CN110324284A - Access the method and communication device of IMS - Google Patents

Abstract

This application provides a kind of methods of accessing Internet protocol multimedia subsystem, IMS, this method comprises: terminal device obtains access strategy, access strategy record has the mapping relations between application identities, type of service mark and network slice mark；First business of the first application is sliced access IMS by first network according to access strategy by terminal device, wherein the first business is one in the business of the first corresponding multiple and different types of service of application.

Description

Access the method and communication device of IMS

Technical field

This application involves internet protocol multi-media sub-system IMS network fields, more particularly, to a kind of access IMS The method and apparatus of network.

Background technique

With the continuous evolution of the communication technology, the real-time communication service of user can be more and more abundant.For example, not only having biography The voice communication of system also has the augmented reality sensitive to time delay and real-time (Augmented Reality, AR), virtually shows Communication services such as real (Virtual Reality, VR).And in the 5th third-generation mobile communication technology (the Fifth-Generation Mobile communications, 5G) specification in, the different real-time communication services of a user depend on the net of differentiation Network slice.That is, the different real-time communication services of a user need to access the same internet by different network slices Protocol multi-media sub-system (Internet Protocol Multimedia Subsystem, IMS).

But industry also lacks a kind of mechanism to support different real-time communication services to connect by different network slices at present Enter the same IMS.

Summary of the invention

The application provides a kind of method and apparatus for accessing IMS network, provides a kind of different real-time communication service processes Different network slices accesses the mechanism of the same IMS.

In a first aspect, the application provides a kind of method for accessing IMS, this method comprises: terminal device obtains access strategy, Access strategy record has the mapping relations between application identities, type of service mark and network slice mark；Terminal device according to First business of the first application is sliced accessing Internet protocol multimedia subsystem, IMS by first network by access strategy, In, the first business is one in the business of the first corresponding multiple and different types of service of application.

User can initiate the business of a variety of different service types, the technical side of the embodiment of the present application by an application Case, the service selection for providing the different service types of an application for user are same by different network slice accesses The mechanism of IMS.For example, one application the business of signaling traffic type and the business of media service type pass through respectively it is different Network slice access IMS.It is understood that the communication service of user will be richer with the continuous evolution of the communication technology Richness also includes to industry such as AR, VR of delay sensitive for example, including not only traditional to the higher voice service of reliability requirement Business etc..And in the prior art, although proposing that different applications can be by different network slice access IMS, one is answered There is no the difference of differentiation, this business that may result in some types of service can be supported for different service types And the business of other types of service is obstructed, and is not able to satisfy the more and more diversified demand of the communication service of user.Therefore, this Shen Please be in embodiment, the different service types individually applied, respectively by different network slice access IMS, and different networks With the characteristic of differentiation between slice, so that a variety of different communication services of user can be supported, to be user Richer business experience is provided.

As an example, type of service includes signaling traffic type and media service type.Due to different service types Business by different network slice access IMS, therefore the separation of signaling traffic and media business may be implemented.

With reference to first aspect, in certain implementations of first aspect, this method further include: terminal device is according to access Second business of the first application is passed through the second network slice access IMS, wherein the second business is that the first application corresponds to by strategy Multiple types of service business in be different from the first business business, wherein the type of service of the second business and the first business Type of service it is different.

With reference to first aspect, in certain implementations of first aspect, the first business is the registration of signaling traffic type First business of the first application is sliced access IMS by first network by business, terminal device, comprising: terminal device obtains eventually The signaling address that end equipment is distributed in first network slice；Terminal device sends registration message to IMS, carries in registration message There are the application identities and signaling address of the first application.

The binding relationship of the signaling address of the application identities and terminal device of the first application of network equipment record of IMS, with Subsequent according to the binding relationship, by the message for needing to be sent to the terminal device (for example, the invitation for initiating called flow Message) by first network slice route to the terminal device.

With reference to first aspect, in certain implementations of first aspect, this method further include: terminal device is according to access Strategy determines that first network is sliced the application identities of corresponding at least one application in addition to the first application；And registration disappears The application mark that first network is sliced corresponding at least one application in addition to the application identities of the first application is also carried in breath Know.

In the present embodiment, it can be carried in registration message and be sliced the application mark of corresponding multiple applications in first network Know, so as to all available apply corresponding with first network slice be registered in IMS, no by once registering It needs each application individually to be registered, signaling overheads can be saved.

With reference to first aspect, in certain implementations of first aspect, access strategy further includes protocol Data Unit PDU Session distribution instruction information, PDU session distribution instruction information are used to indicate the allocation strategy of PDU session, wherein PDU session Allocation strategy includes early distribution or evening distribution, and early distribution indicates to be eventually before the business that terminal device initiates media service type End equipment allocation medium address, evening distribution indicate to distribute when terminal device initiates the business of media service type for terminal device Media address, media service type are one in the first corresponding multiple and different types of service of application.

With reference to first aspect, in certain implementations of first aspect, early point of instruction information instruction is distributed in PDU session In the case where matching, after the first business of the first application is sliced access IMS by first network, this method further include: eventually End equipment determines the corresponding second network slice of the media service type of the first application according to access strategy；Terminal device obtains And save the media address that terminal device distributes in the second network slice.

Terminal device can inquire PDU session distribution instruction information, if PDU session distributes after completing register flow path Indicate that information instruction media address is early distributed, then terminal device is available arrives the media address that 5GC is terminal device distribution.It is logical Such mode is crossed, terminal device has just got media address before initiating media business, subsequent directly to initiate Media business, the related procedure without just going to execution allocation medium address when initiating media business, so as to reduce Time delay.

And for the angle that PDU Session Resources occupy, the evening distribution of media address initiates media business in terminal device When temporarily distribution (or also referred to as dynamically distribute), can mainly reduce the business of media service type to PDU Session Resources Occupancy.

As an optional example, PDU session indicates that the default configuration of information is evening distribution.

