CN101166302B - Service switching method and system - Google Patents
Service switching method and system Download PDFInfo
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- CN101166302B CN101166302B CN200610150532A CN200610150532A CN101166302B CN 101166302 B CN101166302 B CN 101166302B CN 200610150532 A CN200610150532 A CN 200610150532A CN 200610150532 A CN200610150532 A CN 200610150532A CN 101166302 B CN101166302 B CN 101166302B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The method includes steps: S202, in call session between calling party (CIP) and called party (CEP), when receiving signal tone for switching services from equipment at called user, the mobile station at CEP carries out service negotiation and hard switching through the base station controller (BSC) at CEP to establish connection between CEP and the network intercommunication control function module (NICFM) at CEP side; S204, mobile switching center (MSC) at CEP initiates request for switching load to MSC at CIP; S206,after receiving the request, MSC at CIP informs BSC at CIP to carry out switching service, and to establish connection between CIP and NICFM at CIP side so as to complete switching services. Without changing habit user uses, the invention implements function for switching IWF services between voice service and facsimile service so as to be convenient for user to do operations.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of business switch method and system.
Background technology
In fixed communication network, realization switches to the facsimile service method from speech business: the called fax of calling user dials PSTN number, connect back calling subscriber's advise called subscriber and need fax, on facsimile machine, send facsimile control signal by the called subscriber, Calling Side sends fax by the facsimile transmission key after receiving facsimile control signal, finishes voice to the service switch process of faxing.
In mobile communications network, be to realize IWF between wireless network and other network by network interworking function module (Inter Working Function is called for short IWF).Wherein, IWF is a kind of equipment in the wireless network, it supports the circuit domain data business communicating function of wireless network and other network (as PSTN, ISDN, Internet, other PLMN), and it adopts asynchronous data to carry out long-range access, Email visit, Intranet access, ISP access, common data library searching, two business such as data terminal interconnect.
Position according to the IWF resource can be divided into IWF CDMA IWF module (CAMA Interworking Function is called for short CIWF) and The Shared InterWorking Function module (Shared Interworking Function is called for short SIWF).By CIWF shown in Figure 1 and SIWF networking diagram as can be known, CIWF is based on the base station controller IWF function of (Base StationController is called for short BSC), and IWF equipment is connected on the BSC; SIWF is based on mobile switching centre's IWF function of (Mobile Switch Center is called for short MSC), and IWF equipment is connected on the MSC.
At present, IWF is mainly used in facsimile service.In CDMA mobile communication system, faxing mainly is to adopt the directly mode of fax.That is, behind caller input special prefix and called number, network side is directly set up facsimile service and is called out.But in actual applications, exist advanced lang sound business to carry out the demand of facsimile service then, main cause is:
1) with in once calling out, can't notify the other user to carry out to receive faxes preparation in advance, the other side's facsimile machine is not necessarily supported automated facsimile;
2) if be set to direct fax, then this number and facsimile machine can only if make a phone call, need be reset in order to facsimile service, troublesome poeration, and can't bring into play the function of voice call, circuit and utilization rate of equipment and installations are low.
In CDMA mobile communication system, before A mouth IPization, adopt time division multiplexing (Time Division Multiplexing is called for short TDM) carrying, there is encoding and decoding conversion (Transcoder is called for short TC) resource can detect the facsimile signal sound of core-network side on the BSC.Because present most of fixed stations do not support Calling Side to initiate the IWF service negotiation,, be used to initiate the professional change flow of IWF of caller from called CED signal so detect from called CED signal by the TC of BSC one side.That is to say, before A mouth IPization, the user can by with fixed network in voice to the method for operation identical operations method that facsimile service switches, finish the switching of voice to facsimile service.
