CN105791165A

CN105791165A - Service carrying method, communication terminal, control network element S-CSCF and system

Info

Publication number: CN105791165A
Application number: CN201610113194.5A
Authority: CN
Inventors: 张子敬; 武选航
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2016-07-20
Anticipated expiration: 2036-02-29
Also published as: CN105791165B; WO2017147959A1

Abstract

The embodiment of the invention discloses a service carrying method, which may comprise the following steps: a communication terminal performs media negotiation with a communication opposite end at a first access network according to a service request; the communication terminal performs first media resource reservation at the first access network according to the media negotiation result; if the reserved resource of the first access network cannot meet a target resource, the communication terminal performs second media resource reservation at a second access network; after the communication terminal sends a message of completing first media resource reservation to the communication opposite end, the communication terminal receives a message of completing second media resource reservation sent by the communication opposite end after completing media resource reservation; the communication terminal builds service connection with the communication opposite end, and respectively carries media streams at the first access network and the second access network according to carrying modes of the media streams corresponding to target services in the message of completing first media resource reservation. The embodiment of the invention also provides a communication terminal, a control network element S-CSCF and a system, thus, network pressure can be shared effectively, quality of service of the services can be improved, and user experience is increased.

Description

A kind of service bearer method, communication terminal, control network element S-CSCF and system

Technical field

The present invention relates to IP Multimedia System (IMS, IP Multimedia Subsystem), especially relate to And one service bearer method, communication terminal, control network element S-CSCF and system.

Background technology

In today of communication technology high speed development, IP technology and Internet across link layer transfer medium should With widely available, single voice communication mode has developed into brand-new multimedia communication mode, increasingly Meet people's demand to Communication Development.

IMS (IP Multimedia Subsystem) is as an IP multimedia of 3GPPR5 stage definitions Subsystem, is a kind of brand-new multimedia service form, and using packet domain (PS) is its top level control letter Order and the bearer path of media transmission, introduce conversation initialized protocol (SIP, Session Initiation Protocol) as Service control agreement, SIP extension simple, easy, the convenient feature of media combination are utilized, Controlling to separate the multimedia service providing abundant with carrying by Service control, it disclosure satisfy that present end End client is more novel, the demand of more diversified multimedia service.IMS is owing to supporting multiple access and enriching Multimedia service, become the core net standard architecture in full IP epoch.

VoLTE (Voice overLTE) is speech business based on IMS, as a kind of IP data transmission Technology, it is not necessary to 2G/3G net, whole service bearers, on 4G network, are LTE (Long Term Evolution) ultimate voice solution, its voice can use PS territory to realize completely, is accessing Netcom crosses the carrying of PS packet domain, its session control and business data transmission and realizes based on IP, can realize Data and speech business unification under consolidated network, this means that operator can provide for VoLTE The control of higher level and management, mobile broadband voice application will become main flow, and traditional C/S territory will be by Gradually replace.Being equally based on IP and transmit voice, WiFi can be made by VoWiFi (Voice overWiFi) For access network, and being finally linked into IMS network and complete voice and carry realization on IP, it is that operator can To control and the ip voice service of management.The VoWIFI of the communications field is can be built in communication terminal Function, the core net of operator can be directly entered, it is achieved and the intercommunication of Cellular Networks, on the rule of 3GPP Fan Zhong, WIFI access is considered as the wireless access kind of a kind of non-3 gpp, then realize VoWIFI Mainly have two ways, i.e. speech data to be considered trusted by WIFI access carrier core net to access With trustless access, wherein, the mode that trusted accesses is to complete under the WIFI network of operator, User terminal need not set up ipsec tunnel with network, and directly by PDN GW (Packet Data Network Close) just can access mobile network, trustless access then needs by ePDG core network access, and user is eventually Ipsec tunnel carrying data are used between end and eDPG.Although and the quality of WIFI mass directly affects The speech quality of VoWIFI, but in indoor and large-scale shopping plaza Wi-Fi hotspot covering and Signal quality is all more satisfactory, owing to VoWIFI makes user obtain lower voice rate, and can User is made to receive the deficiency of dtr signal not indoor covering making up 4G network outdoor base station, because of And VoWiFi is that everybody is more favored in the similar scenes such as indoor and large-scale shopping plaza.

At present, Domestic Carriers has begun to dispose the network of VoLTE, about VoWIFI, T-Mobile First USA was proposed VoWIFI business based on ePDG framework in 2014, it is believed that for VoWiFi The foreseeable future that is deployed in should also can gradually realize along with the development of the communication technology, thus terminal is inevitable There will be the most resident state of VoLTE and VoWiFi.But, for single business, pass through The Qos that VoLTE or VoWiFi carrying can be provided by is limited, if single business being led to Cross VoLTE or VoWiFi access network to share carrying, if VoLTE or VoWiFi access network without Method meets business demand, then will be unable to provide preferably Qos, reduces Consumer's Experience.Such as, currently use When family needs to carry out multi-party video calls, VoLTE or VoWiFi is needed to reserve a plurality of audio stream and video The resource of stream, if the most single VoLTE or VoWiFi cannot meet business demand, it is impossible to reserve foot Enough audio streams or the resource of video flowing, will be unable to provide more preferable Qos to carry multi-party video calls, Thus reduce Consumer's Experience.

Summary of the invention

Embodiments provide a kind of service bearer method, communication terminal, control network element S-CSCF And system, when single access network cannot carry business, VoLTE and VoWiFi two can be passed through Network shares carrying, thus shares network pressure, improves QoS, increases Consumer's Experience.

In view of this, first aspect present invention provides a kind of service bearer method, it may include:

Communication terminal carries out media negotiation according to service request at the first access network and Correspondent Node；

Communication terminal carries out the first media resource reservation according to media negotiation result in the first access network；

If communication terminal determines that the resource that the first access network is reserved cannot meet target resource, then communication terminal Carrying out the second media resource reservation in the second access network, target resource is the target service that service request is corresponding Required resource, the resource that the second access network is reserved is not in reserved the remaining of the first access network in target resource Remaining resource；

When communication terminal respectively in the first access network and the second access network by controlling network element S-CSCF to logical After letter opposite end sends the first media resource reservation completion message, communication terminal receives Correspondent Node and completes matchmaker After body resource reservation, the second media resource reservation sent based on the first media resource reservation completion message is complete Becoming message, the first media resource reservation completion message includes the bearing mode of Media Stream corresponding to target service；

Communication terminal sets up service connection based on the second media resource reservation completion message and Correspondent Node, and Media Stream is carried in the first access network and the second access network respectively according to bearing mode.

In conjunction with the first aspect of the embodiment of the present invention, in the first reality of the first aspect of the embodiment of the present invention Executing in mode, the first access network is VoLTE, and the second access network is VoWIFI；Or,

First access network is VoWIFI, and the second access network is VoLTE.

In conjunction with the first embodiment of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the second embodiment on the one hand, carry out the second media resource at communication terminal in the second access network pre- Before staying, communication terminal according to service request the first access network and Correspondent Node carry out media negotiation it After, this service bearer method also includes:

Communication terminal judges whether the resource that the first access network is reserved meets target resource.

In conjunction with the second embodiment of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the third embodiment on the one hand, when the first access network is VoLTE, and the second access network is VoWIFI Time, communication terminal judges whether resource reserved for VoLTE meets target resource and include:

Communication terminal obtains the first bandwidth door of resource reserved for VoLTE by evolved base station eNodeB Limit, and determine the target bandwidth of target resource, communication terminal judges that whether the first bandwidth threshold is not less than mesh Marker tape width；

Or,

When communication terminal is after evolved base station eNodeB sends the first media resource reservation request message, logical Letter terminal detects whether the first media resource reservation failed message that eNodeB returns.

In conjunction with the third embodiment of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 4th kind of embodiment on the one hand, this service bearer method also includes:

If communication terminal judges that the first bandwidth threshold is less than target bandwidth, then communication terminal determines that VoLTE is pre- The resource stayed cannot meet target resource；

Or,

If communication terminal detection has the first media resource reservation failed message that eNodeB returns, then communicate end End determines that resource reserved for VoLTE cannot meet target resource.

