CN105282730A - Method and system for acquiring terminal communication state in IMS (IP multimedia subsystem) and application server - Google Patents
Method and system for acquiring terminal communication state in IMS (IP multimedia subsystem) and application server Download PDFInfo
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Abstract
The invention discloses a method and a system for acquiring the terminal communication state in an IMS (IP multimedia subsystem) and an application server, and relates to the technical field of IMS applications. The method comprises the steps that a terminal communication state acquisition platform sends a target terminal state subscription request to a multimedia telephone application server; the multimedia telephone application server acts as a terminal communication state information source and sends current communication state information of a target terminal to the terminal communication state acquisition platform; and the target terminal communication state changes, and the multimedia telephone application server sends target terminal communication state update information to the terminal communication state acquisition platform, thereby realizing that the terminal communication state acquisition platform acquires continuous communication state change information of the target terminal from the multimedia telephone application server in real time.
Description
Technical field
The present invention relates to IMS (IP Multimedia System) applied technical field, particularly relate to terminal communication state acquiring method and system and application server in a kind of IMS network.
Background technology
Pass through opening service capability, network capabilities is packaged into miscellaneous service controlling functions by operator, there is provided to service developer with the form of standard A PI (ApplicationProgrammingInterface, application programming interfaces), to improve the efficiency of business development.Along with deployment and the maturation of IMS network, the opening service capability of IMS network becomes the focus that operator and SP (ServiceProvider, service provider)/CP (ContentProvider, content supplier) pay close attention to.
Terminal communication state, i.e. terminal busy-idle condition are the basic capacities of IMS network, are also a kind ofly to possess the network capabilities being widely used application scenarios.Under usual state, people only know still can answering in call liking of oneself hope contact at the actual Shi Caineng of calling, if user needs the multiple people of subsequenct call within a period of time, and these people are conversing, be so time-consuming and invalid really for user.If user can know the communications status of the object of oneself desired contact in advance, so just can link up more efficiently.Such as, SOT state of termination is obtained and combines with the mobile phone of user or enterprise address book, address list will get the communicate status information of All Contacts's terminal, thus the busy-idle condition of mobile phone contacts all in user mobile phone or enterprise address book or enterprise's office telephone is presented in address list, mobile phone or enterprise address book will be made to have more intelligent.User can be facilitated to select suitable communication object, save the time of user, improve the communication efficiency of user, also save network channel resource simultaneously.As can be seen here, the opening of terminal communication state acquisition capability will be a kind of important technical foundation of business innovation.
The present inventor finds that in the state acquisition scheme in existing IMS, there are the following problems:
Presence (presenting) business in IMS, it is the instant messaging service of a kind of similar MSN (Microsoft's means of communication), QQ (Tengxun's chat tool), in this business, also existence obtains, namely Presence software client can obtain its good friend (being similarly Presence software client) and be distributed on state information on presence server, but this type of state information manually sets voluntarily for user, as " busy ", " leaving " etc., display be user's oneself state but not terminal communication state.These state informations are issued and are stored on presence server, presence server as status information data source, by state information notification terminal.This method is suitable for terminal type and is only the soft client containing Presence function, it is not communications status that the state information type comprised in status information data source is only the state that user arranges voluntarily, and the system and method for the state information acquisition therefore in Presence cannot be applicable to the acquisition of IMS terminal communications status.
Summary of the invention
The present inventor finds to have problems in above-mentioned prior art, and therefore proposes a kind of new technical scheme at least one problem in described problem.
An object of the present invention is to provide a kind of technical scheme obtained for terminal communication state in IMS network.
According to a first aspect of the invention, provide terminal communication state acquiring method in a kind of IMS network, comprising:
Mediaphone application server mediaphone application server receives the target terminal state subscription request from subscriber, and the request of target terminal state subscription comprises subscriber address and subscribes to the public subscriber identification of terminal use;
Mediaphone application server sends target terminal state notification message to subscriber, and target terminal state notification message comprises the Current Communications Status subscribing to terminal use;
If subscribe to the state changes of terminal use, then mediaphone application server sends target terminal communications status lastest imformation to subscriber.