But, after A mouth IPization, move on to MSC core net place on the TC resource, there has not been TC to detect resource among the BSC, so the facsimile signal that BSC can't detect voice when switching to fax; BSC just is forwarded to the wireless side message media gateway (Media Gateway is called for short MGW) after handling wireless protocols.And, when encode/decode-free (Transcoder FreeOperation is called for short TrFO)/long-range coding-decoding operation (Remote TranscoderOperation, abbreviation RTO) activation, no TC resource or TC resource be not in end office (EO), so end office (EO) possibly can't detect in the voice channel.That is to say that MGW because there is not the TC resource, switches to the facsimile signal that facsimile machine sends when faxing so can't detect voice under the situation of TrFO.At this moment, facsimile signal does not have the place to detect except outside the travelling carriage (MobileStation is called for short MS).Therefore, after A mouth IPization, voice are realized by following manner to the switching of facsimile service: can't initiate in the fixed station caller under the situation of professional change, the user initiates FLASH operation (hooking), consult by being with outer dialing to initiate a FAX, and need BSC and MSC to support the outer negotiation process of this band.
Wherein, the user by the Flash button on the facsimile machine realize hooking (hooking be phone under talking state, short time on-hook, and then the operation of off-hook) operation.The effect of the similar hooking of the effect of this Flash button.By the Flash button, can produce the hooking time (time span of common hooking is uncertain, and the hooking time that produces by the Flash button is compared to common hooking time standard of comparison) of a standard of comparison.
From the above description as can be known, after A mouth IPization, there are the following problems to the changing method of facsimile service for voice: realize the switching of voice to facsimile service by the hooking method, changed the old use habit of user, therefore brought the inconvenience of using to the user.In addition, utilize the hooking method to carry out the switching of voice to fax, it is lower to be embodied as power, because facsimile negotiation is to need to hold consultation in the certain hour, and user's operation is that difficulty satisfies this operation, causes success rate lower.
Summary of the invention
The objective of the invention is in the mobile communication system of CDMA IPization, realize the handoff functionality of speech business, and make the variation that the user can't sensing network, so the present invention proposes a kind of business switch method and system to the IWF business of facsimile service.
According to an aspect of the present invention, a kind of business switch method has been proposed.This method comprises: S202, during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from called subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of callee and callee's side; S204, callee's mobile switching centre initiates the carrying handoff request to calling party's mobile switching centre; After S206, calling party's mobile switching centre received the carrying handoff request, the base station controller of caller notification carried out business and switches, and set up the connection between the network interworking control function module of calling party and calling party's side, finished professional switching.
According to a further aspect in the invention, a kind of service switchover system has been proposed.This system comprises: the callee connects apparatus for establishing 602, be positioned at callee's side, be used for during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of callee and callee's side; Carrying handoff request apparatus for initiating 604 between callee and calling party, is used to make callee's mobile switching centre to initiate the carrying handoff request to calling party's mobile switching centre; The calling party connects apparatus for establishing 606, be positioned at calling party's side, be used for after calling party's mobile switching centre receives the carrying handoff request, the base station controller of caller notification carries out business and switches, set up the connection between the network interworking control function module of calling party and calling party's side, finish professional the switching.
By the present invention, realized under the cdma mobile communication environment, under the situation of A mouth IPization or IP core networkization, realize the handoff functionality of speech business, and do not change user's use habit to the IWF business of facsimile service, be very easy to user's operation.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block diagram that CIWF networking structure and SIWF networking structure are shown;
Fig. 2 is the flow chart that illustrates according to business switch method of the present invention;
Fig. 3 is the flow chart that illustrates according to the concrete steps of the step S202 of business switch method of the present invention;
Fig. 4 is the flow chart that illustrates according to the concrete steps of the step S206 of business switch method of the present invention;
Fig. 5 is the flow chart that the business switch method of specific embodiments of the invention is shown; And
Fig. 6 is the block diagram that illustrates according to service switchover system of the present invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
With reference to figure 2, illustrate according to business switch method of the present invention.This method comprises: S202, during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from called subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of callee and callee's side; S204, callee's mobile switching centre initiates the carrying handoff request to calling party's mobile switching centre; After S206, calling party's mobile switching centre received the carrying handoff request, the base station controller of caller notification carried out business and switches, and set up the connection between the network interworking control function module of calling party and calling party's side, finished professional switching.