In conjunction with the second embodiment of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 5th kind of embodiment on the one hand, when the first access network is VoWIFI, and the second access network is VoLTE Time, communication terminal judges whether resource reserved for VoWIFI meets target resource and include:

Communication terminal obtains the second bandwidth door of resource reserved for VoWIFI by wireless network access point AP Limit, and determine the target bandwidth of target resource, communication terminal judges that whether the second bandwidth threshold is not less than mesh Marker tape width；

Or,

When communication terminal is after wireless network access point AP sends the second media resource reservation request message, logical Letter terminal detects whether the second media resource reservation failed message that AP returns.

In conjunction with the 5th kind of embodiment of the first aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the 6th kind of embodiment on the one hand, this service bearer method also includes:

If communication terminal judges that the second bandwidth threshold is less than target bandwidth, then communication terminal determines VoWIFI Reserved resource cannot meet target resource；

Or,

If communication terminal detection has the second media resource reservation failed message that AP returns, then communication terminal is true Determine resource reserved for VoWIFI and cannot meet target resource.

Second aspect present invention provides a kind of service bearer method, it may include:

When communication terminal is respectively after the first access network and the second access network complete media resource reservation, control Network element S-CSCF receives the first media that communication terminal sends respectively in the first access network and the second access network Resource reservation completion message；

First media resource reservation completion message is sent to Correspondent Node by S-CSCF, so that Correspondent Node After completing media resource reservation, based on the first media resource reservation completion message to communication terminal the second matchmaker Body resource reservation completion message.

In conjunction with the second aspect of the embodiment of the present invention, in the first reality of the second aspect of the embodiment of the present invention Execute in mode, at S-CSCF, the first media resource reservation completion message was sent before Correspondent Node, should Service bearer method also includes:

The first internet protocol address that S-CSCF inquiring communication terminal is bound with the first access network respectively The 2nd IP address with the second access network binding；

Oneth IP address and the 2nd IP address are sent to application server by S-CSCF, so that application clothes The relevant information belonging to same target service is sent extremely by business device according to an IP address and the 2nd IP address Corresponding Correspondent Node.

Third aspect present invention provides a kind of communication terminal, it may include:

Media negotiation module, for carrying out media association according to service request at the first access network and Correspondent Node Business；

First media resource reservation module, for carrying out first according to media negotiation result in the first access network Media resource reservation；

Second media resource reservation module, for when communication terminal judge the reserved resource of the first access network without When method meets target resource, then carrying out the second media resource reservation in the second access network, target resource is industry Resource needed for the target service that business request is corresponding, the reserved resource of the second access network be in target resource not At the surplus resources that the first access network is reserved；

Receiver module, for passing through Controling network in the first access network and the second access network respectively when communication terminal Unit S-CSCF, after Correspondent Node sends the first media resource reservation completion message, receives Correspondent Node complete After becoming media resource reservation, the second media resource sent based on the first media resource reservation completion message is pre- Staying completion message, the first media resource reservation completion message includes the carrying of Media Stream corresponding to target service Mode；

Set up module, for setting up business even based on the second media resource reservation completion message and Correspondent Node Connect；

Carrier module, for carrying media in the first access network and the second access network respectively according to bearing mode Stream.

In conjunction with the third aspect of the embodiment of the present invention, in the first reality of the third aspect of the embodiment of the present invention Executing in mode, the first access network is VoLTE, and the second access network is VoWIFI；Or,

First access network is VoWIFI, and the second access network is VoLTE.

In conjunction with the first embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the second embodiment of three aspects, communication terminal also includes:

Judge module, for judging whether the resource that the first access network is reserved meets target resource.

In conjunction with the second embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In the third embodiment of two aspects, it is judged that module includes:

First judges submodule, and for being VoLTE when the first access network, the second access network is VoWIFI Time, it is judged that whether resource reserved for VoLTE meets target resource；

Or,

Second judges submodule, and for being VoWIFI when the first access network, the second access network is VoLTE Time, it is judged that whether resource reserved for VoWIFI meets target resource.

In conjunction with the third embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In 4th kind of embodiment of two aspects, first judges that submodule includes:

First acquiring unit, for obtaining resource reserved for VoLTE by evolved base station eNodeB Bandwidth threshold；

First determines unit, for determining the target bandwidth of target resource；

First judging unit, for judging whether the bandwidth threshold that the first acquiring unit obtains is not less than first Determine the target bandwidth that unit determines；

Or,

First detector unit, for sending the first media resource when communication terminal to evolved base station eNodeB After reservation requests, detect whether the first media resource reservation failed message that eNodeB returns.

In conjunction with the 4th kind of embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In 5th kind of embodiment of two aspects, communication terminal also includes:

First determines module, is used for when communication terminal judges the first bandwidth threshold less than target bandwidth, then Determine that resource reserved for VoLTE cannot meet target resource；

Or,

Second determines module, for detecting, when communication terminal, the first media resource reservation having eNodeB to return During failed message, it is determined that resource reserved for VoLTE cannot meet target resource.

In conjunction with the third embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In 6th kind of embodiment of two aspects, second judges that submodule includes:

Second acquisition unit, for obtaining resource reserved for VoWIFI by wireless network access point AP Bandwidth threshold；

Second determines unit, for determining the target bandwidth of target resource；

Second judging unit, for judging whether the bandwidth threshold that second acquisition unit obtains is not less than second Determine the target bandwidth that unit determines.

Or,

Second detector unit, for sending the second media resource when communication terminal to wireless network access point AP After reservation requests, detect whether the second media resource reservation failed message that AP returns.

In conjunction with the 6th kind of embodiment of the third aspect of the embodiment of the present invention, in the of the embodiment of the present invention In 7th kind of embodiment of two aspects, communication terminal also includes:

3rd determines module, is used for when communication terminal judges the second bandwidth threshold less than target bandwidth, then Determine that resource reserved for VoWIFI cannot meet target resource；

Or,

4th determines module, failed for the second media resource reservation having AP to return when communication terminal detection During message, it is determined that resource reserved for VoWIFI cannot meet target resource.

Fourth aspect present invention provides one to control network element S-CSCF, it may include:

Receiver module, for completing media money in the first access network and the second access network respectively when communication terminal After source is reserved, receive the first media money that communication terminal sends respectively in the first access network and the second access network Completion message is reserved in source；

First sending module, for the first media resource reservation completion message is sent to Correspondent Node, with Make Correspondent Node after completing media resource reservation, based on the first media resource completion message to communication eventually End sends the second media resource reservation completion message.

In conjunction with the fourth aspect of the embodiment of the present invention, in the first reality of the fourth aspect of the embodiment of the present invention Execute in mode, control network element S-CSCF and also include:

Enquiry module, the first Internet protocol bound with the first access network respectively for inquiring communication terminal IP address and the 2nd IP address of the second access network binding；

Second sending module, for an IP address and the 2nd IP address being sent to application server, with Make application server will belong to the relevant of same target service according to an IP address and the 2nd IP address Information sends to corresponding Correspondent Node.

Fifth aspect present invention provides a kind of service bearer system, including the third aspect of above-described embodiment The control network element S-CSCF of communication terminal and fourth aspect.

