CN102625382B - The switching method and system of spanning across wireless network controller - Google Patents
The switching method and system of spanning across wireless network controller Download PDFInfo
- Publication number
- CN102625382B CN102625382B CN201110034011.8A CN201110034011A CN102625382B CN 102625382 B CN102625382 B CN 102625382B CN 201110034011 A CN201110034011 A CN 201110034011A CN 102625382 B CN102625382 B CN 102625382B
- Authority
- CN
- China
- Prior art keywords
- message
- switching
- source
- target
- sip message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of switching method of spanning across wireless network controller, including：Source access gateway AG is received after source radio network controller RNC handover request, notifies target AG to be that to be switched user equipment (UE) prepares resource by session initiation protocol sip message；The target AG prepares resource for the to be switched UE, the carrying set up between the source AG, and notifies that the source AG switchings are ready；The source AG notifies the to be switched UE to be switched to objective network.The present invention discloses a kind of switching system of spanning across wireless network controller.The present invention switches over control by source AG, and handover request thereby simplify the message flow of service switchover without ISCF；Media Stream after present invention switching is anchored on the AG of source, is eliminated the process that ISCF in the prior art carries out SDP negotiation with target SGW and the UE of to be switched UE opposite ends, be further simplify message flow, improve switching efficiency.
Description
Technical field
The present invention relates to the switching method and system of handoff technique, more particularly to a kind of spanning across wireless network controller.
Background technology
From the point of view of the evolution and development of communication network, the development of core network architecture shows two main trend：One is net
The Internet protocol (IP, Internet Protocol) of network is changed, and two be that various networks tend to syncretization.Therefore following core
Net will not be further divided into circuit switching (CS, Circuit Switched) domain, packet switch (PS, Packet Switching) domain and
The polytypes such as IP multimedia subsystem (IMS, IP Multimedia Subsystem), and will be an IP-based unification
Service control system, all business (including speech business, supplementary service and value-added service etc.) is all by this unified industry
Business control system is realized.
IP-based unified service control system (hereinafter referred to as unified IP kernel heart net) has two features, and one is voice
Realization etc. business uses session initiation protocol (SIP, Session Initiation Protocol)；Two be the Service control
System is unrelated with access technology, i.e., user can also can be accessed by PS accesses by CS.What PS access ways here referred to
It is that user can be by GPRS (GPRS, GeneralPacket Radio Service), WLAN
Packet networks such as (WLAN, Wireless Local Area Network) is linked into core net.And CS access ways refer to using
Family is by circuit domain Radio Access Network such as base station sub-system (BSS, Base Station Subsystem) or wireless network
The equipment such as subsystem (RNS, RadioNetwork Subsystem) are linked into core net.Whether which kind of access way is used,
Business is all provided by above-mentioned unified IP kernel heart net.
Fig. 1 shows the application scenarios schematic diagram that unified IP kernel heart net is linked into using CS access ways, such as Fig. 1 institutes
Show, user equipment (UE, User Equipment) 101 passes through circuit domain access network (such as BSS or RNS) 102 and signaling adaptation
Equipment 103 is linked into unified IP kernel heart net 104, and signaling adaptation device 103 plays necessary Signalling conversion effect, all
Business is provided by unified IP kernel heart net 104.
Fig. 2 is the Organization Chart that CS accesses unified IP kernel heart net, as shown in Fig. 2 CS accesses the frame of unified IP kernel heart net
Structure includes following network element：
User equipment 201, base station controller (BSC, Base Station Controller) or radio network controller
(RNC, Radio Network Controller) 202, access gateway (AG, Access Gateway) 203 and integrated service control
Function (ISCF, Integrated Service Control Function) entity 204 processed；Wherein, BSC and/or RNC are used for
Realize the functions such as user's access and the management of Radio Resource and control in CS domains.Interface between BSC and AG203 is using base station
System application obscure portions (BSAGP, Base StationSystem Application Part) signaling, between RNC and AG203
Interface is believed using Radio Access Network Application Part (RANAP, Radio Access Network Application Part)
Order, BSAGP and RANAP signalings are referred to as CS access signalings.Interface between AG203 and BSC and/or RNC accesses letter using CS
Make and being communicated, the interface between ISCF is communicated using Session Initiation Protocol signaling, AG203 realizes that CS access signalings and SIP disappear
Translation function between breath.In addition, AG203 be also equipped with setting up the carrying of medium surface, realize Media Stream the work(such as continue and handle
Energy.ISCF 204 is mainly used in the functions such as mobile management, business route, Call- Control1, Service control, data storage, and it can
To be realized by one or more functions entity.UE 201 is linked into AG 203 by BSC or RNC, AG203 receive BSC or
It is converted into SIP signalings after the CS access signalings that RNC is sent and is sent to ISCF204, now AG is equivalent to serving as user's generation
Reason, ISCF204 is linked into instead of user equipment 201, carries out business route and Call- Control1 by ISCF204, thus user UE201
It can be set up with remote subscriber and connect and converse.
