CN101146254A - Video call drop method - Google Patents
Video call drop method Download PDFInfo
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- CN101146254A CN101146254A CNA2007101204928A CN200710120492A CN101146254A CN 101146254 A CN101146254 A CN 101146254A CN A2007101204928 A CNA2007101204928 A CN A2007101204928A CN 200710120492 A CN200710120492 A CN 200710120492A CN 101146254 A CN101146254 A CN 101146254A
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Abstract
The inventive embodiment relates to a fallback method of a video phone which comprises: when a calling terminal sends a video phone call, an originating mobile switching center of the calling terminal sends a command of releasing the video phone call after obtaining the reason of connection failure in the video phone call, with the command being carrying the reason of the connection failure; the calling terminal releases the video phone call according to the reason of the connection failure and gives a voice phone call based on the will of a calling user. The inventive embodiment provides an easy-to-apply video phone fallback service without changing the existing network structure, which can save the construction cost of network, enhance the user's experience, and improve the service quality, so that the degree of customers' loyalty and satisfaction to a service provider is enhanced.
Description
Technical field
The present invention relates to video call drop method, belong to communication technical field.
Background technology
Visual telephone is one of characteristic service among the 3G, can provide the business experience that is different from 2G user for 3G subscription.Carrying out of visual telephone business needs the support of the function of 3G wireless network, core net and terminal, and needs the cooperation of 3G network and terminal to realize.When network or terminal can't be supported visual telephone business for some reason, will cause user video call request failure.Video call drop is meant when the request of calling terminal initiation video call, when current network or terminal can't be set up the visual telephone passage because of some reason, under the prerequisite that the user agrees, it is the function of voice call with video call drop automatically that network and terminal can cooperate.
At present in the 3GPP standard, there is standard (3GPP TR 23.801) to stipulate for the realization that falls function after rise, but because 3GPP does not consider the practical problem of service operation, therefore in this standard for the specific implementation mechanism that falls after rise stipulate and imperfection, if only following this standard of 3GPP, operator comes on-premise network and terminal, so in the service operation of reality, network and terminal are to cooperate the falling function that visual telephone is provided for the user.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of implementation method of video call drop function, to solve the realization of video call drop service in the actual operation.
For achieving the above object, the invention provides a kind of embodiment of video call drop method, comprise following steps: when calling terminal is initiated video phone call, after the mobile switching centre that makes a start of calling terminal obtains the connection failure reason of this video phone call, send the indication that discharges this video phone call to described calling terminal, described indication carries the connection failure reason; Calling terminal discharges described video phone call according to described connection failure reason, and initiates voice telephone calls according to calling subscriber's wish.
Embodiments of the invention, the concrete enforcement mechanism of video call drop service has been proposed, make a start mobile switching centre after the connection failure reason that obtains this video phone call, when described calling terminal sends the indication that discharges this video phone call, inform the connection failure reason of this video phone call, need not to change under the situation of network configuration, provide simple, the easily video call drop service of implementing, thereby saved the network configuration improvement cost, strengthened user experience, improved user's service, and then improved loyalty and the satisfaction of user operator.
Description of drawings
Fig. 1 is the flow chart of a kind of video call drop method embodiment one of the present invention;
Fig. 2 is video call drop scene a period of time, the flow chart of video call drop method;
When Fig. 3 is video call drop scene two, the flow chart of video call drop method;
When Fig. 4 is video call drop scene three, the flow chart of video call drop method;
When Fig. 4 is video call drop scene four, the flow chart of video call drop method;
When Fig. 6 is video call drop scene five, the flow chart of video call drop method;
When Fig. 7 is video call drop scene six, the flow chart of video call drop method.
Embodiment
Below term related in the embodiments of the invention is made an explanation:
1) Home Network, if terminal called and calling terminal be in the network that same operator provides, then terminal called is this network users with respect to calling terminal.