Alternatively, terminal communication state preserved by mediaphone application server, as terminal communication presence source.
Alternatively, mediaphone application server receives the request of target terminal state subscription, the public subscriber identification of record subscriber address and subscription terminal use.
Alternatively, send the request of target terminal state subscription by sip subscribe (SUBSCRIBE) message to mediaphone application server, wherein, the parameter value of the event header field of SIPSUBSCRIBE message is set to communications status.
Alternatively, notify that (NOTIFY) message sends the communications status subscribing to terminal use to subscriber by SIP, wherein, the parameter value of the event header field of SIPNOTIFY message is set to call-status communications status;
Alternatively, sent the communications status subscribing to terminal use to subscriber by SIPNOTIFY message, wherein, the parameter value of the Content-Type message body content kind header field of SIPNOTIFY message is set to application/call-status communications status.
Alternatively, the method also comprises: S-CSCF receives SUBSCIRBE message, judges whether the Event event header field of SUBSCIRBE message is " call-status "; If so, then SUBSCIRBE message is directly forwarded to mediaphone application server by S-CSCF.
According to a further aspect in the invention, a kind of application server is provided, comprises:
Subscribe request receiver module, for receiving the target terminal state subscription request from subscriber, the request of target terminal state subscription comprises subscriber address and subscribes to the public subscriber identification of terminal use;
Notification message sending module, for sending target terminal state notification message to subscriber, target terminal state notification message comprises the Current Communications Status subscribing to terminal use;
State updating sending module, if the state changes for subscribing to terminal use, then sends target terminal communications status lastest imformation to subscriber.
Alternatively, this server also comprises information storage module; Information storage module for preserving terminal communication state, as terminal communication presence source; And/or information storage module is used for receiving the request of target terminal state subscription, the public subscriber identification of record subscriber address and subscription terminal use.
Alternatively, the request of target terminal state subscription is SIPSUBSCRIBE message, and wherein, the parameter value of the event header field of SIPSUBSCRIBE message is set to communications status.
Alternatively, target terminal state notification message is SIPNOTIFY message, and wherein, the parameter value of the event header field of SIPNOTIFY message is set to call-status communications status;
Or target terminal state notification message is SIPNOTIFY message, wherein, the parameter value of the Content-Type message body content kind header field of SIPNOTIFY message is set to application/call-status communications status.
According to another aspect of the invention, terminal communication state obtaining system in a kind of IMS network is provided, comprises above-mentioned application server.
An advantage of the present invention is, by the mode based on state subscription, target terminal state changes, mediaphone application server sends target terminal communications status lastest imformation, thus achieve terminal communication state plateau real-time obtain target terminal continuous print communications status change information from mediaphone application server.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, further feature of the present invention and advantage thereof will become clear.
Accompanying drawing explanation
What form a part for specification drawings describes embodiments of the invention, and together with the description for explaining principle of the present invention.
With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:
Fig. 1 is the flow chart of an embodiment according to terminal communication state acquiring method in IMS network of the present invention;
Fig. 2 is the structure chart of an embodiment according to terminal communication state obtaining system in IMS network of the present invention;
Fig. 3 is the flow chart according to another embodiment of terminal communication state acquiring method in IMS network of the present invention;
Fig. 4 is the structure chart of an embodiment of application according to the present invention server;
Fig. 5 is the structure chart of another embodiment of application according to the present invention server.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 is the flow chart of an embodiment according to terminal communication state acquiring method in IMS network of the present invention.
As shown in Figure 1, step 102, MMTELAS (MultimediaTelephonyApplicationServer, mediaphone application server) receive from the target terminal state subscription request of subscriber, this target terminal state subscription request comprises subscriber address and subscribes to the public subscriber identification (PublicUserIdentity, PUID) of terminal use.In one embodiment, terminal communication state obtains platform and sends the request of target terminal state subscription as subscriber to MMTELAS.
