CN101115073A - Conversation release method and system of PoC service - Google Patents

Conversation release method and system of PoC service Download PDF

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Publication number
CN101115073A
CN101115073A CNA2007101546041A CN200710154604A CN101115073A CN 101115073 A CN101115073 A CN 101115073A CN A2007101546041 A CNA2007101546041 A CN A2007101546041A CN 200710154604 A CN200710154604 A CN 200710154604A CN 101115073 A CN101115073 A CN 101115073A
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session
message
poc
poc server
strategy
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景伟东
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ZTE Corp
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ZTE Corp
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Abstract

The invention provides a method and a system of conversation release in PoC business. The method of the invention comprises the following steps: step one, a PoC server is provided with a strategy of the conversation release, a judging strategy of the conversation release and a configuration identification of the conversation release; step two, according to the device of the configuration identification of the conversation release, the PoC server tests a conversation to accord with the strategy of the conversation release and sends out the consulting message of the end of the conversation to a PoC client of the conversation; step three, when receiving the message of consulting the end of the conversation, the PoC client sends response message of the end of the conversation to the PoC server according to the indications of users; and step four, when receiving the response news of the end of the conversation, the PoC server determines whether to release the conversation according to the judging strategy of the conversation release. Therefore, by using the invention, the PoC session service can be controlled and the conversation can be more reasonably ended, so that user time can not be detained and the server resources are saved.

Description

The conversation release method of PoC service and system
Technical field
The present invention relates to mobile communication technology, more specifically, relate to a kind of conversation release method and system of PoC service.
Background technology
(Push to Talk, PTT) business is called honeycomb push-to-talk (Push-to-Talk Over Cellular, PoC) business based on the PoC of public's cellular mobile communication networks.(Internet Protocol, (Voice overInternet Protocol, VoIP) technology realizes PTT to PoC service in IP) voice service by the half-duplex network agreement.Simultaneously, PoC also combines instant message, presents service attributes such as (Presence, the presence business is a kind of service enabler, is not essential function in PoC service), is a kind of individual business that combines speech and data.
PoC is a kind of two-way, instant, multi-party communication mode, allows user and one or more user to communicate.And this service class is like mobile intercommunication business, and the user by button and certain user's communication or the participant that is broadcast to a group there.Behind this spoken voice of recipient's uppick, can for example not reply this calling without any action, perhaps before hearing transmit leg sound, notify and necessary this calling of reception.After this initial speech was finished, other participants can respond this speech message.PoC communication is semiduplex, and people's speech can only be arranged at most at every turn, and other people answer.
PoC service is the business of a kind of client to type of server, mainly constitute by PoC server and PoC client, simultaneously (eXtensible Markup Language, XML) file management combines provides professional with presence service and extending mark language.The realization of PoC service needs functions such as discovery/registration, authentication/mandate, safety and charging to support.
Move open alliance (Open Mobile Alliance in PoC system standard OMA), has described the PoC client and server, and with the interface of some engine.The main functional entity of realizing PoC in this structure is PoC client (Client), PoC server (Server) and SIP/IP core (Core).
(1)PoC?Client
PoC Client resides in the portable terminal and is used to insert PoC service, and PoC Client supports session to initiate, participate in, terminate; Execution is in conversation initialized protocol/procotol (Session Initiation Protocol/Intemet Protocol, the SIP/IP) registration in the core network; Authentication to the PoC user that inserts the SIP/IP core network; By audio recording and coding, found, send and receive Talk burst; Support the ruling program (for example initiating request and corresponding order) of Talk burst; Merging is by management system loading of configuration data (for example air interface activation).
(2)PoC?Server
PoC Server provides the control that the network function of application layer, PoC Server can carry out PoC or participates in function for PoC service, but these two kinds of functions have different roles and effect.The controlled function of server provides concentrated PoC session operation; Concentrated distribution of media is provided; Concentrated right to speak controlled function (comprising talker's identification) is provided; SIP session operation (as the startup of SIP session, termination etc.) is provided; For cluster conversation provides strategy execution; Participant's information is provided; Collect and provide concentrated media quality information; Concentrated charging report is provided; Participant PoC is provided the privacy function of address; Support user plane to adapt to program; Support functions such as Talk Burst agreement control negotiation.The PoC of server participates in function simultaneously, provides PoC session to control; Support the procedure of adaptation of user plane; Provide the SIP session to handle (, being responsible for representing client) as SIP session initiation, termination etc.; The strategy execution (for example access control, upstate etc.) of calling PoC is provided; Participant's charging report is provided; Support the negotiations process of Talk Burst control protocol: storage PoC client's answer-mode, terminating call barred indication, instant notice are forbidden functions such as information such as indication.
(3)SIP/IP?core
SIP/IPcore comprises some sip agents and SIP logger, mainly is route SIP signaling between PoCclient and server.And provide search and address resolution service; Support the SIP compression; Based on user's configuration, carry out authentication and mandate (to PoCclient); Safeguard logging status; Provide identifying the support of privacy at control plane; Charge information is provided; Functions such as Lawful Interception are provided.