2) his net, if terminal called and calling terminal be respectively in the network that different operators provides, then terminal called is his network users with respect to calling terminal
3) mode of video call drop, the realization of video call drop function is cooperated by terminal and core net to be finished, terminal adopts the mode of " RE-DIAL " to realize the falling (specifically referring to 3GPPTR 23.801) of visual telephone, this 3GPP standard code the implementation of " RE-DIAL ".
4) scene of video call drop, stipulated the scene of video call drop in the embodiments of the invention, the scene of video call drop has determined the connection failure reason of video phone call, and the scene of the video call drop that relates in the embodiments of the invention includes but not limited to following several:
Scene one, terminal called are his network termination, and visual telephone (Video Phone is called for short VP) not intercommunication of business between the Home Network at described his net and the calling terminal place that makes a call;
The not signatory visual telephone business of scene two, terminal called;
The signatory visual telephone business of scene three, terminal called but be positioned at the 2G Access Network;
The signatory visual telephone business of scene four, terminal called and be positioned at the 3G Access Network, but current terminal called is not supported visual telephone business;
The signatory visual telephone business of scene five, terminal called and be positioned at the 3G Access Network, current terminal called is supported visual telephone business, but residing radio coverage is not supported video traffic;
The signatory visual telephone business of scene six, terminal called and be positioned at the 3G Access Network, current terminal called is supported visual telephone business, but terminal called refusal video selects voice to answer.
Wherein in scene two-scene six, terminal called can be the Home Network terminal, also can be his network termination, the visual telephone business intercommunication of described his net and Home Network.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, the flow chart for a kind of video call drop method embodiment one of the present invention comprises;
Step 1, calling terminal are initiated video phone call.Described video phone call includes but not limited to, the number information of visual telephone parameter information, terminal called etc.
The mobile switching centre that makes a start of step 2, calling terminal (Mobile Switching Center is called for short MSC) obtains the connection failure reason of this video phone call.
This embodiment, the concrete enforcement mechanism of video call drop service has been proposed, make a start MSC after the connection failure reason that obtains this video phone call, when described calling terminal sends the indication that discharges this video phone call, inform the connection failure reason of this video phone call, need not to change under the situation of network configuration, video call drop service simple, that easily implement is provided, thereby saved the network configuration improvement cost, strengthened user experience, improved user's service, and then improved loyalty and the satisfaction of user operator.
Described connection failure reason does not comprise: terminal called does not exist, terminal called is conversed, terminal called out of reach, terminal called shut down, the terminal called refusal is answered and/or carry out visual telephone by the video interactive gateway.
When the scene of video call drop be described scene for the moment, the idiographic flow of video call drop comprises as shown in Figure 2:
Step al, calling terminal are initiated video phone call to its MSC that makes a start;
Step a2, the MSC that makes a start judge that the terminal called in the described video phone call is his network termination, and the not intercommunication of visual telephone business between the Home Network at described his net and calling terminal place, and the MSC that then makes a start determines the connection failure reason of this video phone call.
Step a3, the MSC that makes a start send the indication that discharges this video phone call to calling terminal, and described indication carries the connection failure reason.Calling terminal discharges the Radio Link that this video phone call is set up after receiving the indication that discharges this video phone call, initiate an audio call to realize the falling of described visual telephone according to calling subscriber's wish by calling terminal.
When the scene of video call drop was described scene two, the idiographic flow of video call drop comprised as shown in Figure 3:
Step b1, calling terminal are initiated video phone call to its MSC that makes a start;
Step b21, the MSC that makes a start are to called Home Location Register (Home Location Register, be called for short HLR) transmission routing inquiry message (Send Routing Information, be called for short SRI), bearing parameter is the visual telephone parameter in this routing inquiry message;
Step b22, called HLR inquiry packet are contained in the terminal called in the routing inquiry message of reception, find the signatory visual telephone business of this terminal called;
Step b23, called HLR are returned the routing inquiry failure response to the MSC that makes a start, the connection failure of returning this video phone call simultaneously is former because bearing capacity is current can't to provide (Bearer Service NotProvisioned), and the MSC that makes a start determines the connection failure reason of this video phone call.
