CN101166105B - Online user invitation method for conference service - Google Patents
Online user invitation method for conference service Download PDFInfo
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- CN101166105B CN101166105B CN2007101455771A CN200710145577A CN101166105B CN 101166105 B CN101166105 B CN 101166105B CN 2007101455771 A CN2007101455771 A CN 2007101455771A CN 200710145577 A CN200710145577 A CN 200710145577A CN 101166105 B CN101166105 B CN 101166105B
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Abstract
This invention relates to a method for inviting users on-line used in conference services including: 1, in a process of setting up conversation between a first user device and a second user device, the first one gets the route set for transmitting signaling when having conversation between them and registers it, 2, the first device transmits a request to the second device with a new conversation ID to a service device to ask the second device to take part in the meeting, when the route set is not empty, the first device adds the registered route set to the route set of the request, 3, the service device and the second user device are connected for the conversation.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of online user's invitation method that is used for convention business.
Background technology
IP (network interconnection agreement, Internet Protocol, be called for short IP) IP multimedia subsystem, IMS (IP Multimedia Core Network Subsystem, be called for short IMS) be by third generation partner program (3rd Generation Partnership Project, abbreviation 3GPP) a kind of IP-based network framework that proposes, made up an opening and service environment flexibly, supported multimedia application, can provide abundant multimedia service for the user.
In the IMS business system, key-course separates with operation layer, and key-course does not provide concrete business, and functions such as necessary triggering, route, charging only are provided to operation layer.Professional triggering and controlled function are CSCF (Call Session ControlFunction in the key-course, be called for short CSCF, be divided into and act on behalf of Proxy, inquiry Interrogating and serve three types of Serving, that wherein take the main responsibility is Serving, the Interrogating type is optional) finish, operation layer is by a series of application server (ApplicationServer, be called for short AS) form, concrete business service can be provided, AS can be an independent entity, also may reside among the S-CSCF.Key-course (S-CSCF) calls the business on the AS according to user's professional triggering of CAMEL-Subscription-Information control, realizes business function.AS and S-CSCF can be referred to as service equipment (SE, Server Equipment).Also has a kind of entity back-to-back user agent (B2BUA), it is when receiving conversation request, can initiate new request to purpose side as the agency, thereby make and have a plurality of session identifications on the signaling paths, for making follow-up request still can pass through it, it can be revised the contact address in the message or increase the route that requires in message.End-to-end equipment in the session is called user equipment (UE) (UserEquipment), is responsible for mutual with the user.These functional entitys use SIP (SessionInitiation Protocol) agreement communication.
Convention business is a kind of business among the IMS, and this business allows many people to converse simultaneously, and promptly a people speaks, and other people can both hear.
Fig. 1 is the flow chart that online user's message is invited in existing convention business, has described UE-A with UE-B converses, and then UE-A creates meeting and invites the process of UE-B adding, and its step is as follows:
Step S102, UE-A and UE-B have set up session connection, and do not have B2BUA on the signaling paths of session, so only have a session identification on this session signaling path.
Step S104, UE-A call-conference service equipment SE, meeting is created in request, such as sending INVITE (invitation) message.
Step S106, SE receives calling, creates meeting.
Step S108, SE successfully create meeting, to the UE-A answering call, and the success of expression conference creation, and return meeting identification, such as responding " 200 OK " message, in Contact (contact person) territory, the meeting address is set and is with " isfocus " mark.
Step S110 since then, sets up medium between UE-A and SE and is connected.
Step S112, UE-A sends to SE and invites UE-B to add the request of meeting, and the session between AB is replaced in requirement, to prevent that UE-B from returning the busy message of chance and causing inviting failure, such as sending REFER (transfer) message, in Refer-To (transferring to) territory, indicate the address of UE-B, and use the session identification that to replace on " Replaces " parameter band.
Step S114, SE receives request, agrees, responds " 202 Accepted " message.
Step S116, SE be according to the requirement of UE-A, invites UE-B, such as sending INVITE to UE-B, and indicates the session identification that will replace in Replaces (replacement) territory.
