CN104469983A

CN104469983A - Method for achieving combined services in communication network

Info

Publication number: CN104469983A
Application number: CN201410709336.5A
Authority: CN
Inventors: 贾安妮·古利尔米; 安德瑞·德马丁; 布鲁诺·博特里洛; 弗朗切斯科·比泰托; 卢卡·鲍索尼图; 达里奥·塞司迪托; 加尔基奥·卡斯特雷; 赛尔基奥·考雷塞
Original assignee: Telecom Italia SpA
Current assignee: Telecom Italia SpA
Priority date: 2004-12-03
Filing date: 2004-12-03
Publication date: 2015-03-25

Abstract

The invention discloses a method for achieving combined services in a communication network. The method for enabling a first terminal and a second terminal of the communication network to use the combined services comprises the steps of establishing connection between the first terminal and the second terminal in a circuit domain, receiving conformation of connection establishment at the two terminals; receiving the conformation, and triggering the automatic connection from the two terminals to a packet domain; distributing a first address and a second address which are in the packet domain and are relevant to a first identifier and a second identifier of the first terminal and the second terminal in the circuit domain; receiving the first address, triggering a request comprising the first address and the second identifier to be automatically sent to equipment in the packet domain from the first terminal; receiving the second address, triggering a request comprising the second address and the first identifier to be automatically sent to the equipment from the second terminal; establishing the connection between the first terminal and the second terminal on the packet domain based on the relevance between the first identifier and the first address and the relevance between the second identifier and the second address, and executing the relevance according to the two requests received by the equipment.

Description

Realize composite services in a communication network

The application is application number is 200480044839.X, the applying date be December 3 in 2004 day, be called the divisional application of the application for a patent for invention of " realizing composite services in a communication network ".

Technical field

The present invention relates generally to communication network field, especially relate to mobile communications network.The present invention specifically relates to communication network, and especially the user of mobile communications network enjoys composite services.

Background technology

Mobile telephone network is the mode being similar to public switched telephone network (PSTN) (referred to as PSTN) at first, but is build to realize voice communication between mobile subscriber.Mobile telephone network and experiences swift and violent development, especially at introducing 2g mobile network, after particularly such as those meet GSM (" global system for mobile communications ") standard and meet the digital mobile network of the U.S. and the Japanese corresponding system adopted.

Be similar to PSTN, 2g mobile network is also circuit-switched network; Which greatly limits the bandwidth can distributing to given user, particularly in 2g mobile network.On the contrary, the data communication network of such as computer network, and internet wherein have employed the packet switching arrangement allowing much higher message transmission rate.

In order to overcome the restriction of the legacy circuit-switched mobile network of such as GSM net, making to allow the user of mobile terminal to use the service provided by internet in an efficient way, having proposed some solutions.One of scheme the most universal is GPRS (" general packet radio service ").GPRS is digital mobile phone technology (in fact, it builds based on existing GSM network framework) that is a kind of and GSM network compatibility, and it allows data to transmit with the speed allowed higher than pure GSM.In fact, GPRS can be regarded as the support that is attached on GSM and achieves block data communication.Although such as those the third generation wireless communication systems meeting standard UMTS (" universal mobile telecommunications system ") are more promising in data transmission bauds, GPRS is the solution in the realized solution of the data exchange capability improved in existing GSM network.

Except simple sound communication, the service that these mobile networks provide has been obtained for and has increased rapidly on quality and quantity; Only for some examples, sending and receiving short messages service recent years (" sending and receiving short messages system ", be called for short SMS) and Multimedia Messaging Service (" multimedia messaging system ", or MMS), and Internet connectivity service has been accomplished to use.

Especially, the user for mobile communications network, for only providing multimedia service aspect to have strong interest by the communication between the user that voice are formed, that is, thanks to exist increase image, video, by internet or the service by the possibility of Email access data.In these services, so-called " composite services " have attracted the very big attention of mobile-phone carrier.For description object of the present invention, " composite services " mean to be opened simultaneously by the terminal of this serving communication network (not necessarily movement) and be used two connections usually, be generally circuit (circuit switching or CS) to connect and grouping (packet switching, PS) connection.

U.Olsson and M.Nilsson is at Ericsson Review No.2, particularly describe the example of a kind of so-called " composite services " in the article " Combinational services-The pragmatic first step toward all-IP " of 2003, which use and connect at circuit and dividing into groups to be connected the ability processing volume of services simultaneously: share image at session.Author notices, simultaneously connect at circuit and be connected in grouping the possibility processing traffic carrying capacity and not only allow and WCDMA (Wideband Code Division Multiple Access (WCDMA)), give interface (the multi radio access bearer in " by aerial ", many RAB) in use the possibility of multiple and parallel carrying, and allow and GSM, wherein standardized mechanism-duplex transmission mode or DTM-obtain similar possibility.But the only engineering feasibility that in article, author notices " successfully crossing aerial " is not enough.Sometimes have forgotten usual end user to the complicated of chnnel coding and radio wave propagation loses interest in.Otherwise end user wants reliably, be easy to use and be well suited for the mobile terminal of current environment.In other words, some entities in mobile terminal it must be understood that user is attempting the thing done, and are converted into the sequence of operation.A woman during the example described in article relates to about the talk of a special horticultural show meeting and her husband.During session, this woman determines that the thing she described shows her husband.Ideally, what user interface (man-machine interface or MMI) should be enough is simple, as with a kind of she only need the mode pushing button to open video camera.Mobile terminal should have enough intelligence to find another participant of the calling how arrived on grouping connection and send image.According to the description of author, in order to allow this occur, need following basic module:

Coordination function (at least, one has the extended address book of the information of the getatability about all coherent networks) in mobile terminal;

Getatability mechanism in grouping coupling part.According to the description of author, long-term solution may, by based on IMS (IP Multimedia System), utilize SIP (session initiation protocol) session protocol to find other participants and to coordinate session parameter;

For the mechanism of assignment information acquisition capability, it allows based on the information of the clever use of terminal and network application about reservation, session status, bearer circuit state, user preferences etc.At this on the one hand, author advises that SIP especially uses http protocol and WebXML service.

Enjoyed by mobile terminal in the other white paper " Video sharing-Enrich your voice call with video " being described in Nokia company of service and provide, at internet website: http://www.nokia.com/BaseProject/Sites/NOKIA_MAIN_18022/CDA/Cat egories/Phones/Technologies/VideoSharing/_Content/_Stati c_Files/video_sharing_a4_2510.pdf openly can be used for download.

The real-time video of share service allows user easily can enrich their communication during telephone conversation.Always there is a user can share the live video taken by video camera or the video clips carrying out self terminal.Two users see identical video and can discuss to it while continuing their audio call.In the example described by this white paper, Keith with Malcom is in the normal call that circuit is connected on (CS), and Keith wants to share live video with Malcom.They have the device that can share video and have registered this service.Following flow process is described in this white paper:

During ongoing CS audio call, Keith selects to share live video.

Keith confirms that Malcom is as recipient.

Malcom receives the video request from Keith and accepts.

This acceptance is shown to the Keith of the transmission starting video flowing by system.

The device of Malcom starts to show the video identical with the device of Keith, and they can be discussed by audio call.

Terminate video share when Keith shows to be over when he wants the content of showing, the audio call between Keith and Malcom keeps active state.

The technology that the video sharing service described according to above mentioned white paper uses is common SIP or IMS foundation structure.

