also do not connect, also should comprise after the step " n ":

P: target AN sends A9-Setup-A8 message and sets up the A8 connection to target P CF, and carries the data indication.

After q: target P CF receives this A9-Setup-A8 message, when finding that the A10 of this AT does not connect, target P CF sends A11-Registration Request login request message and sets up A10 to PDSN and connect, and wherein A11-RegistrationRequest message comprises the A10 connection and sets up the airlink record.

R:PDSN receives this A11-Registration Request message, judges that when this message was effective, PDSN received connection; And, carry the life cycle that receives indication and set in this message to target P CF answer A11-Registration Reply registration reply message.At this moment the binding information that connects of the A10 among the PDSN upgrades, and definite object PCF all.After this step is finished,, then data all are sent to target P CF if PDSN has the data of this AT.

S: target P CF sends A9-Connect-A8 message to target AN.

Above-mentioned steps " p " to step " s " can be in step " n " afterwards, step " ff " whenever carrying out before.

Step 305: after the AN/PCF of simplification receives the session transfer response message, send Traffic Channel Assignment message, and finish message to target AN transmission session transfer to AT.Particular content is as follows:

T: after the AN/PCF of simplification receives A16-Session Transfer Response direct-cut operation response message (being the session transfer response message), send Traffic Channel Assignment Traffic Channel Assignment message to AT, be used to the new connection of AT assignment.

Wherein, in order to increase reliability, the AN/PCF of simplification can repeat this step " t ".

U: the AN/PCF of simplification sends A16-Session Transfer Complete session transfer to target AN and finishes message.

Step 306:AT be tuned to before the HRPD to PDSN application MIP registration, the MIP response message that target AN buffer memory PDSN issues.Particular content is as follows

V:AT can be tuned to send Mobile IP Registration Request by the tunnel to PDSN before the HRPD be the MIP login request message, but AT does not wait for Mobile IP Registration Response (Reply) message.This step can occur in step " t " back and carry out.

After w:PDSN receives the Mobile IP Registration Request message of AT transmission, send MobileIP Registration RequestMIP login request message to HA.

X: when HA receives Mobile IP Registration Request message from PDSN, HA upgrades the binding record of AT, and to send MIP Registration Reply to PDSN be the MIP registration reply message.

Y: after executing above-mentioned steps " r ", PDSN with MIP Registration Reply forwards to target AN.

Step 307:AT sends connection closed message to eBS, and indication AT be tuned to the network of other technologies.Particular content is as follows:

The eBS of z:AT in the UMB network sends ConnectionClose connection closed message, and indication AT be tuned to the network of other technologies.After the UMB network received this ConnectionClose message, eBS sent the IPT-Notification message of carrying connection closed indication all eBS and DAP in the Active Set, represented that this connection closes.Wherein, this step can take place in any moment after step " v ".

Step 308:AT be tuned to HRPD, target AN catches AT, target AN is forwarded to AT with the MIP registration reply message of buffer memory, AT begin the transmitting-receiving from output packet.Concrete steps are as follows:

Aa:AT be tuned to HRPD, and target AN catches AT.

Bb: if the AN/PCF that simplifies and target AN at different subnets, then target AN is new UATI of AT assignment.

Cc: after target AN caught AT, target AN transmitted MIP Registration Reply message to AT.After AT received this message, then AT can send packet to network side, also can receive the packet from network side simultaneously.

Step 309: the AN/PCF disconnection of simplification and being connected of PDSN, and empty the session relevant with this AT.Particular content is as follows:

Dd: after target AN catches AT, and confirm AT by target AN connecting system, then target AN sends A16-SessionRelease Indication message to the AN/PCF that simplifies.The session that this message shows this AT is under the control of target AN, and therefore the AN/PCF that simplifies can disconnect and being connected of PDSN, and empties the session relevant with this AT.

Ee: the AN/PCF of simplification sends A16-Session Release Indication Ack message and returns target AN.

Ff:PDSN initiates to close with the A10 that simplifies AN/PCF to be connected by sending A11-Registration Update message.

Gg: the AN/PCF response A11-Registration Acknowledge message of simplification.

