CN1627836A - Method for carring out operation rollback - Google Patents
Method for carring out operation rollback Download PDFInfo
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- CN1627836A CN1627836A CN 200310118406 CN200310118406A CN1627836A CN 1627836 A CN1627836 A CN 1627836A CN 200310118406 CN200310118406 CN 200310118406 CN 200310118406 A CN200310118406 A CN 200310118406A CN 1627836 A CN1627836 A CN 1627836A
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Abstract
The method includes steps: after receiving request for switching to GSM network launched by first user terminal of two parties of carrying out video frequency communication, first MSC in WCDMA network informs both communication parties to carry out operation rollback; after receiving the said inform, both communication parties closes up video frequency operation, and selects voice operation is as communication operation mode so as to complete operation rollback; then, carrying out normal switching flow between systems. The invention makes users possible to communicate in roll backed operation mode without need of interrupting communication. Advantages are: raising satisfying degree of consumers, improving quality of network.
Description
Technical field
The present invention relates to the rollback technology of multimedia service, be meant that especially a kind of user terminal that carries out video traffic in Wideband Code Division Multiple Access (WCDMA) (WCDMA) system carries out the method for professional rollback when switching to global system for mobile communications (GSM) network.
Background technology
Multimedia service in the WCDMA system is the circuit type data service of non-restricted data information (UDI) type of a kind of 64K, i.e. visual telephone service H.324M, and this business is a kind of characteristic service that is different from the GSM network.
Dispose initial stage of WCDMA network the GSM carrier, network coverage is limited.Operator will open the WCDMA network to the handoff functionality between the GSM network for the consideration that seamless service is provided for WCDMA user this moment.Simultaneously, the voice service of high-quality is provided and keeps the stable of GSM net operation in order to ensure to WCDMA user, operator will open the unidirectional handoff functionality of WCDMA network to the GSM network.And present the 3rd band partner program (3GPP) protocol definition about switching flow between the system of circuit domain part, only be applicable to speech business, when promptly not having definition to switch to the GSM network, return back to the method for speech business about the user terminal that in the WCDMA network, carries out multimedia service.
Therefore, when the terminal of carrying out multimedia service in the WCDMA network switches to the GSM network, because the GSM network is not supported multimedia service, carry out the both call sides of multimedia service and can't proceed multimedia service, again because existing network does not support the terminal of carrying out switching between system to realize professional rollback function, may go offline simultaneously so carry out the both call sides of multimedia service.
Summary of the invention
Main purpose of the present invention provides a kind of method of carrying out professional rollback, when making the terminal of carrying out multimedia service in the WCDMA network switch to the GSM network, can utilize the business behind the rollback to converse.
A kind of method of carrying out professional rollback provided by the invention comprises:
After a MSC receives that first user terminal is initiated to the handoff request of GSM network in the both call sides that carries out video calling in the A.WCDMA network, notify both call sides to carry out professional rollback respectively;
B. after described both call sides is received this notice, close video traffic respectively, selecting speech business is the talk business form, finishes professional rollback, carries out switching flow between normal system then.
If both call sides belongs to a MSC, then notice described in the steps A is that a MSC sends the modify instruction realization that the BC parameter is Speech to both call sides respectively.
Select respectively after form of service is speech business at both call sides, step B comprises:
B11, both call sides send to a MSC respectively and revise the response of finishing;
After B12, a MSC receive that both call sides is revised the response of finishing, send the instruction of revising described both call sides RAB to radio network controller;
B13, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to a MSC then, finish professional rollback.
If second user terminal belongs to two MSC different with a MSC in the both call sides, then described notice both call sides carries out professional rollback and comprises:
It is the modify instruction of Speech that A1, a MSC send the BC parameter to first user terminal, and a MSC is the modify instruction of Speech by the 2nd MSC second user terminal transmission BC parameter in both call sides.
It is that the modify instruction of Speech is to send by the BICC/ISUP signaling that a described MSC sends the BC parameter by the 2nd MSC to second user terminal.
Facility message is to comprise that the BC parameter is the message of Speech in the described ISUP signaling.
Select respectively after form of service is speech business at both call sides, step B comprises:
B211, first user terminal send to a MSC and revise the response of finishing, and after a MSC receives this response, send the instruction of revising RAB to radio network controller;
B212, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to a MSC then.
Select respectively after form of service is speech business at both call sides, step B comprises:
B221, second user terminal send to the 2nd MSC and revise the response of finishing, and after the 2nd MSC receives this response, send the instruction of revising RAB to radio network controller;
B222, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to the 2nd MSC then;
B223, the 2nd MSC send to a MSC by the BICC/ISUP signaling and revise the response that finishes.