At another white paper, being accomplished by Forum Nokia can at website http://www.forum.nokia.com/main/1,040,00.html? fsrParam=2-3-/main.html & filelD=5336 disclose available and in the article of " the White Paper:IPConvergence Based On SIP:Enhanced Person-To-PersonCommunications " by name that download, describe and use Session Initiation Protocol for setting up peer to peer connection type between the terminal can supporting IP agreement.As described in this white paper, in order to communicate, IP-based application must have the mechanism arriving correspondent.Today, fixing and mobile telephone network performs this mission critical connected.By dialing the telephone number of another user, network can set up special connection between any two terminals.This crucial connection ability extensively exists in the internet not yet.According to this white paper, by other critical mobile networks ability (that is, verify, roaming, and according to the network interconnection that IMS standard provides), the supplementary session management based on SIP provides required structure.Utilize the realization of this system, likely set up IP between two terminals and connect.Once connection establishment, it just can be used to exchange all types of communication medium (voice, video, content etc.).Be similar to HTTP, SIP is text based client-server protocol.SIP is designed to set up, amendment and ending multimedia session or calling, and it can serve as in " sip terminal " (or user agent, UA) both client and server be in fact different from HTTP.Therefore, the communication of client-to-client may be set up.According to this this white paper, the 6th edition (IPv6) of IP agreement provides solid foundation based on the service of SIP.The maximum benefit of IPv6 is exactly huge address space.In fact, in this this white paper, further highlights the problem of IP agreement the 4th edition (IPv4), and compared to today that internet is being tested, this agreement has been designed to the Internet host of smaller amounts.When the cell phone of more than one hundred million (or upper 1,000,000,000) will be connected on internet, the problem of address space will become very outstanding.In the possible application of the Session Initiation Protocol described by this this white paper, quote real time video sharing service as proof.

Summary of the invention

The solution that the applicant observes the realization for composite services based on SIP-MIS foundation structure set forth above is not no problem.

The viewed first problem of the applicant is, because the whole time of each sip terminal typically during it stays open " will consume " an IP address, SIP-IMS foundation structure requires the fact of a large amount of available IP-addresses of Virtual network operator.In the future, this problem is resolved replacing presently used widely using of IPv4 along with IPv6: the applicant thinks, the realization of the composite services that the user no matter how serious hope can be increased by quantity is enjoyed by IPv4 address equally, makes this kind of service available within the brief time in such a way.

The viewed Second Problem of the applicant is the use of this service can the cause complicated result fact to usual end user, domestic consumer typically uses the terminal of his/her to carry out call simply, or sends the message of MSM (sending and receiving short messages service) type.Particularly, the applicant observes, the video that two users for wherein communication network can exchange rest image or video (segment being recorded in real-time time by the video camera embedded or taken) during audio call share or the composite services of Image Sharing type quite complicated by being used in result user requires to carry out with their terminal mutual in a large number.For this reason, enjoy to user provide different while the composite services of communication possibility should accomplish the simplest and efficient as much as possible, minimize with the complexity of the configuring request and use that make terminal.This can make composite services can obtain powerful expansion.

Viewed 3rd problem of the applicant is the following fact: if allow on the one hand stronger use versatility (especially at dissimilar network, such as fix the user of registration in moving), require on the other hand registered users and be forwarded to the search mechanisms of message of the client resided on user terminal, realize grouping between two users that the use of SIP-IMS structure can make to realize take part in circuit calling to connect, the composite services namely realized between two users slow down.The applicant believe therefore may cause be reduced in packet domain realize connect necessary messaging protocol, to make this realization quicker.

Consider above second and the 3rd problem that expose, the applicant observes two users wherein and must realize exchanging in the composite services of video or image on grouping connects, except the colloquiate on circuit common connects, connect owing in fact establishing circuit between both, more necessary information that packet domain connects can be obtained by this communication network.This allows the agreement needed for simple implementation grouping connection, decreases the quantity of signaling message and user and themselves terminal interaction.

In first, the present invention relates to and make enjoyable composite services on the subscriber terminal in a simplified manner.User sets up calling in circuit domain, and makes the enjoyment of on his/her terminal menu option dependent pattern service available due to this call establishment.

In second, the present invention relates to the method realizing realizing the use of at least one composite services at least first terminal of the first user of communication network.The method comprise set up described communication network circuit domain in, from described first terminal to second terminal of the second user of described communication network first connect; Described first terminal receives the confirmation of described first establishment of connection; And automatically to set up owing to receiving described confirmation and connect from described first terminal to second of the packet domain of described communication network.

In the 3rd, the present invention relates to the application on the first terminal of the first user being applicable to be arranged on communication network, to realize the use of at least one composite services in described first terminal.This application comprises software coded portions, it is applicable to receive from described first terminal to the confirmation of the first establishment of connection of second terminal of the second user of described communication network in the circuit domain about described communication network, and automatically sets up the second connection from described first terminal to the packet domain of described communication network owing to receiving described confirmation.

In the 4th, the present invention relates to the terminal being applicable to use in the mobile communication network.This mobile terminal, such as cell phone, comprise module, this module is applicable to receive from described first terminal to the confirmation of the first establishment of connection of second terminal of the second user of described communication network in the circuit domain about described communication network, and automatically sets up the second connection from described first terminal to the packet domain of described communication network owing to receiving described confirmation.

In the 5th, the present invention relates to the method that the first and second terminals being provided for communication network can use composite services.Described first and second terminals first are connected by what set up in the circuit domain of described communication network and are interconnected, and they there is described communication network described circuit domain in each autocorrelative first and second identifiers.In addition, described first and described second terminal there are each autocorrelative first and second addresses in the packet domain of described communication network.In the first equipment comprised in the described packet domain of described communication network, the method comprises:

Receive the first request from described first terminal, described first request comprises described first address and described second identifier;

Described first address is associated with described first identifier of described first terminal;

Receive the second request from described second terminal, described second request comprises described second address and described first identifier;

Described second address is associated with described second identifier of described second terminal;

Based on associating and associating between described second address with described second identifier between described first address with described first identifier, in the packet domain of described communication network, realize the second establishment of connection between described first and described second terminal.

In the 6th, the present invention relates to a software program, it is applicable to be arranged on the first equipment of comprising in the packet domain of communication network, to make the first and second terminals of described communication network to use composite services, wherein said first by what set up in the circuit domain of described communication network with described second terminal first is connected and is interconnected.Described first and described second terminal there are each autocorrelative first and second identifiers in the described circuit domain of described communication network.In addition, described first and described second terminal there are each autocorrelative first and second addresses in the packet domain of described communication network.This program comprises software coded portions, is applicable to:

Based on associating and associating between described second address with described second identifier between described first address with described first identifier, in the described packet domain of described communication network, realize the second establishment of connection between described first and described second terminal.

In the 7th, the present invention relates to the method that the first and second terminals being provided for communication network can use composite services.The method comprises:

Between described first terminal and described second terminal, set up first in the circuit domain of described communication network connect;

Described first and described second terminal receive the confirmation of described first establishment of connection;

Automatically described first and described second terminal are connected in the packet domain of described communication network owing to have received described confirmation;

For the first and second addresses in the packet domain of communication network described in described first and second terminal distribution, described first and second addresses are associated with the first and second identifiers of described first and second terminals in the circuit domain of described communication network respectively;

Owing to have received described first address, automatically send the equipment comprised in the first request to the packet domain of described communication network from described first terminal, described first request comprises described first address and described second identifier;

Owing to have received described second address, automatically send the second request to described equipment from described second terminal, described second request comprises described second address and described first identifier;

Associate based on first between described first identifier with described first address, and second between described second identifier with described second address associates, in the described packet domain of described communication network, realize the second establishment of connection between described first and described second terminal, owing to have received described first and described second request, perform described first by described equipment and associate with described second.