Step S118, UE-B receives INVITE, because of carrying the Replaces territory, does not return and meets busy message, but by indicating the session of replacing appointment in the Replaces territory, be replaced successfully the back answering call, such as returning " 200 OK " message.
Set up medium between step S120, UE-B and SE and be connected, by the bridge joint of SE, UE-A and UE-B can carry out conference call.
Could be successful when existing convention business invites online user's method not have B2BUA on the signaling paths of the session that will replace, in case there is B2BUA, and it does not revise the contact address, there are at least two session identifications on the session signaling link that then will replace, sure different with the UE-B side of UE-A side, therefore UE-B can not be familiar with the replacement session identification that the INVITE received carries, provide because this session identification is UE-A, thereby cause replacing failure and can't successfully invite.
Fig. 2 is the synoptic diagram that the online user is invited in existing convention business, described when between the AB session to have B2BUA, and it invites the situation of failure when not revising the contact address, and its step is as follows:
Step S202 sets up its session between UE-A and UE-B, have B2BUA in the signaling paths, and wherein the session identification between UE-A and B2BUA is D1.
Step S204, the session identification between B2BUA and UE-B are D2.
Step S206, after UE-A request convention business server S E set up meeting, UE-A invited UE-B to add to the SE request, and replaces already-existing session D1.
Step S208, SE invite UE-B to add meeting, and replace its original session D1.
Since then, UE-B receives the operation of inviting back execution replacement D1 session, but does not have the D1 session, can't finish replacement, invites failure.
Summary of the invention
One or more problems in view of the above, the present invention proposes a kind of online user's invitation method that is used for convention business, can solve the problem that the replacement failure not revising the contact address when having B2BUA in the prior art and finally cause can't successfully be invited.
The online user's invitation method that is used for convention business according to the present invention may further comprise the steps: step S302, set up in the process of session at first subscriber equipment and second subscriber equipment, first subscriber equipment transmits signaling when the message of transmission is obtained first subscriber equipment and second subscriber equipment and carried out session set of routes merges the record route set; Step S304, first subscriber equipment adds meeting to the request message that the convention business service equipment sends second subscriber equipment to ask second subscriber equipment with the new session sign, under the situation of route set non-NULL, first subscriber equipment joins the route set that is write down in the route set of request message; Step S306, the convention business service equipment and second subscriber equipment carry out session connection.
Wherein, the process that first subscriber equipment and second subscriber equipment are set up session comprises following at least a: first subscriber equipment is called out second subscriber equipment to set up session, and second subscriber equipment is called out first subscriber equipment to set up session.Request message comprises the invitation destination address, invites destination address to comprise user ID part and argument section.
In step S302, route set carries by the record routed domain.
In step S304, request message is a Transfer Message, and the route set of request message carries by routed domain.
In step S306, the IMS equipment by the request message process adopts third party's session control technology of standard to set up session connection between the convention business service equipment and second subscriber equipment.Request message is through the back-to-back user agent entity, the replacement session identification of the argument section of the invitation destination address in the back-to-back user agent entity modify request messages, and amended request message forwarded, to set up the session connection between the convention business service equipment and second subscriber equipment.Request message is through the back-to-back user agent entity, the back-to-back user agent entity is revised as the whole invitation destination address in the request message the special address of back-to-back user agent entity itself, and amended request message forwarded, to set up the session connection between the convention business service equipment and second subscriber equipment.Request message is through the back-to-back user agent entity, the back-to-back user agent entity partly is revised as the user ID of the invitation destination address of request message the contact address of back-to-back user agent entity itself, and amended request message forwarded, to set up the session connection between the convention business service equipment and second subscriber equipment.
By method of the present invention, solved the problem that the replacement failure not revising the contact address when having B2BUA in the prior art and finally cause can't successfully be invited.