Second user terminal is in the non-WCDMA network that video traffic can be provided in the described both call sides.
Second user terminal is terminal H.323 in the described both call sides, or sip terminal.
Step B comprises:
It is the modify instruction of Speech that B31, a MSC first user terminal in both call sides sends the BC parameter, and second user terminal is the modify instruction of Speech by affiliated GK to second user terminal transmission BC parameter.
It is that the modify instruction of Speech is to realize by agreement H.245 that described first user terminal sends the BC parameter to second user terminal.
Method of the present invention is after the user terminal that carries out video calling is initiated to the handoff request of GSM network, before switching between executive system, finishes professional rollback, and then makes not interrupt communication of user terminal, utilizes the business behind the rollback to converse.This method not only can increase terminal consumer's satisfaction, also will improve the network quality of operator.And this method does not need to do any transformation to existing network GSM equipment, and is therefore simple, reliable.
Description of drawings
Fig. 1 is for realizing the idiographic flow schematic diagram of the inventive method;
Fig. 2 is for realizing the specific embodiment one flow process schematic diagram of the inventive method;
Fig. 3 is for realizing the specific embodiment two flow process schematic diagrames of the inventive method.
Embodiment
When solving that at least one side switches to the GSM network in the both call sides carry out video traffic in the WCDMA network, make both call sides return back to speech business, method of the present invention is after network side is received the handoff request that the user terminal that carries out video calling sends, the temporary transient handoff procedure that interrupts, the notice both call sides carries out professional rollback, and after finishing professional rollback, carry out again switching between system.
Referring to shown in Figure 1, realize that method of the present invention may further comprise the steps:
A MSC receives that first user terminal in the both call sides that carries out video calling is initiated to the handoff request of GSM network in the step 101:WCDMA network, and the notice both call sides carries out professional rollback;
Step 102: after described both call sides is received this notice, close video traffic respectively, selecting speech business is the talk business form, finishes professional rollback, carries out switching flow between normal system then.
The both call sides of indication can be in same MSC among the WCDMA among the present invention, also can be in different MSC, i.e. a MSC and the 2nd MSC.Certainly comprise also that first user terminal in the both call sides is the user terminal in the WCDMA network, second user terminal is in the non-WCDMA network that video traffic can be provided, as the situation of terminal or sip terminal H.323 in the IP telephony network, in this case, the user terminal of initiation handoff request can only be the user terminal in the WCDMA network.
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments.
Present embodiment is the both call sides that carries out video calling when belonging in the WCDMA network same MSC, and caller is initiated to the situation of the handoff request of GSM network.The call subscriber terminal of indication (UE) is first user terminal in the present embodiment, and called UE is second user terminal, and calling UE and called UE belong to same MSC.
Referring to shown in Figure 2, both call sides realizes that the processing procedure of professional rollback is as follows:
Step 201:MSC receives that the purpose sub-district that radio network controller (RNC) sends is the handoff request of GSM, judges whether the both call sides of this handoff request correspondence carries out video calling, if, execution in step 202, otherwise, jump out this flow process, carry out normal hand-off process flow process.
Step 202～203:MSC respectively in both call sides calling UE and called UE to send carrying property parameters (BC) be that the modification (Modify) of voice (Speech) is instructed, calling UE and called UE are closed video traffic after receiving this instruction, change into speech business.
Step 204～205: calling UE and called UE send Modify to MSC respectively and finish (complete) message.
After step 206:MSC received the Modify complete message of calling UE and called UE transmission, notice RNC carried out the modification of caller, called RAB carrying.
After step 207～208:RNC received the notice of MSC, (RAB) made amendment to RAB, after the modification of finishing RAB, sent receiveing the response of RAB modification to MSC.
Step 209:MSC carries out switching between system to calling UE after receiving receiveing the response of this RAB modification.
Below in conjunction with the drawings and specific embodiments two explanations technical scheme of the present invention.
Present embodiment is the both call sides that carries out video calling when belonging in the WCDMA network different MS C, and is initiated to the situation of the handoff request of GSM network by caller.The calling UE of indication is first user terminal in the present embodiment, and called UE is second user terminal; Calling UE belongs to a MSC, and called UE belongs to the 2nd MSC.
Referring to shown in Figure 3, present embodiment realizes that the detailed process of professional rollback is as follows:
Step 301: it is the handoff request of GSM that calling UE sends Target cell to caller MSC, after caller MSC receives this handoff request, judges whether be in video call state between calling UE and the called UE, if then execution in step 302, otherwise, jump out this flow process, carry out between normal system and switch.