Step 104, MMTELAS sends target terminal state notification message to subscriber, and target terminal state notification message comprises the Current Communications Status subscribing to terminal use.
Step 106, if the state changes subscribing to terminal use, then MMTELAS sends target terminal communications status lastest imformation to subscriber.
In IMS network, all types of terminal per call initiating or receive all can through the upper talking state of preserving terminal of MMTELAS, MMTELAS, until end of calling.In above-described embodiment, with the MMTELAS in IMS network for terminal communication status information data source, achieve acquisition and the opening of terminal communication state in IMS network, and target terminal continuous print communications status change information can be obtained.
In one embodiment, terminal communication state obtains platform based on the SIP (SessionInitialProtocol after expansion, Session initiation Protocol) SUBSCRIBE (subscription) and NOTIFY (notice) method, in the impregnable situation of terminal, obtain its target terminal continuous print communications status change information from MMTELAS.One comprises the expansion that SIPSUBSCRIBE method and NOTIFY method are carried out for communicate status information:
To Event (event) header field in SUBSCRIBE and NOTIFY, extend the corresponding parameter value " call-status (communications status) " of terminal communication state event, when the parameter value of Event header field is set to call-status, represent that this information of subscribing to is terminal communication state;
To Content-Type (message body content kind) header field in NOTIFY, extend parameter value corresponding to terminal communication state information " application/call-status ", represent that this information notified is terminal communication state information;
To the body (message body) of NOTIFY, extend parameter value " idle " (spare time) and " busy " (doing) of message body parameter call-status corresponding to terminal communication state information and correspondence thereof.When the call-status value in NOTIFY body is idle, represent that telex network state is for putting the spare time; When the call-status value in NOTIFY body is busy, represent that telex network state is busy for putting.
Fig. 2 is the structure chart of an embodiment according to terminal communication state obtaining system in IMS network of the present invention.As shown in Figure 2, for coordinating the realization of business route grappling function, the major function of each network element node is as follows:
(1) terminal communication state obtains platform 21
Perform the acquisition function of IMS terminal communicate status information, and obtained state information is used for business development or open to third party CP/SP.
(2)I-CSCF22
I-CSCF (InterrogatingCallSessionControlFunction, Proxy Call Session Control Function) provides the registration service of terminal and relevant routing function.
The sip message routing function of I-CSCF comprises:
According to the current S-CSCF information providing service for user obtained from HSS (HomeSubscriberServer, home subscriber server), this S-CSCF will be forwarded to Client-initiated SIP request.
(3)HSS23
HSS need save as the S-CSCF information of registered user's service.When user receives SIP request, I-CSCF by inquiry HSS can be known as user service S-CSCF information, with by this request forward to S-CSCF.
(4)S-CSCF24
S-CSCF (ServingCallSessionControlFunction, service call conversation control function) provides the functions such as the registration service of terminal, session control, relevant routing and business triggering, and maintains session state information.
The sip message routing function of S-CSCF comprises:
S-CSCF receive SUBSCIRBE message and Event header field wherein for " call-status " time, directly this message is forwarded to MMTELAS.
(5)MMTELAS25
The per call that in IMS, all types of terminal is initiated or received all can through the talking state of MMTELAS, MMTELAS upper preservation terminal until end of calling.Therefore, MMTELAS, as terminal communication status information data source, provides user terminal communication state information for state obtains platform.
When opening service capability gateway (or some wishes business platform, terminal of obtaining terminal communication state) need to obtain certain/communications status of some IMS terminal time, MMTELAS to this user terminal place sends SUBSCRIBE message, requires the communications status event of subscribing to terminal.In this SUBSCRIBE message:
From territory and To territory are the public subscriber identification (PublicUserIdentity) needing to subscribe to terminal use;
The value of Event header field is " call-status " of expansion, represents the communications status of the terminal that pulls subscription;
Expires header field, with the time of Subscribe subscription expires, will need to send Subscribe message again and keep subscribing to before subscription expires, represent that cancelling communications status subscribes to when Expires header field is 0.