Step b3, the MSC that makes a start send the indication that discharges this video phone call to calling terminal, and described indication carries the connection failure reason.Calling terminal discharges the Radio Link that this video phone call is set up after receiving the indication that discharges this video phone call, initiate an audio call to realize the falling of described visual telephone according to calling subscriber's wish by calling terminal.
When the scene of video call drop was described scene three, the idiographic flow of video call drop comprised as shown in Figure 4:
Step c1, calling terminal are initiated video phone call to its MSC that makes a start;
Step c21, the MSC that makes a start send routing inquiry message SRI to called HLR, and bearing parameter is the visual telephone parameter in this routing inquiry message;
Step c22, called HLR inquiry packet are contained in the terminal called in the routing inquiry message of reception, find the signatory visual telephone business of this terminal called;
Step c23, called HLR send roaming number message call (Provide RoamingNumber is called for short PRN) to receiving end MSC, and bearing parameter is the visual telephone parameter in this roaming number message call;
Step c24, receiving end MSC return roaming number to called HLR;
Step c25, called HLR are returned route response message to the MSC that makes a start;
Step c26, make a start MSC and receiving end MSC transmission call connection request; The MSC that makes a start initiates initial address message (Initial Address Message is called for short IAM) to receiving end MSC and connects to set up to call out, and bearing parameter is the visual telephone parameter in the described initial address message;
Step c27, receiving end MSC judge that terminal called is in the 2G network;
Step c28, receiving end MSC send out the notice that discharges this video phone call to the MSC that makes a start, and the MSC that makes a start determines the connection failure reason of this video phone call.
Step c3, the MSC that makes a start send the indication that discharges this video phone call to calling terminal, and described indication carries the connection failure reason.Calling terminal discharges the Radio Link that this video phone call is set up after receiving the indication that discharges this video phone call, initiate an audio call to realize the falling of described visual telephone according to calling subscriber's wish by calling terminal.
When the scene of video call drop was described scene four, the idiographic flow of video call drop comprised as shown in Figure 5:
Steps d 1, calling terminal are initiated video phone call to its MSC that makes a start;
Steps d 21, the MSC that makes a start send routing inquiry message SRI to called HLR, and bearing parameter is the visual telephone parameter in this routing inquiry message;
Steps d 22, called HLR inquiry packet are contained in the terminal called in the routing inquiry message of reception, find the signatory visual telephone business of this terminal called;
Steps d 23, called HLR send roaming number message call (Provide RoamingNumber is called for short PRN) to receiving end MSC, and bearing parameter is the visual telephone parameter in this roaming number message call;
Steps d 24, receiving end MSC return roaming number to called HLR;
Steps d 25, called HLR are returned route response message to the MSC that makes a start;
Steps d 26, make a start MSC and receiving end MSC transmission call connection request; The MSC that makes a start initiates initial address message (Initial Address Message is called for short IAM) to receiving end MSC and connects to set up to call out, and bearing parameter is the visual telephone parameter in the described initial address message;
Steps d 27, receiving end MSC judge that terminal called is in 3G network;
Steps d 28, receiving end MSC are to the terminal called connection request that makes a call;
Steps d 29, the current terminal called of judgement are not supported visual telephone business;
Steps d 210, terminal called are sent out the notice that discharges this video phone call to receiving end MSC;
Steps d 211, receiving end MSC send out the notice that discharges this video phone call to the MSC that makes a start, and the MSC that makes a start determines the connection failure reason of this video phone call.