Accompanying drawing explanation

Fig. 1 shows the mobile communications network can supporting composite services by way of example;

Two users that Fig. 2 schematically illustrates mobile communications network enjoy composite services;

Fig. 3 schematically illustrates the example of the mobile terminal that can use composite services from the angle of functional module;

Fig. 4 shows the framework of the composite services of two users' enjoyment " video is shared " types of mobile network in a very simplified manner;

Fig. 5 shows in detail the operating process example making two of mobile communications network users can use the composite services of " sharing video " type;

Fig. 6 a and Fig. 6 b shows the possible flow process of between two terminals of peer to peer connection two to avoid the transmission collision connected.

Embodiment

Fig. 1 shows the example of the mobile communications network 20 that mobile phone can be provided to serve according to GSM/GPRS standard.Observable, the mobile network of mobile phone service can be provided to have the structure being very similar to mobile network shown in Fig. 1 according to UMTS standard.Mobile network 20 had both supported the communication on circuit connection, also supported the communication on grouping connection.In order to this result, mobile network 20 comprises circuit network portion (or territory) 35 and packet network part (or territory) 51.Mobile terminal 12,14 (such as cell phone, PDA or personal digital assistant etc.) is by the radio interface communication with one or more radio base station (BTS, base station transmitter) 32.Each radio base station 32 provides mobile phone service in the corresponding geographic area 30 being usually called " community " as everyone knows.Should be appreciated that mobile network 20 is for providing service than much more many communities shown in an illustrative manner in Fig. 1 and many mobile terminals.Different radio base stations 32 is connected to base station controller (BSC) 34, the distribution of base station controller managing radio resources and redistributing, and the mobile terminal in control access is from a radio base station to another switching.BSC and relevant radio base station thereof are commonly called base station sub-system (BSS).BSC 34 is connected to the mobile switching centre (MSC) 36 in circuit domain 35, can also be established to other network 38 by MSC 36, and the circuit of such as PSTN or ISDN (integrated services digital network) network connects.Usually, in mini mobile network, the many BSC being similar to BSC 34 shown in Fig. 1 are connected to single MSC.

MSC 36 is also connected to attaching position register (HLR) 42 and Visitor Location Register (VLR) 44 by signaling network 40 (such as according to the signaling network of No.7 signaling system or SS7).VLR 44 comprises database, and this database comprises the information about all mobile terminals occurred instant in corresponding geographic area, and it has MSC in this geographic area, provides the provisional registration data of serving necessary mobile phone service-user.HLR 42 comprises database, and this database purchase also manages the reservation of the user of the mobile network 20 such as belonging to mobile terminal 12,14.For each user wherein, HLR comprises permanent reservation data, such as telephone number (mobile radio station ISDN or MSISDN), be also Client Line Identifier (CLI) as everyone knows, it identifies reservation and the IMSI International Mobile Subscriber Identity (IMSI) of mobile terminal in the mode of the Digital Design of PSTN network, that is, the unique identification for each user's distribution and for sending signaling in the circuit domain of mobile network on international rating class.HLR 42 also comprises in addition the service list (mode with so-called " configuration file (profile) ") of authorizing the user of mobile network to use, and serves the address of VLR of this user immediately.

Each BSC 34 is also connected to packet domain, and corresponding to the GPRS network 51 in Fig. 1, Serving GPRS Support Node (SGSN) 50, the mobile terminal that packet domain is responsible for being positioned at its coverage sends grouping.In mini mobile network, many BSC are connected to single SGSN.Gateway GPRS Support Node (GGSN) 54 serves as the logic interfacing of the extenal grouped network of such as IP network 56 (such as internet).Node SGSN 50 and GGSN 54 is interconnected by IP backbone 52 usually.

Therefore the mobile communications network 20 of Fig. 1 includes external circuit network (shown in network 38), and a part for the communication network of wider scope of extenal grouped network (shown in network 56).The user of mobile communications network 20 with the telex network belonging to the external network 38 that circuit is connected, also can be connected to the website in the IP network 56 in grouping connection or their e-mail server.In addition, the user of mobile communications network 20 can use at least one composite services, namely due to this service, the circuit that the user belonging to mobile terminal 12 of such as Fig. 2 can be opened to another (mobile network 20 or external network 38) user from the mobile terminal 12 of his/her simultaneously connects and is connected with grouping.This user such as can utilize grouping to connect and check one or more webpage from his mobile terminal 12, and utilizes this circuit to connect the content that this webpage is discussed with the interlocutor of his/her at the same time.In another example, user can utilize grouping to be connected to the content his/her mobile terminal 12 being downloaded the E-mail address of his/her, utilizes this circuit to connect the content that the one or more email messages received are discussed with the interlocutor of his/her simultaneously.In another example, user can utilize grouping to connect and send a series of still image or video (segment by the video camera real-time recording that embeds or shooting) to the terminal of the interlocutor of his/her from the mobile terminal 12 of his/her, comments on the image occurred in the terminal of the two together with the interlocutor of his/her simultaneously.For purposes of the present invention, hereinafter term " video " means the image comprising any type, static and in movement, captured in real-time or record and be stored in memory area.

Such as, with reference to figure 2, the first user of the mobile network 20 belonging to mobile terminal 12 makes a call to second user of the mobile network 20 belonging to mobile terminal 14.First mobile terminal 12 is served by BTS 32, and the second mobile terminal 14 is served by BTS 32 ', and BTS 32 ' can be identical from the BTS 32 of first class services mobile terminal or different BTS.The first connection C1 is set up, to support the voice communication between the first and second users when the second user receives calling.Connect C1 usually to set up in a bi-directional way in the circuit domain 35 of mobile network 20.In the packet domain 51 of mobile network 20, set up second between mobile terminal 12 and mobile terminal 14 connect C2, during their telephone conversation, share some videos to allow the first and second users.Connect C2 can set up in a uni-directional or bi-directional manner: higher bit rate can be realized by the connection of unidirectional type.Known technology can be adopted to realize mobile terminal 12,14 keep these two simultaneously to connect C1 and C2 movable: such as, the referenced many RAB technology for third generation mobile terminal, and for the DTM technology of second generation mobile terminal.

Fig. 3 schematically illustrates the example of the mobile terminal 12 that can use composite services from the angle of functional module.Mobile terminal 12 comprises the antenna 121 being applicable to send/receive, radio-frequency (RF) transceiver 122, GPRS module 123, coding/decoding unit 124, loud speaker 125, video camera 126, microphone 127, screen 128, keyboard 129, there is the processor (or CPU, CPU) 130 of associated memory 131.Mobile terminal 12 is associated typically via suitable electrical contact and SIM (subscriber identity module, not shown in Fig. 3).

Antenna 121 allows communicating of dealing mobile network's radio base station usually with radio-frequency (RF) transceiver 122.Corresponding voice in the signal that the user that loud speaker 125 and microphone 127 convert electrical signals to mobile terminal 12 usually can hear, vice versa.Keyboard 129 allows user and mobile terminal manually mutual usually, to send dependent instruction, such as, and choice menus option or selection telephone number etc.Screen 128 can be such as LCD screen (LCD, liquid crystal display), and it is applicable to display video usually.Video camera 126, such as CCD (charge-coupled device) video camera, be applicable to catch video usually.GPRS module 123 generally includes group and wraps/unpack device and buffering area, and it can encapsulate the radio blocks from mobile network in grouping, or the radio blocks unpacked in the grouping that provided by a upper protocol layer, for being sent to mobile network by radio-frequency (RF) transceiver 122 and antenna 121.Coding/decoding unit 124 (such as H.263 Video Codec) is connected to loud speaker 125, microphone 127, display screen 128 and video camera 126: its usually management captured by video camera 126 or the video that will show on display screen 128 and/or captured by microphone 127 or the coding/decoding of the audio frequency component that will be sent to loud speaker 125.Processor 130 monitors the operation of the disparate modules comprised in mobile terminal 12 and various activity.The memory 131 combined with processor 130 comprises the software application for supervisory communications.Especially, according to an aspect of the present invention, memory 131 comprises the application software for the composite services of control and management at least one.Observe in addition, although coding/decoding 124 unit is as shown in independent entity in figure 3, it also can realize by means of the software program resided in the memory 131 of mobile terminal 12.

