CN110266826A

CN110266826A - Address management method, equipment and system

Info

Publication number: CN110266826A
Application number: CN201810201012.9A
Authority: CN
Inventors: 孙德奎
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2019-09-20
Anticipated expiration: 2038-03-12
Also published as: WO2019174437A1; CN110266826B

Abstract

The embodiment of the present application provides address management method, equipment and system, so that not only can be to avoid the problem of giving the IP address of different PDU session distribution to repeat, and the IP address in address pool can be efficiently used.Method includes: that session management network element determines that address resource corresponding with the first information is inadequate in the session management network element, wherein, the first information includes at least one of information or one or more data network title DNN of one or more tracking area TA；The session management network element sends the first notification message to the network equipment, and it is inadequate that first notification message is used to indicate address resource corresponding with the first information in the session management network element.

Description

Address management method, equipment and system

Technical field

This application involves field of communication technology more particularly to address management methods, equipment and system.

Background technique

In existing 5th generation (5rd generation, the 5G) network architecture, a conversation management functional (session Management function, SMF) network element can control multiple user plane functions (user plane function, UPF) net Member, meanwhile, a UPF network element can be by multiple SMF network element controls.

Wherein, in a UPF network element by under the scene of multiple SMF network element controls, in order to by a data network (data Network, DN) in belong to the downlink data of different grouping data cell (packet data unit, PDU) session pass through it is corresponding The corresponding tunnel of PDU session be sent to terminal, need to distribute different Internet protocols to different PDU sessions The address (internet protocol, IP), otherwise the downlink data that destination address is identical IP address cannot be distinguished in UPF network element It is that this by which corresponding tunnel of PDU session is sent to terminal.

To solve the above problems, proposing that a kind of address by the corresponding IP address pond segmentation of UPF network element is managed in the prior art Reason method.For example, the corresponding IP address pond of the UPF network element can be drawn if a UPF network element is connect with three SMF network elements It is divided into three different sections, is arranged respectively on three different SMF network elements.In this way, due to different SMF network element configurations difference IP address section, therefore the IP address that difference SMF network element is distributed to different PDU session will not be overlapped.

However, although the above method is avoided that the problem of IP address distributed to different PDU sessions repeats, still, if The quantity of SMF network element is more or the corresponding IP address pond of UPF network element in IP address limited amount, then with may cause IP Location can not efficiently use.For example, having been exhausted in the IP address configured in the IP address section on SMF1 network element, but it is disposed on There is also in the case where unspent IP address in IP address section on other SMF network elements, if having selected SMF1 network element for PDU meeting Words service, then will lead in the unspent situation of the corresponding IP address of UPF network element, terminal can not still access.

Therefore, when a UPF network element is by multiple SMF network element controls, how address administration is carried out, so that can not only keep away The problem of IP address of the different PDU session distribution of exempt from customs examination repeats, and the IP address in address pool can be efficiently used, it is current Urgent problem to be solved.

Summary of the invention

The embodiment of the present application provides address management method, equipment and system, so that not only can be to avoid to different PDU meetings The problem of IP address of words distribution repeats, and the IP address in address pool can be efficiently used.

In order to achieve the above objectives, embodiments herein adopts the following technical scheme that

In a first aspect, a kind of address management method is provided, this method comprises: session management network element determines the session management Address resource corresponding with the first information is inadequate in network element, wherein the first information includes one or more tracking area TA At least one of information or one or more data network title DNN；The session management network element sends the to the network equipment One notification message, first notification message are used to indicate in the session management network element address resource corresponding with the first information not It is sufficient.Since session management network element sends the first notification message to the network equipment network equipment is obtained based on the program Notify the state of address resource corresponding with the first information in words managed network element, therefore can be established in subsequent terminal session When selecting session management network element in journey, according to the state of address resource, evade the insufficient session management network element of address resource, selects The session management network element of address resource abundance is selected, to can not only ask to avoid the IP address distributed to different sessions is duplicate Topic, and the IP address in address pool can be efficiently used.

In a kind of possible design, which determines corresponding with the first information in the session management network element Address resource is inadequate, comprising: after the session management network element is first terminal distribution internet protocol address, the session Managed network element determines that address resource corresponding with the first information is inadequate in the session management network element, wherein this or more Include the information of the corresponding TA of the first terminal in the information of a TA, includes that the first terminal is corresponding in one or more DNN DNN.

In a kind of possible design, which includes the first movement managed network element for the first terminal service； This method further include: the session management network element is by the storage of the mark of the first movement managed network element to having notified mobile management net element In list, wherein this has notified to include that the session management network element has been notified of the session management in mobile management net element list The mark of the insufficient mobile management net element of address resource corresponding with the first information in network element.Based on the program, due to meeting Words managed network element, which can store, has notified mobile management net element list, therefore can provide in subsequent address corresponding with the first information When the abundance of source, corresponding mobile management net element is notified in time, so that the mobile management net element was established in subsequent terminal session When selecting session management network element in journey, the session management network element can choose.

In a kind of possible design, in the session management network element by the mark storage of the first movement managed network element to Before notifying in mobile management net element list, this method further include: the session management network element creates this and notified mobile management net First list.That is, in the embodiment of the present application, address resource corresponding with the first information can be originally it is sufficient, in meeting Talking about managed network element is that first terminal distributes after IP address, which becomes inadequate, has notified to move to need to create Dynamic managed network element list.

In alternatively possible design, the mark storage of the first movement managed network element is arrived in the session management network element Before having notified in mobile management net element list, this method further include: the session management network element is that second terminal distributes IP address Later, which determines that address resource corresponding with the first information is inadequate in the session management network element, wherein Include the information of the corresponding TA of the second terminal in the information of one or more TA, in one or more DNN including this The corresponding DNN of two terminals；The session management network element to the second mobile management net element for the second terminal service send this first Notification message；The session management network element creates this and has notified mobile management net element list.That is, in the embodiment of the present application, Address resource corresponding with the first information may be had already appeared before distributing IP address for first terminal it is inadequate, but first Mobile management net element is not aware that in the session management network element that address resource corresponding with the first information has already appeared inadequate.

In a kind of possible design, this method further include: the session management network element determine in the session management network element with The corresponding address resource of the first information is sufficient；The session management network element has notified the movement in mobile management net element list to this The corresponding mobile management net element of the mark of managed network element sends second notification message, which is used to indicate the session Address resource corresponding with the first information is sufficient in managed network element.That is, in the embodiment of the present application, with the first information When corresponding address resource abundance, corresponding mobile management net element can be notified in time, so that the mobile management net element is subsequent Terminal session establishment process in select session management network element when, can choose the session management network element.

In a kind of possible design, the network equipment include the session management network element connection mobile management net element or Network function stores network element；This method further include: the session management network element determine in the session management network element with the first information Corresponding address resource is sufficient；The session management network element sends second notification message, the second notification message to the network equipment It is sufficient to be used to indicate address resource corresponding with the first information in the session management network element.That is, the embodiment of the present application In, in address resource abundance corresponding with the first information, the corresponding network equipment can be notified in time, so that the network equipment When selecting session management network element in subsequent terminal session establishment process, the session management network element can choose.

In a kind of possible design, in the information of one or more TA include the corresponding TA of third terminal information, It include the corresponding DNN of the third terminal in one or more DNN；It is determined in the session management network element in the session management network element Before address resource corresponding with the first information is sufficient, this method further include: the session management network element is released to third end Hold the IP address of distribution.

In a kind of possible design, the inadequate packet of address resource corresponding with the first information in the session management network element The ratio for including available address resource in address resource corresponding with the first information in the session management network element is less than or equal to First preset value；Address resource abundance corresponding with the first information includes in the session management network element in the session management network element The ratio of available address resource is more than or equal to the second preset value in address resource corresponding with the first information, wherein should First preset value is less than or equal to second preset value.

In a kind of possible design, which carries the first information and the instruction of address abundance；Alternatively, should Second notification message carries mark, the first information and the instruction of address abundance of the session management network element.

In a kind of possible design, which carries the first information and the inadequate instruction in address；Alternatively, First notification message carries the inadequate instruction in mark, the first information and address of the session management network element.

Second aspect provides a kind of address management method, this method comprises: the network equipment, which receives, comes from the first session pipe The first notification message of network element is managed, which is used to indicate corresponding with the first information in the first session management network element Address resource it is inadequate, wherein the first information include one or more tracking area TA information or one or more number According at least one of network name DNN；The network equipment stores corresponding with the first information in the first session management network element The insufficient information of address resource.Based on the program, since the network equipment can be known in the first session management network element with The state of the corresponding address resource of one information, therefore session management network element can be selected in subsequent terminal session establishment process When, according to the state of address resource, evade the insufficient session management network element of address resource, selects the session of address resource abundance Managed network element, thus the problem of can not only being repeated to avoid the IP address distributed to different sessions, and can efficiently use ground IP address in the pond of location.

In a kind of possible design, which includes the session management net for first terminal service Member；Correspondingly, including the information of the corresponding TA of the first terminal, one or more DNN in the information of one or more TA In include the corresponding DNN of the first terminal.

In a kind of possible design, which includes the first movement managed network element for the first terminal service； This method further include: the first movement managed network element receives the session establishment request from second terminal, session establishment request The second information is carried, which includes in the information or the corresponding DNN of the second terminal of the corresponding TA of the second terminal At least one；The first movement managed network element is not filled according to one or more address resources of second information and storage The information of foot, selects the second session management network element for the second terminal service, wherein the one or more address resource includes one In a or multiple session management network elements with include the corresponding address resource of the information of second information.Based on the program, due to One mobile management net element can know the state of address resource corresponding with the first information in the first session management network element, therefore can When selecting session management network element in subsequent terminal session establishment process, according to the state of address resource, evade address money The insufficient session management network element in source selects the session management network element of address resource abundance, thus not only can be to avoid to difference The IP address of session distribution the problem of repeating, and the IP address in address pool can be efficiently used.

In a kind of possible design, which includes network function storage network element；This method further include: the network Function stores network element and receives the request message from the second mobile management net element for second terminal service, which carries Second information, second information include in the information or the corresponding DNN of the second terminal of the corresponding TA of the second terminal extremely It is one few；It is insufficient according to one or more address resources of second information and storage that the network function stores network element Information determines available session management network element list, wherein the one or more address resource includes one or more session pipes It manages in network element and including the corresponding address resource of the information of second information；The network function stores network element to second moving tube Reason network element sends the available session management network element list, and the available session management network element list is for selecting the second session pipe Reason network element is the second terminal service.Based on the program, since network function storage network element can know the first session management net The state of address resource corresponding with the first information in member, therefore session can be selected in subsequent terminal session establishment process When managed network element, according to the state of address resource, evades the insufficient session management network element of address resource, address resource is selected to fill The session management network element of foot, thus the problem of can not only being repeated to avoid the IP address distributed to different sessions, and can have Effect utilizes the IP address in address pool.