As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that

In the present embodiment, when communication terminal carries out matchmaker according to service request at the first access network and Correspondent Node After body is consulted, communication terminal can carry out the first media resource according to media negotiation result in the first access network Reserved, if communication terminal determines that the resource that the first access network is reserved cannot meet target resource, then communicate end End can carry out the second media resource reservation in the second access network, and this target resource is that service request is corresponding Resource needed for target service, the resource that the second access network is reserved is not in the first access network in target resource Reserved surplus resources, and when communication terminal passes through Controling network in the first access network and the second access network respectively Unit S-CSCF is after Correspondent Node sends the first media resource reservation completion message, and communication terminal can receive Correspondent Node after completing media resource reservation, the sent based on the first media resource reservation completion message Two media resource reservation completion messages, and based on this second media resource reservation completion message and Correspondent Node Set up service connection, and can be according to matchmaker corresponding to target service in the first media resource reservation completion message The bearing mode of body stream carries Media Stream in the first access network and the second access network respectively.Hold from above-mentioned business It is known that the resource working as single access network reserved cannot meet the resource needed for target service in support method Time, the resource needed for reserved target business can be carried out by two access networks, it is achieved business share carrying, The most not only share network pressure, and reduce the probability that service connection between communication ends is failed, from And improve QoS, add Consumer's Experience.

Accompanying drawing explanation

Fig. 1 is a network architecture schematic diagram；

Fig. 2 is one embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 3 is another embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 4 is another embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 5 is another embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 6 is another embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 7 is another embodiment schematic diagram of service bearer method in the embodiment of the present invention；

Fig. 8 is one embodiment schematic diagram of communication terminal in the embodiment of the present invention；

Fig. 9 is another embodiment schematic diagram of communication terminal in the embodiment of the present invention；

Figure 10 is control mono-embodiment schematic diagram of network element S-CSCF in the embodiment of the present invention；

Figure 11 is control another embodiment schematic diagram of network element S-CSCF in the embodiment of the present invention.

Detailed description of the invention

In order to make those skilled in the art be more fully understood that the present invention program, real below in conjunction with the present invention Execute the accompanying drawing in example, the technical scheme in the embodiment of the present invention be clearly and completely described, it is clear that Described embodiment is only the embodiment of a present invention part rather than whole embodiments.Based on Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise The every other embodiment obtained, all should belong to the scope of protection of the invention.

Term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ", The (if present) such as " the 3rd ", " the 4th " is for distinguishing similar object, without being used for retouching State specific order or precedence.Should be appreciated that the data of so use can be exchanged in the appropriate case, So that the embodiments described herein can be real with the order in addition to the content except here illustrating or describe Execute.Additionally, term " includes " and " having " and their any deformation, it is intended that cover not Exclusive comprises, such as, contain series of steps or the process of unit, method, system, product or Equipment is not necessarily limited to those steps or the unit clearly listed, but can include the most clearly listing Or for intrinsic other step of these processes, method, product or equipment or unit.

In the embodiment of the present invention, it is assumed that there are the first access network and the second access network, the first access network with Second access network can be respectively the IP-based communication network of communication terminal and carry out sharing carrying, if first connects Networking is VoLTE, then the second access network is VoWIFI, otherwise, the first access network is VoWIFI, the Two access networks are then VoLTE.

At present, along with the progressively maturation of VoLTE business, the most increasing user terminal is supported wireless Fidelity WIFI function, operator utilizes IMS can realize LTE voice calling service and WIFI voice leads to Call business.Concrete, the user of the communication terminal holding above-mentioned functions both can be by LTE network to using Family provides the voice calling service of VoLTE, it is also possible to provides the user with VoWIFI voice by WIFI and leads to Call business.

In currently existing scheme, different access networks are respectively communication terminal and provide service bearer, i.e. different accesses Service bearer between net is separate, as shown in Figure 1, it is assumed that user needs to carry out multi-party video calls, The communication terminal so initiating multi-party video calls one side needs transmission and sends multi-path media resource information, If this service needed carries 6 road audio frequency medias and 6 road video medias, then communication terminal can be based on VoLTE IMS network is connected, it is achieved VoLTE provides 6 road audio frequency medias and 6 road video medias by eNodeB Carrying, or under WLAN, communication terminal can connect IMS based on VoWIFI by AP Network, it is achieved VoLTE provides 6 road audio frequency medias and the carrying of 6 road video medias.But for single For business, the Qos that be can be provided by by VoLTE or VoWiFi carrying is limited, for transmission The more business of media content is all the more so, multi-party video calls as described above, it may be necessary to VoLTE Or VoWiFi reserves the resource of a plurality of audio stream and video flowing, fill if VoLTE or VoWiFi cannot reserve The resource of foot, then cannot carry by finishing service, it is possible to causes service connection failure.

In the embodiment of the present invention, based on the state that communication terminal VoLTE and VoWIFI is the most resident, with First access network is VoLTE, and the second access network is to illustrate, when single movement is held as a example by VoWIFI Contained network network (VoLTE) limited bandwidth, and when the service quality provided cannot meet business demand, Ke Yitong Crossing VoWiFi to provide the carrying of partial service, also shown in FIG. 1, communication terminal can pass through ENodeB connects IMS network by 3 road audio frequency and 3 tunnel video bearer at VoLTE, other 3 road audio frequency and 3 road videos then can connect IMS network by AP and be carried on VoWiFi, share network pressure with this, Improve QoS, increase Consumer's Experience.

For ease of understanding, based on the state that VoLTE and VoWIFI is the most resident, real to the present invention below The idiographic flow executed in example is described, and refers to Fig. 2, service bearer method one in the embodiment of the present invention Embodiment includes:

201, communication terminal carries out media negotiation according to service request at the first access network and Correspondent Node；

When communication terminal needs to carry out service connection with Correspondent Node, communication terminal is as calling party side Need to the Correspondent Node initiating business request as callee side, during service request, logical Letter terminal can carry out media negotiation, for each according to this service request at the first access network and Correspondent Node Plant the code/decode format that media select both sides all to support.The idiographic flow of media negotiation can be: logical Letter terminal sends INVITE by controlling network element S-CSCF to Correspondent Node, and this message can arrange Go out all medium types that communication terminal in this business is desirable for, when Correspondent Node utilizes 183 (SessionProgress) when message returns response message, can portable communication terminal and Correspondent Node ability The common factor of collection, i.e. Correspondent Node is returned from for every kind of medium type in the multiple coding of communication terminal support The multiple coded system that oneself supports, afterwards, communication terminal can select only according to own resources present situation Organize suitable encoding scheme one by one, utilize RPACK message to be sent to Correspondent Node.

It should be noted that the communication terminal in the present embodiment can be calling party side, Correspondent Node can Think callee side, after limiting, be the most i.e. not repeated to limit herein.In actual applications, In the present embodiment, the Correspondent Node as callee side can be user terminal, it is also possible to be server, Specifically do not limit.

It is understood that the first access network in the present embodiment is communication terminal carries out service connection acquiescence First-selected access network, this first access network can be set, and i.e. stays at VoLTE and VoWIFI simultaneously The state stayed, can be set as VoLTE or VoWIFI, does not limits.

202, communication terminal carries out the first media resource reservation according to media negotiation result in the first access network；

In the ims network, communication terminal and Correspondent Node are to use signaling PDP context to transmit session Initiation protocol sip message, uses media PDP Context to carry out media stream, and the process of resource reservation is i.e. It it is the process setting up media PDP Context.

In the present embodiment, after communication terminal and Correspondent Node carry out media negotiation, communication terminal can root The first media resource reservation is carried out in the first access network, then after media negotiation according to media negotiation result, If in the case of cannot ensureing that communication terminal and Correspondent Node all complete resource reservation, will not be right to communication End carries out such as the prompting of the modes such as ring, and this first media resource reservation process is communication terminal by with the One access network underlying physical completes alternately.

It is understood that the media negotiation result in the present embodiment can include medium type and/or compile solution Code algorithmic format, does not limits.

If 203 communication terminals determine that the resource that the first access network is reserved cannot meet target resource, then communicate Terminal carries out the second media resource reservation in the second access network；

If communication terminal determines that the resource that the first access network is reserved cannot meet target resource, then communication terminal Can carry out the second media resource reservation in the second access network, this target resource is the mesh that service request is corresponding Resource needed for mark business, the resource that the second access network is reserved is not pre-in the first access network in target resource The surplus resources stayed.