Wherein, step S202 comprises (as shown in Figure 3): S2022, after callee's travelling carriage receives professional switching signal sound from called subscriber equipment, notifies callee's base station controller; S2024, callee's base station controller sends business request information to callee's travelling carriage, carries out service negotiation; S2026, callee's base station controller sends handoff request message to callee's mobile switching centre, carries out direct-cut operation, sets up being connected between the network interworking function module of callee and callee's side.
Wherein, step S204 is by at least a the finishing in the following method: the attribute description during the expansion Session Description Protocol is described, adopt description in the V152 agreement, and increase privately owned description in the expansion Session Description Protocol is described.
Wherein, step S206 comprises (as shown in Figure 4): S2062, and after the carrying handoff request was received by calling party's mobile switching centre, the base station controller of caller notification was initiated professional the switching; S2064, calling party's base station controller are after the travelling carriage by the calling party confirms professional the switching, and the mobile switching centre of caller notification carries out business switching, set up being connected of Interworking Function of calling party and calling party's side.
Wherein, the calling party is in identical end office (EO) or different end office (EO) with the callee.Above-mentioned business switch method is used for the switching from the speech business to the facsimile service.
Wherein, the carrying handoff request among the step S204 carries the fax attribute description.
Wherein, in step S2064, calling party's travelling carriage sends to it according to calling party's base station controller the switch indicating information that carries the facsimile service configuration record is switched business and is confirmed.
Wherein, all set up calling party and callee under the situation about being connected of network interworking function module, when the calling party was in identical end office (EO) with the callee, the business request information that callee and/or calling party's Media Gateway Controller receives according to the media gateway from callee and/or calling party's base station controller or callee and/or calling party was judged the fax direction; When the calling party is in different end office (EO) with the callee, callee and/or calling party's Media Gateway Controller according to whether receive the calling party and/whether the facsimile service switching judging local exchange of callee's indication is facsimile transmission side, or judges that according to the facsimile signal of Session Description Protocol extended description local exchange is fax initiator or recipient.
Particularly, with reference to figure 5, the handoff procedure from the speech business to the facsimile service that has used business switch method of the present invention is described:
1) both sides are carrying out voice call;
2) callee MS receives the CED sound that facsimile machine sends, and identifies this speech business and need switch facsimile service, sends message informing to called BSC and detects fax tone, and requested service switches;
3) called BSC sends Service Request message to called MS, initiates the service negotiation flow process;
4) called MS sends Service Response message for called BSC, accepts the facsimile data business option;
5) called BSC sends Handoff Required message to called MS C, initiates the direct-cut operation flow process, and Target cell is current Active Set, and business option is the facsimile data business;
6) called MS C finishes relevant treatment, sends HANDOFFRESPONSE message for same called BSC;
7) called BSC finishes the service channel that is established to called IWF network element;
8) called BSC returns HandoffRequest Ack message and gives called MS C;
9) called MS C inserts called IWF;
Because the callee side step 10) to 19 of next carrying out) identical, so omitted step 10) to 19 among Fig. 5 with flow process in the correlation technique) diagram.