As mentioned above, according to an aspect of the present invention, the mobile terminal of user that can use composite services has been installed the software application for control and management composite services.This software application can realize as independent Client application, and it can be arranged in the operating system of mobile terminal, or " connection (cabled) " is in the firmware of mobile terminal.Especially, software application comprises the module being configured for and controlling to connect from mobile terminal to circuit domain and to packet domain.Software application can start automatically when mobile terminal starts.But with user, it can also can forbid that automatically starting this should be used to provide, or this application is manually performed by user.Optimization software is applied in running background to produce the result of in fact " invisible " between the normal operating period of mobile terminal to user.Once perform, this software application just can identify with and/or toward the relevant event signaling of the calling performed by this mobile terminal.Especially, this application can identify at least:

About the signaling of incoming call set up in circuit domain; And/or

About come into force in circuit domain set up breathe out signaling; And/or

The signaling of the interruption of the local ongoing calling performed in circuits territory; And/or

The signaling of the interruption of the ongoing calling of long-distance support in circuits territory.

Observe the possibility of end of calling when mobile terminal (or remote mobile terminal) is in outside radio coverage by chance during at least two kinds of situations listed above are also included in calling.In addition, the full list that situation listed above does not form the Possible event that software application can identify is observed.

When mobile terminal affiliated user wants to call out another one user (belonging to same mobile network or different, fixing or mobile network), in routine selection (usually performed by keyboard or select from the phone directory in the SIM stored in the terminal or it) the period software application nonintervention of the telephone number that user will call out.Calling subscriber can start to call out with the interlocutor of completely normal mode to his/her, presses suitable button on mobile terminals typically.This calling is route in circuit domain usually.

When called subscriber answer, just connect between the mobile terminal of calling subscriber and the terminal of called subscriber in the circuit domain of communication network.When this connection establishment, the mobile terminal to calling subscriber sends a confirmation, and its connection calling subscriber can being used just set up is for communicating with the interlocutor of his/her.Software application intercepts this confirmation signaling and automatic (that is, using terminal interaction without the need to user) starts connection procedure in the packet domain of mobile network.Usually, this process is provided to the connection of packet domain access point (APN, APN).This connection procedure hypothesis GGSN 54 is just asking the telephone number of the terminal of this connection typically via radius protocol notice APN.After having checked its voucher, APN makes in packet domain unique address (typically IP address) be associated with this telephone number, and identical information is sent to GGSN 54, otherwise identical information is forwarded to the terminal requesting connection by GGSN 54.APN also keeps the association between the telephone number identifier of mobile terminal (or in circuit domain) of mobile terminal and institute's distributing IP address address of mobile terminal (or in packet domain) in suitable database.This association can also be sent to the miscellaneous equipment in network, such as WAP gateway.Connection to packet domain typically uses opens from mobile terminal to SGSN and the PDP Context of GGSN of GPRS network core of mobile network has come.

Equally, connect once establish grouping, calling subscriber just has available circuit and connects with the interlocutor's general communication by voice and his/her, and the grouping with access data service simultaneously connects.In other words, calling subscriber can use at least one composite services.Such as, calling subscriber can utilize grouping to connect and check one or more webpage from its mobile terminal, and he/her can utilize circuit to connect the content that this webpage is discussed with the interlocutor of his/her simultaneously.In another example, user can utilize grouping connection to download on his/her mobile terminal by the content of the E-mail address of his/her, and he/her can utilize circuit to connect the content that the one or more email messages received are discussed with the interlocutor of his/her simultaneously.If the terminal of called subscriber is equally also connected to packet network (or typically having an IP address), the peer to peer connection between these two user terminals can be set up in packet domain, with the video call allowing calling subscriber to send/receive to/from called subscriber, and he/her can comment on the image occurred in two terminals together with the interlocutor of his/her simultaneously.In order to set up peer to peer connection, the terminal of two users exchanges themselves address (typically being their IP address) in packet domain.In order to perform this exchange, the software application in two users, at least one terminal run can comprise the message being addressed to the terminal of this long-distance user of its IP address by such as command routing.This message can be such as SMS (sending and receiving short messages service) or USSD (unstructured. supplementary service data) type of message.Preferred peer to peer connection creates a mechanism and to occur in description of the invention subsequently.

In order to make gladly to enjoy service, after grouping connection establishment, it is available that software application typically makes one or more menu option become on mobile terminals, uses available specific data services for being connected by grouping.Typically, this menu option can be accomplished can be activated by software application by button (or soft key) suitable on keyboard.Such as, when simple web page is browsed or mail downloads, relevant menu option can become available when receiving the IP address from APN.When sharing video with long-distance user, can receive such as can use the confirmation of these composite services from the foundation of the peer to peer connection of long-distance user and/or long-distance user after activate related menu option easily.Becoming among the available menu option sharing composite services for video, may have such as start video send option and/or for break of video send option and/or video pause (or freeze frame) option.Especially, when freeze frame and/or image send interrupt, that it can cause making easily being taken by video camera and just in the terminal of two users, kept available by the last piece image (or frame) of encoding unit encodes before video capture interrupts.In fact, compared with the run-of-the-mill of transmitted video, this last piece image can accomplish to have higher quality in the terminal of receiver, video: this depends on and does not make the more efficiently fact of the coding of still image owing to performing interpolation on each frame in essence for obtaining each follow-up frame (due to the width that in fact image is always identical).

Can also be applied to for realizing using the process of composite services to carry out a small amount of change the incoming call situation receiving the terminal of his/her user above with reference to the performance description from the calling of user.In the case, the active procedure of the connection in packet domain can trigger according to the signaling of the call setup carrying out automatic network, and it sends typically via the suitable button pressed on the keyboard of terminal after user receives external call.

When calling subscriber or called subscriber determine to terminate the audio call in circuit domain, one of them of two users buttons to end calling typically via to press in the terminal of his/her suitable.Connection in circuit domain is cancelled thus.Preferably, once receive the confirmation that the connection in circuit domain cancels, then make it possible to use resident software application autocommand on the mobile terminal of the user of composite services to cancel the connection in packet domain.In addition, about the menu option of these composite services becomes unavailable from this software application.Same process can be applied to the situation (when using mobile terminal) terminating the calling in circuit domain owing to lacking radio covering.Therefore mobile terminal turns back to its normal Standby state, prepares to receive or perform calling (and the management with running background allows to use the software application of composite services).

The above circuit and grouping two kinds of establishment of connection processes, and allow to use the process of composite services to have several advantage.First, this realization occurs in the mode completely transparent to user, and in fact user implements or receipt of call in circuit domain in completely normal mode, finds that the terminal of his/her is also arranged to use grouping to connect when access success is set up.In addition, grouping connects the fact in fact only opened in the process of audio call and allows available composite services can use the user of larger quantity potentially, without using the packet network wherein achieving IPv6 agreement, and from the angle of Virtual network operator without the need to having when according to sizable pool of available IP addresses to be solved when use IPv4 agreement.In fact, the address in packet domain is only distributed after establishing audio call, and is preferably release at the end of same call.