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 flow chart that online user's message is invited in existing convention business;
Fig. 2 is the synoptic diagram that the online user is invited in existing convention business;
Fig. 3 is the flow chart that is used for online user's invitation method of convention business according to of the present invention;
Fig. 4 is the synoptic diagram (revise and replace session) of inviting the online user according to convention business of the present invention;
Fig. 5 is the flow chart (revise and replace session) of inviting online user's message according to convention business of the present invention;
Fig. 6 is the synoptic diagram (non-modification replacement session) of inviting the online user according to convention business of the present invention;
Fig. 7 is the flow chart (non-modification replacement session) of inviting online user's message according to convention business of the present invention;
Fig. 8 is the synoptic diagram (3PCC mode) of inviting the online user according to convention business of the present invention; And
Fig. 9 is the flow chart (3PCC mode) that online user's message is invited in convention business of the present invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
Fig. 3 is the flow chart that is used for online user's invitation method of convention business according to of the present invention.As shown in Figure 3, this method mainly may further comprise the steps:
S302, subscriber equipment A and subscriber equipment B if subscriber equipment A transmits the route set that requires by the signaling that message obtains this session, then remember this set in setting up the process of session.
S304, after subscriber equipment A sets up meeting, send a request message to the convention business service equipment, ask it to invite the other side to add meeting with the new session sign, if the route set non-NULL that writes down among the step S302, then subscriber equipment A joins this route set in the route set of this request message.
S306, network is realized the final invited user and the session connection of convention business service equipment.
Wherein, the session of subscriber equipment A and subscriber equipment B can be that subscriber equipment A calling user device B sets up among the step S302, also can be that subscriber equipment B calling user device A sets up.
The route set of the requirement among the step S302 carries by the Record-Route territory.
Request message among the step S304 is to shift (REFER) message, and the route set of message carries by the Route territory.
Among the step S306 network one of can be in the following manner or combination realize the session connection of invited user and convention business service equipment:
1. the IMS equipment of request message process adopts third party's session control (ThirdParty Call Control is called for short 3PCC) technology of standard to set up the session connection of convention business server and invited user;
2. request message is through B2BUA, and B2BUA is revised the replacement session identification of the argument section of inviting destination address, and promptly the Replaces parameter value in the Refer-To territory is transmitted this message then.
3. request message is through B2BUA, and B2BUA is revised the special address that whole invitation destination address is a B2BUA oneself, and the value in promptly whole Refer-To territory can find the session identification that will replace by this address, transmits this message then.
4. request message is through B2BUA, and B2BUA is revised and invited the user ID of destination address partly is the contact address of B2BUA oneself, i.e. user ID part in the Refer-To territory, and argument section remains unchanged, and transmits this message then.
Fig. 4 is the synoptic diagram (revise and replace session) that the online user is invited in convention business of the present invention, described when having B2BUA between the AB session, invite online user's request message under the requirement of route, to need through B2BUA, thereby can make the B2BUA revision replace session identification, realize successfully increasing the situation of conference member, its step is as follows:
Step S402 sets up its session between UE-A and UE-B, have B2BUA in the signaling paths, and wherein the session identification between UE-A and B2BUA is D1.
Step S404, the session identification between B2BUA and UE-B are D2.
Step S406, after UE-A request convention business server S E set up meeting, UE-A invited UE-B to add to the SE request, and replaces already-existing session D1, owing to increased the route to B2BUA, message travels B2BUA.
Step S408, B2BUA have revised the replacement session identification in the request, session is identified D1 change D2 into, transmit this message then.
Step S410, SE invite UE-B to add meeting, and replace its original session D2.
Since then, UE-B receives and invites the back to carry out the operation of replacing the D2 session, is replaced successfully, thereby invites successfully.
Fig. 5 is the flow chart (revise and replace session) that online user's message is invited in convention business of the present invention, described that UE-A and UE-B are conversing or UE-A is just waiting for the UE-B answering call, this session signaling path is through B2BUA, B2BUA has increased the routing iinformation that requires, make the subsequent request of this session will pass through B2BUA, then UE-A creates meeting and invites UE-B to add the process of meeting, and its step is as follows:
Step S502, UE-A and UE-B have set up session connection, or UE-A just waiting for the UE-B answering call, and has B2BUA on the signaling paths of session, and session has been divided into two sections, session identification between UE-A and B2BUA is D1, session identification between B2BUA and UE-B is D2, and for making this B2BUA of subsequent request process in this conversation procedure, B2BUA has increased the route that requires in message, require through this B2BUA, such as in the Record-Route territory of message.