At first, control type PoC server (Control PoC Server) is the main control device of PoC session, according to the PoC service standard of OMA, can be divided into the PoC session type following several:
Session one to one (1-1 PoC Session);
One-to-many cluster conversation (1-many PoC Group Session);
One-to-many is to a cluster conversation (1-many-1 PoC Group Session);
Interim cluster conversation (Ad-hoc PoC Group Session);
Predefine cluster conversation (Pre-arranged PoC Group Session); And
Chat sessions (Chat PoC Group Session).
Secondly, according to OMA PoC service proposed specifications, when satisfying, following condition discharges session:
The session promoter leaves session;
The participant of appointment () leaves session;
Participant's quantity of session is less than certain specific value;
Time is up to be pre-assigned to session; And
Have only machine (nobody) participating in session.
Fig. 1 is based on the network diagram of the PoC service of SIP/IP network.In PoC network shown in Figure 1, following capital equipment is arranged:
Display server (Presence server) 102, it is the kernel entity that the Presence technology is achieved, be the functional entity that receives, stores and distribute presence information and distribution watcher information, can obtain presence information from a plurality of user agents, network agent; And rule that can be definite according to information model, relevant certain presence information that presents body that receives from one or more Presence source is combined into a single document, and can manage in system, under the assurable situation of privacy of user, according to pre-determined rule, allow other observer's active inquiry or subscribe to presence information, in addition, presence server can be subscribed to and be stored in the variation of sharing document on XDMS and the Presence XDMS, and can obtain the document of sharing on XDMS and the Presence XDMS, say briefly, presence server is mainly finished following two functions: (1) message pick-up, presence server should receive the presence information from a plurality of user agents and network agent, and according to the informix one-tenth a unified information of certain rule with all sources; And (2) information subscribing is handled, the subscribed person institute requirement as " informant " can be accepted and handle to presence server, also can accept and handle subscriber institute requirement as " information requester ", wherein, booking reader's presence information asks presence server exactly under which kind of situation, automatically which presence information with the user sends over, can subscribe to mutually between the user, be commonly referred to the good friend, the user who sends subscribe request is called the subscriber, and subscribed user is called subscribed person;
Sharing XML document management server (Shared XDMS) 104, is the server of the XML document shared of other business of storage, and the management to shared XML document is provided.Share the XDM document management server and support XCAP agreement and URI tabulation, and the secure communication between support and the XDM client, and after XML document changed, the XDM document management server can be notified the renewal of XDM client about document;
Aggregation Proxy (Aggregation Proxy) 106, it is the XDM client realizes inserting the XML document on the XDM server at subscriber equipment contact point, also can be described as an acting server between XDM client and the XDM server, major function has the authentication of execution to the XDM client, route XCAP asks correct XDM server, support to charge (optional), support compression/decompression (optional) at wave point;
Network PoC box (NW PoC Box) 108 is used for depositing PoC session data and PoC session control data in the PoC network;
SIP/IP core net (SIP/IP Core) 110, it is the network of a server, as agency or register, they are carried out different business and support the XDM business, for example route, authentication, compression etc., different SIP/IP Core networks have different features, and present SIP/IPCore mainly refers to the IMS network, and the IMS network provides following function to support the XDM business: (1) transmits the SIP signaling between XDM client and XDM server; (2) provide discovery and address resolution business; (3) support the SIP compression; (4) service profile by the user is realized the authentication and the mandate of XDM client; (5) keep the state of registration; And (6) provide charge information; And
XDM client (XDMC) 112 is used for managing the client of XML document, can increase, the data in the deletion, modification, Query XML document management server, as URI tabulation, Affiliates List tabulation.
Wherein, XML configuration access agreement (XCAP) is used the XCAP agreement data that visit XDMS based on http protocol.
Fig. 2 is the logic diagram of the call release detection module of PoC server in the prior art.As shown in Figure 2, may further comprise the steps:
S202, the detection module of control PoC server detects the release strategy of this session;
S204, if this session does not meet the condition that discharges strategy, then the flow process of detection module finishes, and if this session meets the condition that discharges strategy, then detection module enters next step.
S206, control PoC server sends BYE message to current all participants of this session;
S208, under the normal condition, current all participants of this session receive above-mentioned BYE message, and the PoC terminal sends OK to control PoC server and replys, and control PoC server receives that the OK of all PoC terminals replys, and the PoC terminal discharges session and Session Resources; And
S210: control PoC server begins to discharge session, enters release module, discharges resource, end process, finishes this session status machine.
Fig. 3 is the schematic diagram of the release session of PoC service in the prior art, and as shown in Figure 3, if reach the condition of the release conversation strategy of setting, control PoC server sends BYE message to the PoC terminal, and then, the PoC terminal is replied to control PoC server acknowledge OK.