With reference to first aspect, in certain implementations of first aspect, this method further include: terminal device passes through first Network is sliced to IMS and sends the first invitation message, and the first invitation message is used to initiate the master of the media service type of the first application It is process, the application identities and media address of the first application are carried in the first invitation message.

In the present embodiment, the calling procedure of the media service type of user can be sliced access IMS by the second network, It is sliced from the business (for example, register flow path) of signaling traffic type by different networks, can support user media service class The service access IMS of type, promotes the business experience of user.

With reference to first aspect, in certain implementations of first aspect, this method further include: terminal device connects from IMS The second invitation message is received, the second invitation message is used to initiate the called flow of the media service type of the first application, and second invites The application identities of the first application are carried in message；Terminal device determines the media service type of the first application according to access strategy Called flow corresponding second network slice；Terminal device distributes instruction information according to PDU session, obtains terminal device the The media address distributed in two networks slice.

In the present embodiment, the called flow of the media service type of user can be sliced access IMS by the second network, It is sliced from the business (for example, register flow path) of signaling traffic type by different networks, can support user media service class The service access IMS of type, promotes the business experience of user.

Second aspect, this application provides a kind of methods for accessing IMS, this method comprises: the network equipment of IMS passes through the One network is sliced the first invitation message that receiving terminal apparatus is sent, and the first invitation message is used to trigger the media sector of the first application The calling procedure of service type carries the application identities of the first application in the first invitation message, wherein media service type is One in the one corresponding multiple and different types of service of application；The network equipment is set according to the application identities of the first application for terminal Back-up matches the media resource of the second network slice intercommunication corresponding with the media service type of the first application.

In conjunction with second aspect, in certain implementations of second aspect, network equipment receiving terminal apparatus passes through second Before the first invitation message that network slice is sent, this method further include: the network equipment is sliced by first network and receives terminal The registration message that equipment is sent carries signaling address that terminal device distributes in first network slice and the in registration message The application identities of one application；The binding that the network equipment records the signaling address of terminal device and the application identities of the first application is closed System.

In conjunction with second aspect, first network is also carried in certain implementations of second aspect, in registration message and is cut The application identities of corresponding at least one application in addition to the application identities of the first application of piece, and, this method further include: net Network equipment records the binding relationship of the signaling address and the application identities of at least one application.

In conjunction with second aspect, in certain implementations of second aspect, this method further include: the network equipment passes through first Network slice receives third invitation message, and third invitation message is used to initiate the Called Flow of the media service type of the first application Journey, the callee in called flow are terminal device, and third invitation message carries the application identities of the first application；Network equipment root According to the application identities of the first application, the media resource of distribution and the slice intercommunication of the second network.

The third aspect, the application provide a kind of communication device, for executing any possibility of first aspect or first aspect Implementation in method.Specifically, which includes any possible reality for executing first aspect or first aspect The unit of method in existing mode.

Fourth aspect, the application provide a kind of communication device, for executing any possibility of second aspect or second aspect Implementation in method.Specifically, which includes any possible reality for executing second aspect or second aspect The unit of method in existing mode.

5th aspect, the application provide a kind of communication device, which includes processor and memory.The storage Device is for storing computer program instructions (in other words, code).The processor is for executing the finger stored in the memory It enables, when executed, so that the communication device executes any possible implementation of first aspect or first aspect In method.

In conjunction with the 5th aspect, in certain implementations of the 5th aspect, described device includes in terminal or the terminal Chip.

6th aspect, the application provide a kind of communication device, the communication device processor and memory.The memory is used In storage computer program instructions (in other words, code).Processor is for executing the instruction stored in memory, when instruction is held When row, so that the communication device executes the method in any possible implementation of second aspect or second aspect.

7th aspect, the application provide a kind of computer readable storage medium, store in the computer readable storage medium There is instruction, when run on a computer, so that computer executes any possible of above-mentioned first aspect or first aspect Method in implementation.

Eighth aspect, the application provide a kind of computer readable storage medium, store in the computer readable storage medium There is instruction, when run on a computer, so that computer executes any possible of above-mentioned first aspect or first aspect Method in implementation.

9th aspect, the application provide a kind of computer program product, and the computer program product includes computer journey Sequence code, when the computer program code is run on computers, so that computer executes above-mentioned first aspect and its On the one hand the method in any possible implementation.

Tenth aspect, the application provide a kind of computer program product, and the computer program product includes computer journey Sequence code, when the computer program code is run on computers, so that computer executes above-mentioned second aspect and its Method in any possible implementation of two aspects.

Tenth on the one hand, and the application provides a kind of chip system, which includes processor, for realizing above-mentioned side Function involved in terminal device in face, for example, for example receiving or handling data and/or information involved in the above method. In a kind of possible design, the chip system further includes memory, and the memory is necessary for saving terminal device Program instruction and data.The chip system, can be made of chip, also may include chip and other discrete devices.

12nd aspect, the application provide a kind of chip system, which includes processor, for realizing above-mentioned side Function involved in terminal device in face, for example, for example receiving or handling data and/or information involved in the above method. In a kind of possible design, the chip system further includes memory, and the memory is necessary for saving terminal device Program instruction and data.The chip system, can be made of chip, also may include chip and other discrete devices.

The technical solution of the embodiment of the present application provides the service selection warp of the different service types of an application for user Cross the mechanism that different network slices accesses the same IMS.For example, the business and media sector of the signaling traffic type of an application The business of service type is respectively by different network slice access IMS.It is understood that constantly drilling with the communication technology Into, the communication service of user will more be enriched, for example, not only include it is traditional to the higher voice service of reliability requirement, It also include to business such as AR, VR of delay sensitive etc..And in the prior art, although it is different to propose that different applications can be passed through Network slice access IMS, but there is no the differences of differentiation for the different service types of an application, this may result in The business of type of service can be supported and the business of other types of service is obstructed, and the communication service for not being able to satisfy user is got over Carry out more diversified demand.Therefore, in the embodiment of the present application, the different service types individually applied pass through different nets respectively Network slice access IMS, and the characteristic with differentiation between different network slices, so that a variety of different communication services of user It can be supported, to provide richer business experience for user.