When I-CSCF receives the SUBSCRIBE state subscription request that opening service capability gateway (or some business platform) sends, according to the From/To territory in message, inquiry HSS knows this user place S-CSCF information, then SUBSCRIBE message is sent to this S-CSCF.
S-CSCF receives SUBSCRIBE message, according to communications status event instruction " call-status " in Event header field, message is forwarded to communications state data source MMTELAS.
MMTElAS subscribes to SUBSCRIBE message to communications status and returns 202Accept response, and according to communications status event instruction " call-status " in Event header field, return NOTIFY, notify the telex network state of subscriber's (opening service capability gateway or business platform) ordered by it.In this message:
The value of Subscription-State header field is active, represents that this subscription is in the state of going through;
The value of Content-Type header field is " application/call-status " of expansion, represents that the information of notice is terminal communication state information;
If user converses.Parameter " call-status " the assignment value expanded in message body is " busy " (hurrying); If user does not put the spare time in call, parameter " call-status " assignment expanded in message body is " idle " (spare time).
Fig. 3 is the flow chart according to another embodiment of terminal communication state acquiring method in IMS network of the present invention.
As shown in Figure 3, step 301, when terminal communication state obtain platform (as, opening service capability gateway or some wish the business platform obtaining terminal communication state) need to obtain certain/communications status of some IMS terminal time, send SUBSCRIBE message, to require the communications status event of subscribing to terminal.In this message:
From territory and To territory are the public subscriber identification needing to subscribe to terminal use;
The value of Event header field is " call-status " of expansion, represents the communications status of the terminal that pulls subscription;
Expires header field, with the time of Subscribe subscription expires, will need to send Subscribe message again and keep subscribing to before subscription expires, represent that cancelling communications status subscribes to when Expires header field is 0.
This SUBSCRIBE message examples is as follows:
SUBSCRIBEsip:useradomain.comSIP/2.0
Via:SIP/2.0/TCP192.0.2.41；branch＝z9hG4bK6d6a
Max-Forwards:70
From:<sip:useradomain.com>；tag＝123456
To:<sip:useradomain.com>
Call-ID:3573853342923422192.0.2.44
CSeq:2131SUBSCRIBE
Event:call-status
Contact:sip:1234192.0.2.44
Content-Length:0
Step 302, when I-CSCF receives the SUBSCRIBE state subscription request that opening service capability gateway (or some business platform) sends, according to the From/To territory in message, inquiry HSS knows this user place S-CSCF information, then SUBSCRIBE message is sent to this S-CSCF;
Step 303, S-CSCF receives SUBSCRIBE message, according to communications status event instruction " call-status " in Event header field, message is forwarded to communications state data source MMTELAS;
Step 304 ~ 306, MMTElAS subscribes to SUBSCRIBE message to communications status and returns 202Accept response;
Step 307 ~ 309, MMTELAS, according to communications status event instruction " call-status " in Event header field, returns NOTIFY, notifies that the user of subscriber's (opening service capability gateway or business platform) ordered by it converses.In this message:
The value of Subscription-State header field is active, represents that this subscription is in the state of going through;
The value of Content-Type header field is " application/call-status " of expansion, represents that the information of notice is terminal communication state information;
Be the parameter " call-status " of expansion in message body, the parameter value of its correspondence is " busy " (hurrying), represents that user converses.