Such as, in actual applications, it is assumed that terminal needs to carry out multi-party video calls, this multi-party video leads to Resource needed for call business is 6 road audio frequency and 6 road videos, and the first access network cannot reserve 6 road audio frequency With 6 road videos, when can only reserve 3 road audio frequency and 3 road video, then communication terminal can connect second Network reserved remaining 3 road audio frequency and 3 road videos.It should be noted that in actual applications, first The resource that access network and the second access network can be reserved is other classification and capacity, the present embodiment simply citing Explanation.

204, when communication terminal respectively in the first access network and the second access network by controlling network element S-CSCF After Correspondent Node sends the first media resource reservation completion message, communication terminal receives Correspondent Node complete After becoming media resource reservation, the second media resource sent based on the first media resource reservation completion message is pre- Stay completion message；

When communication terminal is respectively after the media resource reservation of the first access network and the second access network completes, can To send the first media resource reservation completion message by S-CSCF to Correspondent Node, so that Correspondent Node After the media resource reservation of self completes, communication terminal can receive Correspondent Node and provide based on the first media The second media resource reservation completion message that completion message sends is reserved in source, and this first media resource reservation is complete Message is become to include the bearing mode of Media Stream corresponding to target service.

Concrete, in actual applications, when communication terminal, to complete the first media resource in the first access network pre- After staying, UPDATE message can be sent to S-CSCF in the first access network, and when communication terminal is the After two access networks complete the second media resource reservation, UPDATE message can be sent extremely in the second access network S-CSCF, the UPDATE message sent by the first access network and the second access network respectively is all identified with mesh The bearing mode of the Media Stream that mark business is corresponding, such as, passes through " m=video 3400RTP/AVP VoLTE, M=video 3400RTP/AVP VoWIFI " form, S-CSCF collects communication terminal and connects by first Network and after the UPDATE message of the second access network transmission, with the first media resource reservation completion message Form sends to application server so that application server is by the first media resource reservation completion message point The message not being identified with VoLTE and VoWIFI sends to corresponding Correspondent Node, and Correspondent Node self is also Media resource reservation can be carried out, then the media resource reservation at self completes and receiving application service After the first media resource reservation completion message that device sends, the second media resource can be sent to communication terminal Reserved completion message.

205, communication terminal sets up business even based on the second media resource reservation completion message and Correspondent Node Connect, and carry Media Stream in the first access network and the second access network respectively according to bearing mode.

After communication terminal receives the second media resource reservation completion message, communication terminal is described with communicate right End is all to needing the business carried out to reserve resource, it is ensured that the unobstructed of business is carried out, then can be right Correspondent Node carries out the prompting of the modes such as such as ring, and communication terminal can set up business even with Correspondent Node Connect, it is possible to according to the Media Stream that the target service carried in the first media resource reservation completion message is corresponding Bearing mode carry Media Stream in the first access network and the second access network respectively, reach network pressure point Load.

In the present embodiment, when target service cannot carry in same access network, can be by the One access network and the second access network carry out media resource reservation respectively, reach target service and share the mesh of carrying , it is prevented effectively from the situation that target service cannot be connected between communication terminal with Correspondent Node, simultaneously can To alleviate network pressure, improve the service quality of business, increase Consumer's Experience.

It should be noted that owing to the first access network can be VoLTE, the second access network can be VoWIFI, or the first access network can be VoWIFI, and the second access network can be VoLTE, thus logical The concrete mode of letter terminal carrying out service carrying is different, illustrates separately below:

One, the first access network is VoLTE, and the second access network is VoWIFI:

In the present embodiment, the first access network can be VoLTE, and the second access network can be VoWIFI, please Refering to Fig. 3 and Fig. 4, in the embodiment of the present invention, another embodiment of service bearer method includes:

301, communication terminal carries out media negotiation at VoLTE with Correspondent Node according to service request；

Content based on the explanation of embodiment step 201 shown in Fig. 2, the first access network given tacit consent to by communication terminal For VoLTE, when communication terminal needs to Correspondent Node initiating business request, communication terminal can be in industry Media negotiation is carried out, for each at VoLTE with Correspondent Node according to this service request during business request Plant the code/decode format that media select both sides all to support.

302, communication terminal carries out the first media resource reservation according to media negotiation result at VoLTE；

Content based on the explanation of embodiment step 202 shown in Fig. 2, communication terminal is complete with Correspondent Node After becoming media negotiation, the first media resource reservation can be carried out according to negotiation result at VoLTE.

303, communication terminal judges whether resource reserved for VoLTE meets target resource, the most then perform Step 304, if it is not, then perform step 305；

When communication terminal carries out the first media resource reservation according to media negotiation result at VoLTE, communication Terminal may determine that whether resource reserved for VoLTE meets target resource.

In the present embodiment, communication terminal judges whether resource reserved for VoLTE meets the concrete of target resource Mode can be:

Or,

Only illustrate that in the present embodiment, communication terminal judges with two examples it is understood that above-mentioned Whether resource reserved for VoLTE meets the concrete mode of target resource, in actual applications, communication terminal The judgment mode that can also use other uses, as long as whether can interpolate that resource reserved for VoLTE Meeting target resource, concrete judgment mode does not limits.

It should be noted that in actual applications, because according to service request, communication terminal determines that communication is right After end, i.e. can determine that the target bandwidth of target resource needed for target service, and it carries out at VoLTE Before one medium reservation, it is also possible to carry out the first media resource reservation by obtaining VoLTE to eNodeB The bandwidth threshold of resource that can be reserved, therefore, communication terminal can carry out the first medium reservation at VoLTE Judge whether resource reserved for VoLTE meets target resource, it means that in this case before, this The step 303 of embodiment can perform before step 302.Additionally, due to communication terminal is at VoLTE When carrying out the first media resource reservation, can flow to send for each the media that target service is corresponding ENodeB sends a first media resource reservation request message, if this Media Stream is in the pre-profit retention of VoLTE Merit, eNodeB then can return the first media resource reservation success message to communication terminal, if this Media Stream Reserve unsuccessfully at VoLTE, then eNodeB can return the first media resource reservation to communication terminal and unsuccessfully disappears Breath, therefore communication terminal can be by detecting whether the first media resource reservation failure that eNodeB returns This mode of message judges whether resource reserved for VoLTE meets target resource, it means that at this kind In the case of, the present embodiment step 303 can perform after step 302.Thus, the present embodiment walks The execution sequential of rapid 303 is decided as circumstances require, and does not limits.

304, other flow process is performed；

If communication terminal judges that resource reserved for VoLTE meets target resource, such as communication terminal judges the The first media that one bandwidth threshold does not has eNodeB to return not less than target bandwidth or communication terminal detection provide Failed message is reserved in source, then explanation VoLTE can ensure that business demand, provides preferably for target service Service quality, communication terminal can carry out the carrying of Media Stream corresponding to target service on VoLTE.

305, communication terminal carries out the second media resource reservation at VoWIFI；

If communication terminal judges that resource reserved for VoLTE meets target resource, such as communication terminal judges the One bandwidth threshold is pre-less than the first media resource that target bandwidth or communication terminal detection have eNodeB to return Stay failed message, then communication terminal can reserve its media resource that can reserve at VoLTE, then Can carry out the second media resource reservation at VoWIFI, resource reserved for this VoWIFI is in target resource Not at the surplus resources that VoLTE is reserved.

Step 306 in the present embodiment is to the step 204 in step 307 and embodiment illustrated in fig. 2 to step Rapid 205 identical, here is omitted.

Concrete, in step 307, communication terminal is respectively at VoLTE and VoWIFI according to bearing mode Carrying Media Stream.