10) called MS C sends Handoff Command message to called BSC;
11) called BSC sends general switch indicating information (UHDM message) to called MS, and carries the facsimile service configuration record;
12) called MS is returned acknowledgement message and is given called BSC;
13) called BSC sends Handoff Commenced message to called MS C, and notice called MS C travelling carriage begins to switch;
14) the called MS successful switch sends Handoff Completion message for called BSC to target traffic channel;
15) called BSC sends HandoffComplete message to called MS C;
16) called MS C sends Clear Command release source to called BSC;
17) called BSC sends Clear Complete message to called MS C after having discharged source;
18) called MS finish by called BSC and called IWF between the service surface Signalling exchange that switches to fax of voice;
19) called MS entered the facsimile service transmit data state after callee side was accomplished to the service surface Signalling exchange of called IWF;
20) called MS C initiates the bearing modification request to caller MSC, and carries fax attribute description (a=fax);
21) after caller MSC received, notice caller BSC initiated encoding and decoding and switches;
22) caller BSC sends Service Request message to caller MS, initiates the service negotiation flow process;
23) caller MS sends Service response message to caller BSC, accepts the facsimile data business option;
24) caller BSC sends the response message that encoding and decoding are switched to caller MSC;
25) caller BSC sends Handoff Required message to caller MSC, initiates the direct-cut operation flow process, and Target cell is current Active Set, and business option is the facsimile data business;
26) caller MSC finishes relevant treatment, sends HANDOFF RESPONSE message for same caller BSC;
27) caller BSC finishes the service channel that is established to caller IWF network element;
28) caller MSC inserts caller IWF;
29) caller BSC returns HandoffRequest Ack message and gives caller MSC;
30) caller MSC sends HandoffCommand message to caller BSC;
31) caller BSC sends general switch indicating information (UHDM message) for caller MS, carries the facsimile service configuration record;
32) caller MS returns acknowledgement message and gives caller BSC;
33) caller BSC begins to switch to caller MSC transmission HandoffCommenced message informing caller MSC travelling carriage;
34) caller MS successful switch sends HandoffCompletion message for caller BSC to target traffic channel;
35) caller BSC sends HandoffComplete message to caller MSC;
36) caller MSC sends Clear Command release source to caller BSC;
37) caller BSC sends Clear Complete message to caller MSC after having discharged source;
39) caller MS finish by caller BSC and caller IWF between the service surface Signalling exchange that switches to fax of voice;
40) caller MS entered the facsimile service transmit data state after Calling Side was accomplished to the service surface Signalling exchange of caller IWF;
41) after both sides IWF activated, facsimile service began to carry out.
Need to prove that said caller and the called caller that is meant fax and called in the above-mentioned steps are with the caller of voice and called irrelevant.
Wherein, the switching of the carrying in the core net is finished by following two kinds of methods:
1. the attribute description a=fax during expansion Session Description Protocol (Session Description Protocol, be called for short SDP) is described or take description in the V152 agreement.This mode is existing NGN technology, in cdma network, do not use, and for the intercommunication of compatible cdma network and NGN,, take the describing mode identical with NGN:
m＝audio?3456RTP/AVP?98
a＝fax
The perhaps description in the V152 agreement
m＝audio?3456RTP/AVP?98
a＝rtpmap:98PCMU/8000
a＝gpmd:98vbd＝yes
2. during expansion SDP describes, increase privately owned description.Wherein, fmtp is described below in the SDP agreement: " attribute=fmtp: the concrete parameter of form form ".Wherein, by define CED, CNG, V21flag in concrete parameter, the detected corresponding facsimile signal of indication between MGC judges it is fax caller or callee by playing a game.Wherein, CNG is meant the fax calling party; CED is meant the fax callee; V21flag is meant the at first detected fax calling party that is." a=fmtp:＜format〉＜format specific parameters〉" attribute allows the concrete parameter of special format (format) to transmit in the mode that a kind of SDP need not understand.But this special format must be to illustrate in the media description (m=):
m＝audio?3456RTP/AVP?98
a＝fax
a＝fmtp:98CED|CNG|V21flag
m＝audio?3456RTP/AVP?98
a＝rtpmap:98PCMU/8000
a＝gpmd:98vbd＝yes
a＝fmtp:98CED
Perhaps
a＝fmtp:98CNG
Perhaps
a＝fmtp:98V21flag
In sum, carry out business at MGC notice BSC and switch, expanded existing encoding and decoding switching flow.
After core net obtains the facsimile service indication, can notify originating switch to carry out business and switch, Notification Method is as mentioned above.When the MSC of end office (EO) receives professional handoff request, carry out business by encoding and decoding flow process (being not limited to this flow process) notice BSC and switch (switching to the facsimile service state), BSC notice MS carries out business and switches the flow process when follow-up flow process is the TDM interface with the A mouth.
Wherein, the processing of the fax direction when activating IWF for MGC is as follows: for intra-office, MGC can report signal to know the fax direction according to BSC/MGW, for interoffice, the MGC of end office (EO) can perhaps judge that according to the Fax signal (a=fmtp:98CED|CNG|V21flag) of SDP extended description local exchange is fax initiator or recipient according to whether being to receive whether the facsimile service switching judging local exchange of the indication of playing a game is facsimile transmission side (a=fax or a=gpmd:98ybd=yes).