The signaling process figure of the release session of PoC service in Fig. 4 prior art.As shown in Figure 4, at first, if detecting the situation of current sessions, the detection module of PoC Server A meets predefined release strategy, then PoC Server A initiates to discharge the session operation, PoCServer A sends SIP BYE message to this session participant, the SIP/IP network A is given the SIP/IP network B with SIP BYE forwards then, and the SIP/IP network also B give PoC Server B with the SIPBYE forwards.
Next, PoC Server B responds SIP BYE message and gives the SIP/IP network B, wherein, when PoC Server B receives SIP BYE message, discharges processing module and begins following processing:
One, between terminal B and control PoC Server A, stops forwarding TBCP message, RTP medium and RTCP message; And
Two, at user plane, server finishes any relevant process of this session and state machine.
Then, PoC Server B responds SIP BYE message and gives the SIP/IP network B.
The SIP/IP network B is transmitted SIP BYE message, when terminal B receives SIP BYE message, discharges processing module and starts working, and is divided into following two steps:
One, stops to send TBCP message, stop to send, playing the RTP medium; And
If two control planes determine to discharge this PoC session, then the control state machine of corresponding PoC session example is also ended.
Then, terminal B responds SIP OK to the SIP/IP network and replys, the SIPAP network B is replied SIP OK and is transmitted to PoC Server B, PoC Server B responds SIP OK to the SIP/IP network and replys, the SIP/IP network B is replied SIP OK and is transmitted to the SIP/IP network A, and the SIP/IP network A is replied to PoC Server A response SIP OK.
Thereby, for the condition that discharges session, as, the session promoter leaves session, and this session will finish, and has defective like this.Suppose, a session well afoot, the session promoter leaves session, and other participants in the session will be forced to end session and withdraw from.Withdraw from session if the session promoter is passive because of fault, arrearage or misoperation, control type PoC server is forced the release session just according to the rule that discharges session so.
Like this, for the session promoter, when he land again, when asking to add session, session has not but existed; For other participants, the session that unexpectedly just is through with, user experience poor effect.If rebulid session, original session promoter also will initiate once new session again, re-invite original participant, and such way has delayed user's time, the resource of having wasted server.
Summary of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of conversation release method and system of PoC service, be used for the detection module of the end session of PoC server is carried out the function adjustment, make more reasonably end session of detection module.
The invention provides a kind of conversation release method of PoC service, may further comprise the steps: step 1, in the PoC server, configuration session discharges strategy and session discharges determination strategy, and session release configuration identifier is set; Step 2, according to the setting of session release configuration identifier, session of PoC server detection meets session release strategy and sends conversation end to the PoC of session client and seek the opinion of message; Step 3, when receiving conversation end when seeking the opinion of message, the PoC client is indicated according to the user and is sent the conversation end response message to the PoC server; And step 4, when receiving the conversation end response message, the PoC server discharges determination strategy according to session and determines whether to discharge session.
Wherein, session discharge configuration identifier be dispose on the system level of PoC server or on the session-level of each session on the PoC server, dispose.
Session release configuration identifier is set to be comprised: session is discharged configuration identifier carry out assignment, wherein, when session release configuration identifier is 1, the expression session meets session release strategy and will send conversation end and seek the opinion of message, and when session release configuration identifier is 0, when representing that described session meets described session and discharges strategy, the PoC server will directly discharge session.
Carry out following the processing in step 2: when session discharged configuration identifier and is 1, the PoC server detected a session and meets session and discharge strategy, and to message of the PoC of session client transmission, wherein, message can comprise that conversation end seeks the opinion of message.
Handle below carrying out in step 3: when receiving message, the PoC client is sent acknowledge message to the PoC server; The PoC client is resolved message, thereby determines whether message is that conversation end is seeked the opinion of message; When definite message is conversation end when seeking the opinion of message, PoC Client-Prompt user confirms whether to discharge session; And according to user's indication, the PoC client finishes response message with session and sends to the PoC server.
In addition, handle below also carrying out in step 3: surpass the timer predetermined confined during time when the user confirms the time that whether discharges session, the PoC client is obtained acquiescence and is selected; And according to the acquiescence selection, the PoC client finishes response message with session and sends to the PoC server.
Wherein, session release determination strategy comprises the system of voting.Session discharges configuration identifier when representing to reach session that session discharges strategy and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.Session discharges configuration identifier when representing to detect session and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.
The present invention also provides a kind of session delivery system of PoC service, comprising: the policy configurations device, be arranged in the PoC server, and be used for configuration session and discharge strategy and session release determination strategy, and session release configuration identifier is set; The message dispensing device is arranged in the PoC server, is used for discharging according to described session the setting of configuration identifier, detects a session and meets described session and discharge tactful and send conversation end to the PoC of session client and seek the opinion of message; Message receiving apparatus is arranged in the PoC client, is used for indicating according to the user to send the conversation end response message to the PoC server when receiving conversation end that the message dispensing device sends when seeking the opinion of message; And judgment means, be arranged in the PoC server, be used for when receiving the conversation end response message that message receiving apparatus returns, discharge determination strategy according to session and determine whether to discharge session.