This NOTIFY example is as follows:
NOTIFYsip:1234192.0.2.44SIP/2.0
Via:SIP/2.0/TCP192.0.2.41；branch＝z9hG4bK6d6a
From:<sip:useradomain.com>；tag＝123456
To:<sip:useradomain.com>
Call-ID:3573853342923422192.0.2.44
CSeq:322NOTIFY
Event:call-status
Content-Type:application/callstatus
Call-status：busy
Step 310 ~ 312, terminal communication state obtains platform and returns 200OK message, represents the communicate status information having received ordered terminal;
Step 313 ~ 315, user's on-hook after call, MMTElAS obtains platform to terminal communication state and returns NOTIFY, notifies that the telex network state of subscriber ordered by it changes.In this message:
Be the parameter " call-status " of expansion in message body, the parameter value of its correspondence is " idle " (spare time), represents that user's communication terminates to put the spare time.
This NOTIFY example is as follows:
NOTIFYsip:1234192.0.2.44SIP/2.0
Via:SIP/2.0/TCP192.0.2.41；branch＝z9hG4bK6d6a
From:<sip:useradomain.com>；tag＝123456
To:<sip:useradomain.com>
Call-ID:3573853342923422192.0.2.44
CSeq:323NOTIFY
Event:call-status
Content-Type:application/callstatus
Call-status：idle
Step 316 ~ 318, terminal communication state obtains platform and returns 200OK message, represents the renewal having received the communicate status information of ordered terminal.
In one embodiment, S-CSCF when receiving SUBSCIRBE message, if determine that Event header field is " call-status ", the then direct routing function this message being forwarded to MMTELAS.Generally, when S-CSCF carries out message forwarding to MMTELAS, need that corresponding iFC (initialFilterCriteria, filter criteria time initial) is carried out to user and contract.The user being acquired communications status is random, if still adopt above method, just need to contract for all IMS users carry out corresponding iFC (initialFilterCriteria, filter criteria time initial), this workload is huge.By above-mentioned scheme, S-CSCF can be avoided to be that all IMS users contract.
Fig. 4 is the structure chart of an embodiment of application according to the present invention server.As shown in Figure 4, this application server comprises:
Subscribe request receiver module 41, for receiving the target terminal state subscription request from subscriber, the request of target terminal state subscription comprises subscriber address and subscribes to the public subscriber identification of terminal use;
Notification message sending module 42, for sending target terminal state notification message to subscriber, target terminal state notification message comprises the Current Communications Status subscribing to terminal use;
State updating sending module 43, if the state changes for subscribing to terminal use, then sends target terminal communications status lastest imformation to subscriber.
Fig. 5 is the structure chart of another embodiment of application according to the present invention server.As shown in Figure 5, information storage module 54 is also comprised in this embodiment.
Information storage module 54 for preserving terminal communication state, as terminal communication presence source; And/or for receiving the request of target terminal state subscription, record the public subscriber identification of described subscriber address and described subscription terminal use.
In an embodiment, the request of target terminal state subscription is SIPSUBSCRIBE message, and wherein, the parameter value of the event header field of SIPSUBSCRIBE message is set to communications status.Target terminal state notification message is SIPNOTIFY message, and wherein, the parameter value of the event header field of SIPNOTIFY message is set to call-status communications status; Or target terminal state notification message is SIPNOTIFY message, wherein, the parameter value of the Content-Type message body content kind header field of SIPNOTIFY message is set to application/call-status communications status.
In prior art, need operator to build proprietary signaling monitoring system and preserve terminal communication state, if other operation systems will need to know telex network state, active inquiry is carried out to this system with MAP with regard to needs, if obtain the continuity change of terminal communication state, just new MAP inquiry constantly must be initiated.
Technical scheme of the present disclosure, has following one or more advantage: the system that (1) does not need special construction new, but subscribes to directly to the network element in network; (2) mode that have employed subscribing notification carries out state acquisition, and this mode can " once be subscribed to, repeatedly return ", as long as communications status changes, will return the change of NOTIFY notify status immediately.
Scheme of the present disclosure can be extrapolated to all sights needing terminal communication state to obtain in IMS network, achieves the demand that IMS terminal communicate status information is open.