In a wireless communication system, when UE from a cell (coverage for referring to base station or base station) is moved to another
During cell, need to carry out channel switching to not interrupt communication.
Same RNC (or BSC) whether is according to user before and after switching, switching can be divided into cutting for RNC (or BSC) inside
Change and across RNC (or BSC) switching.Switching internal RNC (or BSC) is only needed to be completed by RNC (or BSC), and core net is not joined
With processing, and core net is then needed also to carry out corresponding service switchover processing across RNC (or BSC) switching.For all across RNC
With the service switchover across BSC, it is RANAP or BSSAP to differ only in access signaling, and the place of the service switchover of core-network side
Manage logic all identical.
Below by taking the switching across RNC as an example (similar across BSC hand-off process), existing switching flow and presence are elaborated
The problem of.
Fig. 3 is in the prior art across RNC switching flow figure, as shown in figure 3, UE1 is the user terminal switched,
UE2 is the user terminal conversed with UE1, and source RNC is the RNC of user's access before switching, and Target RNC is that user will switch
The RNC arrived, source AG are the AG of source network before user's switching, and target AG is the AG for the objective network that user will be switched to.Business
Scene is that UEl is switched to Target RNC from source RNC in UEl and UE2 communication process.The above-mentioned switching flow across RNC is specifically included
Following steps：
Step 301：UE sends measurement report (Measurement Report) to source RNC.
Step 302：Source RNC judges that UEl needs to switch over according to measurement report.
Step 303：Source RNC sends handover request (RELOCATION REQUIRED) to source AG.
Step 304：Handover request is simultaneously converted into call transfer request (REFER) and is sent to by source AG selection targets AG
ISCF.Source AG selection targets AG mode can be according to target cell information and operator's configuration strategy.The call forwarding please
It is the target location to be switched to seek the address parameter carried in destination address (Refer-To) header field that contact is required in message
Area identifies (Target LAI), and method (method) parameter is HANDOVER, due to HANDOVER and be not belonging in method it is fixed
The standard method title of justice, it is therefore desirable to be extended to method parameters.In addition, being carried in the handover request that source AG is received
Parameter necessary to switching, contains switch reasons, switching type, cell-of-origin, Target cell etc..Above-mentioned handoff parameter is also carried
Be sent to ISCF in REFER message, these parameters carry mode have many kinds, refer header fields can be extended or
Person is carried in REFER Session Description Protocol (SDP, SessionDescription Protocol), passes through extensible markup
Language (XML, Extensible MarkupLanguage) extension carrying etc..
Step 305：ISCF is received after REFER to source AG times call transfer request received messages (202Accepted).ISCF
HANDOVER values in method parameters in REFER message can determine that the message is handover request.
Step 306：REFER message is forwarded it to target AG by ISCF.
Step 307：Target AG is received after REFER to ISCF times call transfer request received messages (202Accepted).
Step 308：Target AG is that switching terminal reserves resource, rear send handover request (RELOCATION to Target RNC
REQUEST)。
Step 309：Target RNC carries out access network resource reservation procedure, is that UE1 accesses the third generation (3G, 3rd from Target RNC
Generation) the corresponding Radio Resource of network allocation.Target RNC sends switching request response to target AG afterwards
(RELOCATION REQUEST ACK)。
Step 310：Target AG sends a notification message (NOTIFY) to ISCF, notifies that ISCF switchings are ready.
Step 311：Confirmation message (200OK) is returned after ISCF is notified.
Step 312：ISCF initiates calling to target AG and invites (INVITE), and UE2 media information is carried in sdp.
Step 313：Target AG by the information updating of distant end media face be UE2 media information, it is rear to ISCF send response
Local terminal media information SDP1 is carried in message (200OK), message.
Step 314：ISCF sends response confirmation message (ACK) to target AG.
Step 315：ISCF conversates description information negotiations process with UE2, and UE2 is by the distant end media information updating of oneself
For the media information in target AG SDP1.
Step 316：ISCF sends a notification message (NOTIFY) to source AG, notifies that AG switchings in source are ready.In the message
Notification event is that switching is ready, and this needs to be extended the event of notification message, it is supported that switching is ready
Notification event.