Detailed description of the invention

Fig. 1 is a kind of application scenarios suitable for the embodiment of the present application.

Fig. 2 is the schematic flow chart of the method 200 of the access IMS of the embodiment of the present application.

Fig. 3 is the exemplary process diagram of the service access IMS of signaling traffic type.

Fig. 4 is an example of the service access IMS of media service type.

Fig. 5 is another example of the service access IMS of media service type.

Fig. 6 is the schematic block diagram of communication device 600 provided by the embodiments of the present application.

Fig. 7 is the schematic block diagram of communication device 700 provided by the embodiments of the present application.

Fig. 8 is the schematic diagram of communication equipment 800 provided by the embodiments of the present application.

Fig. 9 is the schematic diagram of communication equipment 900 provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with attached drawing, the technical solution in the application is described.

The related notion being related in the embodiment of the present application is briefly described first.

Internet protocol multi-media sub-system (Internet protocol multimedia subsystem, IMS) is It is a kind of to provide the network architecture of multimedia service on IP-based network for user.IMS is a kind of completely new multimedia service Form, central characteristics are the nothings using Session initiation Protocol (session initiation protocol, SIP) and access Guan Xing.IMS carries out Call- Control1 end to end using Session Initiation Protocol, and the IMS based on SIP by reusing internet to greatest extent Technology and agreement inherit the distinctive network technology of cell mobile communication systems and sufficiently use for reference flexible exchanging network technology, can The quality of service (quality of service, QoS) of carrier class is enough provided, carries out effective and flexible charging to business, and It is provided with the great ability of fusion disparate networks integrated service.And IMS uses for reference flexible exchanging network technology simultaneously, using based on gateway Interworking Scheme, including signaling gateway (signaling gateway, SG), Media Gateway Control Function (media gateway Control function, MGCF), the network elements such as Media Gateway Controller (media gateway controller, MGC), and And Internet Engineering Task group (Internet engineer task force, IEIF) and the world are also used in MGCF and MGC Telecommunication union's Telecommunication Sector (international telecommunication union telecommunication Standardization sector, ITU-T) the H.248 agreement formulated jointly, this makes the terminal device of IMS can be shifting Dynamic terminal, is also possible to fixed telephone terminal, multimedia terminal, personal computer (personal computer, PC) machine, connects Enter mode and be also not necessarily limited to cellular radio frequency interface, can be wireless (wireless local area networks, WLAN) or Person be wired local area network (local area networks, LAN), Digital Subscriber Line (digital subscriber line, The technologies such as DSL).

In the embodiment of the present application, terminal device is referred to as user equipment (user equipment, UE), access eventually It is end, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication equipment, user agent or user apparatus.Terminal device can be mobile terminal, be also possible to fixed telephone terminal, more matchmakers Body terminal, personal computer (personal computer, PC) machine, the website (station, ST) in WLAN, can be honeycomb Phone, wireless phone, SIP phone, wireless local loop (wireless local loop, WLL) are stood, personal digital assistant (personal digital assistant, PDA) equipment, calculates equipment or company at the handheld device with wireless communication function It is connected to other processing equipments, mobile unit, wearable device and the next generation communication system of radio modem, for example, Terminal device in 5G network or the public land mobile network of the following evolution (public land mobile network, PLMN) the terminal device etc. in network.

It should be noted that the number " first " occurred in the embodiment of the present application, " second " etc. are just to distinguishing difference Description object, such as in order to distinguish different network slices, message etc., the technical solution of the embodiment of the present application should not be constituted It limits.

The method of the access IMS of the embodiment of the present application is described in detail below.

Referring to a kind of application scenarios that Fig. 1, Fig. 1 are suitable for the embodiment of the present application.It is wrapped in application scenarios as shown in Figure 1 Including IMS 101, terminal device 102 and terminal device 103.Wherein, terminal device 102 and terminal device 103 are individually applied The business of different service types can be by different network slice access IMS.For example, the business for belonging to type of service A can be with IMS 101 is accessed by network slice #1.The business for belonging to type of service B can be by network slice #2 access IMS 101.Belong to In the business of type of service C IMS 101 can be accessed by network slice #3.

Fig. 2 is the schematic flow chart of the method 200 of the access IMS of the embodiment of the present application.

210, terminal device obtains access strategy.

Specifically, access strategy can be terminal device be successfully registered to 5G core net (5G Core Network, After 5GC), terminal device is handed down to by the Packet Control Function (packet control function, PCF) of 5GC.

Wherein, access strategy record has the mapping relations between application identities, type of service mark and network slice mark. Also, the combination of an application identities and type of service mark can correspond to a network slice mark.

It is understood that an application identities are for identifying an application, a type of service mark is for identifying one A type of service, a network slice mark is for identifying a network slice.

In 5G, each network slice has a unique single network slice selection auxiliary information (Single Network Slice Selection Assistance Information, S-NSSAI) mark.Therefore, the embodiment of the present application In described network slice mark can be S-NSSAI mark.

As an example, in the embodiment of the present application, application identities may include two classes: IMS communication business identification (IMS communication service identifiers, ICS) and IMS application identities (Identification of IMS applications,IARI)。

In addition, type of service may include a variety of zoned formats in the embodiment of the present application.For example, single type of service can To be signaling traffic type or media service type.In other words, the business of terminal device can belong to signaling traffic type Business or media service type business.

Optionally, medium type can be further subdivided into the multiple business type such as video, audio, picture and text.Or Person, media service type can also be divided into ordinary voice communications type of service and VR type of traffic etc..

Access strategy in the embodiment of the present application can be to existing user equipment routing strategy (user Equipment route selection policy, URSP) it is extended to obtain.It is easily understood that the URSP of extension is Finger is increased on the basis of existing URSP between above-described application identities, type of service mark and network slice mark Mapping relations.

220, the first business of the first application is sliced access IMS by first network according to access strategy by terminal device.

First application can be any one application loaded on terminal device.Wherein, any one, which is applied, may include A variety of different types of service that terminal device is capable of handling, each type of service may include multiple and different business again.Cause This, any one business (for example, first business) of the first application can belong to some type of service of the first application.