It include the second session management network element in the available session management network element list in a kind of possible design, Address resource corresponding with third information is sufficient in the second session management network element, wherein the third information includes one or more At least one of the information of a TA or one or more DNN include second information in the third information.

In a kind of possible design, this method further include: the network equipment, which receives, comes from the first session management network element Second notification message, which is used to indicate in the first session management network element correspondingly with the first information Location resource is sufficient；The network equipment deletes address resource corresponding with the first information in the first session management network element of storage Insufficient information.That is, in the embodiment of the present application, in address resource abundance corresponding with the first information, can and The corresponding network equipment of Shi Tongzhi so that the network equipment delete storage the first session management network element in the first information The corresponding insufficient information of address resource, and then in subsequent terminal session establishment process when selection session management network element, It can choose the session management network element.

The third aspect provides a kind of session management network element, which, which has, realizes that above-mentioned first aspect is appointed The function of method described in one.The function can also execute corresponding software realization by hardware realization by hardware. The hardware or software include one or more modules corresponding with above-mentioned function.

Fourth aspect provides a kind of session management network element, comprising: processor and memory；The memory is for storing Computer executed instructions, when session management network element operation, the computer which executes memory storage is executed Instruction, so that the session management network element executes the address management method as described in any one of above-mentioned first aspect.

5th aspect, provides a kind of session management network element, comprising: processor；The processor is used for and memory coupling It closes, and after reading the instruction in memory, the address as described in any one of above-mentioned first aspect is executed according to described instruction Management method.

6th aspect, provides a kind of computer readable storage medium, finger is stored in the computer readable storage medium It enables, when run on a computer, computer is allowed to execute address administration described in any one of above-mentioned first aspect Method.

7th aspect, provides a kind of computer program product comprising instruction, when run on a computer, so that Computer can execute address management method described in any one of above-mentioned first aspect.

Eighth aspect provides a kind of chip system, which includes processor, for supporting session management network element It realizes function involved in above-mentioned first aspect, such as determines address resource corresponding with the first information in session management network element It is inadequate.In a kind of possible design, which further includes memory, the memory, for saving session management net The necessary program instruction of member and data.The chip system, can be made of chip, also may include chip and other deviding devices Part.

Wherein, third aspect technical effect brought by any design method into eighth aspect can be found in first aspect Technical effect brought by middle different designs mode, details are not described herein again.

9th aspect, provides a kind of network equipment, which, which has, realizes described in above-mentioned any one of second aspect Method function.The function can also execute corresponding software realization by hardware realization by hardware.The hardware or Software includes one or more modules corresponding with above-mentioned function.

Tenth aspect, provides a kind of network equipment, comprising: processor and memory；The memory is calculated for storing Machine executes instruction, and when network equipment operation, which executes the computer executed instructions of memory storage, so that The network equipment executes the address management method as described in any one of above-mentioned second aspect.

On the one hand tenth, provides a kind of network equipment, comprising: processor；The processor is used to couple with memory, And after reading the instruction in memory, the address administration as described in any one of above-mentioned second aspect is executed according to described instruction Method.

12nd aspect, provides a kind of computer readable storage medium, is stored in the computer readable storage medium Instruction allows computer to execute the pipe of address described in any one of above-mentioned second aspect when run on a computer Reason method.

13rd aspect, provide a kind of computer program product comprising instruction makes when run on a computer Address management method described in any one of above-mentioned second aspect can be executed by obtaining computer.

Fourteenth aspect provides a kind of chip system, which includes processor, for supporting that the network equipment is real Function involved in existing above-mentioned second aspect, such as not according to the second information and one or more address resources of storage Sufficient information, selects the second session management network element for second terminal service.In a kind of possible design, the chip system is also Including memory, the memory, for saving the necessary program instruction of the network equipment and data.The chip system, can be by core Piece is constituted, and also may include chip and other discrete devices.

Wherein, the 9th aspect technical effect brought by any design method into 14 aspects can be found in second aspect Technical effect brought by middle different designs mode, details are not described herein again.

15th aspect, provides a kind of address management system, including session management network element and the network equipment.Wherein, meeting Managed network element is talked about, address resource corresponding with the first information is inadequate in the session management network element for determining, and sets to network Preparation send the first notification message, wherein first notification message is used to indicate corresponding with the first information in the session management network element Address resource it is inadequate, the first information include one or more tracking area TA information or one or more data network At least one of network title DNN；The network equipment, for receiving the first notification message from session management network element.

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

Detailed description of the invention

Fig. 1 is the configuration diagram of address management system provided by the embodiments of the present application；

Fig. 2 is the configuration diagram of 5G network provided by the embodiments of the present application；

Fig. 3 is the hardware structural diagram of communication equipment provided by the embodiments of the present application；

Fig. 4 is the correspondence diagram of address resource provided by the embodiments of the present application and TA；

Fig. 5 is the correspondence diagram of address resource provided by the embodiments of the present application and DN；

Fig. 6 is the correspondence diagram of address resource provided by the embodiments of the present application and DN and TA；

Fig. 7 is the flow diagram one of address management method provided by the embodiments of the present application；

Fig. 8 is the flow diagram two of address management method provided by the embodiments of the present application；

Fig. 9 is the structural schematic diagram of session management network element provided by the embodiments of the present application；

Figure 10 is the structural schematic diagram of the network equipment provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application is described.Its In, in the description of the present application, unless otherwise indicated, "/" indicate or the meaning, for example, A/B can indicate A or B；Herein "and/or" be only a kind of incidence relation for describing affiliated partner, indicate may exist three kinds of relationships, for example, A and/or B, Can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Also, in the description of the present application, remove Non- to be otherwise noted, " multiple " refer to two or more.In addition, for the ease of clearly describing the technical side of the embodiment of the present application Case, in embodiments herein, use the printed words such as " first ", " second " to function and act on essentially identical identical entry or Similar item distinguishes.It will be appreciated by those skilled in the art that the printed words such as " first ", " second " are not to quantity and execution order It is defined, and the printed words such as " first ", " second " also do not limit certain difference.

In addition, the network architecture and business scenario of the embodiment of the present application description are to more clearly illustrate the application The technical solution of embodiment does not constitute the restriction for technical solution provided by the embodiments of the present application, ordinary skill Personnel it is found that with the differentiation of the network architecture and the appearance of new business scene, technical solution provided by the embodiments of the present application for Similar technical problem, it is equally applicable.

As shown in Figure 1, being a kind of address management system 10 provided by the embodiments of the present application, which includes Session management network element 101 and the network equipment 102.

Wherein, session management network element 101, for determining address money corresponding with the first information in session management network element 101 Source is inadequate, information or one or more of the first information including one or more tracking areas (tracking area, TA) At least one of a data network name (data network name, DNN), associated description will be tied in subsequent embodiment It closes concrete scene to elaborate, details are not described herein.

Session management network element 101 is also used to send the first notification message to the network equipment 102, which uses Address resource corresponding with the first information is inadequate in instruction session management network element 101.

The network equipment 102, for receiving the first notification message from session management network element 101.

Optionally, in the embodiment of the present application, the network equipment 102 is also used to store in session management network element 101 and the first letter The corresponding insufficient information of address resource is ceased, the embodiment of the present application is not especially limited this.

Optionally, the inadequate ratio including available address resource in address resource of address resource in the embodiment of the present application Less than or equal to the first preset value；Address resource abundance includes that the ratio of available address resource in address resource is greater than or waits In the second preset value, wherein the first preset value is less than or equal to the second preset value.

Illustratively, it is assumed that the first preset value and the second preset value are 1%, if then currently available in an address resource The ratio of address resource is more than or equal to 1%, then can determine address resource abundance at this time；It is assumed to be terminal distribution one Make the ratio of currently available address resource in the address resource less than 1% after IP address in the address resource, then at this time The address resource becomes inadequate；If subsequent one terminal initiates address release, so that available address resource in the address resource Ratio be more than or equal to 1%, then the address resource becomes sufficient at this time；If being again at this time one address money of terminal distribution IP address in source then causes the ratio of available address resource in the address resource again less than 1%, then the address resource is again at this time Become inadequate, move in circles, also frequent switching, the phenomenon are known as ping-pong to the state of address resource.

Alternatively, illustrative, it is assumed that the first preset value is 1%, and the second preset value is 2%, that is to say, that there are a thresholds It is worth section, if then the ratio of currently available address resource is greater than 2% in an address resource, can determines that the address provides at this time Source is sufficient；It is assumed to be the IP address in one or more terminal distributions address resource currently may be used in the address resource later 1% is dropped to the constant of address resource, then the address resource becomes inadequate at this time；If subsequent one or multiple terminals Address release is initiated, so that the constant of available address resource increases to %2 in the address resource, then the address resource at this time Become sufficient.This threshold interval can be used for avoiding ping-pong.

Optionally, the ratio of above-mentioned available address resource also could alternatively be available address resource in the embodiment of the present application Number；Alternatively, address resource can also be characterized with the ratio of unavailable address resource or the number of unavailable address resource Abundance or address resource are inadequate etc., and the embodiment of the present application is not especially limited this.Wherein, the following embodiments of the application are only It is exemplary and determines whether address resource is sufficient, is described collectively herein with the ratio of available address resource, it is no longer superfluous below It states.

Optionally, the network equipment 102 in the embodiment of the present application for example may include mobile management net element or network function Network element etc. can be stored, the embodiment of the present application is not especially limited this.

Optionally, can be with direct communication between the session management network element 101 in the present embodiment and the network equipment 102, it can also To be communicated by the forwarding of other equipment, the embodiment of the present application is not especially limited this.

In address management system provided by the embodiments of the present application, due to the network equipment can know in session management network element with The state of the corresponding address resource of the first information, therefore session management net can be selected in subsequent terminal session establishment process When first, according to the state of address resource, evade the insufficient session management network element of address resource, select the meeting of address resource abundance Managed network element is talked about, thus the problem of can not only being repeated to avoid the IP address distributed to different sessions, and can efficiently use IP address in address pool.

Optionally, address management system shown in FIG. 1 can be applied to current 5G network and following other networks, The present invention is not especially limit this.