In order to avoid further " waste " of IP address, the software application of management composite services can configure in the mode not being triggered to the connection procedure of packet network under some particular cases of circuit calling.Such as, when application software only allow to use wherein two users can exchange the composite services of some videos, connection procedure to packet network can become unavailable when calling out and coming into force or received from particular number: such as, during calling free code, or during calling out the number corresponding to information service and/or telephone-answering system service, come or during number abroad (with reside at external telex network during in the disabled situation of this service), come or toward belong to other operators or use different technologies network calling (or for from be fixed to movement " mixing " call out, vice versa) period, etc..Opening of eliminating grouping connection can be configured to by what apply typically by aerial operation update software under these particular cases.In addition, particularly in composite services to mobile terminal send video become available, when the quality of radio signal or intensity lower than under a specific critical threshold, the connection procedure not being triggered to packet network can be caused easily.In service only at third generation networks (3G, such as UMTS) upper available, and do not have to have carried out identical consideration when enough 3G coverage (but such as, by second generation network, GSM/GPRS, ensure that coverage is to perform normal audio call) yet.

In the following description, according to an aspect of the present invention, will the preferred embodiment of the composite services between two users User_A, User_B of detail display mobile communications network by way of example.Provide mobile terminal UE _ A and UE_B to respectively user User_A and User_B.Composite services are services of such as " gained and finding " (SWIS) or " video is shared " type, namely, wherein User_A and User_B can by the peer to peer connection type in packet domain, exchanges the service of the video taken by integrated video camera in they respective mobile terminal UE _ A and UE_B during the normal telephone session of setting up in circuit domain.This service is made also to be managed by the equipment comprised in the packet domain of mobile communications network, this equipment represents with " SWIS " (hereinafter referred to " SWIS server ") in the diagram, it is connected to the APN of the packet domain being linked into mobile communications network, utilizes SWIS server mobile terminal UE _ A with UE_B to communicate.Fig. 4 shows a kind of very common scheme of institute's framework.

Fig. 5 shows in this illustration, makes user User_A and User_B can use the flow process of the different operating performed by this service.When terminal UE _ A and UE_B start (501,502), user User_A and User_B registers in the mobile communication network.Except this registration, terminal UE _ A and UE_B preferably activates the software application (hereinafter referred to " SWIS application ") that management allows to use " gained and finding " composite services and use itself in an automatic fashion.SWIS application is preferably loaded on terminal UE _ A and UE_B in back way, and the management of SWIS service by this way occurs in the mode transparent to user User_A and User_B.

At a time, user User_A calling party User_B (503).Calling can be initiated according to any typical form by user User_A, such as, inserted the telephone number of user User_B by the keyboard of terminal UE _ A, or search for this number in the phone directory stored on terminal UE _ A or on associated SIM.User User_A typically presses suitable button and starts calling party User_B on the keyboard of the terminal UE _ A of his/her.This calling is routed to the MSC MSC_B of terminal UE _ B in its lower registration by terminal UE _ A at the MSC MSC_A of its lower registration, and is routed to terminal UE _ B therefrom.Incoming call notice (504) is sent to terminal UE _ B: typically, be that a display screen display at the terminal UE _ B of called subscriber User_B corresponds to this notice, there is the message of the instruction of the telephone number of the terminal of calling subscriber User_A.User User_B typically presses suitable button and accepts this calling (505) on the terminal UE _ B of his/her.The acceptance of user User_B to this calling is informed to the terminal UE _ A (506) of user User_A, and just between terminal UE _ A and terminal UE _ B, establishes calling thus.These two user User_A and User_B can be conversed by the connection of setting up in the circuit domain of mobile communications network and the other side by this way.Call establishment is in Figure 5 by the grey thick line signal between MSC MSC_A and MSC_B.

When receiving user User_B and receiving notice (506) of calling, walk abreast with the connection that circuit domain activates, the SWIS application of the upper operation of terminal UE _ A of user User_A and the connection that activates in circuit domain concurrently automatically (that is, without the need to mutual with the user User_A on terminal UE _ A) be activated to the connection (507) of the packet domain of mobile communications network.Typically, the connection of the access point APN (such as, radius server) checked is obtained to the connection request of packet domain to the voucher (that is, he/her uses the right of packet service) of wherein user User_A.If user User_A has the right to use packet service, be then the unique address IP_addA in his/her terminal UE _ A dynamic assignment one packet network, typically be IP address.In this access point, the association typically between the telephone number CLI_A (or another identifier of the terminal UE _ A of circuit intra domain user User_A) of the terminal of maintenance customer User_A and the IP address ip _ addA (or another identifier of the terminal UE _ A of grouping intra domain user User_A) distributing to terminal UE _ A.Be maintained in the miscellaneous equipment that this association can also comprise in the packet domain of mobile communications network.Connected by grouping, the terminal UE _ A of user User_A can access the packet network core PS of mobile communications network and make service available by it.In GPRS or UMTS network, this is corresponding to the PDP Context opened from terminal UE _ A to packet network PS core.

In a similar fashion, when receiving the calling from user User_B, the SWIS application of the upper operation of terminal UE _ B of user User_B and the connection that activates in circuit domain concurrently automatically (that is, without the need to mutual with the user User_B on terminal UE _ B) be activated to the connection (508) of the packet domain of mobile communications network.Typically, the connection of the access point APN (such as, radius server) checked is obtained to the connection request of packet domain to the voucher (that is, he/her uses the right of packet service) of wherein user User_B.The access point APN that terminal UE _ B is connected to can be the identical or different access point of the access point that is connected to terminal UE _ A.If user User_B has the right to use packet service, be then the unique address IP_addB in his/her terminal UE _ B dynamic assignment one packet network, typically be IP address.In this access point, the association typically between the telephone number CLI_B (or another identifier of the terminal UE _ B of circuit intra domain user User_B) of the terminal of maintenance customer User_B and the IP address ip _ addB (or another identifier of the terminal UE _ B of grouping intra domain user User_B) distributing to terminal UE _ B.Be maintained in the miscellaneous equipment that this association can also comprise in the packet domain of mobile communications network.Connected by grouping, the terminal UE _ B of user User_B can access the packet network PS core of mobile communications network and make service available by it.In GPRS or UMTS network, this is corresponding to the PDP Context opened from terminal UE _ B to packet network PS core.

After receiving address ip _ addA, the SWIS application activating of the upper operation of terminal UE _ A of user User_A is to the transmission (509) of the registration request of SWIS server.The activation of this request occurs in an automatic fashion, thus reaches the transparent result of user User_A.Utilize this request (509), terminal UE _ A sends the signal of its appearance in the packet domain of mobile network to SWIS server.Advantageously, terminal UE _ A can also by the packet domain of mobile communications network in the registered application (509), with the connection of having set up in circuit domain concurrently, require the connection allowing terminal UE _ B.Reach this result, terminal UE _ A must know the address of terminal UE _ B in packet domain, i.e. address ip _ addB.In preferably realizing at one, the request sent by terminal UE _ A at least comprises address (typically being IP address ip _ addA) in the packet domain distributing to terminal UE _ A and the identifier of terminal UE _ B in circuit domain (typically being the telephone number CLI_B of user User_B), utilizes this identifier to pass through the call connection user User_A set up in circuit domain.In a preferred embodiment, the request sent by terminal UE _ A can comprise one or more TCP or UDP and divide into groups, and this packet bearer wherein identifier CLI_B obtains the address ip _ addA of transmission.SWIS server receives the request from terminal UE _ A, and in storage area, preserve the address ip _ addA of terminal UE _ A and the identifier CLI_B of user User_B.By inquiring the suitable equipment comprised in the packet domain of (510) mobile communications network, the access point APN (or WAP gateway) that such as terminal UE _ A is connected to, SWIS server obtains the identifier CLI_A of terminal UE _ A in the circuit domain of mobile communications network corresponding to the address ip _ addA of terminal UE _ A in the packet domain of mobile communications network.This identifier CLI_A and the address ip _ addA of request receiving by being sent by terminal UE _ A explicitly also by SWIS server stores in storage area.

