CN109842903A

CN109842903A - A kind of the determination method, apparatus and system of link information

Info

Publication number: CN109842903A
Application number: CN201711206854.5A
Authority: CN
Inventors: 李汉成
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-11-27
Filing date: 2017-11-27
Publication date: 2019-06-04
Anticipated expiration: 2037-11-27
Also published as: CN109842903B

Abstract

The application provides the determination method, apparatus and system of a kind of link information.This method comprises: mobile management network element receives NAS message and the second link information from accessing gateway equipment, NAS message includes instruction information, instruction information is used to indicate the first link information, first link information is used to indicate the access information of terminal, second link information is the link information of the access information for being used to indicate terminal in accessing gateway equipment, mobile management network element verification instruction information and the second link information.Since mobile management network element is available to instruction information and the second link information, and instruction information and the second link information are verified, if verification is correct, using the second link information as the link information used.So as to improve acquisition link information correctness.

Description

A kind of the determination method, apparatus and system of link information

Technical field

This application involves mobile communication technology field more particularly to the determination method, apparatus and system of a kind of link information.

Background technique

In order to cope with the challenge of wireless broad band technology, third generation partner program (3rd Generation is kept Partnership Project, 3GPP) network leading superiority, 3GPP standard group formulated next generation mobile communication network rack Structure (Next Generation System), referred to as the 5th generation network (5th Generation, 5G) move converged network framework admittedly. Wireless technology that the network architecture is not only supported to define by 3GPP standard group (such as long term evolution (Long Term, LTE), 5G without Line access network (Radio Access Network, RAN) etc.) Access Core Network (5G Core network), it also supports logical Cross fixed network Access Core Network.

Based on the above-mentioned network architecture, core network control surface is needed when establishing session using the link information for arriving terminal.Mesh Before, core network control surface obtains the mode of link information are as follows: sends core net control for link information by accessing gateway equipment Face.

Main problem existing for the above method is: since N2 interface does not encrypt the content of transmitting, it is possible to pass It is modified during defeated, the link information for causing core network control surface to receive is wrong.

Summary of the invention

The application provides the determination method, apparatus and system of a kind of link information, receives to promote core network control surface The correctness of the link information arrived.

In a first aspect, the application provides a kind of determination method of link information.This method comprises: firstly, mobile management Network element receives NAS message and the second link information from accessing gateway equipment, wherein NAS message includes instruction information, instruction Information is used to indicate the first link information, and the first link information is used to indicate the access information of terminal, and the second link information is to connect The link information of the access information for being used to indicate terminal in function Access Gateway equipment.Then, mobile management network element verification instruction letter Breath and the second link information.

Since mobile management network element is available to instruction information and the second link information, and to instruction information and second Link information is verified, if verification is correct, using the second link information as the link information used.It is obtained so as to improve The correctness of the link information taken.

In one possible implementation, instruction information is that the first link generates information, and the first link generates information and is It is calculated according to the first link information and challenge character string, then mobile management network element verification instruction information and the second link letter Breath, comprising: mobile management network element according to the second link information and challenge character string, is calculated the second link and generates letter first Breath；Then information is generated according to the second link and the first link information generates information, verification instruction information and the second link information.

Second aspect, the application provide a kind of determination method of link information.This method comprises: mobile management network element connects Receive the non access stratum NAS message from equipment for radio access network, wherein NAS message includes instruction information, and instruction information is used for Indicate that the first link information, the first link information are used to indicate the access information of terminal；Then, mobile management network element obtains the Two link informations, the second link information are the link information of the access information for being used to indicate terminal in accessing gateway equipment；It moves Mobility management network element verification instruction information and the second link information.

In one possible implementation, instruction information is that the first link generates information, and the first link generates information and is It is calculated according to the first link information and challenge character string, NAS message further includes the information of accessing gateway equipment；Then mobility Managed network element obtains the second link information, comprising: firstly, information of the mobile management network element according to accessing gateway equipment, determines Accessing gateway equipment；Then, mobile management network element sends request message to accessing gateway equipment, and request message includes that terminal is faced When identify, for identifying terminal, terminal temporary identifier is associated with terminal temporary identifier with the second link information；Then, mobility pipe It manages network element and receives the second link information from accessing gateway equipment；

Mobile management network element verification instruction information and the second link information, comprising: firstly, mobile management network element according to Second link information and challenge character string, are calculated the second link and generate information；Then, mobile management network element is according to first Link generates information and the second link generates information, verification instruction information and the second link information.

In another possible implementation, instruction information is the first link information；Then mobile management network element obtains Second link information, comprising: firstly, mobile management network element determines accessing gateway equipment according to the first link information；Then, Mobile management network element sends request message to accessing gateway equipment, wherein request message includes terminal temporary identifier, and terminal is faced When mark for identifying terminal, terminal temporary identifier is associated with the second link information；Then, mobile management network element reception comes from Second link information of accessing gateway equipment.Mobile management network element verification instruction information and the second link information, comprising: mobile Property managed network element according to the first link information and the second link information, verification instruction information and the second link information.

In another possible implementation, instruction information is that the first link generates information, and the first link generates information To be calculated according to the first link information and challenge character string, NAS message further includes the information and challenge of accessing gateway equipment Character string；

Then mobile management network element obtains the second link information, comprising: firstly, mobile management network element is according to access gateway The information of equipment, determines accessing gateway equipment；Then, mobile management network element sends request message to accessing gateway equipment, asks Seeking message includes challenge character string；Then, mobile management network element receives the second link information from accessing gateway equipment, the Two link informations and challenge string association.

In another possible implementation, mobile management network element receives the request from accessing gateway equipment and disappears Breath, request message include the second link information and terminal temporary identifier, wherein and terminal temporary identifier is for identifying terminal, then, Mobile management network element establishes the association between the second link information and terminal temporary identifier.

In another possible implementation, instruction information is the first link information；Then mobile management network element obtains Second link information, comprising: mobile management network element obtains the second link information according to terminal temporary identifier.Mobile management Network element verification instruction information and the second link information, comprising: mobile management network element is according to the first link information and the second link Information, verification instruction information and the second link information.

In another possible implementation, mobile management network element receives the request from accessing gateway equipment and disappears Breath, request message include the second link information, challenge character string and terminal temporary identifier, and terminal temporary identifier is for identifying end End, terminal temporary identifier are associated with the second link information；Mobile management network element establish the second link information, challenge character string and Association between terminal temporary identifier.

In one possible implementation, instruction information is that the first link generates information, and the first link generates information and is It is calculated according to the first link information and challenge character string；Then mobile management network element obtains the second link information, comprising: moves Mobility management network element obtains the second link information according to terminal temporary identifier.Mobile management network element verification instruction information and the Two link informations, comprising: firstly, mobile management network element is calculated second according to challenge character string and the second link information Link generates information；Then, mobile management network element generates information according to the first link and the second link generates information, and verification refers to Show information and the second link information.

It is above-mentioned to give a variety of methods that instruction information and the second link information is verified by mobile management network element, it can basis Practical application selects correlation method to implement.

In one possible implementation, mobile management network element sends the session of fixed network side to equipment for radio access network Information.

The third aspect, the application provide a kind of determination method of link information.This method comprises: firstly, terminal is to access Point transmission link information request message, link information request message are used for request link information, and link information is used to indicate The access information of terminal；Then, terminal receives the instruction information from access point, and instruction information is used to indicate link information；So Afterwards, terminal sends non access stratum NAS message to mobile management network element, and NAS message includes instruction information.

In one possible implementation, instruction information is link information；Alternatively, instruction information is that link generates letter Breath, it is to be calculated according to link information and challenge character string that link, which generates information,.

In one possible implementation, terminal sends NAS message to mobile management network element, comprising: terminal passes through The equipment for radio access network of wireless side sends NAS message to mobile management network element；Alternatively, terminal connecing by fixed network side Function Access Gateway equipment sends NAS message to mobile management network element.

In one possible implementation, link information request message further includes terminal temporary identifier, and terminal is temporarily marked Know for identifying terminal.

Fourth aspect, the application provide a kind of determination method of link information.This method comprises: firstly, access gateway is set Standby to receive the request message from mobile management network element, request message includes instruction information, and instruction information is used to indicate first Link information, the first link information are used to indicate the access information of terminal；If accessing gateway equipment verification instruction information and second Link information is correct, then sends the second link information to mobile management network element, and the second link information is in accessing gateway equipment The access information for being used to indicate terminal link information.

The above method verifies instruction information and the second link information by accessing gateway equipment, if verification is correct, Xiang Yidong Property managed network element send the second link information, then mobile management network element is using the second link information as the link information used. So as to improve acquisition link information correctness.

In one possible implementation, instruction information is that the first link generates information, and the first link generates information and is It is calculated according to the first link information and challenge character string, request message further includes terminal temporary identifier, terminal temporary identifier For identifying terminal, terminal temporary identifier is associated with the second link information；If then accessing gateway equipment verification instruction information and the Two link informations are correct, comprising: firstly, accessing gateway equipment determines the second link information and challenge according to terminal temporary identifier Character string；Then, accessing gateway equipment generates the second link and generates information according to the second link information and challenge character string；So Afterwards, to generate information identical if it is determined that the first link generates information and the second link for accessing gateway equipment, then verify instruction information with Second link information is correct.

In another possible implementation, instruction information is the first link information, and request message further includes that terminal is faced When identify, for identifying terminal, terminal temporary identifier is associated with terminal temporary identifier with the second link information；Then accessing gateway equipment If verification instruction information and the second link information are correct, comprising: accessing gateway equipment determines the second chain according to terminal temporary identifier Road information；Accessing gateway equipment then verifies instruction information and second if it is determined that the first link information is identical as the second link information Link information is correct.

In another possible implementation, instruction information is that the first link generates information, and the first link generates information To be calculated according to the first link information and challenge character string, request message further includes challenge character string；Then access gateway is set If standby verification instruction information and the second link information are correct, comprising: firstly, accessing gateway equipment is according to the second link information and chooses War character string is calculated the second link and generates information；Then, accessing gateway equipment is if it is determined that the first link generates information and the Two links generation information is identical, then verifies instruction information and the second link information is correct.

It is above-mentioned to give a variety of methods that instruction information and the second link information is verified by accessing gateway equipment, it can be according to reality Border application selection correlation method is implemented.

5th aspect, the application provide a kind of determination method of link information.This method comprises: firstly, access gateway is set Standby to receive the NAS message for carrying out self terminal, NAS message includes instruction information, and instruction information is used for the first link information, the first link Information is used to indicate the access information of terminal；Then, accessing gateway equipment sends NAS message and second to mobile management network element Link information, the second link information are the link information of the access information for being used to indicate terminal in accessing gateway equipment, instruction Information and the second link information are verified for mobile management network element.