Step 317：Confirmation message (200OK) is returned after source AG is notified.
Step 318：Source AG sends switching command (Relocation Command) to source RNC.
Step 319：Source RNC sends switching command to UE1.
Step 320：UE1 switches to Target RNC, and UE1 starts access target RNC Radio Resource.
Step 321：Target RNC is detected after UE1, and switching probe message (Relocation is sent to target AG
Detect)。
Step 322：Target RNC is received after the handover success message of UE1 transmissions, and handoff completion message is sent to target AG
(Relocation Complete)。
Step 323：Target AG sends a notification message (NOTIFY) to ISCF, notifies ISCF switchings to complete.In the message
Notification event is that switching is completed, and this needs to be extended the event of notification message, the notification event for making it support switching to complete.
Step 324：After the notified message of ISCF, confirmation message (200OK) is returned to target AG.
Step 325：ISCF forwards notification message (NOTIFY) to source AG, notifies AG switchings in source to complete.
Step 326：After the notified message of source AG, confirmation message (200OK) is returned to ISCF.
Step 327：Source AG notifies the link of source RNC release signalings and bearing resource.
By said process, UE1 completes the switching from source RNC to Target RNC.
Though prior art can complete basic service switchover, it there is problems：
Process messages quantity is excessive, and flow interaction is complicated.Be in the prior art by the switching of ISCF control core nets,
ISCF also needs to carry out SDP associations with target AG and UE2 after notifying target AG to switch over processing (step 306~step 311)
Business's (step 312~step 315).This have impact on the treatment effeciency of system.
ISCF and target AG SDP renewal processes may result in switching vibration.It is ISCF in the prior art first by target
AG distant end media face information reconciliation is UE2 SDP (step 306~step 307), then carries out distant end media face renewal to UE2.
UE2, which is carried out medium surface to update, to be held consultation (step 315) using target AG SDP and UE2, and this may result in UE2 weights
New one new port of application is used to communicate with switching terminal, and now UE2 medium surface information will change, and this will cause mesh
The UE2 consulted before mark AG SDP is invalid, subsequently also needs to carry out matchmaker with target AG again with medium surface information new UE2 again
Dignity is consulted, that is, result in switching oscillation problem.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of switching method of spanning across wireless network controller and be
System, can quickly and easily realize UE across RNC switching.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of switching method of spanning across wireless network controller, including：
Source AG is received after source RNC handover request, notifies target AG to be that to be switched UE prepares resource by sip message；
The target AG prepares resource for the to be switched UE, the carrying set up between the source AG, and notifies described
AG switchings in source are ready；
The source AG notifies the to be switched UE to be switched to objective network.
Preferably, the relevant parameter and/or switching mark of switching are carried in the sip message.
Preferably, the relevant parameter of switching is carried in the sip message and/or switches mark and is specially：
The relevant parameter and/or switching mark of switching are carried in the message body of the sip message.
Preferably, the relevant parameter of the switching includes information, the source AG branch of switching target small area and Target RNC
The coding/decoding information that the media coding/decoding information and current business held are used.
Preferably, the relevant parameter of switching is carried in the sip message and/or switches mark and is specially：
Carrying switching mark in the message header of the sip message.
Preferably, the sip message is REFER message, or INVITE message.
Preferably, carrying switching mark is specially in the message header of the sip message：
For the REFER message, switching mark be carried on the REFER message Route header fields or
In Request-URI header fields.
Preferably, methods described also includes：
The target AG is received after the switching sip message that the source AG is sent, and the switching mark in sip message is true
Surely switching is needed, handover request is sent to the Target RNC；Receive after the switching request response that the Target RNC is sent, lead to
Crossing sip message notifies the source AG switchings to be ready to complete；Wherein, it is NOTIFY message or 183 message to notify sip message.
Preferably, the carrying that the target AG is set up between the source AG is specially：
The source AG is received after the handover request or received after the NOTIFY message or 183 message, is passed through
The IP bearer connections that INVITE message is set up between the target AG.
Preferably, methods described also includes：The target AG is received after the handoff completion message of the Target RNC, is led to
Crossing sip message notifies the source AG switchings to complete, wherein, the sip message for notice is notification message NOTIFY or response
Message 200OK.