Hh: after receiving A16-Session Release Indication message, the AN/PCF of simplification sends A11-Registration Request message to PDSN, and life cycle is changed to 0.

Ii:PDSN sends A11-Registration Reply message to the AN/PCF that simplifies, and the A10 that the AN/PCF of simplification closes this AT connects.

Embodiment 4

The embodiment of the invention provides the method for switching between a kind of wireless communication network system, still the configuration diagram switched of UMB network that provides with Fig. 3 and HRPD network is that example describes, wherein, the difference of present embodiment and embodiment 3 is, after the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network, AT sends handoff request message to the HRPD network, wherein, this handoff request message is specially RouteUpdate and HandoffRequest message.

Be that step " m " is: when decision switches to HRPD, AT sends RouteUpdate and HandoffRequest handoff request message to HRPD AN.

Correspondingly, step " t " is specially: the AN/PCF of simplification sends the HandoffResponse switching response message and TrafficChannelAssignment message arrives AT, wherein, HandoffResponse message is used to respond HandoffRequest message, and TrafficChannelAssignment message is used to the new connection of AT assignment.

Referring to Figure 10, the mutual schematic diagram of the method for switching between the wireless communication network system that provides for the embodiment of the invention.Wherein, reciprocal process is specific as follows:

C:AT is to the AN/PCF request UATI that simplifies.

The AN/PCF of e:AT and simplification carries out PPP and LCP consults.

F: the AN/PCF of simplification produces random challenge and sends to AT by the CHAP challenge message.

I; After receiving Access-Accept message, the AN/PCF of simplification returns the indication of access authentication success and gives AT.

J: the AN/PCF of simplification sends A11-Registration Request message to PDSN.

L:AT and AN/PCF, PDSN carry out PPP and connect the process of setting up.

M: when decision switches to HRPD, AT sends RouteUpdate and HandoffRequestConnectionRequest message to HRPD AN.

N: after the AN/PCF that simplifies received RouteUpdate and HandoffRequest message, the AN/PCF of simplification decision was initiated to the direct-cut operation of real target AN.The AN/PCF that simplifies sends A16-Session Transfer Request message to real target AN, asks to shift for this AT carries out session.This message comprises the SSIR (session state information record) of current HRPD session and the characteristic of all supports.Up-to-date Traffic Channel report message also is encapsulated in this message, and expression is a direct-cut operation request.The AN/PCF that simplifies can select suitable target AN according to RouteUpdate message.

O: real target AN judges that according to up-to-date Traffic Channel report message AT will switch to the new sector of target AN, and assigns the resource that needs for these sectors.Target AN receives the direct-cut operation request, and sends A16-Session Transfer Response message to the AN/PCF that simplifies, and this message comprises the SSIR (also comprising Traffic Channel necessary parameter in new sector among this SSIR) of suggestion.

Step " p " to step " s " can be after step " n ", step " ff " whenever carrying out before.

Q: target P CF finds that the A10 of this AT connects, and target P CF sends A11-Registration Request message and sets up the A10 connection to PDSN.A11-Registration Request message comprises the A10 connection and sets up the airlink record.

R: when A11-Registration Request message was effective, PDSN received connection, and replied A11-Registration Reply message to target P CF, and carried the life cycle that receives indication and set.At this moment the binding information that connects of the A10 among the PDSN upgrades, and definite object PCF all.After this step is finished,, then send toward target P CF if PDSN has the data of this AT.

S: target P CF sends A9-Connect-A8 message to target AN.

T: the AN/PCF of simplification sends HandoffResponse and TrafficChannelAssignment message arrives AT, and TrafficChannelAssignment message is the new connection of AT assignment.This step can occur in any moment after the step " o ".In order to increase reliability, the AN/PCF of simplification can repeat this step.

U: the AN/PCF of simplification sends A16-Session Transfer Complete message to target AN.

V:AT can be tuned to send Mobile IP Registration Request message to PDSN by the tunnel before the HRPD, but AT does not wait for Registration Response message.This step can occur in step " t " back and carry out.

W:PDSN sends Mobile IP Registration Request message to HA.

X: after HA received login request message from PDSN, HA upgraded the binding record of AT, and sent MIPRegistration Reply message and return PDSN.