Step S504, UE-A are with new session identifying call letters conference service equipment SE, and meeting is created in request, such as sending INVITE (invitation) message.
Step S506, SE receives calling, creates meeting.
Step S508, SE successfully create meeting, to the UE-A answering call, and the success of expression conference creation, and return meeting identification, such as responding " 200 OK " message, in Contact (contact person) territory, the meeting address is set and is with " isfocus " mark.
Step S510 since then, sets up medium between UE-A and SE and is connected.
Step S512, UE-A sends to SE and invites UE-B to add the request of meeting, and the D1 session is replaced in requirement, to prevent that UE-B from returning the busy message of chance and causing inviting failure, such as sending REFER (transfer) message, in Refer-To (transferring to) territory, indicate the address of UE-B, and the session identification that will replace on use " Replaces " parameter band, route set with the requirement of former AB session is increased in the route set simultaneously, thereby make B2BUA in route set, such as in the Route territory, increasing route set.
Step S514, because B2BUA is in route set, so this request message is by way of B2BUA, B2BUA will be replaced session identification and be revised as D2, and forward.
Step S516, SE receives request, agrees, responds " 202 Accepted " message.
Step S518 is receiveed the response and is passed to B2BUA along the reverse path of request, and B2BUA forwards the message to and reaches UE-A.
Step S520, SE be according to the requirement of UE-A, invites UE-B, and such as sending INVITE to UE-B, and to require to replace session identification be the session of D2, such as indicate the session identification that will replace in Replaces (replacement) territory.
Step S522, UE-B receives invitation message, because of carrying the replacement session identification, does not return and meets busy message, but by indicating the session of replacing appointment, be replaced successfully the back answering call, such as returning " 200 OK " message.
Set up medium between step S524, UE-B and SE and be connected, by the bridge joint of SE, UE-A and UE-B can carry out conference call.
Fig. 6 is the synoptic diagram (non-modification replacement session) that the online user is invited in convention business of the present invention, described when having B2BUA between the AB session, invite online user's request message under the requirement of route, to need through B2BUA, thereby can make the B2BUA revision invite destination address, realize successfully increasing the situation of conference member, its step is as follows:
Step S602～step S604 is identical with step S402～step S406 among Fig. 4.
Step S608, B2BUA has been revised the invitation destination address in the request, change invited party into B2BUA, transmit this message then, if revised the special address that whole invitation destination address is a B2BUA, then do not carry the replacement session identification, invite the user ID of destination address partly to be the contact address of B2BUA, then still carry and replace session identification D1 if only revised.
Step S610 is a B2BUA owing to revised the invitation destination address, and SE invites B2BUA to add meeting, if carried the replacement session identification among the step S608, then invitation message is also carried and replaced session identification D1, otherwise is not with the replacement session identification.
Step S612, if the destination address of the message that B2BUA is received is special address, message is not with the replacement session identification, then find corresponding truly by the session identification D2 of invited party according to this address, if the message band of receiving is replaced session identification D1, then find corresponding session identification D2, in the D2 session, use the re-INVITE technology to make UE-B and SE set up session connection then.
Fig. 7 is the flow chart (non-modification replacement session) that online user's message is invited in convention business of the present invention, described that UE-A and UE-B are conversing or UE-A is just waiting for the UE-B answering call, this session signaling path is through B2BUA, B2BUA has increased the routing iinformation that requires, make the subsequent request of this session will pass through B2BUA, then UE-A creates meeting and invites UE-B to add the process of meeting, and its step is as follows:
Step S702～step S712 is identical with step S502～step S512 of Fig. 5.
Step S714, because B2BUA is in route set, therefore this request message is by way of B2BUA, B2BUA changes whole invitation destination address into special address, make it point to oneself, thereby message is not with the replacement session identification, such as the value of revising whole Refer-To territory, then forwards is gone out, perhaps B2BUA will invite the user ID of destination address partly to be revised as the contact address of oneself, and argument section is constant, thereby the message band is replaced session identification D1,, then forwards is gone out partly for the Contact address of B2BUA such as the user ID of the value of only revising the Refer-To territory.