Wherein, session discharge configuration identifier be dispose on the system level of PoC server or on the session-level of each session on the PoC server, dispose.
The policy configurations device is used for that also session is discharged configuration identifier and carries out assignment, wherein, when session release configuration identifier is 1, the expression session meets session release strategy and will send conversation end and seek the opinion of message, and when session release configuration identifier is 0, when the expression session meets session release strategy, the PoC server will directly discharge session.
In the message dispensing device, comprise: sending module, be used for when session release configuration identifier is 1, meet session release strategy, send message to the PoC of session client if the PoC server detects a session, wherein, message can comprise that conversation end seeks the opinion of message.
In message receiving apparatus, comprise: confirm module, be used for when receiving message, send acknowledge message to the PoC server; Resolve determination module, be used for message is resolved, thereby determine whether message is that conversation end is seeked the opinion of message; User prompt module, be used for when definite message be conversation end when seeking the opinion of message, the prompting user confirms whether to discharge session; And forwarding module, be used for indication according to the user, session is finished response message send to the PoC server.
In message receiving apparatus, also comprise: the default setting acquisition module, be used for surpassing the timer predetermined confined during time when the user confirms the time that whether discharges session, obtain acquiescence and select, and select, session is finished response message send to the PoC server according to acquiescence.
Wherein, session release determination strategy comprises the system of voting.Session discharges configuration identifier when representing to reach session that session discharges strategy and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.Session discharges configuration identifier when representing to detect session and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.
Thereby, adopting method and system of the present invention, can control the PoC session business, end session more reasonably, thus can not delay user time, and saved server resource.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is based on the network diagram of the PoC service of SIP/IP network;
Fig. 2 is the logic diagram of the call release detection module of PoC server in the prior art;
Fig. 3 is the schematic diagram of the release session of PoC service in the prior art;
Fig. 4 is the signaling process figure of the release session of PoC service in the prior art;
Fig. 5 is the flow chart according to the conversation release method of PoC service of the present invention;
Fig. 6 is the logical flow chart according to the call release detection module of the PoC server of the embodiment of the invention;
Fig. 7 is the schematic diagram according to the release session of the PoC service of the embodiment of the invention; And
Fig. 8 is the signaling process figure according to the release session of the PoC service of the embodiment of the invention; And
Fig. 9 is the block diagram according to the session delivery system of PoC service of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Should be appreciated that, adopt the present invention, mainly solve following problem, when the strategy of control PoC server according to predefined release session, detect that some sessions are eligible can be discharged, control PoC server begins to send SIP BYE message, yet may there be such situation, (1) for control PoC server, this session is not without redemption must release, (2), do not want to finish this session on remaining most participant's subjective wishes of this session for the session participant.
For example, the strategy of the release session of the setting of control PoC server is " when some specific participant leaves session; discharge this session ", when if the specific participant of one or more of this session leaves session, there is the remaining participant of more this session to wish to continue this session.
The present invention mainly strengthens the function of the release session detection module of PoC server.Core concept of the present invention is in the prior art, server is according to the regular end session of setting, directly notify (perhaps not notifying) user's shortcoming, proposed a kind of improvement, made server according to the regular end session of setting, and before finishing, set timer, send the request of seeking the opinion of to all users, and confirm to finish the server end session the user.
The present invention needs the PoC server can support timer, supports the message to user's consultation, and needs PoC user can respond the message of the consultation of server.
Fig. 5 is the flow chart according to the conversation release method of PoC service of the present invention.As shown in Figure 5, this method may further comprise the steps:
Step S502, in the PoC server, configuration session discharges strategy and session discharges determination strategy, and session release configuration identifier is set;
Step S504, according to the setting of session release configuration identifier, session of PoC server detection meets session release strategy and sends conversation end to the PoC of session client and seek the opinion of message;
Step S506, when receiving conversation end when seeking the opinion of message, the PoC client is indicated according to the user and is sent the conversation end response message to the PoC server; And
Step S508, when receiving the conversation end response message, the PoC server discharges determination strategy according to session and determines whether to discharge session.
Wherein, session discharge configuration identifier be dispose on the system level of PoC server or on the session-level of each session on the PoC server, dispose.
Session release configuration identifier is set to be comprised: session is discharged configuration identifier carry out assignment, wherein, when session release configuration identifier is 1, the expression session meets session release strategy and will send conversation end and seek the opinion of message, and when session release configuration identifier is 0, when the expression session meets session release strategy, the PoC server will directly discharge session.
Carry out following the processing in step S504: when session discharged configuration identifier and is 1, the PoC server detected a session and meets session and discharge strategy, and to message of the PoC of session client transmission, wherein, message can comprise that conversation end seeks the opinion of message.
Handle below carrying out in step S506: when receiving message, the PoC client is sent acknowledge message to the PoC server; The PoC client is resolved message, thereby determines whether message is that conversation end is seeked the opinion of message; When definite message is conversation end when seeking the opinion of message, PoC Client-Prompt user confirms whether to discharge session; And according to user's indication, the PoC client finishes response message with session and sends to the PoC server.