Since accessing gateway equipment will indicate that information and the second link information are sent to mobile management network element, by mobility Managed network element verifies instruction information and the second link information, if verification is correct, using the second link information as use Link information.So as to improve acquisition link information correctness.

In one possible implementation, instruction information is the first link information, then further include: accessing gateway equipment connects The link information request message from access point is received, link information request message includes link identification information, link identification information For identifying the first link information；Accessing gateway equipment determines the first link information according to link identification information；Access gateway is set It is standby to send the first link information to access point.

In one possible implementation, instruction information is that the first link generates information, then further include: access gateway is set Standby to receive the link information request message from access point, link information request message includes link identification information, link identification Information is for identifying the first link information；Then, accessing gateway equipment determines that the first link information is right according to link identification information Afterwards；Accessing gateway equipment is calculated the first link and generates information according to the first link information, challenge character string；Then, it accesses Gateway sends the first link to access point and generates information.

6th aspect, the application provide a kind of device, which can be mobile management network element, be also possible to chip. The device has the function of realizing each embodiment of above-mentioned first aspect.The function can also be passed through by hardware realization Hardware executes corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

7th aspect, the application provide a kind of device, which can be mobile management network element, be also possible to chip. The device has the function of realizing each embodiment of above-mentioned second aspect.The function can also be passed through by hardware realization Hardware executes corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

Eighth aspect, the application provide a kind of device, which can be terminal, are also possible to chip.The device has Realize the function of each embodiment of the above-mentioned third 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.

9th aspect, the application provide a kind of device, which can be accessing gateway equipment, be also possible to chip.It should Device has the function of realizing each embodiment of above-mentioned fourth aspect.The function can be by hardware realization, can also be by hard Part executes corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

Tenth aspect, the application provide a kind of device, which can be accessing gateway equipment, be also possible to chip.It should Device has the function of realizing each embodiment of above-mentioned 5th aspect.The function can be by hardware realization, can also be by hard Part executes corresponding software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

Tenth on the one hand, and the application provides a kind of system, any realization side including above-mentioned 6th aspect or the 6th aspect Device and above-mentioned tenth aspect in formula or the device in any implementation of the tenth aspect.

12nd aspect, the application provide a kind of system, including accessing gateway equipment and above-mentioned 7th aspect or the 7th side Device in any implementation in face, wherein the accessing gateway equipment is used to send the second link information to the device.

13rd aspect, the application provide a kind of system, including mobile management network element and above-mentioned 9th aspect or the 9th Device in any implementation of aspect, wherein mobile management network element, it is described for sending request message to the device Request message includes instruction information, and the instruction information is used to indicate the first link information, and first link information is for referring to Show the access information of terminal；And the second link information from the device is received, second link information is in the device The access information for being used to indicate the terminal link information.

Fourteenth aspect, the application also provide a kind of computer readable storage medium, the computer readable storage medium In be stored with instruction, when run on a computer, so that computer executes method described in above-mentioned various aspects.

15th 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 method described in above-mentioned various aspects.

In addition, the 6th aspect technical effect brought by any design method into the 15th aspect can be found in first party Face technical effect brought by different implementations into the 5th 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 that the application is applicable in；

The alternatively possible network architecture schematic diagram that Fig. 2 is applicable in by the application；

Fig. 3 is a kind of determination method flow diagram of link information provided by the present application；

Fig. 4 is the method flow diagram that terminal provided by the present application obtains the first link information；

Fig. 5 is the method flow diagram that terminal provided by the present application obtains the first link information；

Fig. 6 is the method flow diagram that terminal provided by the present application obtains the first link information；

Fig. 7 is the determination method flow diagram of another link information provided by the present application；

Fig. 8 is the determination method flow diagram of another link information provided by the present application；

Fig. 9 is a kind of schematic device provided by the present application；

Figure 10 is another schematic device provided by the present application；

Figure 11 is another schematic device provided by the present application；

Figure 12 is another schematic device provided by the present application.

Specific embodiment

In order to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application make into One step it is described in detail.Concrete operation method in embodiment of the method also can be applied to Installation practice or system embodiment In.Wherein, in the description of the present application, unless otherwise indicated, the meaning of " plurality " is 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 for the application.The network architecture includes access net Close equipment and mobile management network element.Optionally, the network architecture further includes terminal and access point (Access Node, AN). Optionally, the network architecture further includes equipment for radio access network.

Accessing gateway equipment is the access point that fixed network is linked into core net.Accessing gateway equipment can by N2 interface and The network element of core network control surface, as mobile management network element communicates.Accessing gateway equipment can also be used fixed network by N3 interface The data message (also referred to as fixed network message) at family is sent to network element (such as user plane functions (the user plane in core network user face Function, UPF) network element).

Core net includes user's veil member and control plane network element.User's veil member be mainly responsible for packet data package forwarding, Service quality (Quality of Service, QoS) control, charge information statistics etc..Control plane network element is mainly responsible for user Veil member issues data packet forwarding strategy, QoS control strategy etc..In framework shown in Fig. 1, mobile management network element is core Control plane network element in net.N2 interface communication can be passed through between accessing gateway equipment and mobile management network element.In 5G, figure Mobile management network element shown in 1 can be access and mobile management function to ps domain (Access and Mobility Management Function, AMF) network element.

Terminal, for example including residential gateway (Residential Gateway, RG) etc., RG can specifically include modulatedemodulate Adjust device (modem) etc..Terminal is to support the residential gateway equipment of 5G access.Terminal, which is able to use, eats dishes without rice or wine or the mode of fixed network, Non-Access Stratum (Non Access Stratum, NAS) message is sent to mobile management network element by N1 interface, N1 interface is eventually Interface between end and mobile management network element.

Terminal can also be connect in wired or wireless manner with remote equipment.Wherein, remote equipment, such as can wrap The various handheld devices with wireless communication function are included, mobile unit, wearable device, equipment is calculated or is connected to wireless-modulated Other processing equipments of demodulator；It can also include subscriber unit (subscriber unit), cellular phone (cellular Phone), smart phone (smart phone), wireless data card, personal digital assistant (personal digital server Sistant, PDA) computer, plate computer, radio modem (modem), handheld device (handheld), electricity on knee Brain (laptop computer), wireless phone (cordless phone) or wireless local loop (wireless local Loop, WLL) platform, machine type communication (machine type communication, MTC) terminal, user equipment (user Equipment, UE), mobile station (mobile station, MS), vehicle or terminal device (terminal device) etc..For Facilitate description, in the application, apparatus mentioned above is referred to as remote equipment.

Access point AN, also referred to as super joint (wireline access node, WAN).AN can be by different Access way provides access service for terminal.

It should be noted that the equipment that AN and accessing gateway equipment may be collectively referred to as wired access network, or be referred to as wired Access device.

As shown in Figure 1, in one implementation, terminal can be connect in a wired manner by the equipment of wired access network Enter to core net.In another implementation, terminal can also by wireless access network (Radio Access Network, RAN radio reception device), such as base station are linked into core net in a manner of wireless (or to eat dishes without rice or wine).That is, terminal can be with Idle message is sent to core net.

Radio reception device is a kind of equipment that terminal is linked into wireless network, and in 5G, radio reception device can also With referred to as Radio Access Network (radio access network, RAN) equipment.Radio reception device includes but is not limited to: 5G In (g nodeB, gNB), evolved node B (evolved node B, eNB), radio network controller (radio Network controller, RNC), node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), Home eNodeB are (for example, home evolved NodeB or home node B, HNB), Base Band Unit (BaseBand Unit, BBU), transfer point (transmitting and Receiving point, TRP), launch point (transmitting point, TP), mobile switching centre etc., further, it is also possible to Including Wireless Fidelity (wireless fidelity, wifi) access point (access point, AP) etc..

Mobile management network element, such as can be AMF network element in 5G.Mobile management network element is responsible for access device Access-in management and mobile management comprising mobile management entity (mobility management in network frame in LTE Entity, MME) inner mobile management function to ps domain, and joined access management function.

As one embodiment, accessing gateway equipment, for receiving the NAS message for carrying out self terminal, the NAS message includes Indicate that information, the instruction information are used for the first link information, first link information is used to indicate the access of the terminal Information；The accessing gateway equipment sends the NAS message and the second link information, second chain to mobile management network element Road information is the link information of the access information for being used to indicate the terminal in the accessing gateway equipment, the instruction information It is verified with second link information for the mobile management network element.

Mobile management network element, for receiving non access stratum NAS message and the second link letter from accessing gateway equipment Breath, the NAS message include instruction information, and the instruction information is used to indicate the first link information, first link information It is used to indicate the access information of terminal, second link information is to be used to indicate the terminal in the accessing gateway equipment Access information link information；The mobile management network element verifies the instruction information and second link information.

Optionally, the instruction information is that the first link generates information, and it is according to that first link, which generates information, First link information and challenge character string are calculated；The mobile management network element is for verifying the instruction information and described Second link information, specifically includes: the mobile management network element according to second link information and the challenge character string, The second link is calculated and generates information；The mobile management network element generates information and described first according to second link Link information generates information, verifies the instruction information and second link information.

Optionally, the instruction information is first link information, and the accessing gateway equipment is also used to reception and comes from The link information request message of access point, the link information request message includes link identification information, the link identification letter Breath is for identifying first link information；The accessing gateway equipment determines described first according to the link identification information Link information；The accessing gateway equipment sends first link information to described access point.

Optionally, the instruction information is that the first link generates information, and the accessing gateway equipment is also used to receive and come from The link information request message of access point, the link information request message includes link identification information, the link identification letter Breath is for identifying first link information；The accessing gateway equipment determines described first according to the link identification information Link information；First link is calculated according to first link information, challenge character string in the accessing gateway equipment Generate information；The accessing gateway equipment sends first link to described access point and generates information.

As one embodiment, the accessing gateway equipment is used to send the second link information to mobile management network element.

For receiving the non access stratum NAS message from equipment for radio access network, NAS's mobile management network element disappears Breath includes instruction information, and the instruction information is used to indicate the first link information, and first link information is used to indicate terminal Access information；The mobile management network element obtains the second link information, and second link information is the access gateway The link information of the access information for being used to indicate the terminal in equipment；The mobile management network element verifies the instruction letter Breath and second link information.