With reference to figure 6, illustrate according to service switchover system of the present invention.This system comprises: the callee connects apparatus for establishing 602, be positioned at callee's side, be used for during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of callee and callee's side; Carrying handoff request apparatus for initiating 604 between callee and calling party, is used to make callee's mobile switching centre to initiate the carrying handoff request to calling party's mobile switching centre; The calling party connects apparatus for establishing 606, be positioned at calling party's side, be used for after calling party's mobile switching centre receives the carrying handoff request, the base station controller of caller notification carries out business and switches, set up the connection between the network interworking control function module of calling party and calling party's side, finish professional the switching.
Wherein, the callee connects apparatus for establishing and comprises: the professional switching notice module 6022 of callee, after being used for travelling carriage the callee and receiving professional switching signal sound, notify callee's base station controller from subscriber equipment; Callee's service negotiation module 6024 is used to make callee's base station controller to send business request information to callee's travelling carriage, carries out service negotiation; Callee's direct-cut operation module 6026 is used to make callee's base station controller to send handoff request message to callee's mobile switching centre, carries out direct-cut operation, sets up being connected between the network interworking function module of callee and callee's side.
Wherein, carrying handoff request apparatus for initiating carries switching by at least a in the following method: the attribute description during the expansion Session Description Protocol is described, adopt description in the V152 agreement, and increase privately owned description in the expansion Session Description Protocol is described.
Wherein, the calling party connects apparatus for establishing and comprises: the professional switching notice module 6062 of calling party, be used for after the carrying handoff request is received by calling party's mobile switching centre, and the base station controller of caller notification is initiated professional the switching; The professional handover module 6064 of calling party, be used for after calling party's base station controller is passing through calling party's professional switching of travelling carriage confirmation, the mobile switching centre of caller notification carries out business and switches, and sets up being connected of Interworking Function of calling party and calling party's side.
Wherein, the calling party is in identical end office (EO) or different end office (EO) with the callee.And this service switchover system is used for the switching from the speech business to the facsimile service.
Preferably, the carrying handoff request in the carrying handoff request apparatus for initiating carries the fax attribute description.
In the professional handover module of calling party, the switch indicating information that carries the facsimile service configuration record that calling party's travelling carriage sends to it according to calling party's base station controller is switched business and is confirmed.
All set up calling party and callee under the situation about being connected of network interworking function module, when the calling party was in identical end office (EO) with the callee, the business request information that callee and/or calling party's Media Gateway Controller receives according to the media gateway from callee and/or calling party's base station controller or callee and/or calling party was judged the fax direction; When the calling party is in different end office (EO) with the callee, callee and/or calling party's Media Gateway Controller according to whether receive the calling party and/whether the facsimile service switching judging local exchange of callee's indication is facsimile transmission side, or judges that according to the facsimile signal of Session Description Protocol extended description local exchange is fax initiator or recipient.
By above-mentioned explanation as can be known, in the voice call process, calling subscriber's advise called subscriber sends facsimile control signal and promptly sends the CED sound in Traffic Channel on terminal equipment (te).After the MS at called subscriber place detects the CED sound, notice BSC initiates service request, and the side that BSC is connected with MGC triggers switching flow, triggers the process of service negotiation in the side of eating dishes without rice or wine, be established to being connected of IWF with eating dishes without rice or wine at the A interface respectively, this moment, MGC notice IWF set up called mode.MGC can revise carrying this moment, until the calling subscriber place, then, Calling Side MGC notice BSC initiation business switches to fax.Follow-up flow process is identical with A mouth IPization flow process before.Thereby the calling and called user has set up the connection of IWF, begins to carry out facsimile service, has realized that voice switch to the business of fax.