Illustratively, it is assumed that address management system shown in FIG. 1 can be applied to current 5G network, then as shown in Fig. 2, Network element corresponding to above-mentioned session management network element or entity can be the SMF network element in 5G network；Above-mentioned network function Storing network element corresponding to network element or entity can be network function store function (the network function in 5G network Repository function, NRF) network element, network element or entity corresponding to above-mentioned mobile management net element can be 5G net Access and mobile management function to ps domain (access and mobility management function, AMF) network element in network.

In addition, as shown in Fig. 2, the 5G network can also include access device, UPF network element, uniform data management (unified data management, UDM) network element, policy control functions (policy control function, PCF) net Member, authentication server function (authentication server function, AUSF) network element etc., the embodiment of the present application is to this It is not especially limited.

Wherein, as shown in Fig. 2, in the embodiment of the present application, terminal accesses 5G core network by access device, and terminal passes through Next generation network (Next generation, N) 1 interface (abbreviation N1) is communicated with AMF network element, and access device passes through the (letter of N2 interface Claim N2) it is communicated with AMF network element, access device is communicated by N3 interface (abbreviation N3) with UPF network element, and AMF network element passes through N11 interface (abbreviation N11) is communicated with SMF network element, and AMF network element is communicated by N8 interface (abbreviation N8) with UDM network element, and AMF network element passes through N12 Interface (abbreviation N12) is communicated with AUSF network element, and AMF network element is communicated by N15 interface (abbreviation N15) with PCF network element, SMF network element It is communicated by N7 interface (abbreviation N7) with PCF network element, SMF network element is communicated by N4 interface (abbreviation N4) with UPF network element, NRF net Member is communicated with UPF network element and SMF network element respectively, and UPF network element accesses data network by N6 interface (abbreviation N6).

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

It should be noted that terminal, access device, NRF network element, AMF network element, SMF network element, UPF network element in Fig. 2, AUSF network element, UDM network element or PCF network element etc. are only a names, and name does not constitute restriction to equipment itself.5G network with And in the following other networks, terminal, access device, AMF network element, SMF network element, UPF network element, AUSF network element, UDM network element or Network element corresponding to PCF network element or entity are also possible to other names, and the embodiment of the present application is not especially limited this.Example Such as, UPF network element is it is also possible to be replaced by UPF UPF entity；UDM network element is it is also possible to be replaced by user attaching service Device (home subscriber server, HSS) or user-subscribed database (user subscription database, USD) or database entity etc., it is described collectively, is repeated no more below herein.

Optionally, terminal (terminal) involved in the embodiment of the present application may include various with wireless communication The handheld device of function, wearable device, calculates equipment or is connected to other processing of radio modem and set mobile unit It is standby；It can also include subscriber unit (subscriber unit), cellular phone (cellular phone), smart phone (smart phone), wireless data card, are put down at personal digital assistant (personal digital assistant, PDA) computer Template computer, radio modem (modem), handheld device (handheld), laptop computer (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), terminal device (terminal device) or trunk subscriber equipment etc..Its In, trunk subscriber equipment for example can be 5G home gateway (residential gateway, RG).For convenience of description, the application In, apparatus mentioned above is referred to as terminal.

Optionally, the equipment that access device involved in the embodiment of the present application refers to core network access, such as can be with It is base station, broadband network Service Gateway (broadband network gateway, BNG), convergence switch, non-third generation conjunction Make Partnership Program (3rd generation partnership project, 3GPP) access network element etc..Base station may include each The base station of kind form, such as: macro base station, micro-base station (also referred to as small station), relay station, access point etc..

Optionally, the session management network element in the embodiment of the present application Fig. 1 or the network equipment can be realized by an equipment, Can also be realized jointly by multiple equipment, can also be a functional module in an equipment, the embodiment of the present application to this not Make specific limit.It is understood that above-mentioned function is either network element in hardware device, is also possible to dedicated hard The virtualization instantiated in the software function or platform (for example, cloud platform) run on part.

For example, the session management network element or the network equipment in the embodiment of the present application Fig. 1 can be set by the communication in Fig. 3 It is standby to realize.Fig. 3 show the hardware structural diagram of communication equipment provided by the embodiments of the present application.The communication equipment 300 packet Include at least one processor 301, communication line 302, memory 303 and at least one communication interface 304.

Processor 301 can be a general central processor (central processing unit, CPU), micro process Device, application-specific integrated circuit (application-specific integrated circuit, ASIC) or one or more A integrated circuit executed for controlling application scheme program.

Communication line 302 may include an access, and information is transmitted between said modules.

Communication interface 304, 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 303 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 Erasable programmable read-only memory, EEPROM), CD-ROM (compact disc read- Only memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, optical disc, digital universal Optical disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or store to have referring to Enable or data structure form desired program code and can by any other medium of computer access, but not limited to this. Memory, which can be, to be individually present, and is connected by communication line 302 with processor.Memory can also be integrated in processor Together.

Wherein, memory 303 be used for store execution application scheme computer executed instructions, and by processor 301 Control executes.Processor 301 is for executing the computer executed instructions stored in memory 303, to realize that the application is following The address management method 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 301 may include one or more CPU, such as in Fig. 3 CPU0 and CPU1.

In the concrete realization, as one embodiment, communication equipment 300 may include multiple processors, such as in Fig. 3 Processor 301 and processor 308.Each of these processors can be monokaryon (single-CPU) processor, It can be multicore (multi-CPU) processor.Here processor can refer to one or more equipment, circuit, and/or use In the processing core of processing data (such as computer program instructions).

In the concrete realization, as one embodiment, communication equipment 300 can also include that output equipment 305 and input are set Standby 306.Output equipment 305 and processor 301 communicate, and can show information in many ways.For example, output equipment 305 can To be liquid crystal display (liquid crystal display, LCD), Light-Emitting Diode (light emitting diode, LED equipment) is shown, cathode-ray tube (cathode ray tube, CRT) shows equipment or projector (projector) etc.. Input equipment 306 and processor 301 communicate, and can receive the input of user in many ways.For example, input equipment 306 can be with It is mouse, keyboard, touch panel device or sensing equipment etc..

Above-mentioned communication equipment 300 can be a common apparatus either special equipment.In the concrete realization, lead to Letter equipment 300 can be desktop computer, portable computer, network server, palm PC (personal digital Assistant, PDA), cell phone, tablet computer, wireless terminal device, embedded device or have setting for similar structures in Fig. 3 It is standby.The embodiment of the present application does not limit the type of communication equipment 300.

Address management method provided by the embodiments of the present application is specifically addressed below in conjunction with Fig. 1 to Fig. 3.

It should be noted that each parameter in message name or message in the following embodiments of the application between each network element Name etc. is an example, is also possible to other names in specific implementation, the embodiment of the present application is not especially limited this.

Firstly, it is true to provide SMF network element so that address management system shown in FIG. 1 is applied to 5G network as shown in Figure 2 as an example It is as follows to determine the mode that whether address resource corresponding with the first information is sufficient in SMF network element:

One: SMF network element of mode determines that the resource in some the corresponding address pool of UPF network element configured on the SMF network element is No abundance is equivalent to SMF network element and determines that address resource corresponding with the first information is inadequate in the SMF network element if inadequate； If sufficient, it is equivalent to SMF network element and determines that address resource corresponding with the first information is sufficient in the SMF network element.That is, this When the first information include in the information or the corresponding all DNN of the UPF network element of the corresponding all TA of the UPF network element extremely It is one few.

Illustratively, the address resource 1 in Fig. 4 refers in the corresponding address pool of UPF1 network element configured on SMF network element Resource, the address resource 2 in Fig. 4 refer to the resource in the corresponding address pool of UPF2 network element configured on SMF network element.Wherein, The service network element of UPF1 corresponds to TA1 and TA2, and UPF2 network element corresponds to TA3 and TA2.

Assuming that SMF network element determines that address resource 1 is inadequate, then the determining information and TA2 with TA1 of SMF network element is equivalent to The corresponding address resource of information is inadequate；Or, it is assumed that SMF network element determines address resource abundance, then is equivalent to SMF network element and determines Address resource corresponding with the information of the information of TA1 and TA2 is sufficient.Wherein it is determined that whether address resource 1 and address resource 2 fill The mode of foot can refer to embodiment shown in FIG. 1, and details are not described herein.

Two: SMF network element of mode determines the money in some the corresponding address pool of UPF network element configured on the SMF network element first Whether source is sufficient；If sufficient similar with situation sufficient in mode one, details are not described herein；If inadequate, the UPF is reexamined Whether the corresponding one or more TA of network element is covered by the SMF network element control or other UPF network elements of management, only when one When resource in the corresponding address pool of the corresponding all UPF network elements of TA occurs insufficient, the address resource of the TA, which is just considered as, not to be filled Foot.That is, the first information at this time includes one or more in the information of the corresponding TA of the UPF network element.

Illustratively, in conjunction with above-mentioned Fig. 4, it is assumed that address resource 1 occurs inadequate, but address resource 2 is sufficient, then TA3 Corresponding address resource can be considered as abundance, and the corresponding address resource of TA2 can also be considered as abundance；If current SMF network element control Or there is no UPF network element to cover TA1 in other UPF network elements of management, then the corresponding address resource of TA1 is considered as inadequate.

Mode three can be segmented due to being directed to the address resource of some UPF network element according to DNN, SMF network element Determine address resource whether abundance whether can be the corresponding address resource of some corresponding DNN of determining UPF network element sufficient, only When all UPF network elements configured on SMF network element occur inadequate for the address resource of the DNN, the corresponding address the DNN Resource is just considered as inadequate.That is, the first information at this time includes one in the corresponding DNN of the UPF network element or more It is a.

Illustratively, as shown in figure 5, UPF1 network element and UPF2 network element correspond to DNN1 and DNN2, then UPF1 network element is corresponding Address resource needs be segmented according to DNN, comprising: the corresponding address resource of the corresponding address resource 1-1 and DNN2 of DNN1 1-2；UPF2 network element corresponding address resource needs are segmented according to DNN, comprising: the corresponding address resource 2-1 of DNN1 and The corresponding address resource 2-2 of DNN2.In this case, if UPF1 network element goes out for the address resource (i.e. address resource 1-1) of DNN1 Existing inadequate, only other UPF network elements of the SMF NE management also go out for the address resource (such as address resource 2-1) of DNN1 It is inadequate address is showed, the corresponding address resource of DNN1 can just be considered as inadequate.Wherein it is determined that address resource 1-1 and address money Whether Chong Zu mode can refer to embodiment shown in FIG. 1 to source 2-1, and details are not described herein.

