CN110048987A

CN110048987A - A kind of selection method, register method and the device of multimedia system entrance network element

Info

Publication number: CN110048987A
Application number: CN201810036897.1A
Authority: CN
Inventors: 马景旺; 聂胜贤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-01-15
Filing date: 2018-01-15
Publication date: 2019-07-23
Anticipated expiration: 2038-01-15
Also published as: WO2019137550A1; CN110048987B

Abstract

The application provides selection method, register method and the device of a kind of multimedia system entrance network element.The selection method, which includes: terminal, is sent to name server, the multimedia system entrance network element that request supports the network to be sliced for the information that network is sliced, and name server returns to the multimedia system entrance network element for supporting the network to be sliced to terminal.In turn, terminal can be connected to IMS system by the multimedia system entrance network element, and this method is that terminal selects a suitable multimedia system entrance network element, helps to select suitable IMS network, is correctly connected to IMS to realize.

Description

A kind of selection method, register method and the device of multimedia system entrance network element

Technical field

This application involves field of communication technology more particularly to a kind of selection methods of multimedia system entrance network element, registration Method and device.

Background technique

Network protocol multi-media sub-system (internet protocol multimedia subsystem, IMS) is used for The carrier services such as voice, message are provided.One public land mobile network (public land mobile network, PLMN multiple IMS networks can be disposed in), each IMS network is associated with one or more network slices.

In the scene with multiple IMS networks, how for terminal it to be connected to suitable IMS network, there is presently no provide Solution.

Summary of the invention

The application provides selection method, register method and the device of a kind of multimedia system entrance network element, to be embodied as Terminal selects suitable IMS network.

In a first aspect, the application provides a kind of selection method of multimedia system entrance network element, this method comprises: terminal to Name server sends the information of network slice, for obtaining the multimedia system entrance network element for supporting the network slice；Eventually End receives the address information of the multimedia system entrance network element from name server, and the multimedia system entrance network element is supported The network slice.

The information that network is sliced is sent to name server by the above method, terminal, is obtained and is supported the more of network slice Media system entrance network element, name server return to the multimedia system entrance network element for supporting the network to be sliced to terminal.In turn, Terminal can be connected to IMS system by the multimedia system entrance network element, and this method is that terminal selects a suitable more matchmakers System system entrance network element, helps to select suitable IMS network, is correctly connected to IMS to realize.

In one possible implementation, the information of above-mentioned network slice includes some or all of in following message: Network slice selection auxiliary information, network slice mark, network slice type.

In one possible implementation, terminal is sliced selection strategy according to network, and above-mentioned network is selected to be sliced, In, network slice selection strategy includes the corresponding relationship of network slice and multimedia service or application.For example, terminal wants hair It plays some multimedia service or in application, corresponding network can be selected to be sliced and got according to network slice selection strategy The information of network slice.

In one possible implementation, terminal is according to the address information of multimedia system entrance network element, to multimedia System initiates register flow path.Terminal can be sent out after the address information for getting multimedia system entrance network element to multimedia system Register flow path is played, realization is connected to IMS.

Second aspect, the application provide a kind of selection method of multimedia system entrance network element, this method comprises: domain name takes Business device receives the information for carrying out the network slice of self terminal；The information that name server is sliced according to the network obtains and supports institute State the address information of the multimedia system entrance network element of network slice；Name server sends out multimedia system entrance to the terminal The address information of network element.

The above method, name server receive the information for the network slice that terminal is sent, obtain and support network slice Multimedia system entrance network element, and the multimedia system entrance network element for supporting the network to be sliced is returned to terminal.In turn, terminal can To be connected to IMS system by the multimedia system entrance network element, this method is that terminal selects a suitable multimedia system Entrance network element helps to select suitable IMS network, is correctly connected to IMS to realize.

In one possible implementation, the information that name server is sliced according to the network obtains described in supporting The address information of the multimedia system entrance network element of network slice, comprising:

The information that name server is sliced according to the network, from the local ground for obtaining the multimedia system entrance network element Location information；Alternatively,

Name server sends the information that the network is sliced to network function library network element, and, name server receives The address information of the multimedia system entrance network element from network function library network element.

Above-mentioned first method, name server be locally configured multimedia system entrance network element address information and more matchmakers The information for the network slice that system system entrance network element is supported, therefore, name server can support above-mentioned network from local get The address information of the multimedia system entrance network element of slice.

Above-mentioned second method, what the address information and multimedia system entrance network element of multimedia system entrance network element were supported The information of network slice is disposed on the network element of network function library, therefore name server can be obtained from network function library and be supported The multimedia system entrance network element of above-mentioned network slice.

In one possible implementation, the information of network slice includes some or all of in following message: network Slice selection auxiliary information, network slice mark, network slice type.

The third aspect, the application provides a kind of selection method of multimedia system entrance network element, this method comprises: network function Energy library network element receives the information of the network slice from name server, for obtaining the multimedia system for supporting the network slice System entrance network element；The information that network function library network element is sliced according to the network obtains the multimedia for supporting the network slice The address information of system entry network element；Network function library network element sends the multimedia system entrance net to domain name server The address information of member, the multimedia system entrance network element support the network slice.

The above method, the network that the address information and multimedia system entrance network element of multimedia system entrance network element are supported are cut The information of piece is disposed on the network element of network function library, therefore name server can obtain from network function library and support above-mentioned net The multimedia system entrance network element of network slice.It realizes and selects correct multimedia system entrance network element for terminal.

In one possible implementation, network function library network element is received from described in multimedia system entrance network element The multimedia system entrance network element is registered to network function library network element by the information of multimedia system entrance network element；Net Network function library network element sends result instruction to the multimedia system entrance network element.

Wherein, as a result instruction can be registration completion or registration failure.

In one possible implementation, the information of multimedia system entrance network element includes the multimedia system entrance The information for the network slice that the address information of network element and the multimedia system entrance network element are supported.

Fourth aspect, the application provides a kind of register method of multimedia system entrance network element, this method comprises: multimedia System entry network element sends the information of multimedia system entrance network element to network function library network element, is used for the multimedia system Entrance network element is registered to network function library network element；Multimedia system entrance network element, which receives, comes from network function library network element Result instruction.

The above method, can be by the information registering of multimedia system entrance network element to network function library network element, so as to domain name clothes It, can be from network function library network element, convenient for management when business device needs to obtain the information of multimedia system entrance network element.