By the present invention, realized under the cdma mobile communication environment, under the situation of A mouth IPization or IP core networkization, realize the handoff functionality of speech business, and do not change user's use habit to the IWF business of facsimile service, be very easy to user's operation.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. business switch method is characterized in that comprising:
S202, during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from called subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of described callee and described callee's side;
S204, callee's mobile switching centre initiates the carrying handoff request to calling party's mobile switching centre;
S206, after described calling party's mobile switching centre receives described carrying handoff request, notify described calling party's base station controller to carry out business and switch, set up the connection between the network interworking control function module of described calling party and described calling party's side, finish professional the switching.
2. business switch method according to claim 1 is characterized in that, described step S202 may further comprise the steps:
S2022 after described callee's travelling carriage receives described professional switching signal sound from described called subscriber equipment, notifies described callee's base station controller;
S2024, described callee's base station controller sends business request information to described callee's travelling carriage, carries out service negotiation;
S2026, described callee's base station controller sends handoff request message to described callee's mobile switching centre, carries out direct-cut operation, sets up being connected between the network interworking function module of described callee and described callee's side.
3. business switch method according to claim 1, it is characterized in that described step S204 is by at least a the finishing in the following method: the attribute description during the expansion Session Description Protocol is described, adopt description in the V152 agreement, and in the expansion Session Description Protocol is described, increase privately owned description.
4. business switch method according to claim 1 is characterized in that described step S206 comprises the following steps:
After S2062, described calling party's mobile switching centre receive described carrying handoff request, notify described calling party's base station controller to initiate professional the switching;
S2064, described calling party's base station controller is after the travelling carriage by described calling party confirms professional the switching, notify described calling party's mobile switching centre to carry out business and switch, set up being connected of Interworking Function of described calling party and described calling party's side.
5. according to claim 1,2,3 or 4 described business switch methods, it is characterized in that described calling party is in identical end office (EO) or different end office (EO) with described callee.
6. business switch method according to claim 5 is characterized in that, is used for the switching from the speech business to the facsimile service.
7. business switch method according to claim 6 is characterized in that, the described carrying handoff request among the described step S204 carries the fax attribute description.
8. business switch method according to claim 6, it is characterized in that, among the described step S2064, described calling party's travelling carriage sends to it according to described calling party's base station controller the switch indicating information that carries the facsimile service configuration record confirms described professional the switching.
9. business switch method according to claim 6 is characterized in that, all set up described calling party and described callee under the situation about being connected of described network interworking function module,
When described calling party was in identical end office (EO) with described callee, the business request information that callee and/or calling party's Media Gateway Controller receives according to the media gateway from described callee and/or calling party's base station controller or callee and/or calling party was judged the fax direction;
When described calling party is in different end office (EO) with described callee, whether described callee and/or calling party's Media Gateway Controller basis receives whether the facsimile service switching judging local exchange of described calling party and/or callee's indication is facsimile transmission side, or judges that according to the facsimile signal of Session Description Protocol extended description local exchange is fax initiator or recipient.
10. service switchover system is characterized in that comprising:
The callee connects apparatus for establishing, be positioned at callee's side, be used for during calling party and callee's conversation, when callee's travelling carriage receives professional switching signal sound from called subscriber equipment, base station controller by the callee carries out service negotiation and direct-cut operation, sets up the connection between the network interworking control function module of described callee and callee's side;
Carrying handoff request apparatus for initiating between callee and calling party, is used to make callee's mobile switching centre to initiate the carrying handoff request to calling party's mobile switching centre;
The calling party connects apparatus for establishing, be positioned at calling party's side, be used for after described calling party's mobile switching centre receives described carrying handoff request, notify described calling party's base station controller to carry out the business switching, set up the connection between the network interworking control function module of described calling party and calling party's side, finish professional the switching.
11. service switchover system according to claim 10 is characterized in that, described callee connects apparatus for establishing and comprises:
The professional switching notice module of callee after being used for travelling carriage described callee and receiving described professional switching signal sound from described subscriber equipment, is notified described callee's base station controller;
Callee's service negotiation module is used to make described callee's base station controller to send business request information to described callee's travelling carriage, carries out service negotiation;
Callee's direct-cut operation module is used to make described callee's base station controller to send handoff request message to described callee's mobile switching centre, carries out direct-cut operation, sets up being connected between the network interworking function module of described callee and described callee's side.