In addition, handle below also carrying out in step S506: surpass the timer predetermined confined during time when the user confirms the time that whether discharges session, the PoC client is obtained acquiescence and is selected; And according to the acquiescence selection, the PoC client finishes response message with session and sends to the PoC server.
Wherein, session release determination strategy comprises the system of voting.Session discharges configuration identifier when representing to reach session that session discharges strategy and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.Session discharges configuration identifier when representing to detect session and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.
Fig. 6 is the logical flow chart according to the call release detection module of the PoC server of the embodiment of the invention.As shown in Figure 6, may further comprise the steps substantially:
One, controls the detection module of PoC server, detect the release strategy of this session;
If two these sessions do not meet the condition that discharges strategy, then the detection module flow process finishes, if this session meets the condition that discharges strategy, then detection module enters next step;
Three, according to the configuration of controlling the PoC server, the suggestion of whether seeking the opinion of this session participant when initiatively discharging session by control PoC server, if, then enter next step, then, send BYE message to current all participants of this session;
Four, under the normal condition, current all participants of this session receive above-mentioned BYE message, and the PoC terminal sends OK to control PoC server and replys, and control PoC server receives that the OK of all PoC terminals replys, and the PoC terminal discharges session and Session Resources; And
Five, control PoC server begins to discharge session, enters release module, discharges resource, end process, finishes this session status machine..
Fig. 7 is the schematic diagram according to the release session of the PoC service of the embodiment of the invention, as shown in Figure 7, if reach the condition of the release conversation strategy of setting, control PoC server sends INFO to the PoC terminal, consultation, then, the PoC terminal sends OK to control PoC server and replys.
Next, the PoC terminal sends INFO to control PoC server, expression of opinion, control PoC server sends OK to the PoC terminal again and replys, if the PoC server obtains the suggestion of PoC terminal, discharge session, then control the PoC server and send BYE message to the PoC terminal, otherwise, continue to keep session.
At last, control PoC server sends OK to the PoC terminal and replys, and the release conversation procedure of this PoC service finishes.
Fig. 8 is the signaling process figure according to the release session of the PoC service of the embodiment of the invention.As shown in Figure 8, may further comprise the steps:
S802, the detection module of PoC Server A, meet predefined release strategy if detect the situation of current sessions, then PoC Server A initiates to discharge the session operation, PoCServer A sends the SIP INFO to this session participant, sends " discharging this session about PoC Server A " consultation to the user;
S804, the SIP/IP network A is transmitted to the SIP/IP network B with the SIP INFO;
S806, the SIP/IP network B is transmitted to PoC Server B with the SIP INFO;
S808, PoC Server B responds the SIP INFO and gives the SIP/IP network B;
S810, the SIP/IP network B is transmitted the SIP INFO, and the SIP INFO is issued terminal B;
S812, terminal B responds SIP OK to the SIP/IP network and replys;
S814, the SIP/IP network B is replied SIP OK and is transmitted to PoC Server B;
S816, PoC Server B responds SIP OK to the SIP/IP network and replys;
S818, the SIP/IP network B is replied SIP OK and is transmitted to the SIP/IP network A;
S820, the SIP/IP network A is responded SIP OK to PoC Server A and is replied;
S822, PoC terminal B initiates the SIP INFO to the SIP/IP network B;
S824, the SIP/IP network B is transmitted the SIP INFO and is given PoC Server B;
S826, PoC Server B confirm that the SIP INFO is to the SIP/IP network B;
S828, the SIP/IP network B is transmitted the SIP INFO and is given the SIP/IP network A;
S830, the SIP/IP network A is transmitted the SIP INFO and is given PoC Server A;
Increase this top signaling Chinese connotation.
S832, PoC Server A respond SIP OK message; At this moment, PoC Server A obtains the expression of opinion of user " discharging this session about PoC ServerA ".
S834, the SIP/IP network A is given the SIP/IP network B with SIP OK forwards;
S836, the SIP/IP network B is transmitted SIP OK message and is given PoC Server B;
S838, PoC Server B confirm to transmit SIP OK message and give the SIP/IP network B;
S840, the SIP/IP network B is given PoC terminal B with SIP OK forwards;
S842 if PoC Server A obtains the user's the expression of opinion of " discharging this session about PoC ServerA ", by analysis, keeps this session, then withdraws from flow process; If PoC Server A obtains user's expression of opinion, by analysis, discharge this session, PoC Server A sends SIP BYE message to this session participant;
S844, the SIP/IP network A is given the SIP/IP network B with SIP BYE forwards;
S846, the SIP/IP network B is given PoC Server B with SIP BYE forwards;
S848, PoC Server B respond SIP BYE message and give the SIP/P network B, when PoCServer B receives SIP BYE message, discharge processing module and begin following processing:
One, between terminal B and control PoC Server A, stops forwarding TBCP message, RTP medium and RTCP message; And
Two, at user plane, server finishes any relevant process of this session and state machine, and wherein, PoC Server B responds SIP BYE message and gives the SIP/IP network B;
S850, the SIP/IP network B is transmitted SIP BYE message; When terminal B receives SIP BYE message, discharge processing module and start working, be divided into following two steps:
One, stops to send TBCP message, stop to send, playing the RTP medium;
If two control planes determine to discharge this PoC session, then the control state machine of corresponding PoC session example is also ended;
S852, terminal B responds SIP OK message to the SIP/IP network;
S854, the SIP/IP network B is given PoC Server B with SIP OK forwards;
S856, PoC Server B responds SIP OK message to the SIP/IP network;
S858, the SIP/IP network B is given the SIP/IP network A with SIP OK forwards; And
S860, the SIP/IP network A is responded SIP OK message to PoC Server A.