When the scene of video call drop was described scene five, the idiographic flow of video call drop comprised as shown in Figure 6:
Step e1, calling terminal are initiated video phone call to its MSC that makes a start;
Step e21, the MSC that makes a start send routing inquiry message SRI to called HLR, and bearing parameter is the visual telephone parameter in this routing inquiry message;
Step e22, called HLR inquiry packet are contained in the terminal called in the routing inquiry message of reception, find the signatory visual telephone business of this terminal called;
Step e23, called HLR send roaming number message call PRN to receiving end MSC, and bearing parameter is the visual telephone parameter in this roaming number message call;
Step e24, receiving end MSC return roaming number to called HLR;
Step e25, called HLR are returned route response message to the MSC that makes a start;
Step e26, make a start MSC and receiving end MSC transmission call connection request; The MSC that makes a start initiates initial address message (Initial Address Message is called for short IAM) to receiving end MSC and connects to set up to call out, and bearing parameter is the visual telephone parameter in the described initial address message;
Step e27, receiving end MSC judge that terminal called is in 3G network;
Step e28, receiving end MSC are to the terminal called connection request that makes a call;
Step e29, terminal called send to receiving end MSC and call out acknowledge message, represent that this terminal called supports this video call business;
Step e210, receiving end MSC send RAB (Radio Access Bear is called for short RAB) allocation request message to the radio network controller (Radio NetworkController is called for short RNC) of receiving end, and the wireless side carrying is set up in request.
Step e211, receiving end RNC detect the radio coverage at this terminal called place and do not support visual telephone business;
Step e212, receiving end RNC send out the notice that discharges this video phone call to receiving end MSC; Execution in step e213 and e214 are forwarded to make a start MSC and terminal called with this notice that discharges this video phone call then;
Step e213, this notice that discharges this video phone call is forwarded to the MSC that makes a start, the MSC that makes a start determines the connection failure reason of this video phone call.
Step e214, this notice that discharges this video phone call is forwarded to terminal called.
Step e3, the MSC that makes a start send the indication that discharges this video phone call to calling terminal, and described indication carries the connection failure reason.Calling terminal discharges the Radio Link that this video phone call is set up after receiving the indication that discharges this video phone call, initiate an audio call to realize the falling of described visual telephone according to calling subscriber's wish by calling terminal.
When the scene of video call drop was described scene six, the idiographic flow of video call drop comprised as shown in Figure 6:
Step f1, calling terminal are initiated video phone call to its MSC that makes a start;
Step f21, the MSC that makes a start send routing inquiry message SRI to called HLR, and bearing parameter is the visual telephone parameter in this routing inquiry message;
Step f22, called HLR inquiry packet are contained in the terminal called in the routing inquiry message of reception, find the signatory visual telephone business of this terminal called;
Step f23, called HLR send roaming number message call PRN to receiving end MSC, and bearing parameter is the visual telephone parameter in this roaming number message call;
Step f24, receiving end MSC return roaming number to called HLR;
Step f25, called HLR are returned route response message to the MSC that makes a start;
Step f26, make a start MSC and receiving end MSC transmission call connection request; The MSC that makes a start initiates initial address message (Initial Address Message is called for short IAM) to receiving end MSC and connects to set up to call out, and bearing parameter is the visual telephone parameter in the described initial address message;
Step f27, receiving end MSC judge that terminal called is in 3G network;
Step f28, receiving end MSC are to the terminal called connection request that makes a call;
Step f29, terminal called send to receiving end MSC and call out acknowledge message, represent that this terminal called supports this video call business;
Step f210, receiving end MSC send to the MSC that makes a start and call out acknowledge message;
Step f211, the MSC that makes a start send to calling terminal and call out acknowledge message;
Step f212, terminal called initiate prompting (ALEATING) message to calling terminal, as in the following manner, i.e. and dialed terminal bell, calling terminal is received ring-back;
Step f213, terminal called notice user video is called out and is arrived, and prompting selective reception mode, as 1) answer 2 with video mode) voice answer 3) refuse this calling.If the user selects 2) voice answer;
Step f214, terminal called are sent to receiving end MSC with this notice that discharges this video phone call;
Step f215, receiving end MSC are forwarded to the MSC that makes a start with the notice that this discharges this video phone call, and the MSC that makes a start determines the connection failure reason of this video phone call;
Step f3, the MSC that makes a start send the indication that discharges this video phone call to calling terminal, and described indication carries the connection failure reason.Calling terminal discharges the Radio Link that this video phone call is set up after receiving the indication that discharges this video phone call, initiate an audio call to realize the falling of described visual telephone according to calling subscriber's wish by calling terminal.