5th aspect, the application provide a kind of device, which can be terminal, be also possible to chip.The device has Realize the function of each embodiment of above-mentioned first aspect.The function can also execute phase by hardware by hardware realization The software realization answered.The hardware or software include one or more modules corresponding with above-mentioned function.

6th aspect, the application provide a kind of device, comprising: processor and memory；The memory for storing instruction, When the apparatus is operative, which executes the instruction of memory storage so that the device execute above-mentioned first aspect or The selection method of multimedia system entrance network element in any implementation method of first aspect.It should be noted that the memory It can integrate in processor, be also possible to independently of except processor.

7th aspect, the application provide a kind of device, which includes processor, and the processor is used for and memory coupling It closes, and reads the instruction in memory and execute any implementation method of above-mentioned first aspect or first aspect according to described instruction In multimedia system entrance network element selection method.

Eighth aspect, the application provide a kind of device, which can be name server, are also possible to chip.The dress Set each embodiment for having the function of realizing above-mentioned second aspect.The function can also pass through hardware by hardware realization Execute corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

9th aspect, the application provide a kind of device, comprising: processor and memory；The memory for storing instruction, When the apparatus is operative, which executes the instruction of memory storage so that the device execute above-mentioned second aspect or The selection method of multimedia system entrance network element in any implementation method of second aspect.It should be noted that the memory It can integrate in processor, be also possible to independently of except processor.

Tenth aspect, the application provide a kind of device, which includes processor, and the processor is used for and memory coupling It closes, and reads the instruction in memory and execute any implementation method of above-mentioned second aspect or second aspect according to described instruction In multimedia system entrance network element selection method.

Tenth on the one hand, and the application provides a kind of device, which can be network function library network element, be also possible to core Piece.The device has the function of realizing each embodiment of the above-mentioned third aspect.The function can also be led to by hardware realization It crosses hardware and executes corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

12nd aspect, the application provide a kind of device, comprising: processor and memory；The memory refers to for storing It enables, when the apparatus is operative, which executes the instruction of memory storage, so that the device executes the above-mentioned third aspect Or the selection method of the multimedia system entrance network element in any implementation method of the third aspect.It should be noted that the storage Device can integrate in processor, be also possible to independently of except processor.

13rd aspect, the application provide a kind of device, which includes processor, and the processor is used for and memory Coupling, and read the instruction in memory and execute any realization side of the above-mentioned third aspect or the third aspect according to described instruction The selection method of multimedia system entrance network element in method.

Fourteenth aspect, the application provide a kind of device, which can be multimedia system entrance network element, are also possible to Chip.The device has the function of realizing each embodiment of above-mentioned fourth aspect.The function can be by hardware realization, can also be with Corresponding software realization is executed by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.

15th aspect, the application provide a kind of device, comprising: processor and memory；The memory refers to for storing It enables, when the apparatus is operative, which executes the instruction of memory storage, so that the device executes above-mentioned fourth aspect Or the register method of the multimedia system entrance network element in any implementation method of fourth aspect.It should be noted that the storage Device can integrate in processor, be also possible to independently of except processor.

16th aspect, the application provide a kind of device, which includes processor, and the processor is used for and memory Coupling, and read the instruction in memory and execute any realization side of above-mentioned fourth aspect or fourth aspect according to described instruction The register method of multimedia system entrance network element in method.

17th aspect, the application also provide a kind of readable storage medium storing program for executing, are stored with program in the readable storage medium storing program for executing Or instruction, when run on a computer, so that the selection method of any multimedia system entrance network element of above-mentioned various aspects It is performed.

18th aspect, the application also provide a kind of readable storage medium storing program for executing, are stored with program in the readable storage medium storing program for executing Or instruction, when run on a computer, so that the register method quilt of any multimedia system entrance network element of above-mentioned aspect It executes.

19th aspect, the application also provides a kind of computer program product comprising instruction, when it is transported on computers When row, so that computer executes the selection method of any multimedia system entrance network element in above-mentioned various aspects.

20th aspect, the application also provides a kind of computer program product comprising instruction, when it is transported on computers When row, so that computer executes the register method of any multimedia system entrance network element in above-mentioned aspect.

20th on the one hand, and the application also provides a kind of system, which includes name server, domain name server It can be used for executing the step of being executed in either above-mentioned second aspect and second aspect method by name server.In a possibility Design in, the system can also include multimedia system entrance network element, and the multimedia system entrance network element can be used for holding By multimedia system in either the above-mentioned second aspect of row and second aspect method or in scheme provided in an embodiment of the present invention The step of entrance network element executes.In a possible design, which can also include scheme provided in an embodiment of the present invention In the other equipment, such as terminal device, etc. that are interacted with the name server and/or multimedia system entrance network element.

22nd aspect, the application also provide a kind of system, which includes network function library network element, the network function Energy library network element can be used for executing the step executed in either the above-mentioned third aspect and third aspect method by network function library network element Suddenly.In a possible design, the system can also include name server, and domain name server can be used in execution It states in either the third aspect and the third aspect method or is executed in scheme provided in an embodiment of the present invention by name server The step of, in a possible design, which can also include taking in scheme provided in an embodiment of the present invention with the domain name The other equipment that business device and/or network function library network element interact, such as multimedia system entrance network element, terminal device, etc. Deng.23rd aspect, the application also provide a kind of system, which includes multimedia system entrance network element, the multimedia System entry network element can be used for executing in either above-mentioned fourth aspect and fourth aspect method by multimedia system entrance network element The step of execution.In a possible design, which can also include network function library network element, network function library net Member can be used for executing in either above-mentioned fourth aspect and fourth aspect method or in scheme provided in an embodiment of the present invention by The step of network function library network element executes.In a possible design, which can also include that the embodiment of the present invention provides Scheme in the other equipment that are interacted with the multimedia system entrance network element and/or network function library network element, for example, domain name Server etc..

In addition, the 5th aspect technical effect brought by any design method into the 23rd aspect can be found in first Aspect technical effect brought by different implementations into fourth aspect, details are not described herein again.

These aspects or other aspects of the application can more straightforward in the following description.

Detailed description of the invention

Fig. 1 is a kind of possible network architecture schematic diagram provided by the present application；

Fig. 2A is a kind of selection method schematic diagram of multimedia system entrance network element provided by the present application；

Fig. 2 B is a kind of register method schematic diagram of multimedia system entrance network element provided by the present application；

Fig. 3 A is the selection method schematic diagram of another multimedia system entrance network element provided by the present application；

Fig. 3 B is the selection method schematic diagram of another multimedia system entrance network element provided by the present application；

Fig. 4 is a kind of schematic device provided by the present application；

Fig. 5 is a kind of terminal schematic diagram provided by the present application；

Fig. 6 is a kind of schematic device provided by the present application；

Fig. 7 is a kind of name server schematic diagram provided by the present application；

Fig. 8 is a kind of schematic device provided by the present application；

Fig. 9 is a kind of multimedia system entrance network element schematic diagram provided by the present application；

Figure 10 is a kind of schematic device provided by the present application；

Figure 11 is a kind of network function library network element schematic diagram provided by the present application.