It has already mentioned above, is had recorded in access strategy between application identities, type of service mark and network slice mark Mapping relations.Therefore, terminal device by inquiry access strategy, so that it may determine the first application application identities, first The corresponding network slice of the type of service of business.

Succinct in order to what is described, the application identities of the first application are referred to as the first application identities by us below, by first Type of service belonging to business is referred to as the first type of service, and will be selected according to the first application identities and the first type of service Network slice is referred to as first network slice.

Select the first application the first business it is corresponding first net slice after, terminal device by first application first Business is sliced access IMS by first network.

The method of the access IMS of the embodiment of the present application provides a kind of different communication using the different net of process for user Network slice accesses the mechanism of the same IMS,

The technical solution of the embodiment of the present application provides the service selection warp of the different service types of an application for user Cross the mechanism that different network slices accesses the same IMS.It is understood that with the continuous evolution of the communication technology, user Communication service will more enrich, for example, not only include it is traditional to the higher voice service of reliability requirement, also include pair Business such as AR, VR of delay sensitive etc..And in the prior art, although proposing that different applications can be sliced by different networks IMS is accessed, but there is no the differences of differentiation for the different service types of an application, this may result in some types of service Business can be supported and the business of other types of service is obstructed, the communication service for not being able to satisfy user is more and more various The demand of change.Therefore, in the embodiment of the present application, the different service types individually applied connect by different network slices respectively Enter IMS, and there is the characteristic of differentiation between different network slices, so that a variety of different communication services of user can obtain To support, to provide richer business experience for user.

Optionally, in the embodiment of the present application, type of service can be divided into signaling traffic type and media sector by we Service type.In this way, the technical solution of the application passes through the business of the business for supporting signaling traffic type and media service type Different network slices access the same IMS, so that the business of the business of signaling traffic type and media service type separates.

The process of the business for belonging to signaling traffic type and the service access IMS for belonging to media service type is distinguished below It is illustrated.

1, the business of signaling traffic type

Those skilled in the art are known, and signaling is other than transmitting subscriber information, to make the whole network in wireless communication system It works orderlyly, for guaranteeing to control signal required for normal communication.Signaling traffic type can specifically include very much Business, for example, registration, subscription and notice etc..

Below with the registration business of terminal device as an example, to the process of the service access IMS of signaling traffic type into Row illustrates.

It is the exemplary process diagram of the registration service access IMS of signaling traffic type referring to Fig. 3, Fig. 3.

301, terminal device obtains the URSP of extension.

Terminal device is successfully registered to after 5GC, and the URSP of extension is synchronized to terminal device by the network element PCF in 5GC.It is right It may refer to the prior art in the process of terminal device access 5GC and the process of the synchronous URSP of network element PCF, do not make here in detail It states.

302, terminal device inquires URSP strategy according to the first application identities and signaling traffic type, and determination is registered to IMS Signaling address.

As described above, there is between application identities, type of service mark and network slice mark record in the URSP of extension Mapping relations.According to the combination that the first application identities and the first type of service identify, a network can be uniquely determined and cut Piece.

Therefore, after the first application starting on terminal device, if discovery is not registered on IMS, terminal device is being initiated Before IMS registration, according to the URSP of the application identities of the first application and the extension of signaling traffic type queries, obtains corresponding network and cut Piece (hereinafter referred to as first network slice).Further, if the also unallocated terminal of 5GC corresponding agreement in first network slice The address data cell session (protocol data unit session, PDU Session), then terminal device passes through with 5GC PDU Session (that is, PDU session) address allocation flow (such as register flow path) completes terminal device in first network slice The distribution of signaling address.If 5GC has been that terminal device is assigned with its corresponding PDU Session in first network slice Location, then terminal device uses the allocated address PDU Session as signaling address.

It should be noted that the business in 5G is carried on PDU Session, any one business of terminal device Foundation, require 5GC distribute a corresponding PDU Session come complete address distribution.In the embodiment of the present application, due to Signaling traffic and media business separation, therefore, in register flow path, terminal device gets the terminal device of 5GC distribution the Signaling address in one network slice.

303, terminal device is sliced to IMS by first network and sends registration message, and the network equipment of IMS receives terminal and sets The standby registration message sent by first network slice.

Wherein, the signaling address of the first application identities and terminal device is carried in registration message.

304, the binding relationship of the signaling address of the network equipment record terminal device of IMS and the first application identities.

The network equipment of IMS has recorded the signaling address of terminal device and the binding relationship of the first application identities, also just anticipates Taste first apply and succeed in registration on IMS.

Optionally, the first net can also be carried on other than carrying the application identities of the first application in registration message Network is sliced the application identities of corresponding more other applications.

Specifically, in step 302, terminal device expands according to the application identities and signaling traffic type queries of the first application After obtaining corresponding first network slice, it is corresponding all available can further to get first network slice by the URSP of exhibition Application application identities.In step 304, first network can be sliced corresponding all available application marks by terminal device Know all to carry and is sent to IMS in registration message.In this way, the network equipment of IMS just records the signaling address and of terminal device One network is sliced the binding relationship of corresponding all available application identities.In this way, terminal device just passes through a registration process, All available applications corresponding with first network slice are all registered on IMS.If the subsequent starting of terminal device Some application in these applications in other words, does not need one application of every starting and just infuses there is no need to individually be registered again Volume is primary, thus can save signaling overheads and simplify register flow path.

Optionally, in the embodiment of the present application, the URSP of extension can also include PDU session distribution instruction information.PDU meeting Words distribution instruction information is used to indicate the allocation strategy of PDU session, wherein the allocation strategy of PDU session includes early distribution or evening Distribution.Early distribution indicates to be terminal device allocation medium address before terminal device initiates media business, and evening distribution indicates Terminal device initiates when media business to be terminal device allocation medium address.The default configuration of PDU session distribution instruction information can To be set as late distribution.