A kind of switching system of spanning across wireless network controller, applied in wireless communication system, the switching system includes
Source AG, source RNC, Target RNC, target AG and to be switched UE, wherein：
After source AG, the handover request for receiving source RNC, target AG is notified to prepare for be switched UE by sip message
Resource；And, after the ready notice of switching for receiving target AG, notify the to be switched UE to be switched to objective network；
The target AG, is that the to be switched UE prepares resource for receiving after the sip message, set up with it is described
Carrying between the AG of source, and notify that the source AG switchings are ready.
Preferably, the relevant parameter and/or switching mark of switching are carried in the sip message.
Preferably, the relevant parameter and/or switching mark of switching are carried in the message body of the sip message, wherein, it is described
The relevant parameter of switching includes information, the media coding/decoding information of source AG supports of switching target small area and Target RNC
And the coding/decoding information that current business is used.
Preferably, carrying switching mark in the message header of the sip message.
Preferably, the sip message is transfer request REFER message, or calls invitation INVITE message；Wherein, it is described
Carrying switching mark is specially in the message header of sip message：For the REFER message, the switching mark is carried on described
In the Route header fields or Request-URI header fields of REFER message.
Preferably, the target AG is after the switching sip message that the source AG is sent is received, according in sip message
Switching mark determination needs switching, and handover request is sent to the Target RNC；And, receiving what the Target RNC was sent
After switching request response, the source AG switchings are notified to be ready to complete by sip message；Wherein, it is notification message to notify sip message
NOTIFY or call proceeding message 183.
Preferably, the source AG is received after the handover request or received after the NOTIFY message or 183 message,
The IP bearer connections set up by INVITE message between the target AG.
In the present invention, after source AG receives source RNC handover request, target AG is notified to be to be switched by sip message
UE prepares resource；Receive after sip message, target AG is that to be switched UE prepares resource, and the carrying set up between the AG of source, it
Notify that AG switchings in source are ready afterwards；Source AG notifies to be switched UE to be switched to objective network.Relative to prior art, present invention tool
There are following effects：The present invention switches over control by source AG, and handover request thereby simplify disappearing for service switchover without ISCF
Cease flow；Media Stream after present invention switching is anchored on the AG of source, eliminate in the prior art ISCF and target SGW with
And the UE of to be switched UE opposite ends carries out the process of SDP negotiation, further simplify message flow, improves switching efficiency, also keep away
The defect of switching vibration is exempted from.
Brief description of the drawings
Fig. 1 shows the application scenarios schematic diagram that unified IP kernel heart net is linked into using CS access ways；
Fig. 2 is the Organization Chart that CS accesses unified IP kernel heart net；
Fig. 3 is in the prior art across RNC switching flow figure；
Fig. 4 is the flow chart of the switching method of the spanning across wireless network controller of the embodiment of the present invention one；
Fig. 5 is the flow chart of the switching method of the spanning across wireless network controller of the embodiment of the present invention two.
Embodiment
The basic thought of the present invention is that after source AG receives source RNC handover request, target is notified by sip message
AG is that to be switched UE prepares resource；Receive after sip message, target AG be to be switched UE prepare resource, and set up with source AG it
Between carrying, afterwards notify source AG switching it is ready；Source AG notifies to be switched UE to be switched to objective network.
It is by the following examples and referring to the drawings, right for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is further described.
Fig. 4 is the flow chart of the switching method of the spanning across wireless network controller of the embodiment of the present invention one, as shown in figure 4, this
The switching method of example spanning across wireless network controller is described in UE1 and UE2 communication process, and UE1 is switched to target from source RNC
RNC switching flow, specifically includes following steps：
Step 401：UE sends measurement report (Measurement Report) to source RNC.
Step 402：Source RNC judges that UE1 needs to switch over according to measurement report.
Step 403：Source RNC sends handover request (RELOCATION REQUIRED) message to source AG.
Step 404：Source AG is received after handover request message, and selection target AG simultaneously sets up IP bearer connections with target AG.
Source AG first for set up with target AG session and reserved media face resource, rear send calling to target AG and invite (INVITE)
Switching mark is carried in message, INVITE message.The mode that INVITE message carries switching mark can be by route heads
Method parameters are extended and realized in domain, for example, can use following form, route：Destination address；Method=
handover.The mode that INVITE message carries switching mark can also be by entering to the parameter in Request-URI header fields
Row extends and realized, for example, can use following form：Destination address；Method=handover.Thus target AG can determine that
Subsequently to switch over processing.Other suitable methods can certainly be used.In addition, being carried in the handover request that source AG is received
Some other switching necessary to parameter be carried in INVITE message and be sent to target AG, these parameter carrying modes are not
Limit, can be extended to INVITE header fields and carry above-mentioned parameter, these parameters can also be carried in INVITE SDP
Carried by XML.In addition, the medium surface information that source AG reserves resource for target AG is also carried in the SDP of the INVITE message,
It is referred to as SDP1 for convenience of description.