Specific embodiment

The application is described in further detail below in conjunction with attached drawing.Concrete operation method in embodiment of the method It can be applied in Installation practice or system embodiment.Wherein, in the description of the present application, unless otherwise indicated, " multiple " It is meant that two or more.

The network architecture and business scenario of the embodiment of the present application description are to more clearly illustrate that the application is implemented The technical solution of example, does not constitute the restriction for technical solution provided by the embodiments of the present application, those of ordinary skill in the art It is found that technical solution provided by the embodiments of the present application is for similar with the differentiation of the network architecture and the appearance of new business scene The technical issues of, it is equally applicable.

As shown in Figure 1, a kind of possible network architecture schematic diagram being applicable in by the application.Include in the network architecture Terminal, name server, one or more multimedia system entrance network elements and IMS.

Terminal can obtain the address information of one or more multimedia system entrance network elements to name server request, Then terminal is connected to some IMS network by one of multimedia system entrance network element, an IMS network support it is a kind of or Multiple network slice.

Terminal is a kind of equipment with wireless communication function, can be deployed in land, including indoor or outdoors, hand It holds or vehicle-mounted；(such as steamer) can also be deployed on the water surface；It can also dispose in the sky (such as on aircraft, balloon and satellite Deng).The terminal can be mobile phone (mobile phone), tablet computer (pad), the computer with radio transmission-receiving function, virtual Real (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, Industry Control Wireless terminal in (industrial control), the wireless terminal in unmanned (self driving), tele-medicine The wireless terminal in wireless terminal, smart grid (smart grid), transportation safety in (remote medical) The wireless terminal in wireless terminal, smart city (smart city) in (transportation safety), wisdom family Wireless terminal etc. in (smart home)；It can also be various forms of user equipmenies (user equipment, UE), it is mobile Platform (mobile station, MS), terminal device (terminal device).

Name server (domain name server, DNS) has the information such as the domain name of parsing input, inquires network element The functions such as information.In the application, name server can be used for inquiring and return to the ground of multimedia system entrance network element to terminal Location information.

Multimedia system entrance network element is the network element in multimedia system with conversation control function.For example, multimedia system System entrance network element can be call session control function-agency (proxy-call session control function, P- CSCF) network element etc..P-CSCF network element can be used as an agency, receive and forward request and service, can also be used as a use The agency at family can also be used as an application function (application function, AF) network element.P-CSCF network element be responsible for into Row IMS local access network network protocol (internet protocol, IP) carrying (be also possible to other granularities, as session, Data flow etc.) resources certification, Service assurance end to end is provided for IMS.P-CSCF network element is protected to link layer security is not provided The access net of protection mechanism provides necessary safe encryption measures.

In the application, there are multiple IMS networks (or being properly termed as IP multimedia subsystem, IMS), each IMS nets in an IMS Network supports one or more network slices.Network be sliced selection strategy (network slice selection policy, It NSSP include the corresponding relationship of network slice and multimedia service or application in).

Terminal supports the access of multiple network slices, therefore, when terminal wants to initiate some application or multimedia service, It can be sliced selection strategy according to network, select network slice corresponding to the application to be initiated or multimedia service, and determine It is sliced using the network.

The application, can be by each of IMS specific multimedia service, such as voice, video etc. respectively as one A application, each multimedia service or the corresponding network slice of application.

It is understood that above-mentioned function is either network element in hardware device, is also possible in specialized hardware The virtualization instantiated in upper runs software function or platform (for example, cloud platform).

For convenience of description, the application is subsequent is known as DNS for name server, and with multimedia entry network element for P-CSCF net It is illustrated for member.For convenience of description, further, P-CSCF network element is referred to as P-CSCF.It is appreciated that subsequent descriptions In DNS can be replaced by other name servers, P-CSCF network element can be replaced by other multimedia entry network elements.Here it does It is described collectively, it is subsequent to repeat no more.

With reference to the accompanying drawing 1, selection method and register method to multimedia system entrance network element provided by the present application into Row explanation.

It as shown in Figure 2 A, is a kind of selection method of multimedia system entrance network element provided by the present application, this method includes Following steps:

Step 201, terminal sends the information that network is sliced to DNS, and correspondingly, DNS receives the network slice for carrying out self terminal Information.

Terminal sends the information that network is sliced to DNS, for obtaining the P-CSCF for supporting the network to be sliced to DNS request.

As a kind of implementation, terminal can send request message to DNS, include that above-mentioned network is cut in the request message The information of piece.It optionally, further include P-CSCF type in the request message, which is used to indicate request support The P-CSCF of network slice.It either, does not include P-CSCF type, title the application of the request message in the request message It can serve to indicate that the P-CSCF that request supports the network to be sliced.

As another implementation, terminal can also send query messages to DNS, include above-mentioned net in the query messages The information of network slice.It optionally, further include P-CSCF type in the query messages, which is used to indicate request The P-CSCF for supporting the network to be sliced.It either, does not include P-CSCF type, the title sheet of the query messages in the query messages Application can serve to indicate that the P-CSCF that request supports the network to be sliced.

As a kind of implementation, need to initiate some multimedia service or in application, can be according to wanting when terminal determines The multimedia service of initiation or application and network are sliced selection strategy, and selection obtains above-mentioned network slice, and obtains being somebody's turn to do for selection The information of network slice.It wherein, include the corresponding pass of network slice with multimedia service or application in network slice selection strategy System.

As a kind of implementation, the information that terminal is sent to the network slice of DNS includes but is not limited in following information Some or all of: network slice selection auxiliary information, network slice mark, network slice type.

Network slice selection auxiliary information can be single network slice selection auxiliary information (s ingle network Slice selection assistance information, S-NSSAI).Network slice type (Slice Type) can be with It is the type of service (Service Type) that network slice is supported, such as extensive Internet of Things (massive IoT, MIoT), increasing Strong mobile broadband (enhanced mobile broadband, eMBB), super reliable low latency communicate (ultra-reliable Low latency communications, URLLC) etc..