Optionally, the instruction information is that the first link generates information, and it is according to that first link, which generates information, First link information and challenge character string are calculated, and the NAS message further includes the information of the accessing gateway equipment；

The mobile management network element specifically includes: the mobile management network element root for obtaining the second link information According to the information of the accessing gateway equipment, the accessing gateway equipment is determined；The mobile management network element is to the access net It closes equipment and sends request message, the request message includes terminal temporary identifier, and the terminal temporary identifier is described for identifying Terminal, the terminal temporary identifier are associated with second link information；The mobile management network element is received to be connect from described Second link information of function Access Gateway equipment；

The mobile management network element verifies the instruction information and second link information, comprising: the mobility Managed network element is calculated the second link and generates information according to second link information and the challenge character string；The shifting Mobility management network element generates information and second link according to first link and generates information, verify the instruction information with Second link information.

As one embodiment, the mobile management network element, for sending request message to the accessing gateway equipment, The request message includes instruction information, and the instruction information is used to indicate the first link information, and first link information is used In the access information of instruction terminal；And receive the second link information from the accessing gateway equipment, second link Information is the link information of the access information for being used to indicate the terminal in the accessing gateway equipment.

Accessing gateway equipment includes instruction for receiving the request message from mobile management network element, the request message Information, the instruction information are used to indicate the first link information, and first link information is used to indicate the access information of terminal； If the accessing gateway equipment verifies the instruction information and the second link information is correct, institute is sent to mobile management network element The second link information is stated, second link information is the access letter for being used to indicate the terminal in the accessing gateway equipment The link information of breath.

Optionally, the instruction information is that the first link generates information, and it is according to that first link, which generates information, First link information and challenge character string are calculated, and the request message further includes terminal temporary identifier, and the terminal is interim For identifying the terminal, the terminal temporary identifier is associated with mark with second link information；The accessing gateway equipment For verifying the instruction information and the second link information, comprising: the accessing gateway equipment according to the terminal temporary identifier, Determine second link information and the challenge character string；The accessing gateway equipment is according to second link information and institute Challenge character string is stated, the second link is generated and generates information；The accessing gateway equipment is if it is determined that first link generates information It is identical as second link generation information, then it verifies the instruction information and the second link information is correct.

As shown in Fig. 2, a kind of network architecture schematic diagram being applicable in by the application.Network element in the network architecture includes Equipment, radio reception device and the core network element of line access.The network architecture shown in Fig. 2 is the network architecture shown in FIG. 1 A kind of concrete application scene.

Wherein, the specific introduction of the equipment of wired access network, radio reception device, mobile management network element, terminal, can before It states to the associated description in system architecture shown in FIG. 1, which is not described herein again.

Accessing gateway equipment in framework shown in FIG. 1 can move the access gateway function in converged network framework for 5G admittedly (Access Gateway Function, AGF) network element etc..In Fig. 2, by taking accessing gateway equipment is AGF network element as an example.

The core network element of Fig. 2 includes control plane network element and user's veil member, and control plane network element includes mobile management network Member (in 5G, mobile management network element can be AMF network element, in figure by taking AMF network element as an example), conversation management functional (session Management function, SMF) network element, policy control functions (policy control function, PCF) network element, mirror Service function (Authentication Server Function, AUSF) network element is weighed, user's veil member includes UPF network element.

For convenience of description, the application is subsequent by AGF network element, AMF network element, SMF network element, PCF network element, AUSF network element, UPF net Member is briefly referred to as AGF, AMF, SMF, PCF, AUSF, UPF.

In Fig. 2, AGF includes AGF control plane (AGF Control Plane, AGF-CP) and AGF user face (AGF User Plane, AGF-UP).AGF-CP is managed AGF-UP, such as issue control to AGF-UP for handling control plane signaling System strategy.AGF-UP is for handling user face data according to the control strategy that AGF-CP is issued.Between AGF-CP and AMF It can be communicated by N2, AGF-UP and UPF pass through N3 interface.N1 interface communication can be passed through between terminal and AMF.UPF and SMF Between can pass through N4 interface communication.N7 interface communication can be passed through between SMF and PCF.N11 can be passed through between AMF and SMF Interface communication.N12 interface communication can be passed through between AMF and AUSF.

The function of each network element of core net in Fig. 2 is introduced separately below.

SMF is responsible for session management, such as the session establishment of user.

PCF is controlled for implementation strategy, is mainly responsible for policy authorization, the generation of QoS and charging regulation, and will accordingly advise UPF is then issued to by SMF, completes the installation of corresponding strategy and rule.

AUSF has the function of authentication service, for the safe anchor point function that terminates (Security Anchor Function, SEAF) the authentication function of network element request.

It should be noted that the interface name between each network element in Fig. 1 and Fig. 2 is an example, specific implementation Middle interface name may be known as other names, and the embodiment of the present application is not especially limited this.

It should be noted that terminal, access point, accessing gateway equipment, mobile management network element in Fig. 1 and Fig. 2 etc. is only It is a name, name does not constitute restriction to equipment itself.In 5G network and the following other networks, terminal, access point, Accessing gateway equipment, mobile management network element are also possible to other names, and the embodiment of the present application is not especially limited this.Example Such as, the terminal is it is also possible to be replaced by terminal device or user equipment etc., and the access point is it is also possible to be replaced by wired connect Access point or fixed network access point etc., the accessing gateway equipment is it is also possible to be replaced by gateway or access gateway function device Deng being described collectively, repeated no more below herein.

Optionally, the access point in Fig. 1, accessing gateway equipment and mobile management network element, can be by an entity device It realizes, can also be realized jointly by multiple entity devices, can also be a logic functional block in an entity device, this Application embodiment is not especially limited this.

It should be noted that the determination method of the link information of the application can be executed by device.The device can be access Chip in gateway or accessing gateway equipment can also be the core in mobile management network element or mobile management network element Piece.

For convenience of description, the application is by taking device is accessing gateway equipment or mobile management network element as an example, to link information Determination method be illustrated, for device be accessing gateway equipment in chip or mobile management network element in chip reality Existing method can refer to the sending method for the fixed network session that device is accessing gateway equipment or mobile management network element specifically It is bright, it is not repeated to introduce.

For convenience of description, the application is AMF with mobile management network element, is said so that accessing gateway equipment is AGF as an example It is bright.

Core net is in the session for creating fixed network, such as the mistake of protocol Data Unit (Protocol Data Unit, PDU) session Cheng Zhong is needed using link information is arrived, and link information is used to indicate the access information of terminal.

Optionally, link information includes the information of AN and the port information that terminal accesses on AN.The information of AN for example may be used Be the title of AN, the mark of AN, AN network between one of the agreement (Internet Protocol, IP) that interconnects or It is a variety of.

As an example it is assumed that AGF accesses AN1 and AN2, there are 2 access interface, respectively access interface 1 and access on AN1 There are 3 access interface, respectively access interface 1, access interface 2 and access interface 3 in port 2 on AN2.What is then managed on AGF is upper Stating access interface can indicate are as follows: AN1+ access interface 1, AN1+ access interface 2, and AN2+ access interface 1, AN2+ access interface 2, AN2+ access interface 3.

Certainly, in practice, the access interface of AN can also can be managed by other way.For example, it is directed to above-mentioned example, Can also be on AGF to above-mentioned 5 port Unified numbers, then the above-mentioned access interface managed on AGF can be expressed as incoming end Mouth 1 ' (indicates AN1+ access interface 1), and access interface 2 ' (indicates AN1+ access interface 2), and access interface 3 ' (indicates AN2+ access Port 1), access interface 4 ' (indicates AN2+ access interface 2), and access interface 5 ' (indicates AN2+ access interface 3).

In the prior art, the method that core net obtains link information are as follows: by AGF by N2 interface, link information is sent To the AMF of core net.There is as mentioned in the background not safe enough in this method.

In addition, there is problems in the prior art: when terminal sends NAS message from wireless side, core net cannot Interface between mobile management network element and radio reception device gets terminal in the link information of fixed network side.

To solve the above problems, this application provides a variety of solutions, 1- attached drawing 2 with reference to the accompanying drawing, to the application The method of offer is specifically described.

It is generated on AN it should be noted that link information can be, is also possible to be stored in AGF or other equipment example On such as Network Management Equipment.

As shown in figure 3, being a kind of determination method of link information provided by the present application, comprising the following steps:

Step 301, terminal sends non access stratum NAS message to AGF, and AGF receives the NAS message for carrying out self terminal.

The NAS message is that terminal is sent to AMF, and specifically, NAS message is sent to by terminal in fixed network side, by AGF AMF.That is, terminal sends NAS message in the lateral AGF of fixed network, AGF does not obtain the content in NAS message, but NAS message is sent out Give AMF.

It include instruction information in the NAS message, instruction information is used to indicate the first link information, and the first link information is used for The access information of instruction terminal.

As a kind of implementation, indicate that information can be the first link information, which is referred to as Plaintext link information.

As another implementation, indicate that information can also be the information being calculated according to the first link information, example Such as, instruction information is that the first link generates information, and it is according to the first link information and challenge character string that the first link, which generates information, It is calculated, which generates information and be referred to as ciphertext link information.For example, by the first link information and challenge Input of the character string as special algorithm, by operation, to obtain a character string, which is that the first link generates Information.

Wherein, when indicate information be the first link information when, as a kind of implementation, the first link information can be by Terminal is acquired from AN, and as another implementation, the first link information is also possible to be acquired by terminal from AGF.

When indicating information is that the first link generates information, the first link generation information, which can be, to be obtained by terminal from AGF It obtains.That is, generating the first link generation information by AGF and being sent to terminal.

The specific implementation of instruction information, subsequent detailed description are obtained for terminal.

Step 302, AGF sends NAS message and the second link information to AMF, and AMF receives NAS message from AGF and the Two link informations.

In the specific implementation, AGF can send NAS message and the second link information to AMF by N2 interface.

Wherein, which is 301 NAS message got from terminal through the above steps.

Second link information is the link information stored in AGF, which is used to indicate the access information of terminal Link information.

Under normal circumstances, the first link information is identical as the second link information.

Under some abnormal conditions, the first link information may not be identical with the second link information.For example, terminal is got The first link information distorted by attacker, then will lead to the first link information may not be identical with the second link information.Compare again Such as, the second link information is distorted by attacker, then also leading to the first link information may not be identical with the second link information.

Step 303, AMF verification instruction information and the second link information.

AMF gets instruction information after receiving NAS message from NAS message, then to instruction information and the second chain Road information is verified.It is specifically described below.

Implementation one, instruction information are the first link information

In the implementation, instruction information is the first link information, then AMF verification instruction information and the second link information, As verify the first link information and the second link information.Specific verification mode are as follows:

If the first link information in NAS message is identical as the second link information that AGF is sent, AMF verifies the first chain Road information and the second link information are correct.

If the first link information in NAS message is different from the second link information that AGF is sent, AMF verifies the first chain Road information and the second link information mistake.Specifically, the concrete reason of the first link information and the second link information mistake is verified, It may be that the first link information is distorted by attacker, it is also possible to which be the second link information is distorted or the two by attacker All it is tampered.