So far, described in detail according to terminal communication state obtaining system, method and server in IMS network of the present invention.In order to avoid covering design of the present invention, details more known in the field are not described.Those skilled in the art, according to description above, can understand how to implement technical scheme disclosed herein completely.
Method and system of the present invention may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
Although be described in detail specific embodiments more of the present invention by example, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above embodiment be modified.Scope of the present invention is limited by claims.
Claims (11)
1. a terminal communication state acquiring method in IP Multimedia System IMS network, is characterized in that, comprising:
Mediaphone application server receives the target terminal state subscription request from subscriber, and the request of described target terminal state subscription comprises subscriber address and subscribes to the public subscriber identification of terminal use;
Described mediaphone application server sends target terminal state notification message to described subscriber, and described target terminal state notification message comprises the Current Communications Status of described subscription terminal use;
If the state changes of described subscription terminal use, then described mediaphone application server sends target terminal communications status lastest imformation to described subscriber.
2. method according to claim 1, is characterized in that, terminal communication state preserved by described mediaphone application server, as terminal communication presence source;
And/or
After described mediaphone application server receives the request of described target terminal state subscription, record the public subscriber identification of described subscriber address and described subscription terminal use.
3. method according to claim 1, it is characterized in that, send the request of target terminal state subscription by Session initiation Protocol sip subscribe message to described mediaphone application server, wherein, the parameter value of the event header field of described sip subscribe message is set to call-status.
4. the method according to claim 1 or 3, is characterized in that, sent the communications status of described subscription terminal use to described subscriber by SIP notification message, wherein, the parameter value of the event header field of described SIP notification message is set to call-status;
Or,
Sent the communications status of described subscription terminal use to described subscriber by SIP notification message, wherein, the parameter value of the Content-Type message body content kind header field of described SIP notification message is set to application/call-status.
5. method according to claim 3, is characterized in that, also comprises:
Service call conversation control function S-CSCF receives sip subscribe message, judges whether the Event event header field of described sip subscribe message is call-status;
If so, then described sip subscribe message is directly forwarded to described mediaphone application server by S-CSCF.
6. an application server, is characterized in that, comprising:
Subscribe request receiver module, for receiving the target terminal state subscription request from subscriber, the request of described target terminal state subscription comprises subscriber address and subscribes to the public subscriber identification of terminal use;
Notification message sending module, for sending target terminal state notification message to described subscriber, described target terminal state notification message comprises the Current Communications Status of described subscription terminal use;
State updating sending module, if for the described state changes subscribing to terminal use, then send target terminal communications status lastest imformation to described subscriber.
7. server according to claim 6, is characterized in that, also comprises information storage module;
Described information storage module for preserving terminal communication state, as terminal communication presence source;
And/or
Described information storage module is used for receiving the request of described target terminal state subscription, records the public subscriber identification of described subscriber address and described subscription terminal use.
8. server according to claim 6, is characterized in that, the request of described target terminal state subscription is sip subscribe message, and wherein, the parameter value of the event header field of described sip subscribe message is set to call-status.
9. the server according to claim 6 or 8, is characterized in that, described target terminal state notification message is SIP notification message, and wherein, the parameter value of the event header field of described SIP notification message is set to call-status;
Or,
Described target terminal state notification message is SIP notification message, and wherein, the parameter value of the Content-Type message body content kind header field of described SIP notification message is set to application/call-status.
10. a terminal communication state obtaining system in IP Multimedia System IMS network, is characterized in that, comprises as the application server in claim 6-9 as described in any one.
11. systems according to claim 10, is characterized in that, also comprise service call conversation control function S-CSCF; Described S-CSCF is for judging whether the Event event header field of the described sip subscribe message received is call-status; If so, then direct described sip subscribe message is forwarded to described mediaphone application server.
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| CN110856125A (en) * | 2018-08-20 | 2020-02-28 | 中国电信股份有限公司 | Short message retransmission method and device and converged short message center |
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