Step 202, the information that DNS is sliced according to network obtains the address information for supporting the P-CSCF of network slice.

Wherein, the address information of P-CSCF, such as may include IP address or media access control (medium access Control, MAC) address etc..

Optionally, as a kind of implementation, the information of P-CSCF is locally configured in DNS, and the information of P-CSCF includes P- The information such as address information, the P-CSCF network sectioning capability of CSCF.Wherein, P-CSCF network sectioning capability, refers to P-CSCF The network slice supported, for example, P-CSCF supports network slice 1, network slice 2 and network slice 3, the then net of the P-CSCF Network sectioning capability includes: network slice 1, network slice 2 and network slice 3.

Therefore, when DNS is locally furnished with the information of P-CSCF, then the information that DNS is sliced according to network obtains branch from local Hold the address information of the P-CSCF of network slice.For example, terminal sent to DNS be network slice 1 information, then DNS can To be sliced 1 information according to the network, from the local P-CSCF for getting and the network being supported to be sliced 1, for example, P-CSCF1, P-CSCF2, P-CSCF3, the then address information of the P-CSCF for support network slice 1 that DNS is got are as follows: the ground of P-CSCF1 Location information, the address information of P-CSCF2, the address information of P-CSCF3.

Optionally, in another implementation, the information of P-CSCF is to register and be stored in other network elements, such as network function Energy library network element, then DNS can pass through the address information that the network function library network element obtains the P-CSCF for supporting the network to be sliced.Its In, network function library network element, such as can be network function library facility (network function repository Function, NRF) network element.NRF network element supports service discovery function, receives the second network function of first network function example Example discovery is requested and the second network function example that will be seen that is sent to first network function example, and first network function is real Example and the second network function example can be the same or different.NRF network element can save the file of available network function example With the service of support, the information in the file of some network function example includes the mark of network function example, network function class Type, network are sliced relevant mark (such as S-NSSAI, NSIID), the IP address of network function or the energy of domain name, network function Service, the terminal point information of example for supporting service that force information, network function are supported etc..For example network element A is looked into the request of NRF network element Network element B is ask, then the network function type carried in request message is B, relevant mark of network slice etc. can also be carried, than As S-NSSAI-1 meets inquiry then NRF network element will inquire the file of available network function example according to this two information The network function example of condition can be sent to network element A, and the information of return can be the IP address etc. of network function.

It is illustrated so that network function library network element is NRF network element as an example below.E.g., including following steps:

Step A, DNS send the information that network is sliced to NRF network element, and correspondingly, NRF network element receives the network that DNS is sent The information of slice.

DNS sends the information that network is sliced to NRF network element, the P-CSCF for supporting the network to be sliced for request.

For example, DNS can send request message or query messages to NRF network element, wherein carrying as a kind of implementation The information of network slice.

As a kind of implementation, the format of the information of network that DNS is sent to NRF network element slice can be with DNS from end The format for terminating the information of the network slice received is identical.

Alternatively, as another implementation, the format of the information for the network slice that DNS is sent to NRF network element, Ke Yiyu The format of the information for the network slice that DNS is received from terminal is not identical, i.e. letter of the DNS to the network slice received from terminal The format of breath is modified, and is then sent to NRF network element.

The information that step B, NRF network element is sliced according to the network obtains the address letter for supporting the P-CSCF of network slice Breath.

Due to registering and being stored with the information of P-CSCF on NRF network element, address information, P-CSCF for example including P-CSCF The information such as network sectioning capability.Therefore, NRF network element can be supported according to the information of the network slice received from local obtain The address information of one or more P-CSCF of network slice.

Step C, NRF network element sends the address information of P-CSCF to DNS, and correspondingly, DNS receives the P- that NRF network element is sent The address information of CSCF.

As a kind of implementation, NRF network element is getting the one or more P-CSCF's for supporting above-mentioned network slice After address information, it is sent to DNS, the address information of a P-CSCF is determined by DNS or by terminal.

Alternatively, being also possible to one or more be sliced by NRF network element from the above-mentioned network of support as another implementation One is determined in a P-CSCF, and the address information of determining P-CSCF is sent to DNS.

Step 203, DNS sends the address information of the P-CSCF obtained to terminal, and correspondingly, terminal receives what DNS was sent The address information of P-CSCF.

DNS is sent to terminal after getting the address information for supporting one or more P-CSCF of above-mentioned network slice, The address information of a P-CSCF is determined by terminal.

Alternatively, being also possible to determine one from the one or more P-CSCF for supporting above-mentioned network to be sliced by DNS, and will The address information of determining P-CSCF is sent to terminal.

By the above method, the information that network is sliced is sent to name server by terminal, and request supports the network The multimedia system entrance network element of slice, name server return to the multimedia system entrance net for supporting the network to be sliced to terminal Member.In turn, terminal can be connected to IMS system by the multimedia system entrance network element, and this method is that terminal selects a conjunction Suitable multimedia system entrance network element helps to select suitable IMS network, is correctly connected to IMS to realize.

Optionally, step further include:

Step 204, terminal initiates register flow path to multimedia system according to the address information of P-CSCF.

With reference to the accompanying drawing 1, the above method is illustrated.

For example, terminal is wanted to initiate multimedia service A, selection strategy is sliced according to network, determines that multimedia service A is corresponding Network slice be network slice 1, then terminal to DNS send network slice 1 information.

After DNS receives the information of network slice 1, the support network is got from local or from network function library network element The address information of one or more P-CSCF of slice 1, for example, supporting the P-CSCF of network slice 1 are as follows: P-CSCF1, P- CSCF2, then DNS sends the address information of P-CSCF1 and the address information of P-CSCF2 to terminal, certainly, as another real It is existing, a P-CSCF can also be selected by DNS and the address information of the P-CSCF of selection is sent to terminal, for example sends P- The address information of CSCF1 is to terminal, or sends the address information of P-CSCF2 to terminal.

Terminal receives the address information for the P-CSCF that DNS is sent, such as receives the address information and P- of P-CSCF1 The address information of CSCF2.

Then, terminal selects one from the address information of the P-CSCF received.For example, if receiving multiple P-CSCF Address information, then can be believed from the address of the multiple P-CSCF received based on the load of P-CSCF, the factors such as network capabilities In breath, the address information of a P-CSCF is selected.Certainly, if receiving only the address information of a P-CSCF, terminal without It need to further select.

Then, terminal initiates register flow path to multimedia system according to the address information of the P-CSCF of selection.