What scene six was described is that calling terminal is initiated video phone call, signatory or when supporting visual telephone business in network and terminal, because the user is when subjectively refusing to answer visual telephone, and the falling sight under the situation of video phone call failure.In the scene six, calling terminal can be according to the connection failure reason of its video phone call that receives, judge network and terminal called and all meet the successful condition of video phone call foundation, by this connection failure reason, calling terminal can select to initiate voice telephone calls, as needs, also can initiate video phone call after a while again.
The connection failure reason of video phone call may be summarized to be in above-mentioned scene one, scene two, scene four, the scene six: bearing capacity is current can't to be provided (i.e. the 58th reason " Bearer capability notpresently available ").When the video phone call connection failure of scene one, scene two, scene four or scene six occurring, can directly send the 58th reason " Bearercapability not presently available " to calling terminal.
The connection failure reason of video phone call may be summarized to be in above-mentioned scene three, the scene five: resource unavailable (i.e. the 47th reason " Resources unavailable, unspecified ").When the video phone call connection failure of scene three or scene five occurring, can directly send the 47th reason " Resources unavailable, unspecified " to calling terminal.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a video call drop method is characterized in that, comprises following steps:
When calling terminal is initiated video phone call, after the mobile switching centre that makes a start of calling terminal obtains the connection failure reason of this video phone call, send the indication that discharges this video phone call to described calling terminal, described indication carries the connection failure reason;
Calling terminal discharges described video phone call according to described connection failure reason, and initiates voice telephone calls according to calling subscriber's wish.
2. method according to claim 1, it is characterized in that described connection failure reason does not comprise: terminal called does not exist, terminal called is conversed, terminal called out of reach, terminal called shut down, the terminal called refusal is answered and/or carry out visual telephone by the video interactive gateway.
3. method according to claim 1, it is characterized in that, the mobile switching centre that makes a start judges that whether terminal called in the described video phone call is his network termination, if described terminal called is his network termination, and the not intercommunication of visual telephone business between the Home Network at described his net and calling terminal place, the mobile switching centre that then makes a start determines the connection failure reason of this video phone call.
4. method according to claim 3, it is characterized in that, if described terminal called is this network termination, or if described terminal called is the visual telephone business intercommunication between his network termination and described his net and the described Home Network, the mobile switching centre that makes a start is to called Home Location Register transmission routing inquiry message; If called Home Location Register inquires the not signatory visual telephone business of terminal called in the routing inquiry message that is included in reception, then return the routing inquiry failure response to the mobile switching centre that makes a start, the mobile switching centre that makes a start determines the connection failure reason of this video phone call.
5. method according to claim 4, it is characterized in that, if called Home Location Register inquires the signatory visual telephone business of terminal called in the routing inquiry message that is included in reception, then send the roaming number message call to receiving end mobile switching centre; Called Home Location Register returns route response message to the mobile switching centre that makes a start after receiving roaming number; Make a start mobile switching centre to receiving end mobile switching centre transmission call connection request; If receiving end mobile switching centre judges that terminal called is in the 2G network, then send out the notice that discharges this video phone call to the mobile switching centre that makes a start, the mobile switching centre that makes a start determines the connection failure reason of this video phone call.
6. method according to claim 5, it is characterized in that, if receiving end mobile switching centre judges that terminal called is in 3G network, then send call connection request to terminal called, if current terminal called is not supported visual telephone business, then send out the notice that discharges this video phone call by receiving end mobile switching centre to the mobile switching centre that makes a start, the mobile switching centre that makes a start determines the connection failure reason of this video phone call.
7. method according to claim 6 is characterized in that, if terminal called is supported visual telephone business, then sends to receiving end mobile switching centre and calls out acknowledge message; Called radio network controller detects the radio coverage at terminal called place and does not support visual telephone business, then send out the notice that discharges this video phone call by receiving end mobile switching centre to the mobile switching centre that makes a start, the mobile switching centre that makes a start determines the connection failure reason of this video phone call.