Next, we are example with the network environment of common intelligent network, and the implementation method of the technical program is described, may further comprise the steps:
Step 1 for control PoC server, is revised the detection module that discharges session.Major function comprises: whether the configuration of (1) control PoC server carries out " suggestion of seeking the opinion of current participant when initiatively discharging session by server according to the release conversation strategy ", (2) the PoC Control Server can be handled the suggestion that current participant returns, according to expression of opinion, whether decision really discharges session;
Step 2 for the PoC terminal, can be accepted the SIP INFO, the SIP INFO of the consultation that can identification control PoC server sends, and the software of PoC terminal can point out the user to make one's options or the PoC terminal software can dispose default selection; And
Step 3 for control PoC server, can be handled the suggestion that current participant returns according to certain strategy, and this strategy can be disposed by operator.
Said process specifically describes as follows.
Step 1 on control PoC server, is revised the detection module that discharges session.
(1) increases the configuration expression, as increase by one the sign checkflag, this sign can be the numerical value of a Boolean type, when checkflag=1, the expression detection module detects certain session and meets predefined releases when tactful, controlled the PoC server before discharging session, the suggestion that can seek the opinion of the current sessions participant; When checkflag=0, when the expression detection module detects certain session and meets predefined releases strategy, control the PoC server and directly discharge session.This sign can be the configuration in the system level of control PoC server, also can be the configuration of the session-level of each session on the control PoC server.
(2) enable if control the above-mentioned configuration of PoC server, so, when control PoC server detected some sessions and meets predefined release session tactful, control PoC server did not begin to discharge session immediately, but the suggestion that begins to seek the opinion of current participant; Control PoC server sends the SIP INFO, to current participant's consultation.
Herein, to carry the method for consultation as follows for the SIP INFO:
In content-length (content-length) field of SIP INFO extension field, the length of filling in this SIP INFO body, this length are " 12 ";
In content type (content-type) field of SIP INFO extension field, fill in the type of message of this SIP INFO, the type is " releasequery ", and as " application/releasequery ", the meaning is " applied/as to discharge and inquire about "; And
In message body (message body) field of SIP INFO extension field, fill in the message content of this SIP INFO, this message content is " releasequery ".
Step 2, if the PoC terminal of some sessions is received the SIP INFO that control PoC server sends, the PoC terminal is to control PoC server acknowledge SIP OK message; The PoC terminal learns that through resolving the SIP INFO this INFO is that " discharging this session about PoCServer A " seeks the opinion of the message of asking suggestion, and PoC terminal software prompting user makes one's options, and whether confirms call release immediately; The selection no matter user makes is or denys, PoC terminal send the SIP INFO to control PoC server.
Herein, to carry the method for expression of opinion as follows for the SIP INFO:
In content-length (content-length) field of SIP INFO extension field, the length of filling in this SIP INFO body, this length are " 2 " or " 3 ";
In content type (content-type) field of SIP INFO extension field, fill in the type of message of this SIP INFO, the type is " releaseack ", and as " application/releaseack ", the meaning is " applied/the release response "; And
In message body (message body) field of SIP INFO extension field, fill in the message content of this SIP INFO, this message content is " no " or " yes "; Wherein, " no " expression " suggestion wouldn't discharge session ", " yes " expression " agrees to begin immediately to discharge session ".
For the PoC terminal, a timer can be set, if the user did not make one's options in the time that this timer limits, the PoC terminal can be obtained a default selection, send the SIP INFO for control PoC server, with the message of the consultation of replying " discharging this session ", should " default selection " can dispose by the user about PoC Server A.
Step 3, for control PoC server, if obtain the SIP INFO of expression of opinion of current participant " discharging this session about PoC Server A ", control PoC server is according to the determination strategy that sets in advance, and whether real beginning discharges session in decision.
For example, the simplest determination strategy can be " voting system ", wherein, if current sessions has 10 participants, wherein 6 participant's expressions of opinion are " suggestion wouldn't discharge session ", and it is " agreeing to begin immediately to discharge session " that 4 participant's expressions of opinion are arranged, and controls the PoC server so, to continue keep the normal condition of session, be detected again up to this session and meet the condition that discharges conversation strategy and the needs suggestion of seeking the opinion of the current sessions participant not.