For example, with reference to Fig. 1, if terminal selection be P-CSCF2 address information, terminal is by P-CSCF2, to IMS In IMS network 2 initiate multimedia service, the multimedia service corresponding network slice is network slice 1, the IMS network 2 to The network is supported to be sliced 1 less.

It should be noted that P-CSCF and IMS network have a corresponding relationship, such as shown in Figure 1, P-CSCF with IMS network can be one-to-one relationship.

As shown in Figure 2 B, it is a kind of register method of multimedia system entrance network element provided by the present application, passes through the registration P-CSCF can be registered to network function library network element by method, so that DNS, which can choose to obtain from network function library, supports some net The P-CSCF of network slice.It is illustrated so that network function library network element is NRF network element as an example below.Method includes the following steps:

Step 301, P-CSCF sends the information of P-CSCF to NRF network element, and correspondingly, NRF network element receives P-CSCF and sends P-CSCF information.

P-CSCF sends the information of P-CSCF to NRF network element, and P-CSCF is registered to the NRF network element for requesting.Wherein, The information of the P-CSCF may include the information of the address information of P-CSCF and the network slice of P-CSCF support.Optionally, P- The information of CSCF further include: mark, P-CSCF type, the domain name of P-CSCF, the ability information of P-CSCF, P-CSCF of P-CSCF Some or all of in the service of support, the terminal point information of the example of support service.

As a kind of implementation, P-CSCF can send login request message, the login request message packet to NRF network element Include the information of P-CSCF.

NRF network element saves the information of the P-CSCF after receiving the information of P-CSCF.It is also understood that by P- CSCF is registered to the NRF network element.

Step 302, NRF network element sends result instruction to multimedia system entrance network element.

For example, then sending the result that registration is completed after NFR network element registers completion to the P-CSCF to P-CSCF and referring to Show.Such as completion message can be sent a notification message or register, for notifying registration to complete.

If registration failure, NRF network element sends the result instruction of registration failure to P-CSCF

The above method, can be by the information registering of multimedia system entrance network element to network function library network element, to need to obtain It, can be from network function library network element, convenient for management when taking the information of multimedia system entrance network element.

As an example, combined with specific embodiments below, providing the specific implementation of the various embodiments described above.

It is the selection method schematic diagram of another multimedia system entrance network element provided by the present application with reference to Fig. 3 A.Including Following steps:

Step 1, terminal determines the network slice where the IMS network of access.

Terminal storage has network to be sliced selection strategy (network slice selection policy, NSSP), NSSP It include using the corresponding relationship being sliced with network.For example being sliced using the corresponding network of A is X, when terminal is initiated using A, The network slice for then determining access is X.

Step 2, terminal establishes IP connection by session management process and accesses network (IP connectivity access Network, IP-CAN) session.

For example, the session management process may be one business data flow of creation or activation in 5G.

Step 3, terminal passes through IP-CAN to dynamic host configuration protocol (dynamic host configuration Protocol, DHCP) server request obtain DNS IP address.

Wherein, DNCP server can be the network element in IP-CAN, such as conversation management functional (session management Function, SMF) network element), it is also possible to the server individually disposed.

The step, terminal can get the IP address of one or more DNS from Dynamic Host Configuration Protocol server.

It should be noted that above-mentioned steps 2- step 3 is optional step, which show a kind of IP address for obtaining DNS Implementation in practical application, can also be that other way obtains the IP address of DNS, the application is not construed as limiting this.

Step 4, terminal selects one from the DNS obtained, and sends DNS request message to the DNS.

It include P-CSCF type and network slice information (such as single network slice selection auxiliary letter in the DNS request message Cease (single network slice selection assistance information, S-NSSAI)), the DNS request Message is used for the P-CSCF of request support network slice.

Step 5, DNS sends DNS response message to terminal, which includes the letter for the P-CSCF that DNS is obtained Breath.

If DNS determines that multiple P-CSCF, DNS can therefrom select one, and the information of the P-CSCF of selection is sent out Terminal is given, alternatively, the information (IP address of such as P-CSCF) of multiple P-CSCF of selection is directly sent to terminal by DNS, by Terminal oneself selects a P-CSCF.

Terminal can initiate IMS registration process after determining a P-CSCF, if the P-CSCF registration failure of selection, Other P-CSCF can be reselected to again attempt to register.

In the embodiment, when terminal is to DNS query P-CSCF, the information that the network for sending selection to DNS is sliced, DNS can support the information of the P-CSCF of network slice according to the information inquiry that network is sliced, so that inquiry obtained P-CSCF supports the network slice of terminal selection, thus helps to successfully complete IMS registration.

It is the selection method schematic diagram of another multimedia system entrance network element provided by the present application with reference to Fig. 3 B.Including Following steps:

Step 1- step 4, it is identical as the step 1- step 4 in embodiment shown in Fig. 3 A, it can refer to foregoing description.

Step 5, DNS sends NE Discovery request message to NRF network element, includes P-CSCF in the NE Discovery request message The information of type and network slice.

DNS therefrom gets the information of P-CSCF type and network slice after receiving the DNS request message of terminal, Then the information that P-CSCF type and network are sliced is carried in NE Discovery request message and is sent to NRF network element by DNS, by NRF network element returns to the information of one or more P-CSCF for supporting network slice.

Step 6, NRF network element sends NE Discovery response message to DNS, include in the NE Discovery response message one or The information of multiple P-CSCF.

Step 7, DNS sends DNS response message to terminal, which includes the letter of one or more P-CSCF Breath.

Above-mentioned steps 5- step 7 in specific implementation, such as can have following implementations:

In one implementation, if NRF network element gets the information of multiple P-CSCF, NRF network element therefrom selects one It is a, and the information of the P-CSCF of selection is sent to DNS, terminal is then sent to by DNS.

In another implementation, if NRF network element gets the information of multiple P-CSCF, NRF network element be will acquire The information of multiple P-CSCF is sent to DNS, then DNS therefrom selects one and the information of the P-CSCF of selection is sent to end End.

In another implementation, if NRF network element gets the information of multiple P-CSCF, NRF network element be will acquire The information of multiple P-CSCF is sent to DNS, and then the information of the multiple P-CSCF received is sent to terminal by DNS, then eventually End therefrom selects one.

In the embodiment, when terminal is to DNS query P-CSCF, the information that the network for sending selection to DNS is sliced, DNS returns to the information for the P-CSCF for supporting the network to be sliced to terminal, so that the P-CSCF that inquiry obtains supports terminal choosing The network slice selected, thus help to successfully complete IMS registration.Also, the embodiment is from DNS by external network element, Such as the information of NRF network element request inquiry P-CSCF, thus the load and pressure of DNS can be mitigated.