Wherein, in the embodiment of the present application, the corresponding address resource 1-2 of the corresponding address resource 1-1 and DNN2 of DNN1 may Have overlapping, it is also possible to not overlap；The corresponding address resource 2-2 of the corresponding address resource 2-1 and DNN2 of DNN1 may have it is overlapping, May also be without overlapping, the embodiment of the present application is not especially limited this.

Wherein, in the embodiment of the present application, the corresponding address resource of some corresponding DNN of UPF network element specifically refers to: session is built It can be the address resource of the session distribution when carrying corresponding some DNN of UPF network element in vertical request.That is, if session That carry in foundation request is some corresponding DNN of UPF network element, then needs to distribute the UPF network element the corresponding DNN for the session Address in corresponding address resource.For example, being needed if that carry in session establishment request is the corresponding DNN1 of UPF1 network element The address in the corresponding address resource 1-1 of the corresponding DNN1 of UPF1 network element is distributed for the session, is described collectively herein, below no longer It repeats.

Mode four: the combination of mode two and mode three, that is to say, that the first information in which includes the UPF network element One or more in one or more and this corresponding TA of UPF network element in corresponding DNN.In this case, for Some TA, if the corresponding address resource for belonging to some DNN of the TA occur on SMF network element it is inadequate.Can then it pass through As under type determines that TA address resource corresponding with the DNN is inadequate:

A, SMF network element has first determined whether that other UPF network elements can cover this TA；

If B, A is set up, other UPF network elements that SMF network element is determined to cover this TA are for the address resource of the DNN No abundance.

Illustratively, as shown in fig. 6, UPF1 network element corresponds to TA1 and TA2, UPF2 network element corresponds to TA3 and TA2；UPF1 network element DNN1 and DNN2 are corresponded to UPF2 network element, the corresponding address resource of UPF1 network element is segmented according to DNN, comprising: DNN1 pairs The corresponding address resource 1-2 of address resource 1-1 and DNN2 answered；The corresponding address resource of UPF2 network element is segmented according to DNN, It include: the corresponding address resource 2-2 of the corresponding address resource 2-1 and DNN2 of DNN1.In this case, belonging to if TA2 is corresponding The address resource 1-1 of DNN1 is inadequate, then SMF network element can determine that UPF2 network element also covers TA2, and in turn, SMF network element determines Whether UPF2 network element is sufficient for the address resource 2-1 of DNN1, and only UPF2 network element also occurs for the address resource 2-1 of DNN1 Inadequate, DNN1 and the corresponding address resource of TA2 can just be considered as inadequate.Wherein it is determined that address resource 1-1 and address resource Whether Chong Zu mode can refer to embodiment shown in FIG. 1 to 2-1, and details are not described herein.

It should be noted that aforesaid way one to mode four is merely exemplary and gives several SMF network elements and determine SMF net In member address resource corresponding with the first information whether Chong Zu specific implementation, it is of course also possible to there is other implementations, this Application embodiment is not especially limited this.

Secondly, 5G network as shown in Figure 2 will be applied to address management system shown in FIG. 1 below, the network equipment is For AMF network element in 5G network, as shown in fig. 7, being a kind of address management method provided by the embodiments of the present application, address pipe Reason method includes the following steps:

S701, terminal 1 send session establishment request 1 to SMF1 network element, so that SMF1 network element receives the meeting for carrying out self terminal 1 Words establish request 1.

Wherein, the session establishment request 1 carry the 4th information, the 4th information include the corresponding TA of terminal 1 information or At least one of corresponding DNN of person's terminal 1.The information of the TA is used to characterize the location information of terminal 1, such as may include TA At least one of mark, cell ID or location information, the embodiment of the present application is not especially limited this.

Optionally, the session in the embodiment of the present application for example can be PDU session, and the embodiment of the present application is not made this specifically It limits.

S702, SMF1 network element distribute IP address according to session establishment request 1, for terminal 1.

Wherein, the related realization of step S702 can refer to existing implementation, and details are not described herein.

S703, SMF1 network element be terminal 1 distribute IP address after, SMF1 network element determine in SMF1 network element with the first information Corresponding address resource is inadequate, the first information include in the information or one or more DNN of one or more TA extremely It is one few.

It in the embodiment of the present application, is that SMF1 network element will be according to above-mentioned the after terminal 1 distributes IP address in SMF1 network element Four information determine corresponding UPF network element, wherein the information of the corresponding all TA of the UPF network element or the UPF network element are corresponding At least one of information or the corresponding DNN of terminal 1 at least one of all DNN including the corresponding TA of terminal 1.Into And SMF1 network element can determine whether address resource corresponding with the first information in SMF network element is sufficient according to above-mentioned SMF network element Mode determines whether address resource corresponding with the first information is sufficient in SMF1 network element, and details are not described herein.

Optionally, in the embodiment of the present application, in the information of one or more TA include the corresponding TA of terminal 1 information, one It include the corresponding DNN of terminal 1 in a or multiple DNN.For example, if the session establishment in step S701 requests carried terminal 1 in 1 right The information of the TA answered, then the first information includes the information of one or more TA, includes terminal 1 in the information of one or more TA The information of corresponding TA；Alternatively, if the session establishment in step S701 requests the information of the corresponding DNN of carried terminal 1 in 1, The first information includes the information of one or more DNN, includes the letter of the corresponding DNN of terminal 1 in the information of one or more DNN Breath；Alternatively, if the session establishment in step S701 requests the information and terminal 1 of the corresponding TA of carried terminal 1 in 1 corresponding The information of DNN, then the first information includes the information of one or more DNN and the information of one or more TA, and this or more Include the information of the corresponding DNN of terminal 1 in the information of a DNN, includes the corresponding TA of terminal 1 in the information of one or more TA Information.

It should be noted that can be before terminal 1 establishes session in the embodiment of the present application, in SMF1 network element The corresponding address resource of one information have already appeared it is inadequate, but since the AMF1 network element serviced for terminal 1 is not aware that SMF1 Address resource corresponding with the first information has already appeared inadequate in network element, is still that terminal 1 is selected so as to cause the AMF1 network element SMF1 network element is selected；Alternatively, address resource corresponding with the first information was sufficient originally in SMF1 network element, it is that terminal 1 is distributed After IP address, address resource corresponding with the first information in SMF1 network element is caused to have already appeared inadequate, the embodiment of the present application This is not especially limited.

Optionally, in the embodiment of the present application, address resource corresponding with the first information is inadequate can also to be characterized as and the The corresponding address resource of one information is unavailable or corresponding with first information SMF1 network element is unavailable etc., the embodiment of the present application pair This is not especially limited.

S704, SMF1 network element send a notification message 1 to the AMF1 network element serviced for terminal 1, so that AMF1 network element receives Notification message 1 from SMF1 network element.Wherein, which is used to indicate in SMF1 network element correspondingly with the first information Location resource is inadequate.

Optionally, in the embodiment of the present application, which can carry the inadequate instruction of the first information and address； Or the notification message 1 carries the first information, the inadequate instruction of the mark of SMF1 network element and address etc., the embodiment of the present application pair This is not especially limited.Wherein, in the case where notification message 1 does not carry the mark of SMF1 network element, AMF1 network element can basis Signaling connection between AMF1 network element and SMF1 network element determines that the mark of SMF1 network element, the embodiment of the present application do not limit this specifically It is fixed.In addition, the method for determination of the first information, which can refer to above-mentioned SMF network element, determines address corresponding with the first information in SMF network element Resource whether Chong Zu mode, details are not described herein

Optionally, in the embodiment of the present application, which can be carried in session establishment response 1, be also possible to specially The notification message of door, the embodiment of the present application are not especially limited this.

S705, SMF1 network element are by the storage of the mark of the AMF1 network element serviced for terminal 1 to having notified in AMF network element list.

Wherein, this has notified to include that SMF1 network element has been notified of in SMF1 network element and the first information in AMF network element list The mark of the corresponding insufficient AMF network element of address resource.

In a kind of possible implementation, if the insufficient situation of address resource corresponding with the first information in SMF1 network element To first appear, that is to say, that address resource corresponding with the first information be originally it is sufficient, for terminal 1 distribute IP address it Afterwards, address resource corresponding with the first information is caused in SMF1 network element to have already appeared inadequate.Then SMF1 network element needs to create at this time It builds and has notified in AMF network element list, and by the storage of the mark of the AMF1 network element serviced for terminal 1 to having notified AMF network element list In, as a result as shown in Table 1:

Table one

Information	The mark of AMF network element
		The first information	The mark of AMF1 network element

In alternatively possible implementation, if the insufficient feelings of address resource corresponding with the first information in SMF1 network element Condition does not first appear, that is to say, that before terminal 1 establishes session, address money corresponding with the first information in SMF1 network element Source have already appeared it is inadequate, but since the AMF1 network element serviced for terminal 1 is not aware that in SMF1 network element and the first information pair The address resource answered has already appeared inadequate, is still that terminal 1 has selected SMF1 network element so as to cause the AMF1 network element.Then at this time It has existed and has notified AMF network element list, this has notified that AMF network element list is address corresponding with the first information in SMF1 network element What the insufficient situation of resource created in the case where first appearing.For example, after SMF1 network element is the distribution IP address of terminal 3, SMF1 network element determines that address resource corresponding with the first information is inadequate in SMF1 network element, then SMF1 network element is serviced to for terminal 3 AMF3 network element send above-mentioned notification message 1, and create and notified AMF network element list, while the mark of AMF3 network element being deposited It stores up and has notified in AMF network element list.In SMF1 network element by the storage of the mark of the AMF1 network element serviced for terminal 1 to having notified After in AMF network element list, this has notified that the list of AMF network element can be as shown in Table 2:

Table two

Optionally, in the embodiment of the present application, the mark of AMF1 network element for example can be the title of AMF1 network element, AMF1 network element Address or other unique identifications AMF1 network element information etc., the embodiment of the present application is not especially limited this.

It should be noted that there is no inevitable execution successive between step S704 and step S705 in the embodiment of the present application Sequentially, it can be and first carry out step S704, then execute step S705；It can also be and first carry out step S705, then execute step S704 can also be and be performed simultaneously step S705 and step S704, the embodiment of the present application is not especially limited this.

S706, AMF1 network element store the insufficient information of address resource corresponding with the first information in SMF1 network element.