In addition, if current sessions has 10 participants, wherein 2 participant's expressions of opinion are " suggestion wouldn't discharge session ", it is " agreeing to begin immediately to discharge session " that 8 participant's expressions of opinion are arranged, control the PoC server so, begin to discharge session immediately, send SIP BYE message to the participant of this session.
Fig. 9 is the block diagram according to the session delivery system 900 of PoC service of the present invention.As shown in Figure 9, this system comprises: policy configurations device 902, be arranged in the PoC server, and be used for configuration session and discharge strategy and session release determination strategy, and session release configuration identifier is set; Message dispensing device 904 is arranged in the PoC server, is used for discharging according to session the setting of configuration identifier, detects a session and meets session and discharge tactful and send conversation end to the PoC of session client and seek the opinion of message; Message receiving apparatus 906 is arranged in the PoC client, is used for indicating according to the user to send the conversation end response message to the PoC server when receiving conversation end that the message dispensing device sends when seeking the opinion of message; And judgment means 908, be arranged in the PoC server, be used for when receiving the conversation end response message that message receiving apparatus returns, discharge determination strategy according to session and determine whether to discharge session.
Wherein, session discharge configuration identifier be dispose on the system level of PoC server or on the session-level of each session on the PoC server, dispose.
The policy configurations device is used for that also session is discharged configuration identifier and carries out assignment, wherein, when session release configuration identifier is 1, the expression session meets session release strategy and will send conversation end and seek the opinion of message, and when session release configuration identifier is 0, when the expression session meets session release strategy, the PoC server will directly discharge session.
In the message dispensing device, comprise: sending module, be used for when session release configuration identifier is 1, meet session release strategy, send message to the PoC of session client if the PoC server detects a session, wherein, message can comprise that conversation end seeks the opinion of message.
In message receiving apparatus, comprise: confirm module, be used for when receiving message, send acknowledge message to the PoC server; Resolve determination module, be used for message is resolved, thereby determine whether message is that conversation end is seeked the opinion of message; User prompt module, be used for when definite message be conversation end when seeking the opinion of message, the prompting user confirms whether to discharge session; And forwarding module, be used for indication according to the user, session is finished response message send to the PoC server.
In message receiving apparatus, also comprise: the default setting acquisition module, be used for surpassing the timer predetermined confined during time when the user confirms the time that whether discharges session, obtain acquiescence and select, and select, session is finished response message send to the PoC server according to acquiescence.
Wherein, session release determination strategy comprises the system of voting.Session discharges configuration identifier when representing to reach session that session discharges strategy and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.Session discharges configuration identifier when representing to detect session and being released, and whether needs to seek the opinion of the suggestion of the PoC client of session.
In sum, adopt method and system of the present invention, can control the PoC session business, end session more reasonably, thus can not delay user time, and saved server resource.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, 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 (16)

1. the conversation release method of a PoC service, described PoC service mainly by PoC server and PoC client executing, is characterized in that, said method comprising the steps of:
Step 1, in the PoC server, configuration session discharges strategy and session discharges determination strategy, and session release configuration identifier is set;
Step 2, according to the setting of described session release configuration identifier, session of described PoC server detection meets described session release strategy and sends conversation end to the PoC of described session client and seek the opinion of message;
Step 3, when receiving described conversation end when seeking the opinion of message, described PoC client is indicated according to the user and is sent the conversation end response message to described PoC server; And
Step 4, when receiving described conversation end response message, described PoC server discharges determination strategy according to described session and determines whether to discharge session.
2. method according to claim 1 is characterized in that, described session discharge configuration identifier be dispose on the system level of described PoC server or on the session-level of each session on the described PoC server, dispose.
3. method according to claim 2, it is characterized in that, described session release configuration identifier is set to be comprised: described session is discharged configuration identifier carry out assignment, wherein, when described session release configuration identifier is 1, also will send described conversation end seeks the opinion of message to represent described session to meet described session release strategy, and
When described session discharges configuration identifier and is 0, when representing that described session meets described session and discharges strategy, described PoC server will directly discharge described session.
4. method according to claim 3 is characterized in that, handles below carrying out in described step 2:
When described session release configuration identifier was 1, described PoC server detected a session and meets described session release strategy, sends a message to the PoC of described session client,
Wherein, described message can comprise that described conversation end seeks the opinion of message.
5. method according to claim 4 is characterized in that, handles below carrying out in described step 3:
When receiving described message, described PoC client is sent acknowledge message to described PoC server;
Described PoC client is resolved described message, thereby determines whether described message is that conversation end is seeked the opinion of message;
When definite described message is described conversation end when seeking the opinion of message, the described user of described PoC Client-Prompt confirms whether to discharge session; And
According to described user's indication, described PoC client sends to described PoC server with described conversation end response message.
6. method according to claim 1 is characterized in that, handles below also carrying out in described step 3:
Surpass the timer predetermined confined during time when described user confirms the time that whether discharges described session, described PoC client is obtained acquiescence and is selected; And
Select according to described acquiescence, described PoC client sends to described PoC server with described conversation end response message.
