CN103401916A - User keep-alive mechanism in IMS (Internet Protocol Multimedia Subsystem)) network optimized by HTTP (Hyper Text Transport Protocol) message - Google Patents
User keep-alive mechanism in IMS (Internet Protocol Multimedia Subsystem)) network optimized by HTTP (Hyper Text Transport Protocol) message Download PDFInfo
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- CN103401916A CN103401916A CN2013103213325A CN201310321332A CN103401916A CN 103401916 A CN103401916 A CN 103401916A CN 2013103213325 A CN2013103213325 A CN 2013103213325A CN 201310321332 A CN201310321332 A CN 201310321332A CN 103401916 A CN103401916 A CN 103401916A
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Abstract
The invention discloses a user keep-alive mechanism in an IMS (Internet Protocol Multimedia Subsystem)) network optimized by an HTTP (Hyper Text Transport Protocol) message. The user keep-alive mechanism is used for keep-alive between a user in an IMS system and an application server. By adopting the keep-alive scheme, the application server can learn the state of a terminal user in time so as to provide accurate application services in the IMS network for the user. The IMS network communication and a keep-alive SIP (Session Initiation Protocol) signaling need to penetrate through a series of equipment of SBC (Session Border Controller), PCSCF (Proxy Call Session Control Function), ICSCF (Interrogating Call Session Control Function) and SCSCF (Serving Call Session Control Function) and are required to be subjected to be information processing when passing through each equipment, so that no sufficient information can be provided when an SIP message transmitted by the terminal reaches the application server and the application server cannot accurately learn the current terminal state. Therefore, according to the user keep-alive mechanism disclosed by the invention, direct contact between the terminal and the application server is established by the HTTP message and is used as supplement for the IMS communication system; the accurate control of the application over the terminal is realized by combining the direct contact with the keep-alive mode of the IMS communication system.
Description
Technical field
The present invention relates to communication field, particularly relate to by the user's keepalive mechanism in HTTP message optimisation IMS network.
Background technology
SIP is the signaling control protocol of an application layer.Be used for creating, revising and discharge one or more participants' session.These sessions can be Internet multimedia conferencing, IP phone or multimedia delivery.The participant of session can communicate by multicast (multicast), netted clean culture (unicast) or both mixtures.The signaling control section of IMS network just is based on Session Initiation Protocol and realizes.But to pass through SBC, PCSCF, a series of device parses of ICSCF, SCSCF and processing when sip message during through the IMS network, thus terminal send sip message arrival application server the time, often can not meet the requirement of expection.
If build a system, be deployed in respectively mobile phone terminal and application server,, by the calling of application server control terminal, necessarily require so application server can in time understand the state information of terminal, so that make judgement accurately.And if, by the keep-alive mode in the IMS standard, can not produce a desired effect.Because sip message carries inclusion usually, message is larger simultaneously, and message is many through node, and is unsatisfactory as keepalive mechanism efficiency.
Therefore need to consider the mode of a kind of terminal and application server Direct Communication, be used for the transmission real-time status and carry out the terminal keep-alive, guarantee that simultaneously basic IMS call flow and business are unaffected.By at application server and terminal, respectively disposing a HTTP module, carry out can well addressing this problem alternately of real-time keep-alive message by HTTP message, simultaneously due to characteristics such as the HTTP information is few, stateless, interacting message efficiency is higher.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of keepalive mechanism of IMS communicating terminal of the IMS of not relying on network.
For achieving the above object, the invention provides a kind of keepalive mechanism based on http protocol, comprise the HTTP module of terminal issue heartbeat message, and the service termination is got into the frame of mind for work and jumped the HTTP module of message;
The HTTP module of described terminal issue heartbeat message is used for: the IMS terminal is connected heartbeat module and is set up TCP and connect with service end by the Internet network,, by HTTP message cycle transmission keepa1ive keep-alive message, report the presence of self;
Described service end receives the HTTP module of heartbeat message, be used for: receive the HTTP heartbeat request that meets preset protocol, and for each user, set up a message queue, receive HTTP message according to predetermined period when service end and give with success response after, system is judged that the terminal use is current and is presence, can answer IMS and call out, otherwise think off-line of terminal, the calling that server will mail to this terminal changes circuit domain call into.