It is above-mentioned that mainly scheme provided by the present application is described from the angle of interaction between each network element.It is understood that , in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or soft for above-mentioned each network element of realization Part module.Those skilled in the art should be readily appreciated that, described in conjunction with the examples disclosed in the embodiments of the present disclosure Unit and algorithm steps, the present invention can be realized with the combining form of hardware or hardware and computer software.Some function is studied carefully Unexpectedly it is executed in a manner of hardware or computer software driving hardware, the specific application and design constraint depending on technical solution Condition.Professional technician can use different methods to achieve the described function each specific application, but this Kind is realized and be should not be considered as beyond the scope of the present invention.

Using integrated unit, Fig. 4 shows another device involved in the embodiment of the present invention Possible exemplary block diagram, the device 400 can exist in the form of software, or terminal, it can also be in terminal Chip.Device 400 includes: processing unit 402 and communication unit 403.In one implementation, communication unit 403 includes connecing Receive unit and transmission unit.Processing unit 402 is for carrying out control management to the movement of device 400.Communication unit 403 is for branch Hold the communication of device 400 Yu other network entities (such as DNS, P-CSCF).For example, communication unit 403 is held with support device 400 Step 201 in row Fig. 2A, step 203, the step 204 perhaps processing of terminal involved in method shown in embodiment 3A or 3B Other processes of process and/or technical solution described herein.Device 400 can also include storage unit 401, for depositing The program code and data of storage device 400.

Wherein, processing unit 402 can be processor or controller, such as can be general central processor (central Processing unit, CPU), general processor, Digital Signal Processing (digital signal processing, DSP), Specific integrated circuit (application specific integrated circuits, ASIC), field programmable gate array It is (field programmable gate array, FPGA) or other programmable logic device, transistor logic, hard Part component or any combination thereof.It may be implemented or execute to combine and various illustratively patrol described in the disclosure of invention Collect box, module and circuit.The processor is also possible to realize the combination of computing function, such as includes one or more micro- places Manage device combination, DSP and the combination of microprocessor etc..Communication unit 403 can be communication interface, transceiver or transmission circuit Deng.Storage unit 401 can be memory.

When processing unit 402 is processor, communication unit 403 is transceiver, when storage unit 401 is memory, this hair Device 400 involved in bright embodiment can be terminal shown in fig. 5.

Fig. 5 shows a kind of rough schematic view of possible design structure of terminal involved in the embodiment of the present invention. The terminal 500 includes transmitter 501, receiver 502 and processor 503.Wherein, processor 503 or controller, figure " controller/processor 503 " is expressed as in 5.Optionally, the terminal 500 can also include modem processor 505, In, modem processor 505 may include encoder 506, modulator 507, decoder 508 and demodulator 509.

In one example, transmitter 501 adjusts (for example, analog-converted, filtering, amplification and up-conversion etc.) output sampling And uplink signal is generated, which is transmitted to DNS, P-CSCF described in above-described embodiment via antenna. On the uplink, antenna receives down link signal.Receiver 502 is adjusted (for example, filtering, amplification, down coversion and number Change etc.) from antenna received signal and provide input sample.In modem processor 505, the reception of encoder 506 will be upper The business datum and signaling message sent on line link, and business datum and signaling message are handled (for example, format, Coding and intertexture).Modulator 507 is further processed the business datum after (for example, symbol mapping and modulation) encodes and signaling disappears It ceases and output sampling is provided.The processing of demodulator 509 (for example, demodulation) input sample simultaneously provides sign estimation.At decoder 508 Reason (for example, deinterleaving and decoding) sign estimation simultaneously provides the decoded data and signaling message for being sent to terminal 500.It compiles Code device 506, modulator 507, demodulator 509 and decoder 508 can be realized by the modem processor 505 synthesized.This The wireless access technology (for example, access technology of LTE and other evolution systems) that a little units are used according to wireless access network come into Row processing.It should be noted that when terminal 500 does not include modem processor 505, modem processor 505 it is upper Stating function can also be completed by processor 503.

Processor 503 carries out control management to the movement of terminal 500, for executing in the embodiments of the present invention by terminal 500 treatment processes carried out.For example, processor 503 is also used to execute Fig. 2A, end involved in method shown in Fig. 3 A or Fig. 3 B Other processes of the treatment process at end and/or technical solution described herein.

Further, terminal 500 can also include memory 504, and memory 504 is used to store the journey for terminal 500 Sequence code and data.

Using integrated unit, what Fig. 6 showed a kind of device involved in the embodiment of the present invention can The exemplary block diagram of energy, the device 600 can exist in the form of software, or name server can also be domain name Chip in server.Device 600 includes: processing unit 602 and communication unit 603, and communication unit 603 may include receiving list Member and transmission unit.Processing unit 602 is for carrying out control management to the movement of device 600.Communication unit 603 is for supporting dress Set the communication of 600 Yu other network entities (such as terminal).Device 600 can also include storage unit 601, be used for storage device 600 program code and data.

Wherein, processing unit 602 can be processor or controller, such as can be CPU, general processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic, hardware component or any combination thereof.It can be with It realizes or executes and combine various illustrative logic blocks, module and circuit described in the disclosure of invention.The processing Device is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, the group of DSP and microprocessor Close etc..Communication unit 603 can be communication interface, transceiver or transmission circuit etc., wherein and the communication interface is to be referred to as, It in the specific implementation, the communication interface may include multiple interfaces, such as may include: connecing between name server and terminal Mouth and/or other interfaces.Storage unit 601 can be memory.

Processing unit 602 can support device 600 to execute the movement of name server in above each method example, such as Device 600 is supported to execute the step 202 in Fig. 2A.Communication unit 603 can support the communication between device 600 and terminal, example Such as, communication unit 603 can support device 600 to execute step 201, step 203 in Fig. 2A.

When processing unit 602 is processor, communication unit 603 is communication interface, when storage unit 601 is memory, this Device 600 involved in inventive embodiments can be name server 700 shown in Fig. 7.

As shown in fig.7, the name server 700 includes: processor 702, communication interface 703, memory 701.It is optional , name server 700 can also include bus 704.Wherein, communication interface 703, processor 702 and memory 701 can be with It is connected with each other by bus 704；Bus 704 can be Peripheral Component Interconnect standard (peripheral component Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (extended industry standard Architecture, abbreviation EISA) bus etc..The bus 704 can be divided into address bus, data/address bus, control bus etc.. Only to be indicated with a thick line in Fig. 7, it is not intended that an only bus or a type of bus convenient for indicating.