Step 405：Target AG receive after calling invitation message according to switching mark judge the INVITE message for switching
Request message.Target AG reserves the medium surface resource of local terminal, and is the media information in SDP2 by the information updating of distant end media face,
The handoff parameter in the calling invitation message received is changed into handover request (RELOCATION REQUEST) afterwards
Handoff parameter, and send handover request message to Target RNC.
Step 406：Target RNC carries out access network resource reservation procedure, is that UE1 divides from Target RNC access 3G network in the future
With corresponding resource.Target RNC sends switching request response (RELOCATION REQUEST ACK) message to target AG afterwards.
Step 407：Target AG is received after handover request ack message to source AG transmission call progress (183call
Progressing) message, and the medium surface information of local terminal is carried in sdp.
Step 408：Source AG, which is received, understands that switching is ready after call proceeding message, then send and switch to source RNC
Order (Relocation Command), while being target AG in call progress by the distant end media face information updating of itself
SDP information.
Step 409：Source RNC sends switching command to UE1.
Step 410：UE1 switches to Target RNC, and UE1 starts access target RNC Radio Resource.
Step 411：Target RNC is detected after UE1, and sending switching detection (RelocationDetect) to target AG disappears
Breath.
Step 412：Target RNC is received after the handover success message of UE1 transmissions, and sending switching to target AG completes
(Relocation Complete) message.
Step 413：Target AG is received after handoff completion message, and response (200OK) message is sent to source AG.
Step 414：Source AG is received after response message, it is known that switching has been completed, and source AG is responded to target AG and answered confirmation
(ACK) message.
Step 415：Source AG notifies the user terminal to send out by sip message to source integrated service control function ISCF
Raw switching, and notify source RNC release signalings link and bearing resource.
So far, switching is completed.Subsequent media stream is all anchored on the AG of source, and opposite end is forwarded to by source AG.For example, UE1 is sent out
The path that Media Stream to UE2 passes through is：UE1 to target AG is to source AG to UE2.
Fig. 5 is the flow chart of the switching method of the spanning across wireless network controller of the embodiment of the present invention two, as shown in figure 5, this
The switching method of example spanning across wireless network controller is described in UE1 and UE2 communication process, and UE1 is switched to target from source RNC
RNC switching flow, specifically includes following steps：
Step 501：UE sends measurement report (Measurement Report) to source RNC.
Step 502：Source RNC judges that UE1 needs to switch over according to measurement report.
Step 503：Source RNC sends handover request (RELOCATION REQUIRED) message to source AG.
Step 504：The handover request message received is converted into transfer request (REFER) message by source AG, and is sent to
Target AG, target AG address can be obtained according to relevant parameter from operator's configuration.Contact is required in the REFER message
The address parameter carried in destination address (Refer-To) header field is the target location area to be switched to mark (target LAI),
Method (method) parameter is HANDOVER.Due to HANDOVER and the standard method title defined in method is not belonging to, because
This needs to be extended method parameters.The HANDOVER is identified as switching, and subsequent message recipient can judge this accordingly
Message indicates for switching.In addition, parameter necessary to some other switching carried in the handover request that source AG is received is also carried
Target AG is sent in REFER message, the mode that these parameters are carried uses bearing mode of the prior art, for example
REFER header fields can be extended and carried, XML extensions in REFER SDP can also be carried on and carried.
Step 505：Target AG is received after REFER message to source AG times transfer request received messages (202Accepted).
Step 506：Target AG is received after transfer request message, judges the transfer request message to cut according to switching mark
Change request.Handoff parameter in the transfer request message received is changed into handover request (RELOCATION by target AG
REQUEST the handoff parameter in), and send handover request to Target RNC.
Step 507：Target RNC carries out access network resource reservation procedure, is that UE1 divides from Target RNC access 3G network in the future
With corresponding resource.Target RNC sends switching request response (RELOCATION REQUEST ACK) to target AG afterwards.
Step 508：Target AG can judge that source AG is cut after the handover request ack message of Target RNC transmission is received
Change ready, target AG sends a notification message (NOTIFY) to source AG, notify that AG switchings in source are ready.
Step 509：Backward target AG notified source AG returns notification acknowledgement (200OK).
Step 510：Source AG starts to set up conversation procedure with target AG.Source AG provides to set up session reserved media face first
Source, it is rear to target AG send calling invite request (INVITE).It is that target AG is pre- that source AG is carried in the SDP of the INVITE message
The medium surface information for the resource stayed, is referred to as SDP1 for convenience of description.