305, terminal device inquiry PDU session distribution instruction information distributes what instruction information instruction early distributed in PDU session In the case of, it obtains and saves media address of the terminal device in first network slice.

Terminal device can inquire PDU session distribution instruction information, if PDU session distributes after completing register flow path Indicate the early distribution of information instruction, then terminal device is available arrives the media address that 5GC is terminal device distribution.(referring in Fig. 5 Step 305, wherein the dotted line frame expression of step 305 is in the case where PDU session distributes instruction information instruction and early distributes, terminal Equipment can obtain media address after completing register flow path, initiate Shi Cailin without the business in media service type When distribute)

It is understood that in this way, terminal device has just got matchmaker before initiating media business Body address, it is subsequent directly to initiate media business, and no longer need to execute the related procedure of allocation medium address, so as to To reduce time delay.

And the business that the evening distribution of media address can mainly reduce media service type accounts for PDU Session Resources With.

2, the business of media service type.

It include that multiple business is identical with signaling traffic type, media service type also includes multiple business.And caller (Mobile Original, MO) and called (Mobile Terminated, MT) is the most common business in media service type. Below with MO process and MT process as an example, being illustrated to the process of the service access IMS of media service type.

(1) MO call flow

MO process refers to the process of that a terminal device actively initiates calling.

Referring to fig. 4, Fig. 4 is an example of the service access IMS of media service type.

401, it when terminal device initiates MO call flow, is inquired according to the application identities of the first application, media service type The URSP of extension, the network slice of selection access IMS, and obtain the media address of terminal device.

It is distinguished in order to which the first network of the registration service selection with signaling traffic type above is sliced, below by terminal device It initiates the network selected when the MO call flow of media service type slice and is referred to as the second network slice.

In step 401, the application identities (that is, first application identities) and media business that terminal device is applied according to first Type, the URSP of query expansion obtain the second network slice.Again by being interacted with 5GC, by PDU session allocation flow, Distribution obtains media address of the terminal device in the second network slice.

It should be understood that the case where step 401 is actually PDU session distribution instruction information instruction media evening distribution.In other words It says, in the case where PDU session distributes instruction information instruction media address evening distribution, the media address of terminal device is to initiate Terminal device is just distributed to when media business.

As indicated above, if PDU session distribution instruction information instruction media address is early distributed, terminal device is in success It is registered to after IMS, gets the media address of terminal device in advance.Therefore, terminal device is initiating MO call flow When, the process that the media address temporarily distributed is obtained described in step 401 can be saved.But step can be directly acquired The media address saved in 305, so that it may initiate the business of media service type.

402, terminal device is sliced to IMS by first network and sends invitation message #1.The network equipment of IMS passes through first Network is sliced the invitation message #1 that receiving terminal apparatus is sent.

Wherein, the first application identities and Session Description Protocol (Session Description are carried in invitation message #1 Protocol, SDP) exchange (SDP offer).It include the matchmaker that terminal device distributes in the second network slice in SDP offer Body address and port numbers.

It should be understood that IMS can support a plurality of types of media business including voice and video, and different access sides The terminal of formula supports different types of media code encoding/decoding mode.In the case where two side's sessions, session parameter is usually by session Founder determines, participate in session it is another can do be also only be added according to these session parameters session (or It can choose and be added without).And under normal conditions, due to the difference of terminal unit ability, either party cannot assume that other side one Surely it supports certain session parameter, is each so needing to negotiate to reach an agreement with regard to session parameter by both sides before session establishment The code encoding/decoding mode that kind media select a both sides all to support.And SDP is a kind of conversation description format, it can accurately describe meeting The parameter of words.But since SDP lacks both sides, how the conversation description that basis respectively provides forms final consistent conversation description Semantic and operational details.

Industry proposes a kind of proposal/answer model as a result,.A side (proponent) for session generates a SDP message and comes Its desired session is described, this constitutes a proposal (offer).It mainly include that proponent thinks session to be used in offer Parameter and proponent are used to receive IP address and the port of media.Proposal is transferred to another party, and another party mentions according to what is received Itself the ability of negotiating peace generates a SDP message to describe its receptible Media Stream of institute, this is known as response answer.Answer In include respondent it is expected for receiving IP address and the port of media to complete media negotiation.

It is, therefore, to be understood that in MO business, promoter of the terminal device as session, in step 402, invitation message #1 The middle media address and port numbers for carrying oneself, so that the network equipment of IMS can pass through the matchmaker in subsequent media business Body address and port, by the forwarding media stream of the callee in MO business to the terminal device.The middle media for carrying oneself Location and port numbers are interacted for subsequent and IMS network equipment,

It it should be understood that the transmission of invitation message #1 belongs to the business of signaling traffic type, therefore is sliced by first network It is sent.

403, for the network equipment of IMS according to the first application identities in invitation message #1, selection and the second network slice are mutual Logical media resource.

Media resource mentioned here, main includes the IP address for the gateway that the second network can be supported to be sliced and end Slogan.

The network equipment is according to the first application identities, the media resource of distribution and the slice intercommunication of the second network, guarantee and terminal Intercommunication may be implemented in the medium surface of equipment.

Wherein, the network equipment and terminal device realize the intercommunication of medium surface, refer to what the network equipment and terminal device were mutually sent out Data packet can be received mutually.

404, the network equipment of IMS triggers calling procedure processing according to the first application identities.

405, the network equipment of IMS is sliced to terminal device by first network and sends response message.

Here, the network equipment of IMS is that response message is routed to terminal device according to the signaling address of terminal device, And it is sliced by first network and response message is sent to terminal device.

Wherein, SDP answer is carried in response message, includes accessing gateway equipment (Access in SDP answer Gateway, GW, AWG) the Internet protocol address (Internet Protocol, IP) and port numbers.

Determined according to i.e. session initiation protocol (Session Initiation Protocol, SIP) response message status code Justice, the response message in step 405 can be 18x message.

It is understood that the network equipment that step 402-405 is actually terminal device and IMS completes media association Quotient.It is subsequent to can be carried out MO business.