Y: after execution of step " r ", PDSN with MIP Registration Reply forwards to target AN.

Z:AT sends ConnectionClose to eBS, and indicate AT be tuned to the network of other technologies.When receiving this message, eBS sends the IPT-Notification message of carrying the connection closed indication all eBS and DAP in the Active Set, represents that this connection closes.This step can take place in any moment after step " v ".

Aa:AT be tuned to HRPD, and target AN catches AT.

Step " ff " can occur in any moment after the step " r ".

Gg: the AN/PCF response A11-Registration Acknowledge message of simplification.

Embodiment 5

Referring to Figure 11, the embodiment of the invention provides a kind of switched system, and this system comprises: the Access Network of simplification/Packet Control Function unit AN/PCF501 and target AN502, and the AN/PCF501 of above-mentioned simplification and target AN502 are arranged in target access network, wherein,

The AN/PCF501 that simplifies is used for the handoff request message that receiving terminal sends, and searches target AN502 according to described handoff request message, sends session transfer request message to the target AN502 that finds; After also being used to receive the session transfer response message that target AN502 returns, indicating terminal is linked into target AN502, realizes that terminal switches to target access network by legacy network;

Target AN502 is used to receive the session transfer request message that the AN/PCF501 of simplification sends, and returns the session transfer response message to the AN/PCF501 that simplifies, and also is used for the access of receiving terminal under the AN/PCF501 indication of simplifying.

Further, referring to Figure 12, the system that the embodiment of the invention provides also comprises packet data serving node PDSN503; PDSN503 is used for the MIP application for registration of receiving terminal, returns the MIP registration reply message to target AN502: also be used for and the AN/PCF501 that simplifies carries out Flow Control,

Correspondingly, the AN/PCF501 of simplification, the handoff request message and the PDSN503 that specifically are used for the receiving terminal transmission carry out Flow Control, and search target AN502 according to handoff request message, send session transfer request message to finding target AN502; Also be used for after the session transfer response message that receiving target AN502 returns, send Traffic Channel Assignment message, and finish message to target AN502 transmission session transfer to terminal;

Target AN is used for the access of receiving terminal under the AN/PCF501 indication of simplifying, and is specially the new sector Resources allocation that is used to terminal switching to; When terminal be tuned to after the target access network, after catching terminal and receiving the MIP registration reply message that PDSN503 returns, the MIP registration reply message is forwarded to terminal.

Further, when not needing to carry out Flow Control between AN/PCF501 that simplifies and the PDSN503,

PDSN503 is used for the MIP application for registration of receiving terminal, also is used for returning the MIP registration reply message to target AN502.

Correspondingly, the AN/PCF501 of simplification specifically is used for the handoff request message that receiving terminal sends, and searches target AN502 according to handoff request message, sends session transfer request message to finding target AN502; Also be used for after receiving the session transfer response message that target AN502 returns, send Traffic Channel Assignment message, and finish message to target AN502 transmission session transfer to terminal;

Target AN502, be used to receive session transfer request message after, for terminal sends the session transfer response message in the new sector Resources allocation that will switch to and to the AN/PCF501 that simplifies; Also be used for the MIP registration reply message that buffer memory PDSN503 issues; After also being used to catch terminal, the MIP registration reply message is forwarded to terminal, realizes that terminal switches to target access network by legacy network;

Wherein, terminal also needed and the AN/PCF501 that simplifies sets up the HRPD session before sending handoff request, and with the point-to-point protocol PPP session of packet data serving node PDSN503;

Further, after terminal was linked into target AN502, the AN/PCF501 of simplification also was used to disconnect and being connected of PDSN, and empties the session that accesses terminal.

The switched system that the embodiment of the invention provides, under the prerequisite of the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network by the UMB network, finish the handoff procedure of UMB network by the AN/PCF direct-cut operation of simplifying to the method for real target AN to the HRPD network, can shorten whole handover delay greatly, guaranteed the continuity of customer service, greatly reducing the user interrupts, better experience for the user, particularly at business higher such as voice, strengthened the user provides service to operator satisfaction greatly to delay requirement.