It should be noted that the concrete signaling diagram that embodiment illustrated in fig. 4 is embodiment illustrated in fig. 3, mainly Illustrate that communication terminal and Correspondent Node carry out the interaction of message during service connection, as in step 401, Communication terminal and Correspondent Node carry out media negotiation, have actually passed INVITE, 183 (Session Progress), PRACK message mutual, this step 201 in above-mentioned embodiment illustrated in fig. 2 has Describe in detail, and at communication terminal respectively after VoLTE and VoWIFI carries out resource reservation, the most permissible UPDATE message is sent to S-CSCF respectively at VoLTE and VoWIFI, it is to be understood that by Communication terminal, the UPDATE message that VoLTE sends to S-CSCF the step for, can be that communication is whole End originally sends after VoLTE completes the first media resource reservation immediately, it is also possible to be communication terminal itself Retransmit after VoWIFI completes the second media resource reservation, the two UPDATE message i.e. S-CSCF The the first media resource reservation completion message being aggregated into, 200 sent by Correspondent Node in Fig. 4 OK/UPDATE message that is second media resource reservation completion message, shows that Correspondent Node also completes media Resource reservation, this step 204 in the embodiment depicted in figure 2 is also described in detail, and specifically repeats no more.

It is understood that the signaling diagram of embodiment illustrated in fig. 4 is with the first access network as VoLTE, the Two access networks are to illustrate as a example by VoWIFI, if the first access network and the second access network change, then should Fig. 4 changes the most accordingly, does not limits.

In the present embodiment, when communication terminal carries out media association according to service request and Correspondent Node at VoLTE Shang Hou, can carry out the first media resource reservation according to media negotiation result at VoLTE, it is possible to When VoLTE cannot meet the target resource needed for target service, carry out the second media resource at VoWIFI pre- Stay so that communication terminal and Correspondent Node, can be respectively at VoLTE and VoWIFI after service connection Carry out same business shares carrying, effectively alleviates network pressure with this, increases the experience effect of user. Additionally, first communication terminal carries out the first media resource reservation at VoLTE, can effectively prevent VoWIFI Network quality the best time need switch VoLTE situation.

Two, the first access network is VoWIFI, and the second access network is VoLTE:

In the present embodiment, the first access network can be VoWIFI, and the second access network can be VoLTE, please Refering to Fig. 5, in the embodiment of the present invention, another embodiment of service bearer method includes:

501, communication terminal carries out media negotiation at VoWIFI with Correspondent Node according to service request；

Content based on the explanation of embodiment step 201 shown in Fig. 2, the first access network given tacit consent to by communication terminal For VoWIFI, when communication terminal needs to Correspondent Node initiating business request, communication terminal can be in industry Media negotiation is carried out, for each at VoLTE with Correspondent Node according to this service request during business request Plant the code/decode format that media select both sides all to support.

502, communication terminal carries out the first media resource reservation according to media negotiation result at VoWIFI；

Content based on the explanation of embodiment step 202 shown in Fig. 2, communication terminal is complete with Correspondent Node After becoming media negotiation, the first media resource reservation can be carried out according to negotiation result at VoWIFI.

503, communication terminal judges whether resource reserved for VoWIFI meets target resource, the most then hold Row step 504, if it is not, then perform step 505；

When communication terminal carries out the first media resource reservation according to media negotiation result at VoWIFI, communication Terminal may determine that whether resource reserved for VoWIFI meets target resource.

In the present embodiment, communication terminal judges whether resource reserved for VoWIFI meets the concrete of target resource Mode can be:

Or,

Only illustrate that in the present embodiment, communication terminal judges with two examples it is understood that above-mentioned Whether resource reserved for VoWIFI meets the concrete mode of target resource, in actual applications, communication terminal The judgment mode that can also use other uses, as long as whether can interpolate that resource reserved for VoWIFI Meeting target resource, concrete judgment mode does not limits.

It should be noted that in actual applications, because according to service request, communication terminal determines that communication is right After end, i.e. can determine that the target bandwidth of target resource needed for target service, and it carries out at VoWIFI Before one medium reservation, it is also possible to carry out the first media resource reservation institute energy by obtaining VoWIFI to AP The bandwidth threshold of reserved resource, therefore, communication terminal can be before VoWIFI carries out the first medium reservation Judge whether resource reserved for VoWIFI meets target resource, it means that in this case, this enforcement The step 503 of example can perform before step 502.Additionally, due to communication terminal is carried out at VoWIFI During the first media resource reservation, can flow to send AP for each the media that target service is corresponding and send one Bar the first media resource reservation request message, if this Media Stream is reserved successfully at VoWIFI, AP then can The first media resource reservation success message is returned, if this Media Stream is in the reserved mistake of VoWIFI to communication terminal Lose, then AP can return the first media resource reservation failed message to communication terminal, and therefore communication terminal is permissible By detecting whether that first this mode of media resource reservation failed message that AP returns judges Whether resource reserved for VoWIFI meets target resource, it means that in this case, and the present embodiment walks Rapid 503 can perform after step 502.Thus, in the present embodiment, the execution sequential of step 503 depends on Depending on situation, do not limit.

504, other flow process is performed；

If communication terminal judges that resource reserved for VoWIFI meets target resource, such as communication terminal judges the Two bandwidth threshold detect, less than target bandwidth or communication terminal, the second media resource reservation not having AP to return Failed message, then explanation VoWIFI can ensure that business demand, provides preferably Service Quality for target service Amount, communication terminal can carry out the carrying of Media Stream corresponding to target service on VoWIFI.

505, communication terminal carries out the second media resource reservation at VoLTE；

If communication terminal judges that resource reserved for VoWIFI is unsatisfactory for target resource, such as communication terminal judges Second bandwidth threshold detects, less than target bandwidth or communication terminal, the second media resource reservation having AP to return Failed message, then communication terminal can reserve its media resource that can reserve at VoWIFI, then may be used To carry out the second media resource reservation at VoLTE, resource reserved for this VoLTE is not exist in target resource The surplus resources that VoWIFI is reserved.

Step 506 in the present embodiment is to the step 204 of step 507 and embodiment illustrated in fig. 2 to step 205 is identical, and here is omitted.

Concrete, in step 507, communication terminal is respectively at VoWIFI and VoLTE according to bearing mode Carrying Media Stream.

In the present embodiment, when communication terminal carries out media association according to service request and Correspondent Node at VoWIFI Shang Hou, can carry out the first media resource reservation according to media negotiation result at VoWIFI, it is possible to When VoWIFI cannot meet the target resource needed for target service, carry out the second media resource at VoLTE pre- Stay so that communication terminal and Correspondent Node, can be respectively at VoWIFI and VoLTE after service connection Carry out same business shares carrying, effectively alleviates network pressure with this, increases the experience effect of user. If additionally, VoWIFI network quality preferably in the case of preferably VoFIWI carry out the first media resource Reserved, can effectively alleviate the network pressure of general VoLTE.

Described service bearer method from communication terminal side above, below the embodiment of the present invention from Controling network Unit S-CSCF side specifically describes service bearer method, refers to Fig. 6, and in the embodiment of the present invention, business is held Another embodiment of support method includes:

601, when communication terminal is respectively after the first access network and the second access network complete media resource reservation, Control network element S-CSCF and receive communication terminal respectively in the first access network and the first of the transmission of the second access network Media resource reservation completion message；

When communication terminal is respectively after the first access network and the second access network complete media resource reservation, the most logical Secondly first letter terminal carries out the first media resource reservation in the first access network, carries out the in the second access network Two media resource reservations, can send to S-CSCF in the first access network and the second access network respectively UPDATE message, S-CSCF receives after the UPDATE message that different access networks send, permissible Collected by these UPDATE message is the first media resource reservation completion message.

602, the first media resource reservation completion message is sent to Correspondent Node by S-CSCF, so that logical Letter opposite end is after completing media resource reservation, based on the first media resource reservation completion message to communication terminal Send the second media resource reservation completion message.

In the present embodiment, after S-CSCF receives the first media resource reservation completion message, can pass through Application server will send to Correspondent Node in the first media resource reservation completion message so that Correspondent Node After the media resource reservation of self completes, can be based on the first media resource reservation completion message to communication Terminal sends the second media resource reservation completion message.