(2) MT call flow

MT process refers to the called process of terminal device.

It is another example of the service access IMS of media service type referring to Fig. 5, Fig. 5.

501, the network equipment of IMS is sliced by first network receives invitation message #2, and invitation message #2 is for initiating matchmaker The MT business of body type of service carries the publicly-owned mark of the first application identities and terminal device in invitation message #2.

It should be understood that the callee in MT business is terminal device shown in Fig. 5.Calling party in called flow is in Fig. 5 In be not shown.

502, the network equipment of IMS obtains the signaling address of terminal device according to the first application identities.

It should be noted that can be carried in the invitation message #2 that the network equipment of IMS receives called whole in step 502 The publicly-owned mark of end equipment (have namely Fig. 5 shown in terminal device), the network equipment is according to the publicly-owned mark energy of terminal device Enough know which terminal called equipment is.The binding of signaling address and application identities further according to the terminal device of record Relationship can determine the corresponding signaling address of the first application identities (private address of terminal device), to get called The signaling address of side's (i.e. terminal device shown in Fig. 5), in order to which invitation message #2 forwarding (or perhaps routing) extremely should Terminal device.

In ims, the mark of a terminal device is divided into privately owned mark and two kinds of publicly-owned mark.Wherein, privately owned mark by The operator of home network is allocated, and has global uniqueness.It accesses registration, authentication, the certification of IMS commonly used in user With charging etc..And publicly-owned mark is for privately owned mark, is the identity used when communicating with other users, leads to It is usually used in addressing and the routing etc. of calling.For example, phone number is exactly a publicly-owned mark, can be perceived by the user, and it is privately owned Mark is not perceived by the user.User A makes a phone call to user B, and the phone number shown on the mobile phone of user B is (that is, user The phone number of A) it is exactly a publicly-owned mark, and base station needs to know user A's when user A is given in the calling of user B The calling of user B could be given to user A by private address.

Therefore, in step 502, the publicly-owned mark of terminal device is carried in invitation message #2, and the network equipment of IMS It is it is known that this publicly-owned mark is for identifying which terminal device (for ease of description, it is assumed that this publicly-owned mark For identifying terminal device A).And on the network equipment of IMS record have access IMS each terminal device signaling address with The binding relationship of some application identities, so that the network equipment of IMS is recorded according to the inquiry of the first application identities for terminal device A Binding relationship, so that it may determine the private address namely signaling address mentioned here of terminal device A.

503, the network equipment of IMS is according to the first application identities, the media resource of selection and the slice intercommunication of the second network.

Similar with MO business, the network equipment of IMS needs to distribute the media resource with the slice intercommunication of the second network, to protect The intercommunication of the medium surface of card and terminal device.

504, the network equipment of IMS is sliced to terminal device by first network and is sent out according to the signaling address of terminal device Send invitation message #3.Terminal device is sliced the invitation message #3 for receiving network equipment forwarding by first network.

Wherein, it is carried in invitation message #3 in the first application identities and SDP offer, SDP offer and carries access The IP address and port numbers of gateway A GW.

505, terminal device is according to the first application identities and media service type carried in invitation message B, query expansion URSP, obtain corresponding second network slice, and get the media address that terminal device distributes in the second network slice.

The process that terminal device obtains media address is identical as above description, and which is not described herein again.

506, terminal device is sliced to the network equipment of IMS by first network and sends response message.

The media address of SDP answer carried terminal equipment in response message is (that is, UE media shown in Fig. 5 Location may also be referred to as UE IP address) and port numbers.Similarly, response message can be a certain kind in 18x message.

The method of the access IMS of the embodiment of the present application is explained in detail above.The technical solution of the embodiment of the present application, Support the business for the different service types (for example, signaling traffic type and media service type) individually applied respectively by not having to Network slice enter the same IMS.

The communication device in the embodiment of the present application is illustrated below in conjunction with Fig. 6-Fig. 9.

Fig. 6 is the schematic block diagram of communication device 600 provided by the embodiments of the present application.Referring to Fig. 6, communication device 600 is wrapped It includes:

Acquiring unit 610, for obtaining access strategy, access strategy record has application identities, type of service mark and net Mapping relations between network slice mark；

Processing unit 620, for the first business of the first application being sliced by first network and is accessed according to access strategy Internet protocol multi-media sub-system IMS, wherein the first business is the business of the first corresponding multiple and different types of service of application In one.

Each unit in communication device 600 provided by the embodiments of the present application and above-mentioned other operations or function respectively in order to Realize the corresponding process executed in the method 200 of access IMS provided by the embodiments of the present application by terminal device.For sake of simplicity, this Place repeats no more.

It should be understood that the transmission unit for sending different information can be same when communication device 600 includes transmission unit It is a, or can also be different (for example, the first transmission unit and second transmission unit).Receiving unit is also similar with processing unit 's.

Optionally, communication device 600 can be chip.

Fig. 7 is the schematic block diagram of communication device 700 provided by the embodiments of the present application.Referring to Fig. 7, communication device 700 is wrapped It includes:

Receiving unit 710, for being sliced the first invitation message that receiving terminal apparatus is sent by the second network, first is invited Please message be used to trigger the calling procedure of the media service type that first applies, carry the first application in the first invitation message Application identities, wherein media service type is one in the business of the first corresponding multiple and different types of service of application；

Processing unit 720, it is mutual for terminal device distribution and the second network slice for the application identities according to the first application Logical media resource.

Each unit in communication device 700 provided by the embodiments of the present application and above-mentioned other operations or function respectively in order to Realize the corresponding process executed in the method 200 of access IMS provided by the embodiments of the present application by the network equipment of IMS.For letter Clean, details are not described herein again.

Optionally, communication device 700 can be chip.