Illustratively, in SMF1 network element the insufficient information of address resource corresponding with the first information be possibly stored to it is following Table three in:

Table three

Certainly, table three is merely illustrative, the insufficient letter of address resource corresponding with the first information in SMF1 network element Breath can also have other storage forms, and the embodiment of the present application is not especially limited this.

Other processes of S707, session establishment.

In the embodiment of the present application, other processes of session establishment can refer to existing implementation, and details are not described herein.

It should be noted that there is no inevitable hold between the step S707 in the embodiment of the present application and step S703-S706 Row sequencing can be and first carry out step S707, then execute one or more steps in step S703-S706；It can also be with It is one or more steps in first step S703-S706, then executes step S707；Can also be performed simultaneously step S707 with And one or more steps in step S703-S706, etc., the embodiment of the present application is not especially limited this.

Optionally, address management method provided by the embodiments of the present application can also include the following steps:

S708, terminal 2 send session establishment request 2 to the AMF1 network element serviced for terminal 2, so that AMF1 network element receives Carry out the session establishment request 2 of self terminal 2.

Wherein, the session establishment request 2 carry the second information, second information include the corresponding TA of terminal 2 information or At least one of corresponding DNN of person's terminal 2.

S709, AMF1 network element are according to the second information and the insufficient information of one or more address resources of storage, choosing SMF2 network element is selected as the service of terminal 2.Wherein, one or more address resources include in one or more SMF network element and including the The corresponding address resource of the information of two information.

Such as, it is assumed that AMF1 network element determines that SMF1 network element and SMF2 network element can service for terminal 2 according to the prior art, then If the first information includes the information of TA1 and the information of TA2, the second information includes the information of TA1, stores SMF1 in AMF1 network element The insufficient information of address resource corresponding with the first information in network element, then AMF1 network element will not select SMF1 network element for terminal 2 Service, but select SMF2 network element for the service of terminal 2.

Other processes of S710, session establishment.

S711, terminal 3 send session release request to SMF1 network element, so that SMF1 network element receives the meeting for carrying out self terminal 3 Words release request.Wherein, session release request is for requesting the session of release terminal 3.

S712, SMF1 network element are released to the IP address of the distribution of terminal 3.

It is assumed to be the IP address of the distribution of terminal 3 for the ground in address resource corresponding with the first information in above-mentioned SMF1 network element Location, then after the IP address that SMF1 network element is released to the distribution of terminal 3, SMF1 network element can by the IP distributed for terminal 3 Location store to and SMF1 network element in address resource corresponding with the first information；Or this is what terminal 3 was distributed by SMF1 network element For IP address labeled as available etc., the embodiment of the present application is not especially limited this.

Optionally, SMF1 network element is released to the IP of the distribution of terminal 3 in the case that the embodiment of the present application is with 3 releasing session of terminal It is illustrated for address, certainly, releasing session, SMF1 network element may also not be released to the IP address of the distribution of terminal 3 to terminal 3, Such as when the session of terminal has multiple IP anchor points, in the case where one of IP anchor point release, IP address can also discharge, still Session does not discharge at this time, and the embodiment of the present application is not especially limited this.

Other processes that S713, session discharge.

In the embodiment of the present application, other processes of session release can refer to existing implementation, and details are not described herein.

It should be noted that step S711-S713 is said so that SMF1 network element is released to the IP address of the distribution of terminal 3 as an example Bright, certainly, SMF1 network element can also be released to the IP address of the distribution of terminal 1, and the embodiment of the present application is not especially limited this.

S714, SMF1 network element determine that address resource corresponding with the first information is sufficient in SMF1 network element.

Wherein, the specific implementation of step S714 can refer to above-mentioned SMF network element determine it is corresponding with the first information in SMF network element Address resource whether Chong Zu mode, details are not described herein.

It should be noted that in the embodiment of the present application, it may be possible to which SMF1 network element discharges one in the way of step S712 Or after multiple IP address, SMF1 network element just determines that address resource corresponding with the first information is sufficient in SMF1 network element, this Shen Please embodiment this is not especially limited.

The acquisition of S715, SMF1 network element has notified AMF network element list.

Assuming that this has notified AMF that list is as shown in Table 2, then address management method provided by the embodiments of the present application further includes Following steps:

S716, SMF1 network element send a notification message 2 to AMF1 network element, so that AMF1 according to having notified AMF network element list Network element receives the notification message 2 from SMF1 network element.Wherein, which is used to indicate in SMF1 network element and the first information Corresponding address resource is sufficient.

Optionally, in the embodiment of the present application, which can carry the first information and the instruction of address abundance；Or Person's notification message 2 carry the first information, SMF1 network element mark and address abundance instruction etc., the embodiment of the present application to this not Make specific limit.Wherein, in the case where notification message 2 does not carry the mark of SMF1 network element, AMF1 network element can be according to AMF1 Signaling connection between network element and SMF1 network element determines that the mark of SMF1 network element, the embodiment of the present application are not especially limited this.

Optionally, in the embodiment of the present application, which can be carried in session release response, be also possible to specially The notification message of door, the embodiment of the present application are not especially limited this.

S717, AMF1 network element delete the insufficient information of address resource corresponding with the first information in SMF1 network element.

Assuming that the insufficient information of the address resource stored in AMF1 network element was originally as shown in Table 3, then deleted in AMF1 network element It, as a result can be as shown in Table 4 after the insufficient information of address resource corresponding with the first information in SMF1 network element:

Table four

S718-S719, similar with step S716-S717, difference, which is only that, replaces the AMF1 network element in step S716-S717 It is changed to AMF3 network element, notification message 2 replaces with notification message 3, and associated description can refer to step S716-S717, no longer superfluous herein It states.

It should be noted that there is no inevitable hold between the step S713 in the embodiment of the present application and step S714-S719 Row sequencing can be and first carry out step S713, then execute one or more steps in step S714-S719；It can also be with It is one or more steps in first step S714-S719, then executes step S713；Can also be performed simultaneously step S713 with And one or more steps in step S714-S719, etc., the embodiment of the present application is not especially limited this.

In address management method provided by the embodiments of the present application, since AMF1 network element can be known in SMF1 network element with first The state of the corresponding address resource of information, therefore when can select SMF network element in subsequent terminal session establishment process, according to The state of address resource evades the insufficient SMF network element of address resource, the SMF network element of address resource abundance is selected, thus not only The problem of being repeated to avoid the IP address distributed to different sessions, and the IP address in address pool can be efficiently used.

Wherein, the movement of SMF1 network element or AMF1 network element of the above-mentioned steps S701 into S719 can as shown in Figure 3 Processor 301 in communication equipment 300 calls the application code stored in memory 303 to execute, and the present embodiment is to this It is not intended to be limited in any.

Optionally, 5G network as shown in Figure 2 is applied to address management system shown in FIG. 1, the network equipment is 5G net For AMF network element in network, the embodiment of the present application also provides a kind of address management method, similar with embodiment shown in Fig. 7, area It is not only that: in embodiment shown in Fig. 7, determining that address resource corresponding with the first information is not in SMF1 network element in SMF1 network element After abundance, 1 is sent a notification message to the AMF1 network element serviced for terminal 1；And in the present embodiment, SMF1 is determined in SMF1 network element After address resource corresponding with the first information is inadequate in network element, SMF1 network element can notify all up to or with SMF1 net The AMF network element of member connection.In this way, SMF1 network element can not need establish notified AMF list because in subsequent SMF1 network element with After the corresponding address resource of the first information is sufficient, SMF1 network element can equally notify all up to or with SMF1 network element.Its In, the AMF network element connecting here with SMF1 network element can refer to the AMF network element for having had correspondence, although may also mean that There is no correspondence temporarily, but SMF1 network element has AMF network element of its address etc., the embodiment of the present application does not limit this specifically It is fixed.

Certainly, in the case where SMF1 network element notifies AMF network element that is all reachable or connecting with SMF1 network element, SMF1 net Member also can choose foundation and notify AMF list, and the embodiment of the present application is not especially limited this.

Optionally, 5G network as shown in Figure 2 is applied to address management system shown in FIG. 1, the network equipment is 5G net For NRF network element in network, as shown in figure 8, being a kind of address management method provided by the embodiments of the present application, the address administration side Method includes the following steps:

S801, terminal 1 send session establishment request 1 to the AMF1 network element serviced for terminal 1, so that AMF1 network element receives Carry out the session establishment request 1 of self terminal 1.

Wherein, the session establishment request 1 carry the 4th information, the 4th information include the corresponding TA of terminal 1 information or At least one of corresponding DNN of person's terminal 1.

S802, AMF1 network element are sent to NRF network element can use SMF network element list request 1, so that the reception of NRF network element comes from The available SMF network element list request 1 of AMF1 network element.

Wherein, which carries above-mentioned 4th information.

S803, NRF network element are sent to AMF1 network element can use SMF network element list response 1, so that the reception of AMF1 network element comes from The available SMF network element list response 1 of NRF network element.

Wherein, the list in SMF network element list response 1 including available SMF network element can be used, it can be in the list of SMF network element Mark including SMF network element can be used, the mark of the available SMF network element is such as the address that can be available SMF network element, the application Embodiment is not especially limited this.

In the embodiment of the present application, NRF network element stores the insufficient information of address resource in SMF network element, in turn, NRF network element It needs that the list of SMF network element can be used according to the status information determination of the address resource of storage.SMF in the available SMF network element list The address resource of network element is sufficient, which is and include the corresponding address resource of the information of above-mentioned 4th information.For example, false If the 4th above-mentioned information includes the TA of terminal 1, it is denoted as TA1；The status information of the address resource stored in NRF network element such as table five It is shown, then it does not include the mark of SMF3 network element in available SMF network element list.

Table five

Assuming that the mark of the mark and SMF2 network element that in the list of SMF network element include SMF1 network element can be used, then the application is implemented The address management method that example provides can also include the following steps:

S804, AMF1 network element select SMF1 network element for the service of terminal 1 according to that can use the list of SMF network element.

For example, AMF1 network element can according to load information of the one or more SMF network elements stored in AMF1 network element etc. because Element, selects a SMF network element for the service of terminal 1 from multiple SMF network elements, and the embodiment of the present application is not especially limited this.

S805, AMF1 network element send session establishment request 1 to SMF1 network element, so that SMF1 network element, which receives, comes from AMF1 net The session establishment request 1 of member.

Wherein, the associated description of session establishment request 1 can refer to step S801, and details are not described herein.