Implementation two, instruction information are that the first link generates information

In the implementation, instruction information is that the first link generates information, and the first link is generated as being believed according to the first link Breath and challenge character string are calculated, then AMF verification instruction information and the second link information, as verify the first link and generate letter Breath and the second link information.Specific verification mode are as follows:

AMF is calculated the second link and generates information, then according to second according to the second link information and challenge character string Link generates information and the first link information generates information, verification instruction information and the second link information.Wherein, it is calculated Two links, which generate challenge character string used in information and are calculated used in the first link generation information, challenges character string It is identical.In the specific implementation, further including challenge character string in the NAS message that above-mentioned steps 301 are sent, then AMF can be from NAS message In get challenge character string.Either, challenge character string 302 is sent to AMF through the above steps from AGF, then AMF can be from AGF gets challenge character string.

If it is identical as the first link generation information in NAS message that the second link being calculated generates information, the school AMF It tests the first link generation information and the second link information is correct.

If it is different from the first link generation information in NAS message that the second link being calculated generates information, the school AMF It tests the first link and generates information and the second link information mistake.Specifically, the first link of verification generates information and the second link letter Cease the concrete reason of mistake, it may be possible to which the first link generates information and distorted by attacker, it is also possible to be the second link information quilt Attacker distorts or the two is all tampered.

By above-mentioned implementation one or implementation two, if AMF verification instruction information and the second link information are correct, AMF by the second link information be determined as using link information, such as used link information when as creation session.

301- step 303 through the above steps, AMF is available to instruction information and the second link information, and to instruction Information and the second link information are verified.If verification is correct, using the second link information as the link information used.To The correctness of the link information of acquisition can be improved.

As a kind of implementation, above-mentioned steps 301- step 303 be can be in the process of endpoint to register to core net It completes.

For example, above-mentioned steps 301 could alternatively be: terminal sends NAS login request message, the NAS registration request to AGF Message is a kind of specific example of the NAS message in above-mentioned steps, and NAS login request message includes instruction information.Above-mentioned step Rapid 302 could alternatively be: AGF sends login request message to AMF, includes above-mentioned NAS registration request in the login request message Message and the second link information, the login request message is for requesting endpoint to register to core net.Above-mentioned steps 303 are kept not Become.

For another example, above-mentioned steps 301- step 303 can also be authenticating in the process of endpoint to register to core net It is completed in journey.

It should be noted that the application completes after verifying and getting correct link information AMF, how to use The link information and without limitation.For example, as an example, AMF can be during creating session, by determining link Information, which is carried in conversation request message, is sent to SMF, by SMF for creating session etc..

Below according to the type of instruction information, the specific implementation that terminal gets instruction information is introduced respectively.

Situation one, instruction information are the first link information

Implementation one, terminal get the first link information from AN

With reference to Fig. 4, the method flow diagram of the first link information is obtained for terminal provided by the present application, comprising the following steps:

Step 401, to AN transmission link information request message, the link information request that AN reception carrys out self terminal disappears terminal Breath.

Wherein, link information request message is used for request link information.

Step 402, AN sends the first link information to terminal, and terminal receives the first link information from AN.

The first link information has been locally stored in AN, then sends the first link information to the terminal.

401- step 402 through the above steps, terminal can get link information from AN.

It should be noted that above-mentioned steps 401- steps 402 can be and complete before endpoint to register to core net, It can be and completed after endpoint to register to core net, the application do not limit this.

Implementation two, terminal get the first link information from AGF

With reference to Fig. 5, the method flow diagram of the first link information is obtained for terminal provided by the present application, comprising the following steps:

Step 501, to AN transmission link information request message, the link information request that AN reception carrys out self terminal disappears terminal Breath.

The step 501 is identical as above-mentioned steps 401, can refer to foregoing description.

Step 502, AN adds link identification information in link information request message.

Wherein, link identification information is for identifying link information, for example, link identification information can be by encapsulation link phase Information composition is closed, is also possible to the mark obtained according to mappings such as user or link informations, such as virtual local Local Area Network (Virtual Local Area Network, VLAN) label (different VLAN tag, for identifying the different AN's under AGF Access interface).

Step 503, AN sends the link information request message for having link identification information to AGF.

It is corresponding can to obtain link identification information according to link identification information after getting link identification information by AGF First link information.

Step 504, AGF sends the first link information to AN, and AN receives the first link information from AGF.

Step 505, AN sends the first link information to terminal, and terminal receives the first link information from AN.

501- step 505 through the above steps, terminal can get the first link information from AGF.

It should be noted that above-mentioned steps 501- steps 505 can be and complete before endpoint to register to core net, It can be and completed after endpoint to register to core net, the application do not limit this.

As a kind of alternative implementation, above-mentioned steps 502 also could alternatively be: AN is in link information request message Add the first link information.Above-mentioned steps 503 are replaced are as follows: AN sends the link information with the first link information to AGF and requests Message.That is the first link information is carried on link information request message by AN, is sent to AGF, and then AGF is requested from link information The first link information is obtained in message, and AN is sent to by step 504.

Situation two, instruction information are that the first link generates information

When indicating information is that the first link generates information, terminal can get the first link from AGF and generate information.Tool Body, with reference to Fig. 6, the method flow diagram that the first link generates information is obtained for terminal provided by the present application, comprising the following steps:

Step 601- step 603, it is identical as above-mentioned steps 501- step 503, it can refer to foregoing description.

Step 604, AGF is calculated the first link and generates information according to the first link information and challenge character string.

Step 605, AGF sends the first link to AN and generates information, and AN receives the first link from AGF and generates information.

Step 606, AN sends the first link to terminal and generates information, and terminal receives the first link from AN and generates letter Breath.

601- step 606 through the above steps, terminal can get the first link from AGF and generate information.

It should be noted that above-mentioned steps 601- steps 606 can be and complete before endpoint to register to core net, It can be and completed after endpoint to register to core net, the application do not limit this.

As a kind of alternative implementation, above-mentioned steps 602 also could alternatively be: AN is in link information request message The first link information is added, and sends the link information request message for having the first link information to AGF.That is AN is by the first link Information is carried on link information request message, is sent to AGF, and then AGF obtains the first link from link information request message Information.

Optionally, challenge character string can also be sent to terminal by AN by AGF.For example, through the above steps 605 and step Rapid 606, challenge character string is sent to terminal.

Optionally, if terminal has been registered to core net, and terminal, which can receive, at this time comes from before executing step 601 The terminal temporary identifier of core net then can also include terminal temporary identifier in the link information request message.To which AGF can To get terminal temporary identifier, and establishes terminal temporary identifier, challenge character string, the first link and generate information, the first link Association between information, the second link information.Wherein, terminal temporary identifier is for identifying terminal.

It to sum up, can be by above-mentioned Fig. 4-method shown in fig. 6, so that terminal gets the first link information or the first chain Road generates information.

It should be noted that embodiment shown in Fig. 3 can be in conjunction with any embodiment in Fig. 4-Fig. 6, as specific Implementation.Also, any embodiment in Fig. 4-Fig. 6 is implemented before being all embodiment shown in Fig. 3.

As shown in fig. 7, being a kind of determination method of link information provided by the present application, comprising the following steps:

Step 701, terminal sends NAS message to RAN equipment, and RAN equipment receives the NAS message for carrying out self terminal.

The NAS message is that terminal is sent to AMF, and specifically, terminal sends out NAS message in wireless side, by RAN equipment Give AMF.That is, terminal sends NAS message in wireless lateral RAN equipment, RAN equipment does not obtain the content in NAS message, but NAS message is sent to AMF.

It include instruction information in the NAS message, instruction information can be the first link information, it is raw to be also possible to the first link At information.

It optionally, can also include challenge character in the NAS message if instruction information is that the first link generates information String.

Step 702, RAN equipment sends NAS message to AMF, and AMF receives the NAS message from RAN equipment.

Instruction information can be carried on by 701- step 702 through the above steps, terminal by the RAN equipment of wireless side AMF is sent in NAS message.

Step 703, AMF obtains the second link information.

By the step 703, AMF is available to the second link information.

Step 704, AMF verification instruction information and the second link information.

In the step 704, the specific implementation of AMF verification instruction information and the second link information, with above-mentioned steps 303 Middle AMF verification instruction information is identical with the mode of the second link information, can refer to foregoing description, which is not described herein again.

Instruction information can be carried on by 701- step 704 through the above steps, terminal by the RAN equipment of wireless side AMF is sent in NAS message, and, AMF can get the second link information from AGF or from local.To which AMF can be right The instruction information and the second link information got is verified.This method is come by combining wireless side and fixed network side It realizes and link information is sent to AMF, be conducive to the flexibility for promoting deployment, registration and conversation establishing etc..

The determination method of link information shown in Fig. 7 exists with the main distinction of the determination method of link information shown in Fig. 3 In: method shown in Fig. 7, terminal are will to indicate that information is carried in NAS message by the RAN equipment of wireless side to be sent to AMF, It and is to get the second link information by AMF from AGF or from local.And method shown in Fig. 3, terminal are by fixed network side AGF will indicate that information is carried in NAS message and be sent to AMF, and is that the second link information is sent to AMF by AGF.

It should be noted that embodiment shown in Fig. 7 can be in conjunction with any embodiment in Fig. 4-Fig. 6, as specific Implementation.Also, any embodiment in Fig. 4-Fig. 6 is implemented before being all embodiment shown in Fig. 7.

For above-mentioned steps 703- step 704, can be specifically described below there are many implementation in concrete practice.

Implementation method one, instruction information are that the first link generates information, and it is according to the first link that the first link, which generates information, Information and challenge character string are calculated, and are indexed by terminal temporary identifier.

According to the implementation method one, then embodiment shown in Fig. 7 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, terminal carried terminal temporary identifier, AGF in the link request message of step 601 establish terminal and temporarily mark Know, the association between challenge character string, the first link generation information, the second link information.

The NAS message of above-mentioned steps 701 specifically includes the first link and generates information, further further includes the information of AGF.

Then above-mentioned steps 703 can specifically be realized by following step:

Step A1, AMF determines AGF according to the information of the AGF in NAS message.

Step A2, AMF sends request message to AGF, and request message includes terminal temporary identifier.

Step A3, AGF is according to terminal temporary identifier, determining and associated second link information of terminal temporary identifier.

Step A4, AGF sends the second link information to AMF.

A1- step A4 through the above steps, AMF send request message to AGF, include that terminal is temporarily marked in request message Know, AGF using terminal temporary identifier as index, got from AGF with associated second link information of terminal temporary identifier, and The second link information that will acquire is sent to AMF, so that AMF is available to the second link information.