Step 511：Target AG is received and local terminal medium surface resource is reserved after call request, and by the information updating of distant end media face
For the media information in SDP2, response (200OK) message then is sent to source AG, and carries the medium surface letter of local terminal in sdp
Breath, subsequent source AG receives the message and would know that switching is ready.
Step 512：Source AG receive after response message by the distant end media face information updating of oneself be response message in target
AG SDP information, it is rear to target AG send response confirm (ACK) message.
Step 513：Source AG sends switching command (Relocation Command) to source RNC.
Step 514：Source RNC sends switching command to UE1.
Step 515：UE1 switches to Target RNC, and UE1 starts access target RNC Radio Resource.
Step 516：Target RNC is detected after UE1, and sending switching detection (RelocationDetect) to target AG disappears
Breath.
Step 517：Target RNC is received after the handover success message of UE1 transmissions, and sending switching to target AG completes
(Relocation Complete) message.
Step 518：Target AG is received after handoff completion message, is sent to source AG and is notified (NOTIFY) message, notifies it to cut
Change and completed.
Step 519：After the notified message of source AG, it is known that switching has been completed, source AG returns Notification Validation to target AG
(200OK) message.
Step 520：Source AG notifies the user terminal to send out by sip message to source integrated service control function ISCF
Raw switching, and notify source RNC release signalings link and bearing resource.
So far, switching is completed.Subsequent media stream is anchored on the AG of source, and opposite end is forwarded to by source AG.For example, UE1
The path for issuing UE2 Media Stream process is：UE1 to target AG is to source AG to UE2.
The present invention describes a kind of switching system of spanning across wireless network controller simultaneously, applied in wireless communication system,
The switching system includes source AG, source RNC, Target RNC, target AG and to be switched UE.The spanning across wireless network controller of the present invention
Switching system be to be proposed on the basis of existing network system, i.e. the structure with existing network system is identical, institute
Unlike, the function of being realized between said network element, and in the processing and existing network system of the message of correlation switching
Respective network elements it is different, it is described below：In the switching system of the spanning across wireless network controller of the present invention：
After source AG, the handover request for receiving source RNC, target AG is notified to prepare for be switched UE by sip message
Resource；And, after the ready notice of switching for receiving target AG, notify the to be switched UE to be switched to objective network；
The target AG, is that the to be switched UE prepares resource for receiving after the sip message, set up with it is described
Carrying between the AG of source, and notify that the source AG switchings are ready.
The relevant parameter and/or switching mark of switching are carried in above-mentioned sip message.
The relevant parameter and/or switching mark of switching are carried in the message body of above-mentioned sip message, wherein, the switching
Media coding/decoding information and work as that information of the relevant parameter including switching target small area and Target RNC, the source AG are supported
The coding/decoding information that preceding business is used.
Or, carrying switching mark in the message header of above-mentioned sip message.
Above-mentioned sip message is REFER message, or INVITE message；Wherein, carry and cut in the message header of the sip message
Dehorn is known：For the REFER message, switching mark be carried on the REFER message Route header fields or
In Request-URI header fields.
Above-mentioned target AG is after the switching sip message that the source AG is sent is received, the switching mark in sip message
It is determined that needing switching, handover request is sent to the Target RNC；And, receiving the handover request that the Target RNC is sent
After response, the source AG switchings are notified to be ready to complete by sip message；Wherein, notify sip message be notification message NOTIFY or
Call proceeding message 183.
Above-mentioned source AG is received after the handover request or received after the NOTIFY message or 183 message, is passed through
The IP bearer connections that INVITE message is set up between the target AG.
The correlation function of other network elements, can combine the associated description in Fig. 4 and Fig. 5 in the system of the cancellation switching of the present invention
And understand.The present invention is no longer repeated one by one.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (15)
1. a kind of switching method of spanning across wireless network controller, it is characterised in that methods described includes：
Source access gateway AG is received after source radio network controller RNC handover request, passes through session initiation protocol sip message
It is that to be switched user equipment (UE) prepares resource to notify target AG；
The target AG prepares resource for the to be switched UE, the carrying set up between the source AG, and notifies the source AG
Switching is ready；
The source AG notifies the to be switched UE to be switched to objective network；
The relevant parameter and/or switching mark of switching are carried in the sip message；
Destination address is carried in the switching mark.
2. according to the method described in claim 1, it is characterised in that carried in the sip message switching relevant parameter and/
Or switching mark is specially：
The relevant parameter and/or switching mark of switching are carried in the message body of the sip message.