S806-S807, with step S702-S703, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

S808, similar with step S704, difference, which is only that, replaces with this reality for the AMF1 network element in embodiment shown in Fig. 7 The NRF network element in example is applied, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

S809, similar with step S706, difference, which is only that, replaces with this reality for the AMF1 network element in embodiment shown in Fig. 7 The NRF network element in example is applied, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

Assuming that the first information in step S807 includes TA1, TA5 and TA6, then in the SMF network element of NRF network element storage at this time The insufficient information of address resource can be as shown in Table 6:

Table six

Other processes of S810, session establishment.

It should be noted that there is no inevitable hold between the step S810 in the embodiment of the present application and step S807-S809 Row sequencing can be and first carry out step S810, then execute one or more steps in step S807-S809；It can also be with It is one or more steps in first step S807-S809, then executes step S810；Can also be performed simultaneously step S810 with And one or more steps in step S807-S809, etc., the embodiment of the present application is not especially limited this.

S811, with step S708, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

Optionally, the embodiment of the present application is with the AMF network element serviced for terminal 2 with the AMF network element serviced for terminal 1 It is illustrated for AMF1 network element, is that the AMF network element that terminal 1 services is also possible to the AMF network element serviced for terminal 2 certainly Different AMF network elements, for example, be terminal 1 service AMF network element be AMF1 network element, be terminal 3 service AMF network element be AMF3 Network element etc., the embodiment of the present application is not especially limited this.

S812, AMF1 network element are sent to NRF network element can use SMF network element list request 2, so that the reception of NRF network element comes from The available SMF network element list request 2 of AMF1 network element.

Wherein, which carries above-mentioned second information.

S813, NRF network element are sent to AMF1 network element can use SMF network element list response 2, so that the reception of AMF1 network element comes from The available SMF network element list response 2 of NRF network element.

Wherein, the list in SMF network element list response 2 including available SMF network element can be used.

Wherein, the determination of NRF network element can refer to the description in above-mentioned steps S803 with the mode of the list of SMF network element, This is repeated no more.

Assuming that in the second information carried terminal 2 TA, be denoted as TA1；The status information of the address resource stored in NRF network element As shown in Table 6, then can be used in the list of SMF network element does not include the mark of SMF3 network element and the mark of SMF1 network element.

Assuming that the mark in the list of SMF network element including SMF2 network element can be used, then address administration provided by the embodiments of the present application Method can also include the following steps:

S814, AMF1 network element select SMF2 network element for the service of terminal 2 according to that can use the list of SMF network element.

Other processes of S815, session establishment.

S816-S819, with step S711-S714, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

S820-S821, similar with step S716-S717, difference is only that the AMF1 network element in embodiment shown in Fig. 7 The NRF network element in the present embodiment is replaced with, associated description can refer to embodiment shown in Fig. 7, and details are not described herein.

Assuming that the insufficient information of the address resource stored in NRF network element was originally as shown in Table 6, then deleted in NRF network element It, as a result can be as shown in above-mentioned table five in SMF1 network element after the insufficient information of address resource corresponding with the first information.

It should be noted that there is no inevitable hold between the step S818 in the embodiment of the present application and step S819-S821 Row sequencing can be and first carry out step S818, then execute one or more steps in step S819-S821；It can also be with It is one or more steps in first step S819-S821, then executes step S818；Can also be performed simultaneously step S818 with And one or more steps in step S819-S821, etc., the embodiment of the present application is not especially limited this.

In address management method provided by the embodiments of the present application, since NRF network element can be known in SMF1 network element with first The state of the corresponding address resource of information, therefore when can select SMF network element in subsequent terminal session establishment process, according to The state of address resource evades the insufficient SMF network element of address resource, the SMF network element of address resource abundance is selected, thus not only The problem of being repeated to avoid the IP address distributed to different sessions, and the IP address in address pool can be efficiently used.

Wherein, the movement of NRF network element or AMF1 network element of the above-mentioned steps S801 into S821 can lead to as shown in Figure 3 Processor 301 in letter equipment 300 calls in memory 303 application code that stores to execute, the present embodiment to this not It imposes any restrictions.

To sum up, therefore, the embodiment of the present application discloses a kind of address management method, comprising: session management network element determines meeting It is inadequate to talk about address resource corresponding with the first information in managed network element, wherein the first information includes one or more tracking At least one of the information of area TA or one or more data network title DNN；Session management network element is sent out to the network equipment The first notification message is sent, which is used to indicate in session management network element address resource corresponding with the first information not It is sufficient.

As a kind of realization, session management network element determines that address resource corresponding with the first information is not in session management network element It is sufficient, comprising: after session management network element is first terminal distribution IP address, session management network element determines session management network element In address resource corresponding with the first information it is inadequate, wherein in the information of one or more TA include first terminal it is corresponding The information of TA includes the corresponding DNN of first terminal in one or more DNN.

As a kind of realization, the network equipment includes the first movement managed network element for first terminal service；The application is implemented Address management method disclosed in example can also include: session management network element by the mark storage of first movement managed network element to having led to Know in mobile management net element list, wherein notified to include that session management network element has been notified of in mobile management net element list The mark of the insufficient mobile management net element of address resource corresponding with the first information in session management network element.

Further, as a kind of realization, in session management network element by the mark storage of first movement managed network element to Before notifying in mobile management net element list, address management method disclosed in the embodiment of the present application can also include: session management Network element creation has notified mobile management net element list.

Alternatively, it is optional, it realizes as another kind, stores the mark of first movement managed network element in session management network element To before having notified in mobile management net element list, address management method disclosed in the embodiment of the present application can also include: session Managed network element is that second terminal is distributed after IP address, and session management network element determines corresponding with the first information in session management network element Address resource it is inadequate, wherein in the information of one or more TA include the corresponding TA of second terminal information, one or more It include the corresponding DNN of second terminal in a DNN；Session management network element is sent out to for the second mobile management net element of second terminal service Send the first notification message；The creation of session management network element has notified mobile management net element list.

As a kind of realization, address management method disclosed in the embodiment of the present application can also include: that session management network element is true It is sufficient to determine address resource corresponding with the first information in session management network element；Session management network element is to having notified mobile management net element The corresponding mobile management net element of the mark of mobile management net element in list sends second notification message, and second notification message is used for Indicate that address resource corresponding with the first information is sufficient in session management network element.

As a kind of realization, the network equipment includes that the mobile management net element of session management network element connection or network function are deposited Store up network element；Address management method disclosed in the embodiment of the present application can also include: that session management network element determines session management network element In corresponding with first information address resource it is sufficient；Session management network element sends second notification message to the network equipment, this second It is sufficient that notification message is used to indicate address resource corresponding with the first information in session management network element.

As a kind of realization, in the information of one or more TA include the corresponding TA of third terminal information, one or more It include the corresponding DNN of third terminal in a DNN；It is determined in session management network element corresponding with the first information in session management network element Before address resource is sufficient, address management method disclosed in the embodiment of the present application can also include: that session management network element is released to The IP address of third terminal distribution.

It includes session management that as a kind of realization, in session management network element, address resource corresponding with the first information is inadequate The ratio of available address resource is less than or equal to the first preset value in address resource corresponding with the first information in network element；Session In managed network element and the corresponding address resource abundance of the first information includes address corresponding with the first information in session management network element The ratio of available address resource is more than or equal to the second preset value in resource, wherein the first preset value is less than or equal to the Two preset values.

Optionally, in the embodiment of the present application, second notification message carries the first information and the instruction of address abundance；Alternatively, Second notification message carries mark, the first information and the instruction of address abundance of session management network element.

Optionally, in the embodiment of the present application, the first notification message carries the first information and the inadequate instruction in address；Or Person, the first notification message carry the mark of session management network element, the inadequate instruction of the first information and address.

In address above mentioned management method, for example, the operation of session management network element can refer to Fig. 7 SMF1 network element into Fig. 8 Operation and above-mentioned related text explanation, details are not described herein.

In addition, the embodiment of the present application also discloses a kind of address management method, comprising: the network equipment, which receives, comes from the first meeting The first notification message of managed network element is talked about, which is used to indicate in the first session management network element and the first information pair The address resource answered is inadequate, wherein the first information includes the information or one or more of one or more tracking area TA At least one of data network title DNN；The network equipment stores in the first session management network element correspondingly with the first information The insufficient information of location resource.

As a kind of realization, the first session management network element includes the session management network element for first terminal service；Correspondingly, Include the information of the corresponding TA of first terminal in the information of one or more TA, includes first terminal pair in one or more DNN The DNN answered.

As a kind of realization, the network equipment includes the first movement managed network element for first terminal service；The application is implemented Address management method disclosed in example can also include: that session establishment of the first movement managed network element reception from second terminal is asked It asks, session establishment request carries the second information, which includes information or the second end of the corresponding TA of second terminal Hold at least one of corresponding DNN；First movement managed network element is according to the second information and one or more addresses of storage The insufficient information of resource selects the second session management network element for second terminal service, wherein one or more address resource packets Include in one or more session management network elements with include the corresponding address resource of the information of the second information.

It is realized as another kind, the network equipment includes network function storage network element；The pipe of address disclosed in the embodiment of the present application Reason method can also include: that network function storage network element receives asking from the second mobile management net element for second terminal service Message is sought, which carries the second information, and the second information includes the information or second terminal of the corresponding TA of second terminal At least one of corresponding DNN；Network function stores network element and is provided according to one or more addresses of the second information and storage The insufficient information in source determines available session management network element list, wherein one or more address resources include one or more In a session management network element with include the corresponding address resource of the information of the second information；It is mobile to second that network function stores network element Managed network element sends available session management network element list, and available session management network element list is for selecting the second session management Network element is second terminal service.

It optionally, include the second session management network element in available session management network element list in the embodiment of the present application, the Address resource corresponding with third information is sufficient in two session management network elements, wherein third information includes one or more TA At least one of information or one or more DNN include the second information in third information.

As a kind of realization, address management method disclosed in the embodiment of the present application can also include: that the network equipment receives From the second notification message of the first session management network element, which is used to indicate in the first session management network element and The corresponding address resource of one information is sufficient；The network equipment is deleted corresponding with the first information in the first session management network element of storage The insufficient information of address resource.

In address above mentioned management method, for example, the operation of the network equipment can refer to the operation of Fig. 7 AMF1 network element into Fig. 8 And above-mentioned related text explanation, alternatively, the operation of the network equipment can refer to Fig. 7 operation of NRF network element and above-mentioned correlation into Fig. 8 Explanatory note, details are not described herein.