Can be found out by such scheme, break away from the IMS signaling network in the present invention, carry out the state keep-alive between terminal and application server,, by terminal and the direct-connected mode of application server, make up the keep-alive mode of IMS network, improve the instantaneity of call business.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is module architectures schematic diagram in the present invention;
Fig. 2 is system process information flow process schematic diagram in the present invention;
Fig. 3 is logic flow schematic diagram in the present invention;
Fig. 4 is device internal information flow process schematic diagram in the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.Obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
The invention provides a kind ofly by the user's keepalive mechanism in HTTP message optimisation IMS network, comprise the HTTP module of terminal issue heartbeat message, and the service termination is got into the frame of mind for work and jumped the HTTP module of message.
The HTTP module of described terminal issue heartbeat message is used for: the IMS terminal is connected heartbeat module and is set up TCP and connect with service end by the Internet network,, by HTTP message cycle transmission keepalive keep-alive message, report the presence of self;
Described service end receives the HTTP module of heartbeat message, be used for: receive the HTTP heartbeat request that meets preset protocol, and for each user, set up a message queue, after receiving HTTP message when service end according to predetermined period and giving success response, system is judged that the terminal use is current and is presence, can answer IMS and call out, otherwise think off-line of terminal, the calling that server will mail to this terminal changes circuit domain call into.
The course of work of said system, referring to Fig. 3, specifically comprises the following steps:
Step 1, terminal is registered to the IMS network by SIP, by SCSCF, to application server, initiates tripartite's registration, and this moment, application server recorded the login state of terminal, by the SIP module, to heartbeat module, was given notice, and started the heartbeat message of monitoring terminal.
Step 2, after the endpoint registration success, by the heartbeat module transmission HTTP heartbeat message of Inter network to application server, application server is replied 200 success responses after successfully receiving heartbeat message every 25s.The heartbeat request message form is as follows:
PUT?http：//192.168.10.101：8081/KeepAlive?HTTP/1.1
Host：192.168.10.101：8081
User-Agent：2
X-3GPP-Intended-Identity：sip：+86138000138002@test.com
Call-Type：cs/igt
Content-Length：0
Step 3, application server judge that whether terminal sends heartbeat message according to the 25s cycle, and be normal if the terminal heartbeat sends, and notifies this User Status of SIP module to be the registration state; If surpass 2 cycles, namely still do not receive the heartbeat message of terminal after 50s, will notify the SIP module, User Status is set to cancellation;
Step 4, when there being other users to call out this sip user, when Invite arrived at application server, the SIP module of application server judged,, if the user is login state, Invite message was handed down to terminal by the IMS network, set up SIP and called out; , if the user, for nullifying state, is forwarded to Invite message circuit domain, controls called foundation by Circuit Switching Network and call out.
Step 5, if after the terminal heartbeat timeout, network recovery is normal, namely the heartbeat message of terminal can arrive at application server according to the cycle, application server is notified the SIP module again, transfers User Status to the registration state from nullifying state;
Step 6, terminal is initiated to nullify at the IMS network by SIP, initiates the tripartite by SCSCF to application server and nullifies, the SIP module of application service this moment is given notice to heartbeat module, stop the heartbeat message of monitoring terminal, subsequent voice calls does not make a decision, and directly transfers circuit domain call to.
System of the present invention can be used for supplementing or optimizing IMS network terminal keepalive mechanism.
Therefore, provided by the invention a kind of by the user's keepalive mechanism in HTTP message optimisation IMS network, following advantage is arranged.
(1) improved the stability of state keep-alive
Due to the IMS signaling network nodes and processing links too much; the keep-alive message that terminal sends there will be unsettled phenomenon of cycle while arriving at application server; cause application server judgement inaccurate. and the keep-alive mode by HTTP; application server can be recognized by approach independently the state of terminal; contrast again from the IMS Network Capture to SOT state of termination, can provide business support for the user more accurately.