Embodiment 6

Referring to Figure 13, the embodiment of the invention provides a kind of Access Network/Packet Control Function unit AN/PCF of simplification, and the AN/PCF of this simplification comprises:

Receiver module 601 is used to the handoff request message that receives self terminal to send;

Processing module 602, be used for after receiver module 601 receives handoff request message, searching target AN according to handoff request message, and sending session transfer request message to the target AN that finds, and after receiving the session transfer response message that target AN returns, indicating terminal is linked into target AN.

Wherein, when the AN/PCF of this simplification needs and PDSN when carrying out Flow Control, the processing module 602 of the AN/PCF of simplification specifically comprises:

First processing unit 6021 is used for after receiver module 601 receives handoff request message and PDSN carries out Flow Control, and searches target AN according to handoff request message, sends session transfer request message to the target AN that finds;

Second processing unit 6022 is used for the session transfer response message that receiving target AN returns, and sends Traffic Channel Assignment message to terminal, and finishes message to target AN transmission session transfer.

Wherein, when the AN/PCF of this simplification did not need to carry out Flow Control with PDSN, the processing module 602 of the AN/PCF of simplification specifically comprised:

The 3rd processing unit 6023 is used for searching target AN according to handoff request message after receiver module 601 receives handoff request message, sends session transfer request message to finding target AN;

The manages unit 6024 everywhere, is used for the session transfer response message that receiving target AN returns, and sends Traffic Channel Assignment message to terminal, and sends session to target AN and shift and finish message.

Further, the AN/PCF of the simplification that provides of the embodiment of the invention also comprises:

Module 603 is set up in session, before the handoff request message that is used for sending with receiver module 601 receiving terminals and terminal set up the HRPD session;

Connect and cut off module 604, be used for after processing module 602 indicating terminals are linked into target AN, disconnection is connected with PDSN's.

The Access Network of the simplification that the embodiment of the invention provides/Packet Control Function unit AN/PCF, under the prerequisite of the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network by the UMB network, AN/PCF direct-cut operation by this simplification is finished the handoff procedure of UMB network to the HRPD network to the method for real target AN, can shorten whole handover delay greatly, guaranteed the continuity of customer service, greatly reducing the user interrupts, better experience for the user, particularly at business higher such as voice, strengthened the user provides service to operator satisfaction greatly to delay requirement.

Embodiment 7

The embodiment of the invention provides a kind of target AN, and this target AN is used to receive the session transfer request message of the AN/PCF of simplification; And to the AN/PCF transmission session transfer response message of simplifying; Also be used to receive the access of terminal of the AN/PCF indication of simplification.

Wherein, target AN specifically comprises:

First processing module 701, be used to receive the session transfer request message that the AN/PCF of simplification sends after, for terminal in the new sector Resources allocation that will switch to, and send the session transfer response message to the AN/PCF that simplifies;

Second processing module 702, be used for when terminal be tuned to after the target access network, after catching terminal and receiving the MIP registration reply message that PDSN returns, the MIP registration reply message is forwarded to terminal, realize that terminal switches to target access network by legacy network;

Wherein, this target AN specifically comprises:

The 3rd processing module 703, be used to receive session transfer request message after, for terminal in the new sector Resources allocation that will switch to, and send the session transfer response message to the AN/PCF that simplifies;

The manages module 704 everywhere, is used to receive and MIP registration reply message that buffer memory PDSN issues; After also being used to catch terminal, the MIP registration reply message is forwarded to terminal, realizes that terminal switches to target access network by legacy network.

The target AN that the embodiment of the invention provides, under the prerequisite of the AT pre-established HRPD of success and PPP session, when decision switches to the HRPD network by the UMB network, finish the handoff procedure of UMB network by the AN/PCF direct-cut operation of simplifying to the method for real target AN to the HRPD network, can shorten whole handover delay greatly, guaranteed the continuity of customer service, greatly reducing the user interrupts, better experience for the user, particularly at business higher such as voice, strengthened the user provides service to operator satisfaction greatly to delay requirement.

In sum, the technical scheme that the embodiment of the invention provides, finish the handoff procedure of UMB network by the AN/PCF direct-cut operation of simplifying to the method for real target AN to the HRPD network, can shorten whole handover delay greatly, guaranteed the continuity of customer service, greatly reduced the user and interrupt, better experienced for the user, particularly at business higher such as voice, strengthened the user provides service to operator satisfaction greatly to delay requirement.