3. method according to claim 1 or 2, it is characterised in that it is small that the relevant parameter of the switching includes switching target
The coding/decoding information that the media coding/decoding information and current business that the information of area and Target RNC, the source AG are supported are used.
4. according to the method described in claim 1, it is characterised in that carried in the sip message switching relevant parameter and/
Or switching mark is specially：
Carrying switching mark in the message header of the sip message.
5. the method according to claim 1,2 or 4, it is characterised in that the sip message is transfer request REFER message,
Or INVITE message is invited in calling.
6. method according to claim 5, it is characterised in that carrying switching mark tool in the message header of the sip message
Body is：
For the REFER message, the switching mark is carried on the Route header fields or Request-URI of the REFER message
In header field.
7. method according to claim 3, it is characterised in that methods described also includes：
The target AG is received after the switching sip message that the source AG is sent, and the switching mark in sip message determines need
Switch, handover request is sent to the Target RNC；Receive after the switching request response that the Target RNC is sent, pass through
Sip message notifies the source AG switchings to be ready to complete；Wherein, it is that notification message NOTIFY or call progress disappear to notify sip message
Breath 183.
8. method according to claim 7, it is characterised in that the carrying tool that the target AG is set up between the source AG
Body is：
The source AG is received after the handover request or received after the NOTIFY message or 183 message, passes through INVITE
The IP bearer connections that message is set up between the target AG.
9. method according to claim 5, it is characterised in that methods described also includes：The target AG receives target
After RNC handoff completion message, the source AG switchings are notified to complete by sip message, wherein, the sip message for notice is
Notification message NOTIFY or response message 200OK.
10. a kind of switching system of spanning across wireless network controller, applied in wireless communication system, the switching system includes source
AG, source RNC, Target RNC, target AG and to be switched UE, it is characterised in that：
After source AG, the handover request for receiving source RNC, target AG is notified to be that to be switched UE prepares resource by sip message；
And, after the ready notice of switching for receiving target AG, notify the to be switched UE to be switched to objective network；
The target AG, for receiving after the sip message, is that the to be switched UE prepares resource, sets up and the source AG
Between carrying, and notify that source AG switching is ready；
The relevant parameter and/or switching mark of switching are carried in the sip message；
Destination address is carried in the switching mark.
11. system according to claim 10, it is characterised in that the phase of switching is carried in the message body of the sip message
Related parameter and/or switching mark, wherein, information of the relevant parameter including switching target small area and Target RNC of the switching,
The coding/decoding information that the media coding/decoding information and current business that the source AG is supported are used.
12. system according to claim 10, it is characterised in that carrying switching mark in the message header of the sip message.
13. the system according to any one of claim 10 to 12, it is characterised in that the sip message is transfer request
INVITE message is invited in REFER message, or calling；Wherein, carrying switching mark is specially in the message header of the sip message：
For the REFER message, the switching mark is carried on the Route header fields or Request-URI header fields of the REFER message
In.
14. system according to claim 10, it is characterised in that：
The target AG is after the switching sip message that the source AG is sent is received, and the switching mark in sip message is determined
Switching is needed, handover request is sent to the Target RNC；And, receiving the switching request response that the Target RNC is sent
Afterwards, the source AG switchings are notified to be ready to complete by sip message；Wherein, it is notification message NOTIFY or calling to notify sip message
Progress message 183.