It should be noted that if the interface between AMF and AGF creates not yet, then before executing above-mentioned steps 703 Above-mentioned request message can be interface request to create message, and the interface request to create message is for requesting between creation AMF and AGF Interface.It can realize during creating interface and get the second link information from AGF by AMF.

Above-mentioned steps 704 can specifically be realized by following step:

Step B1, AMF is calculated the second link and generates information according to the second link information and challenge character string.

Wherein, the challenge character string that AMF is used as generates the first link and generates challenge character string used in information.

As a kind of implementation, the challenge character string that AMF is used can be A3 through the above steps and step A4 and send To AMF's.Specifically, in above-mentioned steps A3, AGF can also be determining to close with terminal temporary identifier according to terminal temporary identifier The challenge character string of connection.Then in above-mentioned steps A4, while AGF sends the second link information to AMF, challenge word is also sent Symbol string.

As another implementation, the challenge character string that AMF is used can also be and take in the NAS message of step 701 Band, so that AMF is available to challenge character string.

Step B2, AMF generates information according to the first link and the second link generates information, verification instruction information and the second chain Road information.

The concrete methods of realizing of above-mentioned steps B1- step B2, with implementation two-phase described in above-mentioned steps 303 Together, it can refer to foregoing description.

Implementation method two, instruction information are the first link information, are indexed by terminal temporary identifier.

According to the implementation method two, then embodiment shown in Fig. 7 can be made in conjunction with Fig. 4-any embodiment shown in fig. 6 For specific implementation.Also, terminal carried terminal in step 401, step 501, the link request message of step 601 is temporarily marked Know, AGF establishes being associated between terminal temporary identifier and the second link information.

Then above-mentioned steps 703 can specifically be realized by following step:

Step C1, AMF determines AGF according to the first link information in NAS message.

Step C2, AMF sends request message to AGF, and request message includes terminal temporary identifier.

Step C3, AGF is according to terminal temporary identifier, determining and associated second link information of terminal temporary identifier.

Step C4, AGF sends the second link information to AMF.

C1- step C4 through the above steps, AMF send request message to AGF, include that terminal is temporarily marked in request message Know, AGF using terminal temporary identifier as index, got from AGF with associated second link information of terminal temporary identifier, and The second link information that will acquire is sent to AMF, so that AMF is available to the second link information.

Above-mentioned steps 704 can specifically be realized by following step: AMF generates information according to the first link and the second link is raw At information, verification instruction information and the second link information.AMF is according to the first link information and the second link information, verification instruction Information and the second link information.The concrete methods of realizing of the step, with one phase of implementation described in above-mentioned steps 303 Together, it can refer to foregoing description.

Implementation method three, instruction information are that the first link generates information, and it is according to the first link that the first link, which generates information, Information and challenge character string are calculated, by challenging community string index community.

According to the implementation method three, then embodiment shown in Fig. 7 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, terminal not carried terminal temporary identifier in the link request message of step 601.

Then above-mentioned steps 703 can specifically be realized by following step:

Step D1, AMF determines AGF according to the information of the AGF in NAS message.

Step D2, AMF sends request message to AGF, and request message includes challenge character string.

Step D3, AGF determines the second link information with challenge string association according to challenge character string.

Step D4, AGF sends the second link information to AMF.

D1- step D4 through the above steps, AMF send request message to AGF, include challenge character string in request message, AGF will challenge character string as index, the second link information with challenge string association be got from AGF, and will acquire To the second link information be sent to AMF, so that AMF is available to the second link information.

Wherein, the challenge character string that the request message in above-mentioned steps D2 includes as generates the first link and generates information Used challenge character string.

As a kind of implementation, the challenge character string that AMF is used can be and carry in the NAS message of step 701 , so that AMF is available to challenge character string.

Above-mentioned steps 704 can specifically be realized by following step:

Step E1, AMF is calculated the second link and generates information according to the second link information and challenge character string.

Step E2, AMF generates information according to the first link and the second link generates information, verification instruction information and the second chain Road information.

The concrete methods of realizing of above-mentioned steps E1- step E2, with implementation two-phase described in above-mentioned steps 303 Together, it can refer to foregoing description.

Implementation method four, instruction information are that the first link generates information, and it is according to the first link that the first link, which generates information, Information and challenge character string are calculated, and AMF obtains the second link information from local.

According to the implementation method four, then embodiment shown in Fig. 7 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, terminal carried terminal temporary identifier, AGF in the link request message of step 601 establish terminal and temporarily mark Know, the association between challenge character string, the first link generation information, the second link information.

Further, after step 603, further comprising the steps of in process described in Fig. 6:

Step 603A, AGF sends request message to AMF, and AMF receives the request message from AGF.

It wherein, include the second link information, terminal temporary identifier and challenge character string in request message.

Step 603B, AMF establishes the association between the second link information, challenge character string and terminal temporary identifier.

603A- step 603B through the above steps, so that during terminal obtains the first link and generates information, it is also real Show and the second link information, terminal temporary identifier and challenge character string are sent to AMF by AGF, thus, so that AMF establishes the Association between two link informations, challenge character string and terminal temporary identifier.

Also, before realizing process shown in Fig. 7, process and above-mentioned steps 603A- step shown in fig. 6 is first carried out 603B。

It should be noted that if the interface between AMF and AGF creates not yet, then before executing above-mentioned steps 603A Above-mentioned request message can be interface request to create message, and the interface request to create message is for requesting between creation AMF and AGF Interface.It can realize that the second link information, terminal are got from AGF by AMF temporarily marks during creating interface Know and challenge character string.

Then above-mentioned steps 703 can specifically be realized by following step: AMF obtains the second link according to terminal temporary identifier Information.

That is, since 603A- step 603B, AMF have been set up the second link information, challenge character string through the above steps Association between terminal temporary identifier, then AMF directly can get the second link letter from local according to terminal temporary identifier Breath.Further, AMF directly can get challenge character string from local according to terminal temporary identifier.

Above-mentioned steps 704 can specifically be realized by following step:

Step F1, AMF is calculated the second link and generates information according to the second link information and challenge character string.

Step F2, AMF generates information according to the first link and the second link generates information, verification instruction information and the second chain Road information.

The concrete methods of realizing of above-mentioned steps F1- step F2, with implementation two-phase described in above-mentioned steps 303 Together, it can refer to foregoing description.

Implementation method five, instruction information are the first link information, and AMF obtains the second link information from local.

According to the implementation method five, then embodiment shown in Fig. 7 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, terminal carried terminal temporary identifier, AGF in the link request message of step 601 establish terminal and temporarily mark Know, the first link generates information, the association between the first link information, the second link information.

Step 603A ', AGF send request message to AMF, and AMF receives the request message from AGF.

It wherein, include the second link information and terminal temporary identifier in request message.

Step 603B ', AMF establish the association between the second link information and terminal temporary identifier.

603A '-step 603B ' through the above steps, so that during terminal obtains the first link and generates information, also It realizes and the second link information, terminal temporary identifier is sent to AMF by AGF, thus, so that AMF establishes the second link information Association between terminal temporary identifier.

Also, before realizing process shown in Fig. 7, process and above-mentioned steps 603A '-step shown in fig. 6 is first carried out Rapid 603B '.

It should be noted that if the interface between AMF and AGF creates not yet before executing above-mentioned steps 603A ', Then above-mentioned request message can be interface request to create message, the interface request to create message for request creation AMF and AGF it Between interface.It can be during creating interface, it is interim that realization is got the second link information, terminal by AMF from AGF Mark.

That is, AMF has been set up the second link information and terminal is faced due to 603A '-step 603B ' through the above steps When mark between association, then AMF directly can get the second link information from local according to terminal temporary identifier.

Above-mentioned steps 704 can specifically be realized by following step: AMF according to the first link information and the second link information, Verification instruction information and the second link information.The concrete methods of realizing of the step, with realization side described in above-mentioned steps 303 Formula one is identical, can refer to foregoing description.

As shown in figure 8, being the determination method of another link information provided by the present application, comprising the following steps:

Step 801- step 802, it is identical as above-mentioned steps 701- step 702, it can refer to foregoing description.

Instruction information can be carried on by 801- step 802 through the above steps, terminal by the RAN equipment of wireless side AMF is sent in NAS message.Optionally, challenge character string is also sent to AMF.

Step 803, AMF sends request message to AGF, and AGF receives the request message from AMF.

It include instruction information in the request message, which is that the first link information or the first link generate information.

It further include that terminal is faced in the request message when indicating information is the first link information as a kind of implementation When identify.

As another implementation, when indicating information is that the first link generates information, further include in the request message Terminal temporary identifier.

As another implementation, when indicating information is that the first link generates information, further include in the request message Challenge character string.

It is subsequent above-mentioned three kinds of implementations to be specifically described respectively.

It should be noted that if the interface between AMF and AGF creates not yet, then before executing above-mentioned steps 803 Above-mentioned request message can be interface request to create message, and the interface request to create message is for requesting between creation AMF and AGF Interface.

Step 804, AGF verification instruction information and the second link information.

In the step 804, the specific implementation of AGF verification instruction information and the second link information, with above-mentioned steps 303 Middle AMF verification instruction information is identical with the mode of the second link information, can refer to foregoing description, which is not described herein again.

Step 805, if AGF verification instruction information and the second link information are correct, the second link information is sent to AMF.

Instruction information can be carried on by 801- step 805 through the above steps, terminal by the RAN equipment of wireless side AMF is sent in NAS message, and, by AGF in verification instruction information and correct the second link information, the second link is believed Breath is sent to AMF.This method is that link information is sent to AMF to realize, is had by combining wireless side and fixed network side Conducive to the flexibility for promoting deployment, registration and conversation establishing etc..

The determination method of link information shown in Fig. 8 exists with the main distinction of the determination method of link information shown in Fig. 3 In: method shown in Fig. 8, terminal are will to indicate that information is carried in NAS message by the RAN equipment of wireless side to be sent to AMF, It and is to get the second link information from AGF by AMF.And method shown in Fig. 3, terminal will be referred to by the AGF of fixed network side Show that information is carried in NAS message and be sent to AMF, and is that the second link information is sent to AMF by AGF.

The determination method of link information shown in Fig. 8 exists with the main distinction of the determination method of link information shown in Fig. 7 In: method shown in Fig. 8 is to verify instruction information and the second link information by AGF.And method shown in Fig. 7, it is by the school AMF Test instruction information and the second link information.

It should be noted that the application completes to verify for AGF, and after getting correct link information by AMF, such as What uses the link information and without limitation.For example, as an example, AMF can will be determined during creating session Link information be carried in conversation request message and be sent to SMF, by SMF for creating session etc..