In a similar fashion, after receiving address ip _ addB, the SWIS application activating of the upper operation of terminal UE _ B of user User_B to SWIS server permission and manage the transmission (512) of request of this service.The activation of this request occurs in an automatic fashion, thus reaches the transparent result of user User_B.Utilize this request (512), terminal UE _ B sends its signal occurred in the packet domain of mobile network to SWIS server.Advantageously, terminal UE _ B can also by the packet domain of mobile communications network in the registration request (512), with the connection of having set up in circuit domain concurrently, require the connection allowing terminal UE _ A.For this purpose, terminal UE _ B must know the address of terminal UE _ A in packet domain, i.e. address ip _ addA.In preferably realizing at one, the request sent by terminal UE _ B at least comprises address (typically being IP address ip _ addB) in the packet domain distributing to terminal UE _ B and the identifier of terminal UE _ A in circuit domain (typically being the telephone number CLI_A of user User_A), utilizes this identifier to pass through the call connection user User_B set up in circuit domain.In a preferred embodiment, the request sent by terminal UE _ B can comprise one or more TCP or UDP and divide into groups, and this packet bearer wherein identifier CLI_A obtains the address ip _ addB of transmission.SWIS server receives the request from terminal UE _ B, and in storage area, preserve the address ip _ addB of terminal UE _ B and the identifier CLI_A of user User_A.By inquiring the suitable equipment comprised in the packet domain of (513) mobile communications network, the access point (or WAP gateway) that such as terminal UE _ B is connected to, SWIS server obtains the identifier CLI_B of terminal UE _ B in the circuit domain of mobile communications network corresponding to the address ip _ addB of terminal UE _ B in the packet domain of mobile communications network.This identifier CLI_B and the address ip _ addB of request receiving by being sent by terminal UE _ B explicitly also by SWIS server stores in storage area.

In this, SWIS server has following available information: corresponding to identifier CLI_A, and the terminal request with address ip _ addA is connected to the terminal with identifier CLI_B; Corresponding to identifier CLI_B, the terminal request with address ip _ addB is connected to the terminal with identifier CLI_A.According to the coupling of these information that SWIS server can store with suitable charting, SWIS server can identify terminal UE _ A and UE_B and be connected to circuit domain, and allows the parallel peer to peer connection between two terminals in packet domain thus.This realize available by packet domain between terminal UE _ A and UE_B IA interchange address IP_addA and IP_addB occur.

The exchange of address ip _ addA and IP_addB between terminal UE _ A and UE_B can by SWIS server by will be sent to terminal UE _ A, UE_B one or both of they before respective registration request (509,512) respective confirmation signaling in insert this address and drive.In a preferred embodiment, the address of " interlocutor " terminal in packet domain is inserted into and is only sent in the confirmation signaling of a terminal.This confirmation such as can be sent to terminal UE _ B (514), comprises the address ip _ addA of terminal UE _ A, sends one " sky " simultaneously and confirms that (511) are to terminal UE _ A.Once receive this confirmation (514), then the SWIS application fetches of the upper operation of terminal UE _ B goes out address ip _ addA and is stored in the storage area of terminal UE _ B.In addition, when extracting the address ip _ addA of terminal UE _ A, the relative address IP_addA that the SWIS applications exploiting of the upper operation of terminal UE _ B has just received, comprise its oneself address ip _ addB, packet domain use automatic message distribute (515) response terminal UE _ A: this message can be peer message cover joint word type, is realized by TCP or the UDP grouping including predetermined characteristic sequence.Address ip _ the addB of terminal UE _ B is extracted in the SWIS application of the upper operation of terminal UE _ A from these message, and is stored in the storage area of terminal UE _ A.In addition, once receive the address ip _ addB of terminal UE _ B, the SWIS application of the upper operation of terminal UE _ A just typically on the display screen of terminal UE _ A automatic activation by suitable button (or soft key) the available menu option of the keyboard of same terminal, the video camera integrated with the terminal UE _ A of his/her can be activated by this menu option user User_A and also send and comprise by the video of the image of this video camera captured in real-time to terminal UE _ B.In addition, what the SWIS of the upper operation of terminal UE _ A applied the message (515) sent by terminal UE _ B before automatic transmission has received confirms terminal UE _ B (516).Once receive this confirmation (516), the SWIS application of the upper operation of terminal UE _ B just typically on the display screen of terminal UE _ B automatic activation by suitable button (or soft key) the available menu option of the keyboard of same terminal, the video camera integrated with the terminal UE _ B of his/her can be activated by this menu option user User_B and also send and comprise by the video of the image of this video camera captured in real-time to terminal UE _ A.

In this, terminal UE _ A and UE_B of two user User_A and User_B makes it possible to use SWIS to serve completely.Advantageously, two terminal UE _ A and UE_B allow to use combination S WIS service, except the regular event of the call performed except user User_A and the regular event of this calling of reception that performed by user User_B, do not relate to any further action of user User_A and User_B on terminal UE _ A and UE_B.This advantage especially realizes because of the following fact: sent to SWIS server by terminal UE _ A and UE_B, for asking the request (509 of the address of interlocutor in packet domain connected in circuit domain, 512) (namely can't help SWIS server is forwarded to terminal oneself, the request that terminal UE _ A sends can not be forwarded to terminal UE _ B, vice versa), but they stop at server S WIS place.This make to avoid by user User_A and User_B in order to allow this service and in order to send/receive this video by the action on terminal UE _ A and UE_B clearly receive equally over a packet network be connected to become necessity.Activate menu option at terminal UE _ A and UE_B equally to occur in an automated way due to the simple acknowledge message received from SWIS server.The request forward do not sent by terminal UE _ A and UE_B to SWIS server, and uses acknowledge message to allow significantly to reduce the quantity realizing the signaling message needed for SWIS service between terminal UE _ A, UE_B and SWIS server as the trigger of menu option activation on the UE_B of terminal UE _ A.This advantageously allows that SWIS is served and can use user User_A and User_B within the quite short time.

Refer again to Fig. 5, when user User_A wants to start to user User_B transmission video, he/her presses the button (or soft key) corresponding to the menu option activated on the display screen of the terminal UE _ A of his/her.Alternatively, the SWIS application of the upper operation of terminal UE _ A sends the notice of " startup video " (517) from trend SWIS server, such as the object of service charging, allow SWIS startup of server for transmitting the counting of the video institute service time sent by user User_A.In addition, the upper available menu option of SWIS application amendment terminal UE _ A of the upper operation of terminal UE _ A, itself and the stopping from the transmission of video of user User_A is made to keep strokes by this way (optional, it forbids aforesaid menu option, and activates the another one option " stopping video " activated by different buttons or soft key).In addition, the SWIS application activating of the upper operation of terminal UE _ A catches the image of the video camera from terminal UE _ A, and activates the correlative coding being applicable to transmission on grouping connects.Finally, the connection of SWIS application by the packet domain of mobile communications network realizes of the upper operation of terminal UE _ A, utilizes its address ip _ addB to send image (518) (may have been used buffer) of coding to terminal UE _ B.User User_A can see that he/her is just being sent to the video of user User_B on the display screen of the terminal UE _ A of his/her.Advantageously, in this stage, the communication between SWIS server nonintervention UE_A and UE_B.This allows still to use the equipment control of quite limited disposal ability to serve, because this equipment only must manage the data flow of simple signaling message and non-complex for the SWIS of a large number of users.Once receive video (buffer may be utilized to perform by terminal UE _ B), user User_B just can see this video on the display screen of the terminal UE _ B of his/her.The menu option that video on terminal UE _ B sends preferably is forbidden in the SWIS application of the upper operation of terminal UE _ B, with the conflict of connection establishment in the packet domain avoiding mobile communications network.When user User_A decision stops video transmitting, he/her just presses and has just made the button (or soft key) of stopping video available on the display screen of terminal UE _ A: the SWIS application of the upper operation of terminal UE _ A stops catching from the image of video camera and the image to terminal UE _ B transmission coding.Alternatively, the SWIS application of the upper operation of terminal UE _ A sends the notice of " stopping video " (519) from trend SWIS server, such as the object of service charging, SWIS server is allowed to stop transmitting the counting of the video institute service time sent by user User_A.