Step 302: caller MSC sends the Modify instruction that the BC parameter is Speech to calling UE.
Step 303: calling UE is closed video traffic after receiving this instruction, changes into speech business, sends Modify Complete message to caller MSC then.
Step 304: after caller MSC receives this Modify Complete message, send the RABModify instruction to RNC.
Step 305～306:RNC finishes the modification of RAB after receiving RAB Modify instruction, sends RAB Modify response to RNC then.
Step 307: caller MSC sends the Modify instruction by the BICC signaling to called MS C.
After step 308: called MS C receives this Modify instruction, send it back the Modify instruction that falls back on voice to called UE.
Step 309: called UE is closed video traffic after receiving this Modify instruction, changes into speech business, sends Modify Complete message to called MS C then.
After step 310: called MS C receives this Modify Complete message, send RAB to RNC and revise RAB Modify instruction.
Step 311～312:RNC finishes the modification of RAB after receiving RAB Modify instruction, sends RAB Modify response to called MS C then.
Step 313: called MS C sends Modify Complete message by the BICC signaling to caller MSC after receiving this RAB Modify response.
Step 314: after caller MSC receives the Modify Complete message of step 311, switching flow between the system of initiation calling UE.
In the above-described embodiments, the process of the Modify of calling UE is carried out in step 302～306th, step 308～313rd, and called UE is carried out the process of Modify.In actual mechanical process, step 302 and step 307 can be carried out simultaneously, promptly carry out the process of the Modify of calling UE and called UE simultaneously.Therefore the present invention does not limit the order of above-mentioned steps.
Need to prove, caller MSC can by with the call control signalling (BICC of bearer independent, Bearer Independent Call Control) notice called MS C also can adopt and support ISUP (ISUP, ISDN User Part) signaling called MS C.Because the Facility message in the ISUP signaling can the free position in calling procedure be initiated, so when adopting the ISUP signaling, Facility message need be expanded, make it carry the carrying sign indicating number, and require MSC to claim that negotiations process gets final product according to the expansion of Facility message.
In addition, because in actual application, may there be UE and the video call process between terminal or the sip terminal H.323, therefore, when UE switches, the phenomenon of video traffic also will take place not support between WCDMA and gsm system.Method of the present invention also can comprise this situation.At this moment, can adopt H.245 agreement to finish MSC and the H.323 negotiation between the gatekeeper.That is to say, after the one MSC receives that the user terminal that carries out video traffic is initiated to the handoff request of GSM network, notify second user terminal to return back to voice by GK, at this moment adopt agreement H.245 to finish communication process between a MSC and GK and the GK and second user terminal, and then finish professional rollback, and then carry out switching flow between the modular system of 3GPP definition.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1, a kind of method of carrying out professional rollback is characterized in that, this method may further comprise the steps:
After a MSC receives that first user terminal is initiated to the handoff request of GSM network in the both call sides that carries out video calling in the A.WCDMA network, notify both call sides to carry out professional rollback respectively;
B. after described both call sides is received this notice, close video traffic respectively, selecting speech business is the talk business form, finishes professional rollback, carries out switching flow between normal system then.
2, method according to claim 1 is characterized in that, if both call sides belongs to a MSC, then notice described in the steps A is that a MSC sends the modify instruction realization that the BC parameter is Speech to both call sides respectively.
3, method according to claim 2 is characterized in that, selects respectively after form of service is speech business at both call sides, and step B comprises:
B11, both call sides send to a MSC respectively and revise the response of finishing;
After B12, a MSC receive that both call sides is revised the response of finishing, send the instruction of revising described both call sides RAB to radio network controller;
B13, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to a MSC then, finish professional rollback.
4, method according to claim 1 is characterized in that, if second user terminal belongs to two MSC different with a MSC in the both call sides, then described notice both call sides carries out professional rollback and comprises:
It is the modify instruction of Speech that A1, a MSC send the BC parameter to first user terminal, and a MSC is the modify instruction of Speech by the 2nd MSC second user terminal transmission BC parameter in both call sides.
5, method according to claim 4 is characterized in that, it is that the modify instruction of Speech is to send by the BICC/ISUP signaling that a described MSC sends the BC parameter by the 2nd MSC to second user terminal.
6, method according to claim 5 is characterized in that, facility message is to comprise that the BC parameter is the message of Speech in the described ISUP signaling.
7, method according to claim 4 is characterized in that, selects respectively after form of service is speech business at both call sides, and step B comprises:
B211, first user terminal send to a MSC and revise the response of finishing, and after a MSC receives this response, send the instruction of revising RAB to radio network controller;
B212, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to a MSC then.