It should be noted that embodiment shown in Fig. 8 can be in conjunction with any embodiment in Fig. 4-Fig. 6, as specific Implementation.Also, any embodiment in Fig. 4-Fig. 6 is implemented before being all embodiment shown in Fig. 8.

For above-mentioned steps 803- step 804, can be specifically described below there are many implementation in concrete practice.

Implementation method one, instruction information are that the first link generates information, and it is according to the first link that the first link, which generates information, Information and challenge character string are calculated, and the request message of step 803 includes that the first link generates information and terminal temporary identifier.

According to the implementation method one, then embodiment shown in Fig. 8 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, terminal carried terminal temporary identifier, AGF in the link request message of step 601 establish terminal and temporarily mark Know, the association between challenge character string, the first link generation information, the second link information.

The NAS message of above-mentioned steps 801 specifically includes the first link and generates information, further further includes the information of AGF.

Then above-mentioned steps 803 can specifically be realized by following step: AMF is determined according to the information of the AGF in NAS message AGF, AMF send request message to AGF, and request message includes that the first link generates information and terminal temporary identifier.

Above-mentioned steps 804 can specifically be realized by following step:

Step H1, AGF determines the second link information and challenge character string according to terminal temporary identifier.

Step H2, AGF generates the second link and generates information according to the second link information and challenge character string.

Step H3, AGF if it is determined that the first link to generate information and the second link generation information identical, then verify instruction information It is correct with the second link information.

The concrete methods of realizing of above-mentioned steps H2- step H3, the school with the AMF in the implementation two of above-mentioned steps 303 Proved recipe method is identical, can refer to foregoing description.

Implementation method two, instruction information are that the first link generates information, and it is according to the first link that the first link, which generates information, Information and challenge character string are calculated, and the request message of step 803 includes that the first link generates information and challenge character string.

According to the implementation method two, then embodiment shown in Fig. 8 can embodiment as shown in connection with fig. 6 as a kind of tool Body is realized.Also, carried terminal temporary identifier, AGF do not establish challenge character to terminal in the link request message of step 601 String, the first link generate the association between information, the second link information.

Then above-mentioned steps 803 can specifically be realized by following step: AMF is determined according to the information of the AGF in NAS message AGF, AMF send request message to AGF, and request message includes that the first link generates information and challenge character string.

Above-mentioned steps 804 can specifically be realized by following step:

Step I1, AGF determines the second link information according to challenge character string.

Step I2, AGF generates the second link and generates information according to the second link information and challenge character string.

Step I3, AGF if it is determined that the first link to generate information and the second link generation information identical, then verify instruction information It is correct with the second link information.

The concrete methods of realizing of above-mentioned steps I2- step I3, the school with the AMF in the implementation two of above-mentioned steps 303 Proved recipe method is identical, can refer to foregoing description.

Implementation method three, instruction information are the first link information, the request message of step 803 include the first link information and Terminal temporary identifier.

According to the implementation method three, then embodiment shown in Fig. 8 can be in conjunction with Fig. 4-embodiment shown in fig. 6 as one Kind specific implementation.Also, terminal carried terminal in the link request message of step 401, step 501 or step 601 is temporarily marked Know, AGF establishes the association between terminal temporary identifier, the second link information.

Then above-mentioned steps 803 can specifically be realized by following step: AMF is according to the first link information in NAS message, really Determine AGF, AMF sends request message to AGF, and request message includes the first link information and terminal temporary identifier.

Above-mentioned steps 804 can specifically be realized by following step:

Step J1, AGF determines the second link information according to terminal temporary identifier.

Step J2, AGF then verifies instruction information and the second chain if it is determined that the first link information is identical as the second link information Road information is correct.

The method of calibration phase of AMF in the concrete methods of realizing of above-mentioned steps J2, with the implementation one of above-mentioned steps 303 Together, it can refer to foregoing description.

As a specific implementation manner, Fig. 7 or process shown in Fig. 8, can be and create between terminal and core net Build session, such as completed in creation PDU conversation procedure.Specifically, fixed network side can be created by the RAN equipment of wireless side Session.

As another implementation, it can be before creating session between terminal and core net, Fig. 6 executed by AMF The step of and execute step 603A, step 603B, or execute Fig. 6 the step of and execute step 603A ', step 603B ' then executes Fig. 7 or process shown in Fig. 8 during creating session.

Further, after the creation that core net completes fixed network session, then AMF also sends conversation establishing to RAN equipment Message is completed, optionally, AMF also sends fixed network side session information to RAN equipment, i.e., the session information of fixed network side is sent to nothing The RAN equipment of line side.

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.

Based on identical inventive concept, as shown in figure 9, being a kind of schematic device provided by the present application, which can be with It is terminal, accessing gateway equipment, mobile management network element or chip, the method that any of the above-described embodiment can be performed.

The device 900 includes at least one processor 901, communication line 902, memory 903 and at least one communication Interface 904.

Processor 901 can be a general central processor (central processing unit, CPU), micro process Device, application-specific integrated circuit (application-specific integrated circuit, server I C) or one Or it is multiple for controlling the integrated circuit of application scheme program execution.

Communication line 902 may include an access, and information is transmitted between said modules.

Communication interface 904, using the device of any transceiver one kind, for other equipment or communication, such as Ethernet, wireless access network (radio access network, RAN), WLAN (wireless local area Networks, WLAN) etc..

Memory 903 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 letter can be stored The other kinds of dynamic memory of breath and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (electrically Er server able 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, number General optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or storing tool There is the desired program code of instruction or data structure form and can be by any other medium of computer access, but is not limited to This.Memory, which can be, to be individually present, and is connected by communication line 902 with processor.Memory can also be with processor collection At together.

Wherein, memory 903 be used for store execution application scheme computer executed instructions, and by processor 901 Control executes.Processor 901 is for executing the computer executed instructions stored in memory 903, to realize that the application is following The determination method for the link information that embodiment provides.

Optionally, the computer executed instructions in the embodiment of the present application can also be referred to as application code, the application Embodiment is not especially limited this.

In the concrete realization, as one embodiment, processor 901 may include one or more CPU, such as in Fig. 9 CPU0 and CPU1.

In the concrete realization, as one embodiment, device 900 may include multiple processors, such as the processing in Fig. 9 Device 901 and processor 908.Each of these processors can be monokaryon (single-CPU) processor, can also be with It is multicore (multi-CPU) processor.Here processor can refer to one or more equipment, circuit, and/or for locating Manage the processing core of data (such as computer program instructions).

In the concrete realization, as one embodiment, device 900 can also include output equipment 905 and input equipment 906.Output equipment 905 and processor 901 communicate, and can show information in many ways.For example, output equipment 905 can be with It is liquid crystal display (liquid crystal display, LCD), Light-Emitting Diode (light emitting diode, LED) Show equipment, cathode-ray tube (cathode ray tube, CRT) shows equipment or projector (projector) etc..Input Equipment 906 and processor 901 communicate, and can receive the input of user in many ways.For example, input equipment 906 can be mouse Mark, keyboard, touch panel device or sensing equipment etc..

Above-mentioned device 900 can be a common apparatus either special equipment.In the concrete realization, device 900 can be desktop computer, portable computer, network server, palm PC (personal digital server sistant, PDA), cell phone, tablet computer, wireless terminal device, embedded device or the equipment for having similar structures in Fig. 9.The application Embodiment does not limit the type of device 900.

When device shown in Fig. 9 is chip, such as it can be the chip of terminal, the chip of accessing gateway equipment or movement Property managed network element chip, then the chip include processor 901 (can also include processor 908), communication line 902, storage Device 903 and communication interface 904.Specifically, communication interface 904 can be input interface, pin or circuit etc..Memory 903 can To be register, caching etc..Processor 901 and processor 908 can be a general CPU, microprocessor, ASIC or one The integrated circuit that a or multiple programs for controlling the determination method of the link information of any of the above-described embodiment execute.

The application can carry out the division of functional module according to above method example to device, for example, can correspond to each Two or more functions can also be integrated in a processing module by each functional module of function division.Above-mentioned collection At module both can take the form of hardware realization, can also be realized in the form of software function module.It needs to illustrate Being is schematically in addition only a kind of logical function partition can have in actual implementation to the division of module in the application Division mode.For example, Figure 10 shows a kind of device in the case where each function division of use correspondence each functional module Schematic diagram, the device 1000 can be mobile management network element involved in above-described embodiment, which includes receiving Unit 1001 and processing unit 1003.It optionally, further include transmission unit 1002.

In a kind of specific embodiment:

Receiving unit 1001, for receiving non access stratum NAS message and the second link information from accessing gateway equipment, NAS message includes instruction information, and instruction information is used to indicate the first link information, and the first link information is used to indicate connecing for terminal Enter information, the second link information is the link information of the access information for being used to indicate terminal in accessing gateway equipment；

Processing unit 1003, for verifying instruction information and the second link information.

In a kind of concrete implementation, instruction information is that the first link generates information, and the first link generates according to information First link information and challenge character string are calculated；

Processing unit 1003, is specifically used for:

According to the second link information and challenge character string, the second link is calculated and generates information；

Information is generated according to the second link and the first link information generates information, verification instruction information and the second link letter Breath.

In another specific embodiment:

Receiving unit 1001, for receiving the non access stratum NAS message from equipment for radio access network, NAS message packet Instruction information is included, instruction information is used to indicate the first link information, and the first link information is used to indicate the access information of terminal；

Processing unit 1003, for obtaining the second link information, the second link information is to be used in accessing gateway equipment The link information of the access information of instruction terminal；And for verifying instruction information and the second link information.

In a kind of concrete implementation, instruction information is that the first link generates information, and the first link generates according to information First link information and challenge character string are calculated, and NAS message further includes the information of accessing gateway equipment；Processing unit 1003, for obtaining the second link information, specifically includes: according to the information of accessing gateway equipment, determining accessing gateway equipment；It is logical It crosses transmission unit 1002 and sends request message to accessing gateway equipment, request message includes terminal temporary identifier, and terminal is temporarily marked Know for identifying terminal, terminal temporary identifier is associated with the second link information；It is received by receiving unit 1001 from access net Close the second link information of equipment；

Processing unit 1003 specifically includes: for verifying instruction information and the second link information according to the second link information With challenge character string, the second link is calculated and generates information；Information is generated according to the first link and the second link generates information, Verification instruction information and the second link information.

In a kind of concrete implementation, instruction information is the first link information；Processing unit 1003, for obtaining the second chain Road information, specifically includes: according to the first link information, determining accessing gateway equipment；And by transmission unit 1002 to access Gateway sends request message, and request message includes terminal temporary identifier, and terminal temporary identifier for identifying terminal, face by terminal When mark be associated with the second link information；

The second link information from accessing gateway equipment is received by receiving unit 1001；

Processing unit 1003 indicates information and the second link information for verifying, specifically includes:

According to the first link information and the second link information, verification instruction information and the second link information.