Fig. 8 is the schematic diagram of terminal device 800 provided by the embodiments of the present application.As shown in figure 8, terminal device 800 include: one or more processors 801, one or more memories 802, one or more transceiver (each transceiver packets Include transmitter 803 and receiver 804).Transmitter 803 or receiver 804 are connect with one or more antennas 805, and pass through day Line receiving and transmitting signal.Computer program instructions (in other words, code) is stored in memory 802.The execution of processor 801 is stored in storage Computer program instructions in device 802, to realize in the method 200 provided by the embodiments of the present application for accessing IMS by terminal device The corresponding process and/or operation executed.For sake of simplicity, details are not described herein again.

Communication device 600 shown in above-mentioned Fig. 6 can be realized by terminal device 800 shown in fig. 8.For example, Acquiring unit 610 shown in Fig. 6 can be realized that processing unit 620 can be realized by processor 801 by transceiver.

Fig. 9 is the schematic diagram of the network equipment 900 provided by the embodiments of the present application.As shown in figure 9, the network equipment 900 include: one or more processors 901, one or more memories 902, one or more transceiver (each transceiver packets Include transmitter 903 and receiver 904).Transmitter 903 or receiver 904 are connect with one or more antennas 905, and pass through day Line receiving and transmitting signal.Computer program instructions (in other words, code) is stored in memory 902.The execution of processor 901 is stored in storage Computer program instructions in device 902, by the net of IMS in the method 200 to realize uplink communication provided by the embodiments of the present application The corresponding process and/or operation that network equipment executes.For sake of simplicity, details are not described herein again.

Above-mentioned communication device shown in fig. 7 700 can be realized by terminal device 900 shown in Fig. 9.For example, Receiving unit 710 shown in fig. 7 can be realized by transceiver (specifically can be receiver 904).Processing unit 720 can be by Processor 901 is realized.

In above embodiments, processor can be central processing unit (Central Processing Unit, CPU), micro- place Manage device, application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC) or one or Multiple integrated circuits etc. for being used to control the execution of application scheme program.For example, processor may include digital signal processor Equipment, micro processor device, analog-digital converter, digital analog converter etc..Processor can be according to the respective function of these equipment And the control of mobile device and the function of signal processing are distributed among these devices.In addition, processor may include operation one The function of a or multiple software programs, software program can store in memory.

Memory can be read-only memory (Read-Only Memory, ROM) or can store static information and instruction Other kinds of static storage device, random access memory (Random Access Memory, RAM) or can store information With the other kinds of dynamic memory of instruction.It is also possible to Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read- Only Memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this. Memory, which can be, to be individually present, alternatively, can also integrate with processor.

Transceiver may include for example, infrared transceiver, using transceiver, radio universal serial bus (Universal Serial Bus, USB) transceiver, Bluetooth transceiving etc..Although not showing that, phase is can be used in terminal device and the network equipment The communication technology answered sends information (or signal) by transmitter, and/or information (signal) is received by receiver.

In addition, the application provides a kind of computer program product, the computer program product includes computer program generation Code, when the computer program code is run on computers, so that computer executed in the application embodiment of the method by end The corresponding process and/or operation that end equipment executes.

In addition, the application provides a kind of computer program product, the computer program product includes computer program generation Code, when the computer program code is run on computers, so that computer executes in the application embodiment of the method by net The corresponding process and/or operation that network equipment executes.

In addition, the application provides a kind of chip system, which includes processor, for realizing the embodiment of the present application Function involved in middle terminal device, for example, signal and/or information involved in reception or processing method embodiment.One In kind possible design, which further includes memory, memory for save the necessary program instruction of terminal device and Data.The chip system can be made of chip, also may include chip and other discrete devices.

In addition, the application provides a kind of chip system, which includes processor, for realizing the embodiment of the present application Function involved in the middle network equipment, for example, signal and/or information involved in reception or processing method embodiment.One In kind possible design, which further includes memory, memory for save the necessary program instruction of terminal device and Data.The chip system can be made of chip, also may include chip and other discrete devices.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (Read Only Memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (Random Access Memory, RAM), magnetic or disk.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims (22)

1. a kind of method of accessing Internet protocol multimedia subsystem, IMS characterized by comprising

Terminal device obtains access strategy, and the access strategy record has application identities, type of service mark and network slice mark Mapping relations between knowledge；

The terminal device is sliced access interconnection by first network according to the access strategy, by the first business of the first application FidonetFido multimedia subsystem, IMS, wherein first business is the corresponding multiple and different types of service of first application One in business.

2. the method according to claim 1, wherein first business is the registration industry of signaling traffic type Business, the first business that the terminal device is applied described first pass through first network slice access IMS, comprising:

The terminal device obtains the signaling address that the terminal device distributes in first network slice；

The terminal device sends registration message to the IMS, and the application of first application is carried in the registration message Mark and the signaling address.

3. according to the method described in claim 2, it is characterized in that, the method also includes:

The terminal device determines that the first network slice is corresponding in addition to first application according to the access strategy At least one application application identities；

And the first network is also carried in the registration message and is sliced the corresponding application identities except first application Except at least one application application identities.

4. according to the method in any one of claims 1 to 3, which is characterized in that the access strategy further includes agreement number Instruction information is distributed according to unit PDU session, the PDU session distribution instruction information is used to indicate the allocation strategy of PDU session, In, the allocation strategy of PDU session includes early distribution or evening distribution, and the early distribution indicates to initiate media business class in terminal device It is terminal device allocation medium address before the business of type, the evening distribution indicates to initiate media service type in terminal device It is terminal device allocation medium address when business, the media service type is described first using corresponding multiple and different business One in type.

5. according to the method described in claim 4, it is characterized in that, distributing instruction information instruction early distribution in the PDU session In the case where, after the first business applied described first is sliced access IMS by first network, the method is also wrapped It includes:

The terminal device determines the media service type corresponding second of first application according to the access strategy Network slice；

The terminal device obtains and saves the media address that the terminal device distributes in second network slice.

6. according to the method described in claim 5, it is characterized in that, the method also includes:

The terminal device is sliced to the IMS by the first network and sends the first invitation message, and first invitation disappears The calling procedure of the media service type for triggering first application is ceased, carries described first in first invitation message The application identities of application and the media address.