It is above-mentioned that mainly scheme provided by the embodiments of the present application is described from the angle of interaction between each network element.It can With understanding, in order to realize the above functions, it comprises execute each function for above-mentioned session management network element or the network equipment Corresponding hardware configuration and/or software module.Those skilled in the art should be readily appreciated that, in conjunction with disclosed herein Each exemplary unit and algorithm steps of embodiment description, the application can be with the combination shape of hardware or hardware and computer software Formula is realized.Some functions is executed in a manner of hardware or computer software driving hardware actually, depends on technical solution Specific application and design constraint.Professional technician can realize each specific application using distinct methods Described function, but this realization is it is not considered that exceed scope of the present application.

The embodiment of the present application can carry out function mould to session management network element or the network equipment according to above method example The division of block, for example, each functional module of each function division can be corresponded to, it can also be by two or more function collection In Cheng Yi processing module.Above-mentioned integrated module both can take the form of hardware realization, can also use software function The form of module is realized.It should be noted that being schematically that only one kind is patrolled to the division of module in the embodiment of the present application Function division is collected, there may be another division manner in actual implementation.

For example, Fig. 9 shows a kind of session management net in the case where to use the integrated each functional module of model split The structural schematic diagram of member 90.The session management network element 90 includes: processing module 902 and transceiver module 901.Wherein, processing module 902, for determining, address resource corresponding with the first information is inadequate in session management network element 90, wherein the first information packet Include at least one of information or the one or more DNN of one or more TA；Transceiver module 901 is used for the network equipment The first notification message is sent, which is used to indicate address money corresponding with the first information in session management network element 90 Source is inadequate.

Optionally, processing module 902 is specifically used for: after distributing IP address for first terminal, determining session management net Address resource corresponding with the first information is inadequate in member 90, wherein includes first terminal pair in the information of one or more TA The information of the TA answered includes the corresponding DNN of first terminal in one or more DNN.

Further, in a kind of possible implementation, the network equipment includes the first movement pipe for first terminal service Manage network element；As shown in figure 9, session management network element 90 further includes memory module 903.Memory module 903 is used for first movement pipe The mark storage of reason network element is to having notified in mobile management net element list, wherein this has notified to wrap in mobile management net element list It includes session management network element 90 and has been notified of the insufficient shifting of address resource corresponding with the first information in session management network element 90 The mark of dynamic managed network element.

Optionally, processing module 902 are also used to creation and have notified mobile management net element list.

Alternatively, optional, processing module 902 determines session management net after being also used to distribute IP address for second terminal Address resource corresponding with the first information is inadequate in member 90, wherein includes second terminal pair in the information of one or more TA The information of the TA answered includes the corresponding DNN of second terminal in one or more DNN；Transceiver module 901 is also used to being second Second mobile management net element of terminal service sends the first notification message；Processing module 902 is also used to creation and has notified moving tube Manage network element list.

Optionally, processing module 902 are also used to determine address resource corresponding with the first information in session management network element 90 It is sufficient；Transceiver module 901 is also used to the corresponding shifting of mark for having notified the mobile management net element in mobile management net element list Dynamic managed network element sends second notification message, which is used to indicate in session management network element 90 and the first information pair The address resource answered is sufficient.

In alternatively possible implementation, the network equipment include session management network element 90 connect mobile management net element or Person's network function stores network element；Processing module 902 is also used to determine address corresponding with the first information in session management network element 90 Resource is sufficient；Transceiver module 901 is also used to send second notification message to the network equipment, which is used to indicate Address resource corresponding with the first information is sufficient in session management network element 90.

It optionally, include the information of the corresponding TA of third terminal in the information of one or more TA, in one or more DNN Including the corresponding DNN of third terminal；Processing module 902 is also used to be released to the IP address of third terminal distribution.

Wherein, all related contents for each step that above method embodiment is related to can quote corresponding function module Function description, details are not described herein.

In the present embodiment, the session management network element 90 in the form of using the integrated each functional module of model split come It presents.Here " module " can refer to that specific ASIC, circuit execute the processor of one or more softwares or firmware program and deposit Reservoir, integrated logic circuit and/or other device of above-mentioned function can be provided.In a simple embodiment, this field Technical staff be contemplated that the session management network element 90 can use form shown in Fig. 3.

For example, processor 301 in Fig. 3 can by calling the computer executed instructions stored in memory 303 so that Session management network element 90 executes the address management method in above method embodiment.

Specifically, the function of transceiver module 901, processing module 902 in Fig. 9 and memory module 903/realization process can be with The computer executed instructions stored in memory 303 are called to realize by the processor 301 in Fig. 3.Alternatively, the place in Fig. 9 Function/realization the process for managing module 902 can call the computer stored in memory 303 to hold by the processor 301 in Fig. 3 To realize, function/realization process of the transceiver module 901 in Fig. 9 can be by the communication interface 304 in Fig. 3 come real for row instruction Existing, function/realization process of the memory module 903 in Fig. 9 can be realized by the memory 303 in Fig. 3.

Since above-mentioned address management method can be performed in session management network element provided in this embodiment, can obtain Technical effect can refer to above method embodiment, details are not described herein.

Optionally, the embodiment of the present application also provides a kind of chip systems, which includes processor, for supporting Session management network element realizes address above mentioned management method, such as determines address money corresponding with the first information in session management network element Source is inadequate.In a kind of possible design, which further includes memory.The memory, for saving session management The necessary program instruction of network element and data.Certainly, memory can not also be in chip system.The chip system, can be by core Piece is constituted, and also may include chip and other discrete devices, the embodiment of the present application is not especially limited this.

For example, Figure 10 shows a kind of network equipment in the case where to use the integrated each functional module of model split 100 structural schematic diagram.The network equipment 100 includes: transceiver module 1001 and memory module 1003.Wherein, transceiver module 1001, for receiving the first notification message from the first session management network element, which is used to indicate the first meeting Address resource corresponding with the first information is inadequate in words managed network element, wherein the first information includes one or more TA At least one of information or one or more DNN；Memory module 1003, for store the first session management network element in The insufficient information of the corresponding address resource of the first information.

Optionally, the first session management network element includes the session management network element for first terminal service；Correspondingly, one or Include the information of the corresponding TA of first terminal in the information of multiple TA, includes that first terminal is corresponding in one or more DNN DNN；

Further, in a kind of possible implementation, the network equipment 100 includes the first movement for first terminal service Managed network element；As shown in Figure 10, the network equipment 100 further includes processing module 1002；Transceiver module 1001 is also used to reception and comes from The session establishment of second terminal is requested, and session establishment request carries the second information, which includes that second terminal is corresponding TA information or at least one of the corresponding DNN of second terminal；Processing module 1002, for according to the second information, with And the insufficient information of one or more address resources of storage, select the second session management network element for second terminal service, In, one or more address resources include in one or more session management network elements with include that the information of the second information is corresponding Location resource.

In alternatively possible implementation, the network equipment 100 includes that network function stores network element；As shown in Figure 10, net Network equipment 100 further includes processing module 1002；Transceiver module 1001 is also used to receive and move from second for second terminal service The request message of dynamic managed network element, the request message carry the second information, which includes the corresponding TA of second terminal At least one of information or the corresponding DNN of second terminal；Processing module 1002, for according to the second information and storage The insufficient information of one or more address resources, determine available session management network element list, wherein one or more ground Location resource include in one or more session management network elements with include the corresponding address resource of the information of the second information；Transceiver module 1001, it is also used to send available session management network element list, available session management network element column to the second mobile management net element Table is for selecting the second session management network element for second terminal service.

Optionally, transceiver module 1001 are also used to receive the second notification message from the first session management network element, this It is sufficient that two notification messages are used to indicate address resource corresponding with the first information in the first session management network element；Processing module 1002, it is also used to delete the insufficient information of address resource corresponding with the first information in the first session management network element of storage.

In the present embodiment, which is in the form of using the integrated each functional module of model split It is existing.Here " module " can refer to that specific ASIC, circuit execute processor and the storage of one or more softwares or firmware program Device, integrated logic circuit and/or other device of above-mentioned function can be provided.In a simple embodiment, this field Technical staff is contemplated that the network equipment 100 can use form shown in Fig. 3.

For example, processor 301 in Fig. 3 can by calling the computer executed instructions stored in memory 303 so that The network equipment 100 executes the address management method in above method embodiment.

Specifically, the function of transceiver module 1001, processing module 1002 in Figure 10 and memory module 1003/realization process The computer executed instructions stored in memory 303 can be called to realize by the processor 301 in Fig. 3.Alternatively, in Figure 10 Function/realization process of processing module 1002 meter that stores in memory 303 can be called by the processor 301 in Fig. 3 Calculation machine executes instruction to realize, function/realization process of the transceiver module 1001 in Figure 10 can pass through the communication interface in Fig. 3 304 realize, function/realization process of the memory module 1003 in Figure 10 can realize by the memory 303 in Fig. 3.

Since above-mentioned address management method can be performed in the network equipment provided in this embodiment, skill can be obtained Art effect can refer to above method embodiment, and details are not described herein.

Optionally, the embodiment of the present application also provides a kind of chip systems, which includes processor, for supporting The network equipment realize address above mentioned management method, such as according to the second information and storage one or more address resources not Sufficient information, selects the second session management network element for second terminal service.In a kind of possible design, the chip system is also Including memory.The memory, for saving the necessary program instruction of the network equipment and data.Certainly, memory can not also In chip system.The chip system, can be made of chip, also may include chip and other discrete devices, and the application is real It applies example and this is not especially limited.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer Program product includes one or more computer instructions.On computers load and execute computer program instructions when, all or It partly generates according to process or function described in the embodiment of the present application.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 Word user line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be accessed either includes the numbers such as one or more server, data centers that medium can be used to integrate According to storage equipment.The usable medium can be 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..

Although the application is described in conjunction with each embodiment herein, however, implementing the application claimed In the process, those skilled in the art are by checking the attached drawing, disclosure and the appended claims, it will be appreciated that and it is real Other variations of the existing open embodiment.In the claims, " comprising " (comprising) word is not excluded for other compositions Part or step, "a" or "an" are not excluded for multiple situations.Claim may be implemented in single processor or other units In several functions enumerating.Mutually different has been recited in mutually different dependent certain measures, it is not intended that these are arranged It applies to combine and generates good effect.