In a kind of concrete implementation, instruction information is that the first link generates information, and the first link generates according to information First link information and challenge character string are calculated, and NAS message further includes the information and challenge character string of accessing gateway equipment； Processing unit 1003 specifically includes for obtaining the second link information: according to the information of accessing gateway equipment, determining access net Close equipment；And for sending request message to accessing gateway equipment by transmission unit 1002, request message includes challenge word Symbol string；

The second link information from accessing gateway equipment, the second link information and challenge are received by receiving unit 1001 String association；

Information is generated according to the first link and the second link generates information, verification instruction information and the second link information.

In a kind of concrete implementation, receiving unit 1001 is also used to receive the request message from accessing gateway equipment, Request message includes the second link information and terminal temporary identifier, and terminal temporary identifier is for identifying terminal, terminal temporary identifier It is associated with the second link information；

Processing unit 1003 is also used to establish the association between the second link information and terminal temporary identifier.

In a kind of concrete implementation, instruction information is the first link information；

Processing unit 1003 is specifically included for the second link information of acquisition:

According to terminal temporary identifier, the second link information is obtained；

In a kind of concrete implementation, receiving unit 1001 is also used to receive the request message from accessing gateway equipment, Request message includes the second link information, challenge character string and terminal temporary identifier, and terminal temporary identifier is for identifying terminal, eventually End temporary identifier is associated with the second link information；

Processing unit 1003 is also used to establish the pass between the second link information, challenge character string and terminal temporary identifier Connection.

According to challenge character string and the second link information, the second link is calculated and generates information；

In a kind of concrete implementation, transmission unit 1002, for sending the session of fixed network side to equipment for radio access network Information.

It should be understood that the device can be used to implement the step executed in the method for the embodiment of the present invention by mobile management network element Suddenly, correlated characteristic is referred to above, and details are not described herein again.

Specifically, function/realization of receiving unit 1001, processing unit 1003 and transmission unit 1002 in Figure 10 Process can call the computer executed instructions stored in memory 903 to realize by the processor 901 in Fig. 9.Alternatively, figure The function of processing unit 1003 in 10/realization process can be called in memory 903 by the processor 901 in Fig. 9 and be stored Computer executed instructions realize that function/realization process of receiving unit 1001 and transmission unit 1002 in Figure 10 can be with It is realized by the communication interface 904 in Fig. 9.

Optionally, when the device 1000 is chip, then the function of receiving unit 1001 and transmission unit 1002/realized Journey can also be realized by pin or circuit etc..Optionally, when the device 1000 is chip, memory 903 can be core Storage unit in piece, such as register, caching.Certainly, when the device 1000 is mobile management network element, memory 903 It can be the storage unit positioned at chip exterior in mobile management network element, the embodiment of the present application is not especially limited this.

The application can carry out the division of functional module according to above method example to device, for example, can correspond to each Two or more functions can also be integrated in a processing module by each functional module of function division.Above-mentioned collection At module both can take the form of hardware realization, can also be realized in the form of software function module.It needs to illustrate Being is schematically in addition only a kind of logical function partition can have in actual implementation to the division of module in the application Division mode.For example, Figure 11 shows a kind of device in the case where each function division of use correspondence each functional module Schematic diagram, the device 1100 can be terminal involved in above-described embodiment, which includes 1101 He of receiving unit Transmission unit 1102.It optionally, further include processing unit 1103.

Transmission unit 1102, for access point transmission link information request message, link information request message to be for asking Acquisition link information is sought, link information is used to indicate the access information of terminal；And it is non-for being sent to mobile management network element Access layer NAS message, NAS message include instruction information, and instruction information is used to indicate link information；

Receiving unit 1101, for receiving the instruction information from access point.

In a kind of concrete implementation, instruction information is link information；Alternatively,

Indicate that information is that link generates information, it is to calculate according to link information and challenge character string that link, which generates information, It arrives.

In a kind of concrete implementation, transmission unit 1102 is specifically used for:

By the equipment for radio access network of wireless side, NAS message is sent to mobile management network element；Alternatively,

By the accessing gateway equipment of fixed network side, NAS message is sent to mobile management network element.

In a kind of concrete implementation, link information request message further includes terminal temporary identifier, and terminal temporary identifier is used In mark terminal.

It should be understood that the device can be used to implement the step of being executed in the method for the embodiment of the present invention by terminal, it is related special Sign is referred to above, and details are not described herein again.

Specifically, function/realization process of receiving unit 1101, transmission unit 1102 and processing unit 1103 in Figure 11 The computer executed instructions stored in memory 903 can be called to realize by the processor 901 in Fig. 9.Alternatively, in Figure 11 Function/realization process of processing unit 1103 meter that stores in memory 903 can be called by the processor 901 in Fig. 9 Calculation machine executes instruction to realize, function/realization process of receiving unit 1101 and transmission unit 1102 in Figure 11 can pass through Communication interface 904 in Fig. 9 is realized.

Optionally, when the device 1100 is chip, then the function of receiving unit 1101 and transmission unit 1102/realized Journey can also be realized by pin or circuit etc..Optionally, when the device 1100 is chip, memory 903 can be core Storage unit in piece, such as register, caching.Certainly, when the device 1100 is terminal, memory 903 can be terminal The interior storage unit positioned at chip exterior, the embodiment of the present application are not especially limited this.

The application can carry out the division of functional module according to above method example to device, for example, can correspond to each Two or more functions can also be integrated in a processing module by each functional module of function division.Above-mentioned collection At module both can take the form of hardware realization, can also be realized in the form of software function module.It needs to illustrate Being is schematically in addition only a kind of logical function partition can have in actual implementation to the division of module in the application Division mode.For example, Figure 12 shows a kind of device in the case where each function division of use correspondence each functional module Schematic diagram, the device 1200 can be accessing gateway equipment involved in above-described embodiment, which includes receiving list Member 1201, transmission unit 1202 and processing unit 1203.

In a kind of specific embodiment:

Receiving unit 1201, for receiving the request message from mobile management network element, request message includes instruction letter Breath, instruction information are used to indicate the first link information, and the first link information is used to indicate the access information of terminal；

Processing unit 1203 is set for verifying instruction information and the second link information, the second link information for access gateway The link information of the access information for being used to indicate terminal in standby；

Transmission unit 1202, if correct for verifying instruction information and the second link information, to mobile management network element Send the second link information.

In a kind of concrete implementation, instruction information is that the first link generates information, and the first link generates according to information First link information and challenge character string are calculated, and request message further includes terminal temporary identifier, and terminal temporary identifier is used for Terminal is identified, terminal temporary identifier is associated with the second link information；

Processing unit 1203, is specifically used for:

According to terminal temporary identifier, the second link information and challenge character string are determined；

According to the second link information and challenge character string, generates the second link and generate information；

If it is determined that the first link generation information is identical as the second link generation information, then instruction information and the second link are verified Information is correct.

In a kind of concrete implementation, instruction information is the first link information, and request message further includes terminal temporary identifier, For identifying terminal, terminal temporary identifier is associated with terminal temporary identifier with the second link information；

Processing unit 1203, is specifically used for:

According to terminal temporary identifier, the second link information is determined；

If it is determined that the first link information is identical as the second link information, then instruction information and the second link information are being verified just Really.

In a kind of concrete implementation, instruction information is that the first link generates information, and the first link generates according to information First link information and challenge character string are calculated, and request message further includes challenge character string；Processing unit 1203, it is specific to use In:

According to the second link information and challenge character string, the second link is calculated and generates information；If it is determined that the first link It is identical as the second link generation information to generate information, then verifies instruction information and the second link information is correct.

In another specific embodiment:

Receiving unit 1201, for receiving the NAS message for carrying out self terminal, NAS message includes instruction information, and instruction information is used In the first link information, the first link information is used to indicate the access information of terminal；

Transmission unit 1202, for sending NAS message and the second link information, the second link letter to mobile management network element Breath is the link information of the access information for being used to indicate terminal in accessing gateway equipment, indicates that information and the second link information are used It is verified in mobile management network element.

In a kind of concrete implementation, instruction information is the first link information, and receiving unit 1201 is also used to reception and comes from The link information request message of access point, link information request message include link identification information, and link identification information is for marking Know the first link information；

Processing unit 1203, for determining the first link information according to link identification information；

Transmission unit 1202 is also used to send the first link information to access point.

In a kind of concrete implementation, instruction information is that the first link generates information, and receiving unit 1201 is also used to receive Link information request message from access point, link information request message include link identification information, and link identification information is used In identifying the first link information；

Processing unit 1203, for determining the first link information according to link identification information；And for according to first Link information, challenge character string, are calculated the first link and generate information；

Transmission unit 1202 is also used to send the first link generation information to access point.

It should be understood that the device can be used to implement the step executed in the method for the embodiment of the present invention by accessing gateway equipment Suddenly, correlated characteristic is referred to above, and details are not described herein again.

Specifically, function/realization process of receiving unit 1201, transmission unit 1202 and processing unit 1203 in Figure 12 The computer executed instructions stored in memory 903 can be called to realize by the processor 901 in Fig. 9.Alternatively, in Figure 12 Function/realization process of processing unit 1203 meter that stores in memory 903 can be called by the processor 901 in Fig. 9 Calculation machine executes instruction to realize, function/realization process of receiving unit 1201 and transmission unit 1202 in Figure 12 can pass through Communication interface 904 in Fig. 9 is realized.

Optionally, when the device 1200 is chip, then the function of receiving unit 1201 and transmission unit 1202/realized Journey can also be realized by pin or circuit etc..Optionally, when the device 1200 is chip, memory 903 can be core Storage unit in piece, such as register, caching.Certainly, when the device 1200 is accessing gateway equipment, memory 903 can To be the storage unit positioned at chip exterior in accessing gateway equipment, the embodiment of the present application is not especially limited this.

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 determination method of link information characterized by comprising

Mobile management network element receives non access stratum NAS message and the second link information from accessing gateway equipment, the NAS Message includes instruction information, and the instruction information is used to indicate the first link information, and first link information is used to indicate end The access information at end, second link information are the access information for being used to indicate the terminal in the accessing gateway equipment Link information；

The mobile management network element verifies the instruction information and second link information.

2. the method according to claim 1, wherein the instruction information be the first link generate information, it is described It is to be calculated according to first link information and challenge character string that first link, which generates information,；

The mobile management network element verifies the instruction information and second link information, comprising:

It is raw that the second link is calculated according to second link information and the challenge character string in the mobile management network element At information；

The mobile management network element generates information according to second link and first link information generates information, verification The instruction information and second link information.