7. the method according to any one of claim 4 to 6, which is characterized in that the method also includes:

The terminal device receives the second invitation message from the IMS, and second invitation message is answered for triggering described first The called flow of media service type carries the application identities of first application in second invitation message；

The terminal device determines the called flow of the media service type of first application according to the access strategy The corresponding second network slice；

The terminal device distributes instruction information according to the PDU session, obtains the terminal device and cuts in second network The media address distributed in piece.

8. a kind of method of accessing Internet protocol multimedia subsystem, IMS characterized by comprising

The network equipment of IMS is sliced the first invitation message that receiving terminal apparatus is sent by first network, and described first invites Message is used to trigger the calling procedure of the media service type of the first application, carries described first in first invitation message The application identities of application, wherein the media service type is in the corresponding multiple and different types of service of first application One；

The network equipment is applied for terminal device distribution with described first according to the application identities of first application The media resource of the corresponding second network slice intercommunication of media service type.

9. according to the method described in claim 8, it is characterized in that, the network equipment, which receives the terminal device, passes through second Before the first invitation message that network slice is sent, the method also includes:

The network equipment receives the registration message that the terminal device is sent by first network slice, and the registration disappears The application of the signaling address that the terminal device distributes in first network slice and first application is carried in breath Mark；

The network equipment records the binding relationship of the application identities of the signaling address and first application.

10. according to the method described in claim 9, it is characterized in that, also carrying the first network in the registration message The application identities of corresponding at least one application in addition to the application identities of first application are sliced,

And the method also includes:

The network equipment records the binding relationship of the application identities of the signaling address and at least one application.

11. the method according to any one of claim 8 to 10, which is characterized in that the method also includes:

The network equipment is sliced by the first network receives third invitation message, and the third invitation message is for triggering The called flow of the media service type of first application, the callee in the called flow are the terminal device, institute State the application identities that third invitation message carries first application；

Application identities of the network equipment according to first application, the media money of distribution and second network slice intercommunication Source.

12. a kind of communication device characterized by comprising

Acquiring unit, for obtaining access strategy, the access strategy record has application identities, type of service mark and network to cut Mapping relations between piece mark；

Processing unit, for according to the access strategy, the first business of the first application to be accessed mutually by first network slice Networking protocol multimedia subsystem, IMS, wherein first business is described first using corresponding multiple and different types of service Business in one.

13. communication device according to claim 12, which is characterized in that first business is the note of signaling traffic type Volume business, and,

The acquiring unit is specifically used for obtaining the signaling address that the communication device distributes in first network slice；

And the communication device further include:

First transmission unit carries first application for sending registration message to the IMS in the registration message Application identities and the signaling address.

14. communication device according to claim 13, which is characterized in that the processing unit is also used to:

According to the access strategy, determine that the first network is sliced corresponding at least one in addition to first network slice The application identities of a application；

And the first network is also carried in the registration message and is sliced the corresponding application identities except first application Except at least one application application identities.

15. communication device described in any one of 2 to 14 according to claim 1, which is characterized in that the access strategy of stating also wraps Protocol Data Unit PDU session distribution instruction information is included, the PDU session distribution instruction information is used to indicate point of PDU session With strategy, wherein the allocation strategy of PDU session includes early distribution or evening distribution, and the early distribution is indicated in the communication device The business for initiating media service type is before communication device allocation medium address, and the evening distribution is indicated in the communication It is the communication device allocation medium address when business of device initiation media service type, the media service type is described One in the first corresponding multiple and different types of service of application.

16. communication device according to claim 15, which is characterized in that distribute instruction information instruction in the PDU session In the case where early distribution, the processing unit is also used to cut by the first business that described first applies by the first network Piece accesses after the IMS, determines the corresponding second network slice of the media service type of first application；

The acquiring unit is also used to obtain the communication device of the processing unit acquisition in second network slice The media address of distribution；

And the communication device further include:

Storage unit, the media address for obtaining to the acquiring unit save.

17. communication device according to claim 16, which is characterized in that the communication device further include:

Second transmission unit sends the first invitation message for being sliced by the first network to the IMS, and described first invites Please message be used to trigger first application media service type calling procedure, carry in first invitation message State the application identities and the media address of the first application.

18. communication device described in any one of 5 to 17 according to claim 1, which is characterized in that the communication device also wraps It includes:

Receiving unit, for receiving the second invitation message from the IMS, second invitation message is answered for triggering described first The called flow of media service type carries the application identities of first application in second invitation message；

The processing unit is also used to determine the media service type of first application according to the access strategy The corresponding second network slice of called flow；

And the acquiring unit is also used to distribute instruction information according to the PDU session, obtains the communication device described The media address distributed in second network slice.

19. a kind of communication device characterized by comprising

Receiving unit, for being sliced the first invitation message that receiving terminal apparatus is sent by first network, described first is invited Message is used to trigger the calling procedure of the media service type of the first application, carries described first in first invitation message The application identities of application, wherein the media service type is in the corresponding multiple and different types of service of first application One；

Processing unit, for the application identities according to first application, for terminal device distribution and first application Media service type corresponding second network slice intercommunication media resource.

20. communication device according to claim 19, which is characterized in that the receiving unit is also used to receiving described the Before one invitation message, the registration message that the terminal device is sent is received by first network slice, the registration disappears The application of the signaling address that the terminal device distributes in first network slice and first application is carried in breath Mark；

The processing unit is also used to record the binding relationship of the application identities of the signaling address and first application.

21. communication device according to claim 20, which is characterized in that also carry described first in the registration message Network is sliced the application identities of corresponding at least one application in addition to the application identities of first application；

And the processing unit is also used to record the binding of the application identities of the signaling address and at least one application Relationship.

22. the communication device according to any one of right 19 to 21, which is characterized in that the receiving unit is also used to:

It is sliced by the first network and receives third invitation message, the third invitation message is for triggering first application Media service type called flow, the callee in the called flow is the terminal device, and the third invitation disappears The application identities of first application are carried in breath；

The processing unit, is also used to the application identities according to first application, and distribution is sliced intercommunication with second network Media resource.