Similar, when user User_B wants to start to user User_A transmission video, he/her just presses the button (or soft key) corresponding to the menu option activated on the display screen of the terminal UE _ B of his/her.Alternatively, the SWIS application of the upper operation of terminal UE _ B sends the notice of " startup video " (520) from trend SWIS server, such as the object of service charging, allow the SWIS startup of server counting of video institute service time for transmitting user User_B and sending.In addition, the upper available menu option of SWIS application amendment terminal UE _ B of the upper operation of terminal UE _ B, itself and the stopping from the transmission of video of user User_B is made to keep strokes by this way (optional, it forbids aforesaid menu option, and activates the another one option " stopping video " activated by different buttons or soft key).In addition, the SWIS application activating of the upper operation of terminal UE _ B catches the image of the video camera from terminal UE _ B, and activates the correlative coding being applicable to transmission on grouping connects.Finally, the connection of SWIS application by the packet domain of mobile communications network realizes of the upper operation of terminal UE _ B, utilizes its address ip _ addA to send image (521) (may have been used buffer) of coding to terminal UE _ A.User User_B can see that he/her is just being sent to the video of user User_A on the display screen of the terminal UE _ B of his/her.Advantageously, in this stage, the communication between SWIS server nonintervention UE_B and UE_A.Once receive video (buffer may be utilized to perform by terminal UE _ A), user User_A just can see this video on the display screen of the terminal UE _ A of his/her.The menu option that the video on terminal UE _ A sends preferably is forbidden in the SWIS application of the upper operation of terminal UE _ A, to avoid the conflict of upper connection establishment in the packet domain of mobile communications network.When user User_B decision stops video transmitting, he/her just presses and has just made the button (or soft key) of stopping video available on the display screen of terminal UE _ B: the SWIS application of the upper operation of terminal UE _ B stops catching from the image of video camera and the image to terminal UE _ A transmission coding.Alternatively, the SWIS application of the upper operation of terminal UE _ B sends the notice of " stopping video " (522) from trend SWIS server, such as the object of service charging, SWIS server is allowed to stop transmitting the counting of the video institute service time sent by user User_B.

In one of them of two users, such as user User_A, when wanting to terminate the communication with user User_B, he/her typically presses suitable button on the keyboard of the terminal UE _ A of his/her, thus he/her is wanted the Notice of Intention (523) of terminated call to mobile communications network (in circuit domain).The SWIS application of the upper operation of terminal UE _ A intercepts (524) such a notice and sends the signaling (526) terminating service and use to SWIS server.Terminal UE _ the B of another user User_B receives the notice (525) of terminated call in circuit domain.The SWIS application of the upper operation of terminal UE _ B is truncated to such a notice and sends the signaling (527) terminating service and use to SWIS server.SWIS server can use confirmation (528,529) to reply signaling from terminal UE _ A and UE_B.Once receive this confirmation, the SWIS application that terminal UE _ A and UE_B runs just can order the connection of terminal UE _ A and UE_B made in packet domain invalid (530,531), and discharges address ip _ addA and IP_addB.The end of calling out between terminal UE _ A and the UE_B in circuit domain is indicated by another grey thick line in Figure 5.

Above description with reference to wherein terminal UE _ A and UE_B can both support the situation of composite services.When by when the terminal of composite services (such as UE_A) can be supported to call out can not support the terminal of composite services, the SWIS application automatic activation of the upper operation of terminal UE _ A is to the connection of packet domain, it receives the address ip _ addA of oneself, and sends a request for registration to SWIS server.As illustrational before, in the executed situation of calling of the well afoot to particular number, forbid that such a process is favourable.Under any circumstance, if terminal UE _ A is not in the confirmation of its registration request or receive IP address in peer socket in the time-out preset (typically configurable) scope, then SWIS application can disconnect from packet domain by autocommand, thus discharges useless " waste " IP address fast.When the terminal of composite services (such as UE_B) can be supported to receive the calling from the terminal can not supporting composite services, the SWIS application automatic activation of the upper operation of terminal UE _ B is to the connection of packet domain, it receives the address ip _ addB of oneself, and sends registration request to SWIS server.As illustrational before, when the call source of well afoot from particular number, forbid that such a process is favourable.Under any circumstance, if in the time-out preset (typically configurable) scope terminal UE _ B not its registration request or in peer socket, receive IP address, then SWIS application can disconnect from packet domain by autocommand, thus discharges useless " waste " IP address fast.Similar time-out also can realize the possible problem for managing in grouping establishment of connection.The duration of these time-out can be passed through the suitable field domain in the response message of registration request by server, or by configuring typically by aerial operation.

In a preferred version, can imagine that terminal UE _ A and UE_B exchange notice and acknowledge message are to avoid simultaneously from the situation of two terminal transmission videos.Such as, as shown in FIG. 6 a, after user User_A selects the menu option about transmission of video on the terminal UE _ A of his/her, the SWIS application of the upper operation of terminal UE _ A sends a notification message (being expressed as INVITE in Fig. 6 a) automatically to terminal UE _ B.Once receive this notification message, the SWIS application of the upper operation of terminal UE _ B is just set up the reception of video and automatically sends acknowledge message (being expressed as ACK in Fig. 6 a) to terminal UE _ A.Once receive this confirmation, the SWIS application of the upper operation of terminal UE _ A just starts transmission of video.

When " simultaneously " is from terminal UE _ A and UE_B notice distribution message, as shown in Figure 6 b, the realization of priority policy agreement can be adopted.Such as, in these cases, priority can be supplied to the terminal made a call in circuit domain by this strategy.Other strategy also can be selected.In above-described example, UE_A is the terminal made a call in circuit domain.As shown in Figure 6 b, when UE_B sends its oneself notification message to UE_A simultaneously, the UE_B notification message received from UE_A replaces the confirmation of the notification message of himself.In the case, priority policy is followed in the SWIS application of the upper operation of terminal UE _ B, sends the confirmation to the notification message from UE_A.

In an also preferred version, can the use of Session ID be added to aforesaid function, Session ID by SWIS server-assignment to terminal UE _ A and UE_B, to identify the peer to peer connection between two terminals.This Session ID allow to make communication protocol more key strengthen, and, as will in the following description pointed by, it also allows the structure simplifying at least some message, so that the implementation procedure of composite services can be accomplished more effectively and quick.Specifically, illustrational process can revise to distinguish from terminal UE _ A at SWIS server as follows before, the registration request that two kinds of UE_B are dissimilar: the first registration (perform or received by associated terminal after the switch when being such as applied in the first calling by SWIS), a first registration registration subsequently.Two dissimilar registration requests are distinguished based on the following fact: in the first registration request, Session ID (hereinafter referred to as SessionID) is not sent to SWIS server by SWIS application, the SessionID that in the registration request simultaneously after the first registration request, SWIS application is received by SWIS server before inserting.

More particularly, reference terminal UE_A, when SWIS server place first registers, after opening the connection in packet domain, terminal UE _ A sends registration request to SWIS server, and as previously mentioned, request comprises its address ip _ addA and the telephone number CLI_B of terminal UE _ B.As pointing out more in detail in the following description, more parameter can be comprised in the first registration request, the parameter of the configuration of the Video coding that involved terminals UE_A such as, arranged, and/or about the parameter of SWIS application version, and/or the address for opening the APN that grouping connects that terminal UE _ A is connected to.Parameter SessionID is not comprised, because SWIS server does not also send it to terminal UE _ A in the first registration request.