8, method according to claim 4 is characterized in that, selects respectively after form of service is speech business at both call sides, and step B comprises:
B221, second user terminal send to the 2nd MSC and revise the response of finishing, and after the 2nd MSC receives this response, send the instruction of revising RAB to radio network controller;
B222, radio network controller are finished the modification of RAB according to the instruction of receiving, send the response that RAB RAB revises to the 2nd MSC then;
B223, the 2nd MSC send to a MSC by the BICC/ISUP signaling and revise the response that finishes.
9, method according to claim 1 is characterized in that, second user terminal is in the non-WCDMA network that video traffic can be provided in the described both call sides.
10, method according to claim 9 is characterized in that, second user terminal is terminal H.323 in the described both call sides, or sip terminal.
11, method according to claim 9 is characterized in that, step B comprises:
It is the modify instruction of Speech that B31, a MSC first user terminal in both call sides sends the BC parameter, and second user terminal is the modify instruction of Speech by affiliated GK to second user terminal transmission BC parameter.
12, method according to claim 9 is characterized in that, it is that the modify instruction of Speech is to realize by agreement H.245 that described first user terminal sends the BC parameter to second user terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101184061A CN100341342C (en) | 2003-12-09 | 2003-12-09 | Method for carring out operation rollback |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101184061A CN100341342C (en) | 2003-12-09 | 2003-12-09 | Method for carring out operation rollback |
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| Publication Number | Publication Date |
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| CN1627836A true CN1627836A (en) | 2005-06-15 |
| CN100341342C CN100341342C (en) | 2007-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2003101184061A Expired - Fee Related CN100341342C (en) | 2003-12-09 | 2003-12-09 | Method for carring out operation rollback |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090213758A1 (en) * | 2008-02-27 | 2009-08-27 | Microsoft Corporation | Automated Configuration of Network Mode |
| CN101453790B (en) * | 2007-12-04 | 2012-07-25 | 联想(北京)有限公司 | Communication method and device for user terminal |
| CN104602306A (en) * | 2009-06-16 | 2015-05-06 | 黑莓有限公司 | Method for accessing a service unavailable through a network cell |
| US10341910B2 (en) | 2009-06-16 | 2019-07-02 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US10341903B2 (en) | 2009-06-16 | 2019-07-02 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW306102B (en) * | 1993-06-14 | 1997-05-21 | Ericsson Telefon Ab L M | |
| US5896368A (en) * | 1995-05-01 | 1999-04-20 | Telefonaktiebolaget Lm Ericsson | Multi-code compressed mode DS-CDMA systems and methods |
| FI106285B (en) * | 1998-02-17 | 2000-12-29 | Nokia Networks Oy | Measurement reporting in a telecommunication system |
| EP1081978A1 (en) * | 1999-08-31 | 2001-03-07 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Subscriber station and method for carrying out inter-frequency measurement in a mobile communication system |
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2003
- 2003-12-09 CN CNB2003101184061A patent/CN100341342C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101453790B (en) * | 2007-12-04 | 2012-07-25 | 联想(北京)有限公司 | Communication method and device for user terminal |
| US20090213758A1 (en) * | 2008-02-27 | 2009-08-27 | Microsoft Corporation | Automated Configuration of Network Mode |
| US8782251B2 (en) * | 2008-02-27 | 2014-07-15 | Microsoft Corporation | Automated configuration of network mode |
| US11039344B2 (en) | 2009-06-16 | 2021-06-15 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US10341910B2 (en) | 2009-06-16 | 2019-07-02 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US10341903B2 (en) | 2009-06-16 | 2019-07-02 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| CN104602306A (en) * | 2009-06-16 | 2015-05-06 | 黑莓有限公司 | Method for accessing a service unavailable through a network cell |
| US11096095B2 (en) | 2009-06-16 | 2021-08-17 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US11546807B2 (en) | 2009-06-16 | 2023-01-03 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US11546809B2 (en) | 2009-06-16 | 2023-01-03 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US11832132B2 (en) | 2009-06-16 | 2023-11-28 | Blackberry Limited | Method for accessing a service unavailable through a network cell |
| US12028755B2 (en) | 2009-06-16 | 2024-07-02 | Malikie Innovations Limited | Method for accessing a service unavailable through a network cell |
| US12075291B2 (en) | 2009-06-16 | 2024-08-27 | Malikie Innovations Limited | Method for accessing a service unavailable through a network cell |
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| Publication number | Publication date |
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| CN100341342C (en) | 2007-10-03 |
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Granted publication date: 20071003 Termination date: 20191209 |