15. system according to claim 14, it is characterised in that the source AG is received after the handover request or received
To after the NOTIFY message or 183 message, the IP bearer connections set up by INVITE message between the target AG.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110034011.8A CN102625382B (en) | 2011-01-31 | 2011-01-31 | The switching method and system of spanning across wireless network controller |
| PCT/CN2012/070624 WO2012103791A1 (en) | 2011-01-31 | 2012-01-19 | Cross-radio network controller switching method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110034011.8A CN102625382B (en) | 2011-01-31 | 2011-01-31 | The switching method and system of spanning across wireless network controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102625382A CN102625382A (en) | 2012-08-01 |
| CN102625382B true CN102625382B (en) | 2017-08-11 |
Family
ID=46565021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110034011.8A Active CN102625382B (en) | 2011-01-31 | 2011-01-31 | The switching method and system of spanning across wireless network controller |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102625382B (en) |
| WO (1) | WO2012103791A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545234A (en) * | 2003-11-14 | 2004-11-10 | 中兴通讯股份有限公司 | Switch implementing method of mobile softswitch network |
| CN1933444A (en) * | 2005-09-14 | 2007-03-21 | 北京三星通信技术研究有限公司 | Method for supporting user equipment transferability in LTE system |
| CN101127740A (en) * | 2007-09-11 | 2008-02-20 | 中兴通讯股份有限公司 | A method for supporting inter-office mixing connection |
| CN101128023A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for establishing switching carrier |
| CN101170807A (en) * | 2006-10-23 | 2008-04-30 | 华为技术有限公司 | A carrier update method, system and device in switching process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101221898B1 (en) * | 2005-06-14 | 2013-01-15 | 엘지전자 주식회사 | Method for signaling in mobile communication system |
| CN101536601B (en) * | 2006-10-05 | 2012-05-30 | 富士通株式会社 | Call connection processing method and message transmitting and receiving proxy device |
| CN101472306B (en) * | 2007-12-29 | 2012-06-20 | 华为技术有限公司 | Method, system and device for switching between APs |
| CN101848449B (en) * | 2009-03-24 | 2013-12-04 | 华为技术有限公司 | Method, device and system for user management and state maintenance |
-
2011
- 2011-01-31 CN CN201110034011.8A patent/CN102625382B/en active Active
-
2012
- 2012-01-19 WO PCT/CN2012/070624 patent/WO2012103791A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545234A (en) * | 2003-11-14 | 2004-11-10 | 中兴通讯股份有限公司 | Switch implementing method of mobile softswitch network |
| CN1933444A (en) * | 2005-09-14 | 2007-03-21 | 北京三星通信技术研究有限公司 | Method for supporting user equipment transferability in LTE system |
| CN101128023A (en) * | 2006-08-17 | 2008-02-20 | 华为技术有限公司 | A method for establishing switching carrier |
| CN101170807A (en) * | 2006-10-23 | 2008-04-30 | 华为技术有限公司 | A carrier update method, system and device in switching process |
| CN101127740A (en) * | 2007-09-11 | 2008-02-20 | 中兴通讯股份有限公司 | A method for supporting inter-office mixing connection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102625382A (en) | 2012-08-01 |
| WO2012103791A1 (en) | 2012-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104247501B (en) | The SRVCC switchings of calling between access net with the selection of efficient media gateway | |
| US7983679B2 (en) | Method and apparatus for inter-system active handoff of a hybrid subscriber unit | |
| US7697480B2 (en) | Method and apparatus for inter-system active handoff of a hybrid subscriber unit | |
| JP4763723B2 (en) | System and method for call handoff between circuit switched and packet switched data wireless networks | |
| US8442005B2 (en) | Seamless handoff across heterogeneous access networks using a handoff controller in a service control point | |
| CN104094638B (en) | Urgent call switching from circuit switching to packet switched access network | |
| JP5694348B2 (en) | Optimization of handover delay | |
| US20100195616A1 (en) | Handover From Circuit Switched Over Packet Switched Domain to Circuit Switched Domain | |
| JP2011193504A (en) | Wireless communication method and system for supporting call continuity | |
| WO2009015525A1 (en) | A method for switching the session control path of ip multimedia core network subsystem centralized service | |
| JP2007060181A (en) | Mobile communication system, exchange station server, mobile terminal, and handover method employed for them | |
| CN104954375B (en) | Method and apparatus for improving conversation continuity | |
| CN104918292B (en) | A kind of service control method and system | |
| CN102769880B (en) | The changing method and system in single wireless voice calling continuity domain | |
| CN102761915B (en) | The processing method and AS of session switching occur for a kind of Calling Side | |
| WO2008151481A1 (en) | A method for centralized controlling the service to implement the terminal call in a ip multimedia core network subsystem | |
| CN101170758B (en) | User device and its switching method between different IP networks | |
| CN102724723B (en) | Control switching method and system based on IMS | |
| CN102625382B (en) | The switching method and system of spanning across wireless network controller | |
| CN102625380B (en) | Changing method and system | |
| CN102625397A (en) | Handover method and system thereof | |
| CN103118407B (en) | A kind of method and system for realizing reverse single-standby service continuity | |
| CN102625381B (en) | Cancel the method and system of switching | |
| CN108574670A (en) | Switching method and system of a kind of IMS call to circuit domain | |
| KR20090016927A (en) | Apparatus and method for domain selection in mobile communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201116 Address after: No.3, Tonghai Road, chuegang Town, Rudong County, Nantong City, Jiangsu Province, 226400 Patentee after: Rudong County Shengtai new rural development and Construction Co., Ltd Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corp. |
|
| TR01 | Transfer of patent right |