In the present embodiment, control network element S-CSCF and can receive communication terminal respectively in the first access network and the The first media resource reservation completion message that two access networks send, it is possible to by this first media resource reservation Completion message send to Correspondent Node, it means that communication terminal to same target service in the first access network Carry out sharing carrying with the second access network, so can effectively alleviate network pressure, improved business service Quality, increases the experience effect of user.

Referring to Fig. 7, in the embodiment of the present invention, another embodiment of service bearer method includes:

Step 701 in the present embodiment is identical with the step 601 of embodiment illustrated in fig. 6, the most superfluous State.

702, the first Internet protocol IP that S-CSCF inquiring communication terminal is bound with the first access network respectively Address and the 2nd IP address of the second access network binding；

Owing to communication terminal can carry out media resource reservation in the first access network and the second access network respectively, So communication terminal can realize the binding of an IP address and in the second access network in the first access network respectively Realize the binding of the 2nd IP address.In actual applications, if same target service is different at two Access network carries out resource reservation, then access in the first access network and second to realize same target service That nets shares carrying, and S-CSCF needs to inquire about an IP address and the 2nd IP address.

703, an IP address and the 2nd IP address are sent to application server by S-CSCF, so that should The relevant information belonging to same target service is sent out according to an IP address and the 2nd IP address with server Deliver to the Correspondent Node of correspondence；

After S-CSCF inquires an IP address and the 2nd IP address, can by an IP address and 2nd IP address sends to application server so that application server is receiving the first media resource reservation After information, according to an IP address and the 2nd IP address, the first media resource reservation can be completed in information The relevant information belonging to same target service sends to corresponding Correspondent Node.

Such as, in actual applications, it is assumed that communication terminal carries out multi-party video calls, i.e. communication terminal A Multi-party video calls, and this multi-party video is carried out with Correspondent Node B, Correspondent Node C and Correspondent Node D Call needs the 1st, 2,3,4,5,6 totally 6 road videos and the 1st, 2,3,4,5,6 totally 6 road sound Frequently, wherein the 1st tunnel, the 2nd tunnel, the 3rd road video and the 1st tunnel, the 2nd tunnel, the 3rd road audio frequency One access network carries out the first media resource reservation, the 4th tunnel, the 5th tunnel, the 6th road video and the 4th tunnel, 5th tunnel, the 6th road audio frequency carry out the second media resource reservation in the second access network, and in the first access network In the 1st tunnel, the 2nd road video and the 1st tunnel, the 2nd road audio frequency corresponding to Correspondent Node B, second connects The 5th tunnel, the 6th road video and the 5th tunnel, the 6th road audio frequency in networking correspond to Correspondent Node D, the One access network and the second access network remaining 3rd tunnel, the 4th road video and the 3rd tunnel, the 4th road sound respectively Frequency is corresponding to Correspondent Node C, then application server can according to an IP address and the 2nd IP address, By the 1st tunnel in the first access network corresponding in the first media resource reservation completion message, the 2nd road video and 1st tunnel, the media resource reservation completion message of the 2nd road audio frequency send to Correspondent Node B, and corresponding second The 5th tunnel, the 6th road video and the 5th tunnel, the media resource reservation of the 6th road audio frequency in access network complete Message sends to Correspondent Node D, and corresponds respectively to the 3rd road video of the first access network, the 3rd road sound Frequently and corresponding to the 4th road video of the second access network, the 4th road audio frequency send to Correspondent Node C.Permissible Being understood by, in actual applications, the resource that the first access network and the second access network can be reserved is other Classification and capacity, Correspondent Node can be a side, it is also possible to beyond the tripartite of described above in many ways, logical Resource corresponding to letter opposite end can also be other, and the present embodiment is merely illustrative.

It is understood that step 702 in the present embodiment to step 703 can also step 701 it Front execution, as long as before S-CSCF is by the first media resource reservation completion message transmission to Correspondent Node i.e. Can, do not limit.

Step 704 in the present embodiment is identical with the step 602 of embodiment illustrated in fig. 6, the most superfluous State.

In the present embodiment, on the basis of above-described embodiment illustrates, S-CSCF can be by an IP of inquiry Address and the 2nd IP address send to application server, realize application server by the first media resource with this Reserve and information has belonged to the related news transmission of same target service to corresponding Correspondent Node, guarantor Demonstrate,prove the corresponding same target service of same Correspondent Node, make communication terminal send out receiving Correspondent Node simultaneously Can realize after the second media resource reservation completion message sent to same target service in the first access network and Second access network share carrying, thus effectively alleviate network pressure, improve QoS, increase The experience effect of user.

Above the service bearer method in the embodiment of the present invention is described, below the present invention is implemented Communication terminal in example is described, and refers to Fig. 8, and in the embodiment of the present invention, one embodiment of terminal includes:

Media negotiation module 801, for carrying out media according to service request at the first access network and Correspondent Node Consult；

First media resource reservation module 802, for carrying out the according to media negotiation result in the first access network One media resource reservation；

Second media resource reservation module 803, for judging, when communication terminal, the resource that the first access network is reserved When cannot meet target resource, then carrying out the second media resource reservation in the second access network, target resource is Resource needed for the target service that service request is corresponding, the resource that the second access network is reserved is in target resource Not at the surplus resources that the first access network is reserved；

Receiver module 804, for passing through to control in the first access network and the second access network respectively when communication terminal Network element S-CSCF, after Correspondent Node sends the first media resource reservation completion message, receives Correspondent Node and exists After completing media resource reservation, the second media resource sent based on the first media resource reservation completion message Reserved completion message, the first media resource reservation completion message includes holding of Media Stream corresponding to target service Load mode；

Set up module 805, for setting up business based on the second media resource reservation completion message and Correspondent Node Connect；

Carrier module 806, for carrying matchmaker in the first access network and the second access network respectively according to bearing mode Body stream.

In the present embodiment, when target service cannot carry in same access network, can be by the It is pre-that one media resource reservation module 802 and the second media resource reservation module 803 carry out media resource respectively Staying, reach target service and share the purpose of carrying, being prevented effectively from target service cannot be at communication terminal with logical Situation about connecting between letter opposite end, can alleviate network pressure simultaneously, improves the service quality of business, increases Add Consumer's Experience.

Referring to figure and refer to Fig. 9, in the embodiment of the present invention, another embodiment of terminal includes:

Module 901 in the embodiment of the present invention is identical with the module 801 of embodiment illustrated in fig. 8, module 902 Identical with the module 902 of embodiment illustrated in fig. 6, here is omitted.

Judge module 903, for judging whether the resource that the first access network is reserved meets target resource.

Module 904 in the embodiment of the present invention is identical with the module 803 of embodiment illustrated in fig. 8, module 905 Identical with the module 804 of embodiment illustrated in fig. 8, module 906 and the module 805 of embodiment illustrated in fig. 8 Identical, module 907 is identical with the module 806 of embodiment illustrated in fig. 8, and here is omitted.

In the present embodiment, it is judged that module 903 may further include:

First judges submodule 9031, and for being VoLTE when the first access network, the second access network is During VoWIFI, it is judged that whether resource reserved for VoLTE meets target resource；

Or,

Second judges submodule 9032, and for being VoWIFI when the first access network, the second access network is During VoLTE, it is judged that whether resource reserved for VoWIFI meets target resource.

In the present embodiment, first judges that submodule 9031 may further include:

First acquiring unit 90311, for obtaining the reserved money of VoLTE by evolved base station eNodeB The bandwidth threshold in source；

First determines unit 90312, for determining the target bandwidth of target resource；

First judging unit 90313, for judging whether the bandwidth threshold that the first acquiring unit obtains is not less than First determines the target bandwidth that unit determines；

Or,

First detector unit 90314, for sending the first matchmaker when communication terminal to evolved base station eNodeB After body resource reservation request message, detect whether that the first media resource reservation that eNodeB returns unsuccessfully disappears Breath.