3. a kind of determination method of link information characterized by comprising

Mobile management network element receives the non access stratum NAS message from equipment for radio access network, and the NAS message includes referring to Show that information, the instruction information are used to indicate the first link information, first link information is used to indicate the access letter of terminal Breath；

The mobile management network element obtains the second link information, and second link information is to be used in accessing gateway equipment Indicate the link information of the access information of the terminal；

4. according to the method described in claim 3, it is characterized in that, the instruction information be the first link generate information, it is described It is to be calculated according to first link information and challenge character string that first link, which generates information, and the NAS message further includes The information of the accessing gateway equipment；

The mobile management network element obtains the second link information, comprising:

The mobile management network element determines the accessing gateway equipment according to the information of the accessing gateway equipment；

The mobile management network element sends request message to the accessing gateway equipment, and the request message includes that terminal is interim Mark, the terminal temporary identifier are associated with second link information；

The mobile management network element receives second link information from the accessing gateway equipment；

The mobile management network element generates information and second link according to first link and generates information, described in verification Indicate information and second link information.

5. according to the method described in claim 3, it is characterized in that, the instruction information is first link information；

The mobile management network element determines the accessing gateway equipment according to first link information；

The mobile management network element verifies the instruction information according to first link information and second link information With second link information.

6. according to the method described in claim 3, it is characterized in that, the instruction information be the first link generate information, it is described It is to be calculated according to first link information and challenge character string that first link, which generates information, and the NAS message further includes The information of the accessing gateway equipment and the challenge character string；

The mobile management network element sends request message to the accessing gateway equipment, and the request message includes the challenge Character string；

The mobile management network element receives second link information from the accessing gateway equipment, second link Information and the challenge string association；

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

The mobile management network element receives the request message from the accessing gateway equipment, and the request message includes described Second link information and terminal temporary identifier；

The mobile management network element establishes the association between second link information and the terminal temporary identifier.

8. the method according to the description of claim 7 is characterized in that the instruction information is first link information；

The mobile management network element obtains the second link information, comprising: the mobile management network element faces according to the terminal When identify, obtain second link information；

The mobile management network element verifies the instruction information and second link information, comprising: the mobile management Network element verifies the instruction information and second link letter according to first link information and second link information Breath.

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

The mobile management network element receives the request message from the accessing gateway equipment, and the request message includes described Second link information, challenge character string and terminal temporary identifier；

The mobile management network element is established between second link information, challenge character string and the terminal temporary identifier Association.

10. according to the method described in claim 9, it is characterized in that, the instruction information be first link generate information, It is to be calculated according to first link information and the challenge character string that first link, which generates information,；

The mobile management network element verifies the instruction information and second link information, comprising: the mobile management Network element is calculated the second link and generates information according to the challenge character string and second link information；

11. a kind of determination method of link information characterized by comprising

Terminal is believed to access point transmission link information request message, the link information request message for request link Breath, the link information are used to indicate the access information of the terminal；

The terminal receives the instruction information from described access point, and the instruction information is used to indicate the link information；

The terminal sends non access stratum NAS message to mobile management network element, and the NAS message includes the instruction information.

12. according to the method for claim 11, which is characterized in that the instruction information is the link information；Alternatively,

The instruction information is that link generates information, and it is according to the link information and challenge character string that the link, which generates information, It is calculated.

13. method according to claim 11 or 12, which is characterized in that the terminal is sent to mobile management network element NAS message, comprising:

Equipment for radio access network of the terminal by wireless side, the Xiang Suoshu mobile management network element transmission NAS message； Alternatively,

The terminal passes through the accessing gateway equipment of fixed network side, and Xiang Suoshu mobile management network element sends the NAS message.

14. a kind of determination method of link information characterized by comprising

Accessing gateway equipment receives the request message from mobile management network element, and the request message includes instruction information, institute It states instruction information and is used to indicate the first link information, first link information is used to indicate the access information of terminal；

If the accessing gateway equipment verifies the instruction information and the second link information is correct, sent out to mobile management network element Second link information is sent, second link information is to be used to indicate connecing for the terminal in the accessing gateway equipment Enter the link information of information.

15. according to the method for claim 14, which is characterized in that the instruction information is that the first link generates information, institute Stating the first link and generating information is to be calculated according to first link information and challenge character string, and the request message also wraps Terminal temporary identifier is included, the terminal temporary identifier is associated with second link information；

If the accessing gateway equipment verifies the instruction information and the second link information is correct, comprising:

The accessing gateway equipment determines second link information and the challenge character according to the terminal temporary identifier String；

The accessing gateway equipment generates the second link and generates letter according to second link information and the challenge character string Breath；

The accessing gateway equipment if it is determined that first link to generate information and second link generation information identical, then school It tests the instruction information and the second link information is correct.

16. according to the method for claim 14, which is characterized in that the instruction information is first link information, institute Stating request message further includes terminal temporary identifier, and the terminal temporary identifier is associated with second link information；

The accessing gateway equipment determines second link information according to the terminal temporary identifier；

The accessing gateway equipment then verifies the finger if it is determined that first link information is identical as second link information Show that information and the second link information are correct.

17. according to the method for claim 14, which is characterized in that the instruction information is that the first link generates information, institute Stating the first link and generating information is to be calculated according to first link information and challenge character string, and the request message also wraps Include the challenge character string；

The generation of the second link is calculated according to second link information and the challenge character string in the accessing gateway equipment Information；

18. a kind of device, which is characterized in that including receiving unit and processing unit；

The receiving unit, it is described for receiving non access stratum NAS message and the second link information from accessing gateway equipment NAS message includes instruction information, and the instruction information is used to indicate the first link information, and first link information is used to indicate The access information of terminal, second link information are the access letter for being used to indicate the terminal in the accessing gateway equipment The link information of breath；

The processing unit, for verifying the instruction information and second link information.

19. device according to claim 18, which is characterized in that the instruction information is that the first link generates information, institute Stating the first link and generating information is to be calculated according to first link information and challenge character string；

The processing unit, is specifically used for:

According to second link information and the challenge character string, the second link is calculated and generates information；

Information and first link information are generated according to second link and generates information, verify the instruction information and described Second link information.

20. a kind of device, which is characterized in that including receiving unit and processing unit；

The receiving unit, for receiving the non access stratum NAS message from equipment for radio access network, the NAS message packet Instruction information is included, the instruction information is used to indicate the first link information, and first link information is used to indicate connecing for terminal Enter information；

The processing unit, for obtaining the second link information, second link information is in the accessing gateway equipment It is used to indicate the link information of the access information of the terminal；And for verifying the instruction information and second link Information.

21. device according to claim 20, which is characterized in that the instruction information is that the first link generates information, institute Stating the first link and generating information is to be calculated according to first link information and challenge character string, and the NAS message is also wrapped Include the information of the accessing gateway equipment；Described device further includes transmission unit；

The processing unit is specifically included for the second link information of acquisition:

According to the information of the accessing gateway equipment, the accessing gateway equipment is determined；

Request message is sent to the accessing gateway equipment by the transmission unit, the request message includes that terminal is temporarily marked Know, the terminal temporary identifier is associated with second link information；

Second link information from the accessing gateway equipment is received by the receiving unit；

The processing unit is specifically included for verifying the instruction information and second link information:

Information is generated according to first link and second link generates information, verifies the instruction information and described second Link information.

22. a kind of device, which is characterized in that including transmission unit and receiving unit；

The transmission unit, for access point transmission link information request message, the link information request message to be for asking Acquisition link information is sought, the link information is used to indicate the access information of the terminal；And it is used for mobile management network Member sends non access stratum NAS message, and the NAS message includes instruction information, and the instruction information is used to indicate the link letter Breath；

The receiving unit, for receiving the instruction information from described access point.

23. device according to claim 22, which is characterized in that the instruction information is the link information；Alternatively,

24. the device according to claim 22 or 23, which is characterized in that the transmission unit is specifically used for:

By the equipment for radio access network of wireless side, Xiang Suoshu mobile management network element sends the NAS message；Alternatively,

By the accessing gateway equipment of fixed network side, Xiang Suoshu mobile management network element sends the NAS message.

25. a kind of device, which is characterized in that including receiving unit, transmission unit and processing unit；

The receiving unit, for receiving the request message from mobile management network element, the request message includes instruction letter Breath, the instruction information are used to indicate the first link information, and first link information is used to indicate the access information of terminal；

The processing unit, for verifying the instruction information and the second link information, second link information is described connects The link information of the access information for being used to indicate the terminal in function Access Gateway equipment；

The transmission unit, if correct for verifying the instruction information and the second link information, to mobile management network element Send second link information.

26. device according to claim 25, which is characterized in that the instruction information is that the first link generates information, institute Stating the first link and generating information is to be calculated according to first link information and challenge character string, and the request message also wraps Terminal temporary identifier is included, the terminal temporary identifier is associated with second link information；

The processing unit, is specifically used for:

According to the terminal temporary identifier, second link information and the challenge character string are determined；

According to second link information and the challenge character string, generates the second link and generate information；

If it is determined that first link generates information and second link, to generate information identical, then verify the instruction information with Second link information is correct.

27. a kind of device, which is characterized in that including receiving unit and transmission unit；

The receiving unit, for receiving the NAS message for carrying out self terminal, the NAS message includes instruction information, the instruction letter Breath is used for the first link information, and first link information is used to indicate the access information of the terminal；

The transmission unit, for sending the NAS message and the second link information, second chain to mobile management network element Road information is the link information of the access information for being used to indicate the terminal in the accessing gateway equipment, the instruction information It is verified with second link information for the mobile management network element.

28. device according to claim 27, which is characterized in that the instruction information is first link information, institute Stating device further includes processing unit；

The receiving unit is also used to receive the link information request message from access point, the link information request message Including link identification information, the link identification information is for identifying first link information；

The processing unit, for determining first link information according to the link identification information；

The transmission unit is also used to send first link information to described access point.

29. device according to claim 27, which is characterized in that the instruction information is that the first link generates information, institute Stating device further includes processing unit；

The processing unit, for determining first link information according to the link identification information；And it is used for basis First link information, challenge character string, are calculated first link and generate information；

The transmission unit is also used to send the first link generation information to described access point.

30. a kind of system, which is characterized in that including device described in accessing gateway equipment and claim 20 or 21；

The accessing gateway equipment is used to send the second link information to described device.

31. a kind of system, which is characterized in that including device described in mobile management network element and claim 25 or 26；

The mobile management network element, for sending request message to described device, the request message includes instruction information, institute It states instruction information and is used to indicate the first link information, first link information is used to indicate the access information of terminal；And it connects The second link information from described device is received, second link information is to be used to indicate the terminal in described device The link information of access information.