(2) improved the accuracy that message is transmitted
Because the IMS network all can carry out header field and parameter processing to sip message, cause like this terminal to send to the message of application server after a series of equipment, may be modified or increase and decrease some header fields, application server may obtain according to the message of receiving the state that judges terminal less than enough information.And the mode by HTTP, application server can directly obtain raw information.
(3) avoided being tackled by the IMS network equipment because terminal frequently sends keep-alive message.
Because terminal 25s sends a keep-alive message, may be by full equipment interceptions such as SBC through the IMS network time, cause the subsequent message can not normal delivery.And mode by HTTP has increased the keep-alive passage of a terminal and application server.
(4) improved the level of resources utilization of IMS network
Send the HTTP keep-alive message by the Internet network, avoided great amount of terminals frequently by the IMS network, to send keep-alive message, effectively reduced the load of equipment in network, for effective IMS business, saved resource, improved the level of resources utilization.
(5) be convenient to the subsequent expansion application function
Can in time recognize the presence of terminal due to application server, and expand the mode of terminal and application server direct communication by this implementation, for subsequent development more the application function of horn of plenty expansion interface is provided.
By the description of above embodiment of the method, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: the various media that can be program code stored such as read-only memory (ROM), random access memory (RAM), magnetic disc or CD.
For system embodiment, due to it substantially corresponding to embodiment of the method, so relevant part gets final product referring to the part explanation of embodiment of the method.Device described above or system embodiment are only schematic, wherein said unit as the separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, namely can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select according to the actual needs wherein some or all of module to realize the purpose of the present embodiment scheme.Those of ordinary skills in the situation that do not pay creative work, namely can understand and implement.
In the embodiment that the application provides, should be understood that disclosed system and method, not surpassing in the application's spirit and scope, can be realized in other way.Current embodiment is a kind of exemplary example, should be as restriction, and given particular content should in no way limit the application's purpose.For example, the division of described unit or subelement, be only that a kind of logic function is divided, and during actual the realization, other dividing mode can be arranged, and for example a plurality of unit or a plurality of subelement combine.In addition, a plurality of unit can or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.
In addition, the schematic diagram of institute's descriptive system and method and different embodiment, in the scope that does not exceed the application, can with other system, module, technology or method in conjunction with or integrated.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The above is only the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. by the user's keepalive mechanism in HTTP message optimisation IMS network; it is characterized in that; set up contacting directly of sip terminal and application server by HTTP message, as to the supplementing of IMS communication system, both in conjunction with to realize the accurate control of application server to terminal.
2. method according to claim 1; it is characterized in that; also comprise: terminal periodic transmission HTTP keep-alive message, service end is called out and is controlled the SIP that mails to terminal by the keep-alive message of using terminal, and automatic decision still transfers circuit domain call to by the IMS network-originated call.
3. method according to claim 1, is characterized in that, also comprises: service end sends the cycle of HTTP keep-alive message according to terminal, the quality of the current IP network of living in of judgement terminal.
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| CN2013103213325A CN103401916A (en) | 2013-07-24 | 2013-07-24 | User keep-alive mechanism in IMS (Internet Protocol Multimedia Subsystem)) network optimized by HTTP (Hyper Text Transport Protocol) message |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070950A (en) * | 2017-05-24 | 2017-08-18 | 深圳市万普拉斯科技有限公司 | Method, device and the computer-readable recording medium of IMS registration control |
| CN108011772A (en) * | 2016-11-01 | 2018-05-08 | 中兴通讯股份有限公司 | Method, apparatus and Session Border Controller of a kind of SBC to terminal heartbeat detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011772A (en) * | 2016-11-01 | 2018-05-08 | 中兴通讯股份有限公司 | Method, apparatus and Session Border Controller of a kind of SBC to terminal heartbeat detection |
| CN107070950A (en) * | 2017-05-24 | 2017-08-18 | 深圳市万普拉斯科技有限公司 | Method, device and the computer-readable recording medium of IMS registration control |
| CN107070950B (en) * | 2017-05-24 | 2021-04-20 | 深圳市万普拉斯科技有限公司 | Method, device and computer readable storage medium for IMS registration control |
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