Based on above-mentioned first judging unit 90313 and the first detector unit 90314, in the present embodiment, communication Terminal may further include:

First determines module 908, is used for when communication terminal judges the first bandwidth threshold less than target bandwidth, Then determine that resource reserved for VpLTE cannot meet target resource；

Or,

Second determines module 909, for detecting, when communication terminal, the first media resource having eNodeB to return During reserved failed message, it is determined that resource reserved for VoLTE cannot meet target resource.

In the present embodiment, second judges that submodule 9032 may further include:

Second acquisition unit 90321, for obtaining what VoWIFI reserved by wireless network access point AP The bandwidth threshold of resource；

Second determines unit 90322, for determining the target bandwidth of target resource；

Second judging unit 90323, for judging whether the bandwidth threshold that second acquisition unit obtains is not less than Second determines the target bandwidth that unit determines；

Or,

Second detector unit 90324, for sending the second matchmaker when communication terminal to wireless network access point AP After body resource reservation request message, detect whether the second media resource reservation failed message that AP returns.

Based on above-mentioned second judging unit 90323 and the second detector unit 90324, in the present embodiment, communication Terminal may further include:

3rd determines module 910, is used for when communication terminal judges the second bandwidth threshold less than target bandwidth, Then determine that resource reserved for VoWIFI cannot meet target resource；

Or,

4th determines module 911, for detecting, when communication terminal, the second media resource reservation having AP to return During failed message, it is determined that resource reserved for VoWIFI cannot meet target resource.

In the present embodiment, when media negotiation module 901 according to service request and Correspondent Node at VoLTE or After VoWIFI carries out media negotiation, the first media resource reservation module 902 can be according to media negotiation result Carry out the first media resource reservation at VoLTE or VoWIFI, it is possible to VoLTE or VoWIFI without When method meets the target resource needed for target service, the second media resource reservation module 903 is carried out in correspondence VoWIFI or VoLTE the second media resource reservation so that set up module 906 and Correspondent Node in industry After business connects, carrying can be shared what VoLTE and VoWIFI carried out same business respectively, have with this Effect alleviates network pressure, increases the experience effect of user.Additionally, first carry out the first media at VoLTE Resource reservation, needs to switch the situation of VoLTE when can effectively prevent the network quality of VoWIFI the best.

Above the communication terminal in the embodiment of the present invention is described, below in the embodiment of the present invention Control network element S-CSCF be described, refer to Figure 10, in the embodiment of the present invention control network element S-CSCF One embodiment includes:

Receiver module 1001, for completing matchmaker in the first access network and the second access network respectively when communication terminal After body resource reservation, receive the first matchmaker that communication terminal sends respectively in the first access network and the second access network Body resource reservation completion message；

First sending module 1002, for the first media resource reservation completion message is sent to Correspondent Node, So that Correspondent Node is after completing media resource reservation, based on the first media resource reservation completion message to Communication terminal sends the second media resource reservation completion message.

In the present embodiment, receiver module 1001 can receive communication terminal respectively in the first access network and second Access network send the first media resource reservation completion message, the first sending module 1002 can by this first Media resource reservation completion message sends to Correspondent Node, it means that communication terminal is to same target service Carry out sharing carrying in the first access network and the second access network, so can effectively alleviate network pressure, Improve QoS, increase the experience effect of user.

Refer to Figure 11, the embodiment of the present invention control another embodiment of network element S-CSCF and includes:

Module 1101 in the embodiment of the present invention is identical, herein with the module 1001 of embodiment illustrated in fig. 10 Repeat no more.

Enquiry module 1102, the first internet bound with the first access network respectively for inquiring communication terminal Protocol IP address and the 2nd IP address of the second access network binding；

Second sending module 1103, for sending an IP address and the 2nd IP address to application service Device, so that application server will belong to same target service according to an IP address and the 2nd IP address Relevant information send to corresponding Correspondent Node；

Module 1104 in the embodiment of the present invention is identical, herein with the module 1002 of embodiment illustrated in fig. 10 Repeat no more.

In the present embodiment, on the basis of above-described embodiment illustrates, enquiry module 1102 can be by inquiry Oneth IP address and the 2nd IP address are sent to application server by the second sending module 1103, with this Realize application server to complete the first media resource reservation information belongs to the relevant of same target service Message sends to corresponding Correspondent Node, it is ensured that the corresponding same target service of same Correspondent Node, makes simultaneously Obtain communication terminal can realize after receiving the second media resource reservation completion message that Correspondent Node sends Same target service is shared carrying in the first access network and the second access network, thus effectively alleviates network Pressure, improves QoS, increases the experience effect of user.

The service bearer system that the present embodiment provides, by arranging the communication in any of the above-described embodiment eventually End and control network element S-CSCF, thus there is communication terminal and control what network element S-CSCF was had All beneficial effects, do not repeat them here.

Those skilled in the art is it can be understood that arrive, and for convenience and simplicity of description, above-mentioned retouches The specific works process of the system stated, device and unit, is referred to the correspondence in preceding method embodiment Process, does not repeats them here.

In several embodiments provided herein, it should be understood that disclosed system, device and Method, can realize by another way.Such as, device embodiment described above is only shown Meaning property, such as, the division of described unit, be only a kind of logic function and divide, actual can when realizing There to be other dividing mode, the most multiple unit or assembly can in conjunction with or be desirably integrated into another System, or some features can ignore, or do not perform.Another point, shown or discussed each other Coupling direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit Or communication connection, can be electrical, machinery or other form.

The described unit illustrated as separating component can be or may not be physically separate, makees The parts shown for unit can be or may not be physical location, i.e. may be located at a place, Or can also be distributed on multiple NE.Can select according to the actual needs part therein or The whole unit of person realizes the purpose of the present embodiment scheme.

It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, Can also be that unit is individually physically present, it is also possible to two or more unit are integrated in a list In unit.Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ software function list The form of unit realizes.

If described integrated unit realizes and as independent production marketing using the form of SFU software functional unit Or when using, can be stored in a computer read/write memory medium.Based on such understanding, this The part that the most in other words prior art contributed of technical scheme of invention or this technical scheme Completely or partially can embody with the form of software product, this computer software product is stored in one In storage medium, including some instructions with so that computer equipment (can be personal computer, Server, or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only storage (RoM, Read-only Memory), random access memory (RAM, Random Access Memory), magnetic disc or light The various medium that can store program code such as dish.

The above, above example only in order to technical scheme to be described, is not intended to limit； Although being described in detail the present invention with reference to previous embodiment, those of ordinary skill in the art should Work as understanding: the technical scheme described in foregoing embodiments still can be modified by it, or to it Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution Essence depart from various embodiments of the present invention technical scheme spirit and scope.

Claims

1. a service bearer method, it is characterised in that including:

It is pre-that described communication terminal carries out the first media resource according to media negotiation result in described first access network Stay；

If communication terminal determines that the resource that described first access network is reserved cannot meet target resource, then described Communication terminal carries out the second media resource reservation in the second access network, and described target resource is that described business please Seeking the resource needed for the target service of correspondence, the resource that described second access network is reserved is described target resource In not at the surplus resources that described first access network is reserved；

When described communication terminal respectively in described first access network and described second access network by controlling network element S-CSCF is after described Correspondent Node sends the first media resource reservation completion message, and described communication terminal connects Receive described Correspondent Node after completing media resource reservation, complete to disappear based on described first media resource reservation The second media resource reservation completion message that breath sends, described first media resource reservation completion message includes The bearing mode of the Media Stream that described target service is corresponding；

Described communication terminal is set up with described Correspondent Node based on described second media resource reservation completion message Service connection, and hold in described first access network and described second access network respectively according to described bearing mode Carry described Media Stream.

Service bearer method the most according to claim 1, it is characterised in that described first access network For VoLTE, described second access network is VoWIFI；Or,

Described first access network is VoWIFI, and described second access network is VoLTE.

Service bearer method the most according to claim 2, it is characterised in that at described communication terminal Before the second access network carries out the second media resource reservation, exist according to service request at described communication terminal After first access network and Correspondent Node carry out media negotiation, described method also includes:

Described communication terminal judges whether the resource that described first access network is reserved meets target resource.