8. method according to claim 7, it is characterized in that, if terminal called is supported visual telephone business, then send to calling terminal and call out acknowledge message via the receiving end mobile switching centre and the mobile switching centre that makes a start, if terminal called selects voice to answer, then send out the notice that discharges this video phone call by receiving end mobile switching centre to the mobile switching centre that makes a start, the mobile switching centre that makes a start determines the connection failure reason of this video phone call.
9. according to claim 3,4,6 or 8 described arbitrary methods, it is characterized in that described connection failure is former can't to be provided because bearing capacity is current.
10. according to claim 5 or 7 described methods, it is characterized in that described connection failure former is because resource is unavailable.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101204928A CN100574476C (en) | 2007-08-20 | 2007-08-20 | Video call drop method |
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| CNB2007101204928A CN100574476C (en) | 2007-08-20 | 2007-08-20 | Video call drop method |
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| CN101146254A true CN101146254A (en) | 2008-03-19 |
| CN100574476C CN100574476C (en) | 2009-12-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009138002A1 (en) * | 2008-05-13 | 2009-11-19 | 华为技术有限公司 | Method, system and apparatus for dropping back to voice call from video call |
| CN101695121A (en) * | 2009-10-29 | 2010-04-14 | 中兴通讯股份有限公司 | Video call recovering method, device and system |
| WO2011015092A1 (en) * | 2009-08-06 | 2011-02-10 | 中兴通讯股份有限公司 | Method and system for controlling and notifying local ip access |
| CN101998364A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for managing local internet protocol access connection |
| CN102523222A (en) * | 2011-12-20 | 2012-06-27 | 中国联合网络通信集团有限公司 | Processing method for videophone call receding and processing system for same |
| CN101938621B (en) * | 2009-07-01 | 2012-11-21 | 中国移动通信集团公司 | Processing method, device and system of video call |
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2007
- 2007-08-20 CN CNB2007101204928A patent/CN100574476C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009138002A1 (en) * | 2008-05-13 | 2009-11-19 | 华为技术有限公司 | Method, system and apparatus for dropping back to voice call from video call |
| CN101287163B (en) * | 2008-05-13 | 2012-02-15 | 华为技术有限公司 | Method, system and device for falling video call to voice call |
| CN101938621B (en) * | 2009-07-01 | 2012-11-21 | 中国移动通信集团公司 | Processing method, device and system of video call |
| WO2011015092A1 (en) * | 2009-08-06 | 2011-02-10 | 中兴通讯股份有限公司 | Method and system for controlling and notifying local ip access |
| CN101990313A (en) * | 2009-08-06 | 2011-03-23 | 中兴通讯股份有限公司 | Method, informing method and system for realizing local IP access control |
| CN101990313B (en) * | 2009-08-06 | 2014-01-01 | 中兴通讯股份有限公司 | Method, informing method and system for realizing local IP access control |
| CN101998364A (en) * | 2009-08-21 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for managing local internet protocol access connection |
| CN101695121A (en) * | 2009-10-29 | 2010-04-14 | 中兴通讯股份有限公司 | Video call recovering method, device and system |
| WO2011050650A1 (en) * | 2009-10-29 | 2011-05-05 | 中兴通讯股份有限公司 | Method, device and system for processing video telephone fallback |
| CN102523222A (en) * | 2011-12-20 | 2012-06-27 | 中国联合网络通信集团有限公司 | Processing method for videophone call receding and processing system for same |
| CN102523222B (en) * | 2011-12-20 | 2014-10-22 | 中国联合网络通信集团有限公司 | Processing method for videophone call receding and processing system for same |
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|---|---|
| CN100574476C (en) | 2009-12-23 |
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Effective date of registration: 20090522 Address after: Number 21, Finance Street, Beijing, Xicheng District: 100140 Applicant after: China United Network Telecommunication Group Co., Ltd. Address before: Number 21, Finance Street, Beijing, Xicheng District: 100032 Applicant before: China Network Communications Group Corporation |
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