7. according to each described method in the claim 1 to 5, it is characterized in that described session discharges determination strategy and comprises the system of voting.
8. method according to claim 1 is characterized in that, described session discharges configuration identifier when representing to reach described session that described session discharges strategy and being released, and whether needs to seek the opinion of the suggestion of the described PoC client of described session.
9. method according to claim 1 is characterized in that, described session discharges configuration identifier when representing to detect described session and being released, and whether needs to seek the opinion of the suggestion of the described PoC client of described session.
10. the session delivery system of a PoC service is characterized in that, comprising:
The policy configurations device is arranged in the PoC server, is used for configuration session and discharges strategy and session release determination strategy, and session release configuration identifier is set;
The message dispensing device is arranged in described PoC server, is used for discharging according to described session the setting of configuration identifier, detects a session and meets described session and discharge tactful and send conversation end to the PoC of described session client and seek the opinion of message;
Message receiving apparatus is arranged in described PoC client, is used for indicating according to the user to send the conversation end response message to described PoC server when receiving described conversation end that described message dispensing device sends when seeking the opinion of message; And
Judgment means is arranged in described PoC server, is used for discharging determination strategy according to described session and determining whether to discharge session when the described conversation end response message that receives that described message receiving apparatus returns.
11. system according to claim 10 is characterized in that, described session discharge configuration identifier be dispose on the system level of described PoC server or on the session-level of each session on the described PoC server, dispose.
12. system according to claim 11 is characterized in that, described policy configurations device is used for that also described session is discharged configuration identifier and carries out assignment, wherein,
When described session release configuration identifier was 1, also will send described conversation end seeked the opinion of message to represent described session to meet described session release strategy, and
When described session discharges configuration identifier and is 0, when representing that described session meets described session and discharges strategy, described PoC server will directly discharge described session.
13. system according to claim 12 is characterized in that, comprises in described message dispensing device:
Sending module is used for when described session release configuration identifier is 1, meets described session release strategy if described PoC server detects a session, sends described message to the PoC of described session client,
Wherein, described message can comprise that described conversation end seeks the opinion of message.
14. system according to claim 13 is characterized in that, comprises in described message receiving apparatus:
Confirm module, be used for when receiving described message, send acknowledge message to described PoC server;
Resolve determination module, be used for described message is resolved, thereby determine whether described message is that conversation end is seeked the opinion of message;
User prompt module, be used for when definite described message be described conversation end when seeking the opinion of message, point out described user to confirm whether to discharge session; And
Forwarding module is used for the indication according to described user, and described conversation end response message is sent to described PoC server.
15. system according to claim 10 is characterized in that, also comprises in described message receiving apparatus:
The default setting acquisition module is used for surpassing the timer predetermined confined during time when described user confirms the time that whether discharges described session, and obtain acquiescence and select, and
Select according to described acquiescence, described conversation end response message is sent to described PoC server.
16., it is characterized in that described session discharges determination strategy and comprises the system of voting according to each described system in the claim 10 to 15.
CNA2007101546041A 2007-09-12 2007-09-12 Conversation release method and system of PoC service Pending CN101115073A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102291849A (en) * 2010-06-18 2011-12-21 中兴通讯股份有限公司 Method and system for triggering release of VoIP (Voice over Internet Protocol) session
CN102595646A (en) * 2011-01-11 2012-07-18 华为技术有限公司 Vent resource processing method and equipment
CN104767751A (en) * 2015-04-02 2015-07-08 大唐移动通信设备有限公司 Session control method and device
CN108600076A (en) * 2017-03-07 2018-09-28 中移(杭州)信息技术有限公司 A kind of social networks method for building up and system
CN110351899A (en) * 2018-04-02 2019-10-18 华为技术有限公司 Discharge the method and apparatus of user plane functions network element
CN110582995A (en) * 2018-04-09 2019-12-17 联发科技股份有限公司 method and apparatus for session release in wireless communications

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102291849A (en) * 2010-06-18 2011-12-21 中兴通讯股份有限公司 Method and system for triggering release of VoIP (Voice over Internet Protocol) session
CN102595646A (en) * 2011-01-11 2012-07-18 华为技术有限公司 Vent resource processing method and equipment
CN102595646B (en) * 2011-01-11 2015-04-08 华为技术有限公司 Vent resource processing method and equipment
CN104767751A (en) * 2015-04-02 2015-07-08 大唐移动通信设备有限公司 Session control method and device
CN108600076A (en) * 2017-03-07 2018-09-28 中移(杭州)信息技术有限公司 A kind of social networks method for building up and system
CN110351899A (en) * 2018-04-02 2019-10-18 华为技术有限公司 Discharge the method and apparatus of user plane functions network element
CN110351899B (en) * 2018-04-02 2021-07-16 华为技术有限公司 Method and equipment for releasing user plane function network element
CN110582995A (en) * 2018-04-09 2019-12-17 联发科技股份有限公司 method and apparatus for session release in wireless communications

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