Using integrated unit, what Fig. 8 showed a kind of device involved in the embodiment of the present invention can The exemplary block diagram of energy, the device 800 can exist in the form of software, or multimedia system entrance network element may be used also Think the chip in multimedia system entrance network element.Device 800 includes: processing unit 802 and communication unit 803, communication unit 803 may include receiving unit and transmission unit.Processing unit 802 is for carrying out control management to the movement of device 800.Communication Unit 803 is used to support the communication of device 800 Yu other network entities (such as terminal, network function library network element).Device 800 is also It may include storage unit 801, the program code and data for storage device 800.

Wherein, processing unit 802 can be processor or controller, such as can be CPU, general processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic, hardware component or any combination thereof.It can be with It realizes or executes and combine various illustrative logic blocks, module and circuit described in the disclosure of invention.The processing Device is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, the group of DSP and microprocessor Close etc..Communication unit 803 can be communication interface, transceiver or transmission circuit etc., wherein and the communication interface is to be referred to as, In the specific implementation, the communication interface may include multiple interfaces, for example, may include: multimedia system entrance network element and terminal it Between interface, interface and/or other interfaces between multimedia system entrance network element and network function library network element.Storage unit 801 can be memory.

Processing unit 802 can support device 800 to execute multimedia system entrance network element in above each method example Movement.Communication unit 803 can support the communication between device 800 and terminal, for example, communication unit 803 can support device 800 execute the step 204 in Fig. 2A, and the step 301- step 302 in Fig. 2 B perhaps relates in method shown in Fig. 3 A or Fig. 3 B And multimedia system entrance network element treatment process and/or technical solution described herein other processes.

When processing unit 802 is processor, communication unit 803 is communication interface, when storage unit 801 is memory, this Device 800 involved in inventive embodiments can be multimedia system entrance network element 900 shown in Fig. 9.

As shown in fig.9, the multimedia system entrance network element 900 includes: processor 902, communication interface 903, memory 901.Optionally, multimedia system entrance network element 900 can also include bus 904.Wherein, communication interface 903, processor 902 And memory 901 can be connected with each other by bus 904；Bus 904 can be pci bus or eisa bus etc..It is described total Line 904 can be divided into address bus, data/address bus, control bus etc..Only to be indicated with a thick line in Fig. 9 convenient for indicating, but It is not offered as only a bus or a type of bus.

Using integrated unit, what Figure 10 showed a kind of device involved in the embodiment of the present invention can Can exemplary block diagram, which can exist in the form of software, or network function library network element can also be Chip in the network element of network function library.Device 1000 includes: processing unit 1002 and communication unit 1003, and communication unit 1003 can To include receiving unit and transmission unit.Processing unit 1002 is for carrying out control management to the movement of device 1000.Communication unit Member 1003 is for supporting the communication of device 1000 Yu other network entities (such as multimedia system entrance network element).Device 1000 is also It may include storage unit 1001, the program code and data for storage device 1000.

Wherein, processing unit 1002 can be processor or controller, such as can be CPU, general processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic, hardware component or any combination thereof.It can be with It realizes or executes and combine various illustrative logic blocks, module and circuit described in the disclosure of invention.The processing Device is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, the group of DSP and microprocessor Close etc..Communication unit 1003 can be communication interface, transceiver or transmission circuit etc., wherein and the communication interface is to be referred to as, It in the specific implementation, the communication interface may include multiple interfaces, such as may include: network function library network element and multimedia system Interface and/or other interfaces between entrance network element.Storage unit 1001 can be memory.

Processing unit 1002 can support device 1000 execute above in each method example network function library network element it is dynamic Make.Communication unit 1003 can support the communication between device 1000 and terminal, for example, communication unit 1003 can support device 1000 execute step 301- step 302 in Fig. 2 B perhaps network function library network element involved in method shown in Fig. 3 A or Fig. 3 B Treatment process and/or technical solution described herein other processes.

When processing unit 1002 is processor, communication unit 1003 is communication interface, when storage unit 1001 is memory, Device 1000 involved in the embodiment of the present invention can be network function library network element 1100 shown in Figure 11.

Refering to fig. 1 shown in 1, which includes: processor 1102, communication interface 1103, memory 1101.Optionally, network function library network element 1100 can also include bus 1104.Wherein, communication interface 1103, processor 1102 And memory 1101 can be connected with each other by bus 1104；Bus 1104 can be pci bus or eisa bus etc..It is described Bus 1104 can be divided into address bus, data/address bus, control bus etc..For convenient for indicating, only with a thick line table in Figure 11 Show, it is not intended that an only bus or a type of bus.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or It partly generates according to process or function described in the embodiment of the present invention.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk (Solid State Disk, SSD)) etc..

Various illustrative logic units and circuit described in the embodiment of the present application can be by general processors, number Word signal processor, specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, from Door or transistor logic are dissipated, discrete hardware components or above-mentioned any combination of design carry out implementation or operation described function.It is logical It can be microprocessor with processor, optionally, which may be any traditional processor, controller, micro- Controller or state machine.Processor can also be realized by the combination of computing device, such as digital signal processor and Wei Chu Device, multi-microprocessor are managed, one or more microprocessors combine a digital signal processor core or any other like Configuration is to realize.

The step of method described in the embodiment of the present application or algorithm can be directly embedded into hardware, processor execute it is soft The combination of part unit or the two.Software unit can store in RAM memory, flash memory, ROM memory, EPROM storage Other any form of storaging mediums in device, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this field In.Illustratively, storaging medium can be connect with processor, so that processor can read information from storaging medium, and It can be to storaging medium stored and written information.Optionally, storaging medium can also be integrated into the processor.Processor and storaging medium can To be set in asic, ASIC be can be set in terminal device.Optionally, processor and storaging medium also can be set in end In different components in end equipment.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although in conjunction with specific features and embodiment, invention has been described, it is clear that, do not departing from this hair In the case where bright spirit and scope, it can be carry out various modifications and is combined.Correspondingly, the specification and drawings are only institute The exemplary illustration of the invention that attached claim is defined, and be considered as covered in the scope of the invention any and all and repair Change, change, combining or equivalent.Obviously, those skilled in the art various changes and modifications can be made to the invention without It is detached from the spirit and scope of the present invention.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its Within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of selection method of multimedia system entrance network element characterized by comprising

Terminal sends the information that network is sliced to name server, supports the multimedia system of the network slice to enter for obtaining Mouth network element；

The terminal receives the address information of the multimedia system entrance network element from domain name server, the multimedia system Entrance network element of uniting supports the network slice.