12. service switchover system according to claim 10, it is characterized in that described carrying handoff request apparatus for initiating carries switching by at least a in the following method: the attribute description during the expansion Session Description Protocol is described, adopt description in the V152 agreement, and in the expansion Session Description Protocol is described, increase privately owned description.
13. service switchover system according to claim 10 is characterized in that, described calling party connects apparatus for establishing and comprises:
The professional switching notice module of calling party is used for after described carrying handoff request is received by described calling party's mobile switching centre, notifies described calling party's base station controller to initiate professional the switching;
The professional handover module of calling party, be used for after described calling party's base station controller is passing through described calling party's professional switching of travelling carriage confirmation, notify described calling party's mobile switching centre to carry out business and switch, set up being connected of Interworking Function of described calling party and described calling party's side.
14., it is characterized in that described calling party is in identical end office (EO) or different end office (EO) with described callee according to claim 10,11,12 or 13 described service switchover systems.
15. service switchover system according to claim 14 is characterized in that, is used for the switching from the speech business to the facsimile service.
16. service switchover system according to claim 14 is characterized in that, the described carrying handoff request in the described carrying handoff request apparatus for initiating carries the fax attribute description.
17. service switchover system according to claim 14, it is characterized in that, in the professional handover module of described calling party, described calling party's travelling carriage confirms described professional the switching according to the switch indicating information that carries the facsimile service configuration record that described calling party's base station controller sends to it.
18. service switchover system according to claim 14 is characterized in that, all set up described calling party and described callee under the situation about being connected of described network interworking function module,
When described calling party was in identical end office (EO) with described callee, the business request information that callee and/or calling party's Media Gateway Controller receives according to the media gateway from described callee and/or calling party's base station controller or callee and/or calling party was judged the fax direction;
When described calling party is in different end office (EO) with described callee, whether described callee and/or calling party's Media Gateway Controller basis receives whether the facsimile service switching judging local exchange of described calling party and/or callee's indication is facsimile transmission side, or judges that according to the facsimile signal of Session Description Protocol extended description local exchange is fax initiator or recipient.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610150532A CN101166302B (en) | 2006-10-16 | 2006-10-16 | Service switching method and system |
| PCT/CN2007/070866 WO2008046346A1 (en) | 2006-10-16 | 2007-10-10 | Service switching method, device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610150532A CN101166302B (en) | 2006-10-16 | 2006-10-16 | Service switching method and system |
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| Publication Number | Publication Date |
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| CN101166302A CN101166302A (en) | 2008-04-23 |
| CN101166302B true CN101166302B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610150532A Active CN101166302B (en) | 2006-10-16 | 2006-10-16 | Service switching method and system |
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| Country | Link |
|---|---|
| CN (1) | CN101166302B (en) |
| WO (1) | WO2008046346A1 (en) |
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|---|---|---|---|---|
| CN109963313B (en) * | 2017-12-26 | 2021-08-24 | 海能达通信股份有限公司 | Channel recovery method and device after intra-system and inter-system handover |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622583A (en) * | 2003-11-28 | 2005-06-01 | 华为技术有限公司 | Method for implementing facsimile in next generation network |
| CN1801874A (en) * | 2005-01-07 | 2006-07-12 | 华为技术有限公司 | Method for realizing voice service switching to fax service |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030054826A1 (en) * | 2001-09-18 | 2003-03-20 | Pietro Fionda | Delivery of an incoming data call from a public switched telephone network to a mobile station |
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- 2006-10-16 CN CN200610150532A patent/CN101166302B/en active Active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1622583A (en) * | 2003-11-28 | 2005-06-01 | 华为技术有限公司 | Method for implementing facsimile in next generation network |
| CN1801874A (en) * | 2005-01-07 | 2006-07-12 | 华为技术有限公司 | Method for realizing voice service switching to fax service |
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| Publication number | Publication date |
|---|---|
| WO2008046346A1 (en) | 2008-04-24 |
| CN101166302A (en) | 2008-04-23 |
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