Service bearer method the most according to claim 3, it is characterised in that when described first accesses Net is VoLTE, and when described second access network is VoWIFI, described communication terminal judges described VoLTE Whether reserved resource meets target resource includes:

Described communication terminal obtains the of resource reserved for described VoLTE by evolved base station eNodeB One bandwidth threshold, and determine the target bandwidth of described target resource, described communication terminal judges described first Whether bandwidth threshold is not less than described target bandwidth；

Or,

When described communication terminal sends the first media resource reservation request message to evolved base station eNodeB After, described communication terminal detects whether that the first media resource reservation that described eNodeB returns unsuccessfully disappears Breath.

Service bearer method the most according to claim 4, it is characterised in that described method also includes:

If described communication terminal judges that described first bandwidth threshold is less than described target bandwidth, the most described communication Terminal determines that resource reserved for described VoLTE cannot meet target resource；

Or,

If the detection of described communication terminal has the first media resource reservation failed message that described eNodeB returns, The most described communication terminal determines that resource reserved for described VoLTE cannot meet target resource.

Service bearer method the most according to claim 3, it is characterised in that when described first accesses Net is VoWIFI, and when described second access network is VoLTE, described communication terminal judges described VoWIFI Whether reserved resource meets target resource includes:

Described communication terminal obtains the of resource reserved for described VoWIFI by wireless network access point AP Two bandwidth threshold, and determine the target bandwidth of described target resource, described communication terminal judges described second Whether bandwidth threshold is not less than described target bandwidth；

Or,

When described communication terminal sends the second media resource reservation request message to wireless network access point AP After, described communication terminal detects whether the second media resource reservation failed message that described AP returns.

Service bearer method the most according to claim 6, it is characterised in that described method also includes:

If described communication terminal judges that described second bandwidth threshold is less than described target bandwidth, the most described communication Terminal determines that resource reserved for described VoWIFI cannot meet target resource；

Or,

If the detection of described communication terminal has the second media resource reservation failed message that described AP returns, then institute State communication terminal and determine that resource reserved for described VoWIFI cannot meet target resource.

8. a service bearer method, it is characterised in that including:

When communication terminal is respectively after the first access network and the second access network complete media resource reservation, control Network element S-CSCF receives described communication terminal and sends out in described first access network and described second access network respectively The the first media resource reservation completion message sent；

Described first media resource reservation completion message is sent to Correspondent Node by described S-CSCF, so that Described Correspondent Node is after completing media resource reservation, based on described first media resource reservation completion message The second media resource reservation completion message is sent to described communication terminal.

Service bearer method the most according to claim 8, it is characterised in that at described S-CSCF Described first media resource reservation completion message being sent before Correspondent Node, described method also includes:

Described S-CSCF inquires about described communication terminal first respectively with described first access network binding and interconnects FidonetFido IP address and the 2nd IP address with described second access network binding；

A described IP address and described 2nd IP address are sent to application server by described S-CSCF, So that described application server will belong to same according to a described IP address and described 2nd IP address The relevant information of target service sends to corresponding Correspondent Node.

10. a communication terminal, it is characterised in that including:

First media resource reservation module, for carrying out in described first access network according to media negotiation result First media resource reservation；

Second media resource reservation module, for judging, when communication terminal, the money that described first access network is reserved When source cannot meet target resource, then carry out the second media resource reservation, described target in the second access network Resource is the resource needed for the target service that described service request is corresponding, the money that described second access network is reserved Source is not at the surplus resources that described first access network is reserved in described target resource；

Receiver module, for accessing in described first access network and described second respectively when described communication terminal Control network element S-CSCF crosses after described Correspondent Node sends the first media resource reservation completion message in Netcom, Receive described Correspondent Node after completing media resource reservation, complete based on described first media resource reservation The second media resource reservation completion message that message sends, described first media resource reservation completion message bag Include the bearing mode of Media Stream corresponding to described target service；

Set up module, for building with described Correspondent Node based on described second media resource reservation completion message Vertical service connection；

Carrier module, for connecing in described first access network and described second respectively according to described bearing mode Enter net loaded described Media Stream.

11. communication terminals according to claim 10, it is characterised in that described first access network is VoLTE, described second access network is VoWIFI；Or,

12. communication terminals according to claim 11, it is characterised in that described communication terminal also wraps Include:

Judge module, for judging whether the resource that described first access network is reserved meets target resource.

13. communication terminals according to claim 12, it is characterised in that described judge module includes:

First judges submodule, and for being VoLTE when described first access network, described second access network is During VoWIFI, it is judged that whether resource reserved for described VoLTE meets target resource；

Or,

Second judges submodule, and for being VoWIFI when described first access network, described second access network is During VoLTE, it is judged that whether resource reserved for described VoWIFI meets target resource.

14. communication terminals according to claim 13, it is characterised in that described first judges submodule Block includes:

First acquiring unit, for obtaining the reserved money of described VoLTE by evolved base station eNodeB The bandwidth threshold in source；

First determines unit, for determining the target bandwidth of described target resource；

First judging unit, for judging the described bandwidth threshold of described first acquiring unit acquisition the most not The described target bandwidth that unit determines is determined less than described first；

Or,

First detector unit, for sending the first media when described communication terminal to evolved base station eNodeB After resource reservation request message, detect whether the first media resource reservation failure that described eNodeB returns Message.

15. communication terminals according to claim 14, it is characterised in that described communication terminal also wraps Include:

First determines module, for judging that described first bandwidth threshold is less than described mesh when described communication terminal During marker tape width, it is determined that resource reserved for described VoLTE cannot meet target resource；

Or,

Second determines module, for detecting, when described communication terminal, the first media having described eNodeB to return During resource reservation failed message, it is determined that the resource that described first access network is reserved cannot meet target resource.

16. communication terminals according to claim 13, it is characterised in that described second judges submodule Block includes:

Second acquisition unit, for obtaining the reserved money of described VoWIFI by wireless network access point AP The bandwidth threshold in source；

Second determines unit, for determining the target bandwidth of described target resource；

Second judging unit, for judging that described bandwidth threshold that described second acquisition unit obtains is the most not The described target bandwidth that unit determines is determined less than described second.

Or,

Second detector unit, for sending the second media when described communication terminal to wireless network access point AP After resource reservation request message, detect whether that the second media resource reservation that described AP returns unsuccessfully disappears Breath.

17. communication terminals according to claim 16, it is characterised in that described communication terminal also wraps Include:

3rd determines module, for judging that described second bandwidth threshold is less than described mesh when described communication terminal During marker tape width, it is determined that resource reserved for described VoWIFI cannot meet target resource；

Or,

4th determines module, for detecting, when described communication terminal, the second media resource having described AP to return During reserved failed message, it is determined that resource reserved for described VoWIFI cannot meet target resource.

18. 1 kinds control network element S-CSCF, it is characterised in that including:

Receiver module, for completing media money in the first access network and the second access network respectively when communication terminal After source is reserved, receives described communication terminal and send in described first access network and described second access network respectively The first media resource reservation completion message；

First sending module, for described first media resource reservation completion message is sent to Correspondent Node, So that described Correspondent Node is after completing media resource reservation, based on described first media resource reservation letter Breath sends the second media resource reservation completion message to described communication terminal.

19. control network element S-CSCF according to claim 18, it is characterised in that described control Network element S-CSCF also includes:

Enquiry module, mutual with the first of described first access network binding respectively for inquiring about described communication terminal Networking protocol IP address and the 2nd IP address of described second access network binding；

Second sending module, for sending a described IP address and described 2nd IP address to applying clothes Business device, so that described application server will ownership according to a described IP address and described 2nd IP address Relevant information in same target service sends to corresponding Correspondent Node.

20. 1 kinds of service bearer systems, it is characterised in that include as arbitrary in claim 10 to 17 Communication terminal described in Xiang and the control network element S-CSCF as described in any one of claim 18 to 19.