SWIS server receives the registration request from terminal UE _ A, extracts its address ip _ addA, and the existence of identification parameter SessionID.Based on this parameter, SWIS server request APN is to obtain the telephone number CLI_A of terminal UE _ A.Once telephone number CLI_A obtains, SWIS server just generates Session ID SessionID.This identifier can be made up of such as numeral or alphanumeric random sequence.In a preferred embodiment, SWIS server generates key ID, uses this key ID encrypted telephone number CLI_A.According to this key ID and according to the telephone number CLI_A using this secret key encryption, SWIS server generates Session ID SessionID, such as:

SessionlD＝(CLI_A) _ID+[ID] _x

Symbol (CLI_A) herein _iDrepresent the telephone number CLI_A by means of key ID encryption, and symbol [ID] _xrepresent that key ID is not expressly but is preferably the same algorithm used when SWIS server is used in calculating CLI_A, and the key X computations be using only known to SWIS server show.Thus the parameter SessionID produced is sent to terminal UE _ A by SWIS server in the acknowledge message to the registration request before it.In this acknowledge message, SWIS server can comprise other information in addition, such as, may revise to the parameters of the Video coding of terminal UE _ A.Once SWIS server verification terminal UE_A and UE_B there is the calling of well afoot in circuit domain, same Session ID SessionID is also sent to terminal UE _ B in the confirmation of its registration request.Once establish the peer to peer connection in packet domain, this parameter SessionID can advantageously be comprised in the message of terminal UE _ A and UE_B exchange, and to make communication protocol, due to relevant cross-over control, key is strong more.

In registration request after the first registration request, terminal UE _ A sends the parameter SessionID that the telephone number of the interlocutor (such as same terminal UE _ B or the 3rd terminal UE _ C) in its oneself address ip _ addA, circuit domain and SWIS server receive in aforesaid current registration request.Preferably, in this request, terminal UE _ A no longer sends any information except previously described parameter to SWIS server.SWIS server can extract the telephone number CLI_A (being encrypted by means of the key ID about aforesaid registration request) of the terminal UE _ A sending this registration request from the parameter SessionID comprised in the registration request, and again need not inquire APN " parsing " address ip _ addA.This allows the implementation procedure accelerating composite services, and decreases the process load on the access point APN of packet domain.As mentioned above, it is expired when the Session ID SessionID being sent to SWIS server by same terminal peer to peer connection is between two terminals closed.

In the following example, give before the report of possible part of some signaling messages that describes.These parts are commonly referred to the field be inserted in various message.Relevant explanation is used to give the full list of the field occurred in all examples hereinafter reported below:

Command: represent the order (in the message that the beginning of process sends) performed;

Version: the version representing the SWIS application be arranged in terminal;

Type: the type representing terminal;

Remote IP: the IP representing recipient;

Remote MSISDN: the telephone number representing recipient;

APN: the APN representing the connection in packet domain;

Bitrate: the speed representing the transmission of video that the video encoder in terminal uses;

Framerate: the quantity representing the frame of video in the chronomere that the video encoder in terminal uses;

Timeout: represent the stand-by period starting peering session message;

Session-ID: represent peering session;

SizeDisplay: the size representing screen;

RFU: be expressed as and use the field retained possible future.

In following reported all examples, expect by carry the IP address distributing to sending side terminal TCP or UDP grouping send signaling: for this reason, this address never indicates in the field that will insert.

In first example (table 1), report the possible structure of the first login request message from terminal to SWIS server.

Table 1

In second example (table 2), report the possible structure of the first registration request login request message subsequently from terminal to SWIS server.

Table 2

In the 3rd example (table 3), report the possible structure being sent to the acknowledge message of the terminal that have sent the first registration request by SWIS server.

Table 3

In the 4th example (table 4), report the possible structure of the acknowledge message being sent to the terminal that have sent the first registration request registration request subsequently by SWIS server.

Table 4

In the 5th example (table 5), report the possible structure of the signaling message being sent to the closedown peer to peer connection of SWIS server by terminal.

Table 5

In the 6th example (table 6), report the possible structure of the message started from one of them peering session being sent to another of two terminals.

Table 6

In the 7th example (table 7), report the possible structure of the signaling message being sent to the transmission of video startup of SWIS server by one of them terminal.

Table 7

In the 8th example (table 8), report the possible structure of the signaling message being sent to the end transmission of video of SWIS server by one of them terminal.

Table 8

This signaling message can be produced by the known protocol of such as HTTP and SIP.Signaling message can send with the mode of (key by suitable) of encryption or optimized encoding (such as by means of Base64 or Huffman coding), to improve the security classification of communication protocol.

This description completes with particular reference to mobile communications network.But the applicant believes that the service enjoyed by fixed network can also be applied or be applicable to the above instruction provided.Especially it can be one and is connected to fixed network, and a terminal being connected to two users of mobile network is interconnected in a call, and can enjoy composite services.

Claims

1. be provided for the method that the first terminal of communication network and the second terminal can use composite services, described communication network comprise can with the server of described first terminal and the second terminal communication, described method comprises:

In the circuit domain of described communication network, set up first between described first terminal and described second terminal connect;

The confirmation of described first establishment of connection is received described first and described second terminal;

Wherein, owing to receiving described confirmation, described confirmation described receive trigger described first and described second terminal to being certainly dynamically connected of packet domain of described communication network;

Respectively give described first and described second terminal distribution described in communication network described packet domain in the first and second addresses, described first and described second address be associated with described first and first and second identifiers of described second terminal in the described circuit domain of described communication network respectively;

Wherein receive described first address triggering from described server and automatically send from described first terminal the equipment comprised in the first request to the described packet domain of described communication network, described first request comprises described first address and described second identifier;

Wherein receive described second address triggering from described server and automatically send the second request to described equipment from described second terminal, described second request comprises described second address and described first identifier;

To associate based on first between described first identifier with described first address and second between described second identifier with described second address associates, the described packet domain of described communication network is set up second between described first and described second terminal connect, described first associate with described second and is asked by described equipment according to receiving described first and described second and perform.

2. method according to claim 1, wherein set up described second connection and comprise:

Described first address is sent to described second terminal from described equipment.

3. method according to claim 2, described method also comprises:

Owing to receiving described first address, described second terminal activates the menu option about connecting the service of enjoyable at least one by described second.

4., according to the method for Claims 2 or 3, wherein set up described second connection and comprise:

Described second address is sent to described first terminal from described second terminal.

5. method according to claim 4, described method also comprises:

Owing to receiving described second address, described first terminal activates the menu option about connecting the service of enjoyable at least one by described second.

6. according to the method for claim 3 or 4, wherein said first or described second terminal at least one menu option activation from described first or described second request transmission predetermined time interval in occur.

7., according to the method for claim 3 or 4, at least one menu option wherein said allows to connect by described second, from described first terminal to described second terminal or from described second terminal to described first terminal transmission of video.

8. method as claimed in one of claims 1-7, wherein said first or described second address comprise an IP address or the 2nd IP address of distributing to described first terminal or described second terminal.

9. method as claimed in one of claims 1-8, wherein said first or described second identifier comprise the first or second telephone number of described first or described second terminal.

10. method as claimed in one of claims 1-9, wherein by described first or described second terminal make described first or described second request comprise first or the 2nd TCP divide into groups.

11. according to any one method in claim 1-10, and described method also comprises:

Terminate described first to connect;

The confirmation of described first end be connected is received with described second terminal described first;

Owing to receiving the described first described confirmation of end connected, automatically terminate described first and described second terminal to the described connection of the described packet domain of described communication network.