" reception " speech in the embodiment of the invention can be understood as and initiatively obtains from other modules also can be to receive the information that other modules are sent.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

Part steps in the embodiment of the invention can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, as CD or hard disk etc.

The above only is specific embodiments of the invention;, for those skilled in the art, not all under the prerequisite that does not break away from the principle of the invention in order to restriction the present invention; any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the method for switching between a wireless communication network system is characterized in that described method comprises:

The AN/PCF of described simplification receives the session transfer response message from described target AN, indicates described terminal to be linked into described target AN;

Described step of searching target AN according to described handoff request message also comprises:

The AN/PCF of described simplification and PDSN carry out Flow Control;

2. the method for switching between wireless communication network system as claimed in claim 1 is characterized in that, described handoff request message is RouteUpdate and ConnectionRequest message;

Or;

RouteUpdate and HandoffRequest message.

3. the method for switching between wireless communication network system as claimed in claim 1 or 2 is characterized in that, the described terminal of described indication is linked into the step of described target AN, is specially:

Sending Traffic Channel Assignment message to described terminal indicates described terminal to be linked into described target AN.

4. the method for switching between a wireless communication network system is characterized in that described method comprises:

The MIP response message that described target AN receives and the described terminal of buffer memory issues to the described PDSN application MIP registration described PDSN in back;

Catch disconnect with legacy network be connected also be tuned to the terminal of target access network, the described MIP registration reply message of buffer memory is forwarded to described terminal.

5. the method as switching between the described wireless communication network system of the arbitrary claim of claim 1 to 4, it is characterized in that the Access Network of simplifying in the described target access network/Packet Control Function unit AN/PCF receives the handoff request message of self terminal also to comprise before:

Set up the HRPD session of the AN/PCF of the simplification in described terminal and the target access network, and the point-to-point protocol PPP session of described terminal and packet data serving node PDSN.

6. the method for switching between wireless communication network system as claimed in claim 5 is characterized in that, described method also comprises:

After the AN/PCF of described simplification indicated described terminal to be linked into described target AN, the AN/PCF of described simplification disconnection was connected with described PDSN's.

7. a switched system is characterized in that, described system comprises: the Access Network of simplification/Packet Control Function unit AN/PCF and target AN, and the AN/PCF of described simplification and target AN are arranged in target access network;

Described system also comprises: packet data serving node PDSN; Wherein,

8. a switched system is characterized in that, described system comprises: the Access Network of simplification/Packet Control Function unit AN/PCF and target AN, and the AN/PCF of described simplification and target AN are arranged in target access network;

Described system also comprises: packet data serving node PDSN; Wherein,

Described PDSN is used to receive the MIP application for registration of described terminal, returns described MIP registration reply message to described target AN, also is used for carrying out Flow Control with the AN/PCF of described simplification;

The AN/PCF of described simplification also is used for carrying out Flow Control with described PDSN;

Described target AN is used to accept the access of described terminal under the AN/PCF of described simplification indication, is specially the new sector Resources allocation that is used to described terminal switching to; When described terminal be tuned to after the described target access network, after catching described terminal and receiving the MIP registration reply message that described PDSN returns, described MIP registration reply message is forwarded to described terminal.

9. a target AN is characterized in that, described target AN is used to receive the session transfer request message of the AN/PCF of simplification; And to the AN/PCF of described simplification transmission session transfer response message; Also be used to receive the access of terminal of the AN/PCF indication of described simplification;

Described target AN specifically comprises:

10. a target AN is characterized in that, described target AN is used to receive the session transfer request message of the AN/PCF of simplification; And to the AN/PCF of described simplification transmission session transfer response message; Also be used to receive the access of terminal of the AN/PCF indication of described simplification;

Described target AN specifically comprises:

The 3rd processing module, be used to receive described session transfer request message after, for described terminal in the new sector Resources allocation that will switch to, and send the session transfer response message to the AN/PCF of described simplification;

The manages module everywhere, is used to receive and MIP registration reply message that buffer memory PDSN issues; After also being used to catch described terminal, described MIP registration reply message is forwarded to described terminal.