2. the method according to claim 1, wherein the method also includes:

The terminal is sliced selection strategy according to network, and the network is selected to be sliced, wherein the network is sliced selection strategy packet Include the corresponding relationship of network slice and multimedia service or application.

3. method according to claim 1 or 2, which is characterized in that the information of the network slice includes in following message Some or all of: network slice selection auxiliary information, network slice mark, network slice type.

4. according to the method in any one of claims 1 to 3, which is characterized in that the method also includes:

The terminal initiates register flow path to multimedia system according to the address information of the multimedia system entrance network element.

5. a kind of selection method of multimedia system entrance network element characterized by comprising

Name server receives the information for carrying out the network slice of self terminal, for obtaining the multimedia system for supporting the network slice System entrance network element；

The information that domain name server is sliced according to the network obtains the multimedia system entrance for supporting the network slice The address information of network element；

Address information of the domain name server to terminal hair multimedia system entrance network element.

6. according to the method described in claim 5, it is characterized in that, the letter that domain name server is sliced according to the network Breath obtains the address information for supporting the multimedia system entrance network element of the network slice, comprising:

The information that domain name server is sliced according to the network, from the local ground for obtaining the multimedia system entrance network element Location information；Alternatively,

Domain name server sends the information that the network is sliced to network function library network element, and, domain name server Receive the address information of the multimedia system entrance network element from network function library network element.

7. method according to claim 5 or 6, which is characterized in that the information of the network slice includes in following message Some or all of: network slice selection auxiliary information, network slice mark, network slice type.

8. a kind of selection method of multimedia system entrance network element characterized by comprising

Network function library network element receives the information of the network slice from name server, supports the network slice for obtaining Multimedia system entrance network element；

The information that network function library network element is sliced according to the network obtains the multimedia system for supporting the network slice The address information of entrance network element；

Network function library network element sends the address information of the multimedia system entrance network element, institute to domain name server It states multimedia system entrance network element and supports the network slice.

9. according to the method described in claim 8, it is characterized in that, the information of network slice includes the portion in following message Divide or whole: network is sliced selection auxiliary information, network slice identifies, network slice type.

10. method according to claim 8 or claim 9, which is characterized in that the method also includes:

Network function library network element receives the multimedia system entrance network element from the multimedia system entrance network element Information, the multimedia system entrance network element is registered to network function library network element；

Network function library network element sends result instruction to the multimedia system entrance network element.

11. according to the method described in claim 10, it is characterized in that, the information of the multimedia system entrance network element includes institute The information for the network slice that the address information and the multimedia system entrance network element for stating multimedia system entrance network element are supported.

12. a kind of register method of multimedia system entrance network element characterized by comprising

Multimedia system entrance network element sends the information of multimedia system entrance network element to network function library network element, and being used for will be described Multimedia system entrance network element is registered to network function library network element；

The multimedia system entrance network element receives the result instruction from network function library network element.

13. according to the method for claim 12, which is characterized in that the information of the multimedia system entrance network element includes institute The information for the network slice that the address information and the multimedia system entrance network element for stating multimedia system entrance network element are supported.

14. a kind of device characterized by comprising

Transmission unit supports the more of the network slice for obtaining for sending the information that network is sliced to name server Media system entrance network element；

Receiving unit is described more for receiving the address information of the multimedia system entrance network element from domain name server Media system entrance network element supports the network slice.

15. device according to claim 14, which is characterized in that described device further includes processing unit, for according to net Network is sliced selection strategy, and the network is selected to be sliced, wherein the network slice selection strategy includes network slice and multimedia Business or the corresponding relationship of application.

16. device according to claim 14 or 15, which is characterized in that the information of the network slice includes following message Some or all of in: network slice selection auxiliary information, network slice mark, network slice type.

17. device described in any one of 4 to 16 according to claim 1, which is characterized in that the transmission unit is also used to root According to the address information of the multimedia system entrance network element, register flow path is initiated to multimedia system.

18. a kind of device characterized by comprising

Receiving unit, for receiving the information for carrying out the network slice of self terminal, for obtaining the more matchmakers for supporting the network slice System system entrance network element；

Processing unit, the information for being sliced according to the network obtain the multimedia system entrance for supporting the network slice The address information of network element；

Transmission unit, for the address information to terminal hair multimedia system entrance network element.

19. device according to claim 18, which is characterized in that the processing unit is specifically used for according to the network The information of slice, from the local address information for obtaining the multimedia system entrance network element；Alternatively,

The processing unit sends the information that the network is sliced to network function library network element by the transmission unit, and, The processing unit receives the multimedia system entrance net from network function library network element by the receiving unit The address information of member.

20. device described in 8 or 19 according to claim 1, which is characterized in that the information of the network slice includes following message Some or all of in: network slice selection auxiliary information, network slice mark, network slice type.

21. a kind of device characterized by comprising

Receiving unit supports the network slice for obtaining for receiving the information of the network slice from name server Multimedia system entrance network element；

Transmission unit is described more for sending the address information of the multimedia system entrance network element to domain name server Media system entrance network element supports the network slice.

22. device according to claim 21, which is characterized in that the information of the network slice includes in following message It is part or all of: network slice selection auxiliary information, network slice mark, network slice type.

23. the device according to claim 21 or 22, which is characterized in that the receiving unit is also used to receive from institute The information for stating the multimedia system entrance network element of multimedia system entrance network element infuses the multimedia system entrance network element Volume is to network function library network element；

The transmission unit is also used to send result instruction to the multimedia system entrance network element.

24. device according to claim 23, which is characterized in that the information of the multimedia system entrance network element includes institute The information for the network slice that the address information and the multimedia system entrance network element for stating multimedia system entrance network element are supported.

25. a kind of device characterized by comprising

Transmission unit is used for for sending the information of multimedia system entrance network element to network function library network element by more matchmakers System system entrance network element is registered to network function library network element；

Receiving unit, for receiving the result instruction from network function library network element.

26. device according to claim 25, which is characterized in that the information of the multimedia system entrance network element includes institute The information for the network slice that the address information and the multimedia system entrance network element for stating multimedia system entrance network element are supported.

27. a kind of computer readable storage medium, which is characterized in that be stored in the computer readable storage medium program or Instruction, when run on a computer, so that computer executes the method as described in any in claim 1 to 13.