Step S716～step S718 is identical with step S516～step S518 of Fig. 5.
Step S720, SE calls out B2BUA according to the invitation destination address among the step S714, such as sending INVITE to B2BUA, if have the replacement session identification among the step S714, then carry in the message and replace session identification D1, such as in Replaces (replacement) territory, indicating the session identification that to replace.
Step S722, B2BUA is received message related to calls, if inviting destination address is special address, then find corresponding session identification D2 by this address, if inviting the address is not special address, then find corresponding session identification D2 by replacing session identification D1, B2BUA recall in the D2 session is asked to UE-B such as sending re-INVITE UE-B.
Step S724, UE-B receives message related to calls, answering call is such as responding " 200 OK " message.
Step S726, response message is by way of B2BUA, and B2BUA is transmitted this response message and is given SE.
Set up medium between step S728, UE-B and SE and be connected, by the bridge joint of SE, UE-A and UE-B can carry out conference call.
Fig. 8 is the synoptic diagram (3PCC mode) that the online user is invited in convention business of the present invention, described when having B2BUA between the AB session, the request message of inviting the online user is during through the IMS equipment on the AB session signaling path (is example with the B2BUA), this equipment uses the 3PCC technology to realize the session connection of convention business service equipment and invited user, and its step is as follows:
Step S802～step S804 is identical with step S402～step S404 among Fig. 4.
Step S806, after UE-A request convention business server S E set up meeting, UE-A invited UE-B to add to the SE request, and replaces already-existing session D1, and according to route set, certain IMS equipment in message travels AB session signaling path is such as B2BUA.
Step S808, B2BUA call-conference business service equipment.
Step S810, convention business service equipment answering call.
Step S812, B2BUA use re-INVITE technology recall on the AB session path and finally convention business service equipment and UE-B to be coupled together the session connection of realization between them UE-B.
The IMS equipment that this figure uses is example with B2BUA, but can be for other IMS equipment, such as AS or S-CSCF etc.
Fig. 9 is the flow chart (3PCC mode) that online user's message is invited in convention business of the present invention, described that UE-A and UE-B are conversing or UE-A is just waiting for the UE-B answering call, this session signaling path is through B2BUA, then UE-A creates meeting and invites UE-B to add meeting, IMS equipment on the AB session signaling path (is example with the B2BUA) adopts the 3PCC technology of standard to set up the process of the session connection between convention business service equipment and invited user, and its step is as follows:
Step S902～step S912 is identical with step S502～step S512 of Fig. 5.
Step S914, because B2BUA is in route set, so this request message is by way of B2BUA, B2BUA is acted on behalf of the request that the convention business server represents to agree UE-A, such as responding " 202 Accepted " message.
Step S916, B2BUA call-conference business service equipment SE is such as sending INVITE.
Step S918, the SE answering call is such as responding " 200 OK " message.
Step S920, B2BUA adopt the re-INVITE technology to call out UE-B again in the D2 session, such as sending re-INVITE message.
Step S922, UE-B receives message related to calls, answering call is such as responding " 200 OK " message.
Step S924, B2BUA realize the connection of two sections sessions, make to set up medium between UE-B and SE and be connected, and by the bridge joint of SE, UE-A and UE-B can carry out conference call.
The IMS equipment that this figure uses is example with B2BUA, but can be for other IMS equipment, such as AS or S-CSCF etc.
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 (9)
1. the online user's invitation method that is used for convention business is characterized in that, may further comprise the steps:
Step S302, set up in the process of session at first subscriber equipment and second subscriber equipment, described first subscriber equipment transmits signaling when the message of transmission is obtained described first subscriber equipment and described second subscriber equipment and carried out session set of routes merges the described route set of record;
Step S304, described first subscriber equipment adds meeting to the request message that the convention business service equipment sends described second subscriber equipment to ask described second subscriber equipment with the new session sign, under the situation of described route set non-NULL, described first subscriber equipment joins the route set that is write down in the route set of described request message;
Step S306, described convention business service equipment and described second subscriber equipment carry out session connection.
2. online user's invitation method according to claim 1, it is characterized in that, the process that described first subscriber equipment and described second subscriber equipment are set up session comprises following at least a: described first subscriber equipment is called out described second subscriber equipment to set up session, and described second subscriber equipment is called out described first subscriber equipment to set up session.
3. online user's invitation method according to claim 2 is characterized in that described request message comprises the invitation destination address, and described invitation destination address comprises user ID part and argument section.
4. online user's invitation method according to claim 3 is characterized in that, in described step S302, described route set carries by the record routed domain.
5. online user's invitation method according to claim 4 is characterized in that, in described step S304, described request message is Transfer Message, and the route set of described request message carries by routed domain.
6. according to each described online user's invitation method in the claim 1 to 5, it is characterized in that, in described step S306, the IMS equipment by described request message process adopts third party's session control technology of standard to set up session connection between described convention business service equipment and described second subscriber equipment.
7. according to each described online user's invitation method in the claim 1 to 5, it is characterized in that, in described step S306, described request message is through the back-to-back user agent entity, described back-to-back user agent entity is revised the replacement session identification of the argument section of the invitation destination address in the described request message, and amended request message forwarded, to set up the session connection between described convention business service equipment and described second subscriber equipment.
8. according to each described online user's invitation method in the claim 1 to 5, it is characterized in that, in described step S306, described request message is through the back-to-back user agent entity, described back-to-back user agent entity is revised as the whole invitation destination address in the described request message the special address of described back-to-back user agent entity itself, and amended request message forwarded, to set up the session connection between described convention business service equipment and described second subscriber equipment.
9. according to each described online user's invitation method in the claim 1 to 5, it is characterized in that, in described step S306, described request message is through the back-to-back user agent entity, described back-to-back user agent entity partly is revised as the user ID of the invitation destination address of described request message the contact address of described back-to-back user agent entity itself, and amended request message forwarded, to set up the session connection between described convention business service equipment and described second subscriber equipment.
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| CN2007101455771A CN101166105B (en) | 2007-08-28 | 2007-08-28 | Online user invitation method for conference service |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2934451B1 (en) * | 2008-07-25 | 2010-09-10 | Alcatel Lucent | ESTABLISHMENT AND CALL CONTROL BY THIRD PARTY EQUIPMENT. |
| CN101668008B (en) * | 2009-09-25 | 2012-09-05 | 华为技术有限公司 | Transfer operation-containing communication method, device and system |
| CN102291379B (en) * | 2010-06-18 | 2016-08-03 | 中兴通讯股份有限公司 | Meeting method for building up based on back-to-back user agent and system |
| CN105553678A (en) * | 2014-11-04 | 2016-05-04 | 阿尔卡特朗讯 | Method, equipment and system for conference routing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137715A (en) * | 1995-05-26 | 1996-12-11 | 美国电报电话Ipm公司 | Selective participation in multi-media communication conference call |
| US6188676B1 (en) * | 1997-10-14 | 2001-02-13 | Microsoft Corporation | Combined conferencing and calling |
| CN1360782A (en) * | 1999-05-10 | 2002-07-24 | 艾利森电话股份有限公司 | Distributed system to intelligenly establish sessions between anonymous users over various networks |
| CN1820506A (en) * | 2003-07-07 | 2006-08-16 | 泰德通信公司 | Automatic call routing |
-
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- 2007-08-28 CN CN2007101455771A patent/CN101166105B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137715A (en) * | 1995-05-26 | 1996-12-11 | 美国电报电话Ipm公司 | Selective participation in multi-media communication conference call |
| US6188676B1 (en) * | 1997-10-14 | 2001-02-13 | Microsoft Corporation | Combined conferencing and calling |
| CN1360782A (en) * | 1999-05-10 | 2002-07-24 | 艾利森电话股份有限公司 | Distributed system to intelligenly establish sessions between anonymous users over various networks |
| CN1820506A (en) * | 2003-07-07 | 2006-08-16 | 泰德通信公司 | Automatic call routing |
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