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

Claims

1. a kind of address management method, which is characterized in that the described method includes:

Session management network element determines that address resource corresponding with the first information is inadequate in the session management network element, wherein institute It states in the information or one or more data network title DNN that the first information includes one or more tracking area TA at least One；

The session management network element sends the first notification message to the network equipment, and first notification message is used to indicate the meeting It is inadequate to talk about address resource corresponding with the first information in managed network element.

2. the method according to claim 1, wherein the session management network element determines the session management network element In address resource corresponding with the first information it is inadequate, comprising:

It is after first terminal distributes internet protocol address in the session management network element, the session management network element determines Address resource corresponding with the first information is inadequate in the session management network element, wherein one or more of TA's Include the information of the corresponding TA of the first terminal in information, includes that the first terminal is corresponding in one or more of DNN DNN.

3. according to the method described in claim 2, it is characterized in that, the network equipment includes for the first terminal service First movement managed network element；The method also includes:

The session management network element is by the storage of the mark of the first movement managed network element to having notified mobile management net element list In, wherein it is described to have notified to include that the session management network element has been notified of the session pipe in mobile management net element list Manage the mark of the insufficient mobile management net element of address resource corresponding with the first information in network element.

4. according to the method described in claim 3, it is characterized in that, the first movement is managed in the session management network element The mark of network element is stored to before having notified in mobile management net element list, the method also includes:

The session management network element creation is described to have notified mobile management net element list.

5. according to the method described in claim 3, it is characterized in that, the first movement is managed in the session management network element The mark of network element is stored to before having notified in mobile management net element list, the method also includes:

The session management network element is that second terminal is distributed after IP address, and the session management network element determines the session management Address resource corresponding with the first information is inadequate in network element, wherein includes institute in the information of one or more of TA The information of the corresponding TA of second terminal is stated, includes the corresponding DNN of the second terminal in one or more of DNN；

The session management network element sends first notice to the second mobile management net element for the second terminal service and disappears Breath；

6. according to the described in any item methods of claim 3-5, which is characterized in that the method also includes:

The session management network element determines that address resource corresponding with the first information is sufficient in the session management network element；

The session management network element is corresponding to the mark for having notified the mobile management net element in mobile management net element list Mobile management net element send second notification message, the second notification message be used to indicate in the session management network element with it is described The corresponding address resource of the first information is sufficient.

7. the method according to claim 1, wherein the network equipment includes the session management network element connection Mobile management net element or network function store network element；The method also includes:

The session management network element sends second notification message to the network equipment, and the second notification message is used to indicate institute It is sufficient to state address resource corresponding with the first information in session management network element.

8. method according to claim 6 or 7, which is characterized in that include third in the information of one or more of TA The information of the corresponding TA of terminal includes the corresponding DNN of the third terminal in one or more of DNN；In the session pipe Before reason network element determines that address resource corresponding with the first information is sufficient in the session management network element, the method is also wrapped It includes:

The session management network element is released to the IP address of the third terminal distribution.

9. according to the described in any item methods of claim 6-8, which is characterized in that with described first in the session management network element The corresponding address resource of information is inadequate including in address resource corresponding with the first information in the session management network element The ratio of available address resource is less than or equal to the first preset value；It is corresponding with the first information in the session management network element Address resource abundance include in the session management network element in address resource corresponding with the first information available address provide The ratio in source is more than or equal to the second preset value, wherein first preset value is less than or equal to second preset value.

10. the method according to claim 6, which is characterized in that the second notification message carries described the One information and the instruction of address abundance；Alternatively, the second notification message carries the mark of the session management network element, described One information and the instruction of address abundance.

11. -10 described in any item methods according to claim 1, which is characterized in that first notification message carries described the The inadequate instruction of one information and address；Alternatively, first notification message carries the mark, described of the session management network element The inadequate instruction of the first information and address.

12. a kind of address management method, which is characterized in that the described method includes:

The network equipment receives the first notification message from the first session management network element, and first notification message is used to indicate institute It is inadequate to state address resource corresponding with the first information in the first session management network element, wherein the first information includes one Or the information or at least one of one or more data network title DNN of multiple tracking area TA；

It is inadequate that the network equipment stores address resource corresponding with the first information in the first session management network element Information.

13. according to the method for claim 12, which is characterized in that the first session management network element includes for first terminal The session management network element of service；Correspondingly, including the corresponding TA of the first terminal in the information of one or more of TA Information includes the corresponding DNN of the first terminal in one or more of DNN.

14. according to the method for claim 13, which is characterized in that the network equipment includes for the first terminal service First movement managed network element；The method also includes:

The first movement managed network element receives the session establishment request from second terminal, and the session establishment request carries the Two information, second information include in the information or the corresponding DNN of the second terminal of the corresponding TA of the second terminal At least one；

The first movement managed network element is insufficient according to one or more address resources of second information and storage Information selects the second session management network element for the second terminal service, wherein one or more of address resources include one In a or multiple session management network elements with include the corresponding address resource of the information of second information.

15. method according to claim 12 or 13, which is characterized in that the network equipment includes network function storage net Member；The method also includes:

The network function storage network element receives the request message from the second mobile management net element for second terminal service, institute It states request message and carries the second information, second information includes the information or described second of the corresponding TA of the second terminal At least one of corresponding DNN of terminal；

The network function storage network element is insufficient according to one or more address resources of second information and storage Information determines available session management network element list, wherein one or more of address resources include one or more sessions In managed network element with include the corresponding address resource of the information of second information；

The network function stores network element and sends the available session management network element list to second mobile management net element, The available session management network element list is for selecting the second session management network element for the second terminal service.

16. according to the method for claim 15, which is characterized in that include institute in the available session management network element list The second session management network element is stated, address resource corresponding with third information is sufficient in the second session management network element, wherein institute At least one of information or the one or more DNN that third information includes one or more TA are stated, in the third information Including second information.

17. the described in any item methods of 2-16 according to claim 1, which is characterized in that the method also includes:

The network equipment receives the second notification message from the first session management network element, and the second notification message is used Address resource corresponding with the first information is sufficient in instruction the first session management network element；

The network equipment deletes address resource corresponding with the first information in the first session management network element of storage Insufficient information.

18. a kind of session management network element, which is characterized in that the session management network element includes: processing module and transceiver module；

The processing module, for determining, address resource corresponding with the first information is inadequate in the session management network element, In, the first information includes in the information or one or more data network title DNN of one or more tracking area TA At least one；

The transceiver module, for sending the first notification message to the network equipment, first notification message is used to indicate described Address resource corresponding with the first information is inadequate in session management network element.

19. session management network element according to claim 18, which is characterized in that the processing module is specifically used for:

For first terminal distribute internet protocol address after, determine in the session management network element with the first information Corresponding address resource is inadequate, wherein including the corresponding TA of the first terminal in the information of one or more of TA Information includes the corresponding DNN of the first terminal in one or more of DNN.

20. session management network element according to claim 19, which is characterized in that the network equipment is including being described first The first movement managed network element of terminal service；The session management network element further includes memory module；

The memory module, for by the storage of the mark of the first movement managed network element to having notified mobile management net element list In, wherein it is described to have notified to include that the session management network element has been notified of the session pipe in mobile management net element list Manage the mark of the insufficient mobile management net element of address resource corresponding with the first information in network element.

21. session management network element according to claim 20, which is characterized in that

The processing module, is also used to create and described has notified mobile management net element list.

22. session management network element according to claim 20, which is characterized in that

The processing module, be also used to for second terminal distribute IP address after, determine in the session management network element with it is described The corresponding address resource of the first information is inadequate, wherein includes the second terminal pair in the information of one or more of TA The information of the TA answered includes the corresponding DNN of the second terminal in one or more of DNN；

The transceiver module is also used to send first notice to the second mobile management net element for the second terminal service Message；

23. according to the described in any item session management network elements of claim 20-22, which is characterized in that

The processing module is also used to determine in the session management network element that address resource corresponding with the first information fills Foot；

The transceiver module is also used to corresponding to the mark for having notified the mobile management net element in mobile management net element list Mobile management net element send second notification message, the second notification message is used to indicate in the session management network element and institute It is sufficient to state the corresponding address resource of the first information.

24. session management network element according to claim 18, which is characterized in that the network equipment includes the session pipe The mobile management net element or network function for managing network element connection store network element；

The transceiver module is also used to send second notification message to the network equipment, and the second notification message is for referring to Show that address resource corresponding with the first information is sufficient in the session management network element.

25. the session management network element according to claim 23 or 24, which is characterized in that the information of one or more of TA In include the corresponding TA of third terminal information, include the corresponding DNN of the third terminal in one or more of DNN；

The processing module is also used to be released to the IP address of the third terminal distribution.

26. a kind of network equipment, which is characterized in that the network equipment includes: transceiver module and memory module；

The transceiver module, for receiving the first notification message from the first session management network element, first notification message It is inadequate to be used to indicate address resource corresponding with the first information in the first session management network element, wherein first letter Breath includes at least one of information or one or more data network title DNN of one or more tracking area TA；

The memory module, for storing in the first session management network element address resource corresponding with the first information not Sufficient information.

27. the network equipment according to claim 26, which is characterized in that the first session management network element is including being first The session management network element of terminal service；Correspondingly, including that the first terminal is corresponding in the information of one or more of TA The information of TA includes the corresponding DNN of the first terminal in one or more of DNN.

28. the network equipment according to claim 27, which is characterized in that the network equipment includes for the first terminal The first movement managed network element of service；The network equipment further includes processing module；

The transceiver module, is also used to receive the session establishment request from second terminal, and session establishment request carries the Two information, second information include in the information or the corresponding DNN of the second terminal of the corresponding TA of the second terminal At least one；

The processing module, for the insufficient letter of one or more address resources according to second information and storage Breath, selects the second session management network element for the second terminal service, wherein one or more of address resources include one Or in multiple session management network elements with include the corresponding address resource of the information of second information.

29. the network equipment according to claim 26 or 27, which is characterized in that the network equipment includes that network function is deposited Store up network element；The network equipment further includes processing module；

The transceiver module is also used to receive the request message from the second mobile management net element for second terminal service, institute It states request message and carries the second information, second information includes the information or described second of the corresponding TA of the second terminal At least one of corresponding DNN of terminal；

The processing module, for the insufficient letter of one or more address resources according to second information and storage Breath, determines available session management network element list, wherein one or more of address resources include one or more session pipes It manages in network element and including the corresponding address resource of the information of second information；

The transceiver module is also used to send the available session management network element list to second mobile management net element, The available session management network element list is for selecting the second session management network element for the second terminal service.

30. according to the described in any item network equipments of claim 26-29, which is characterized in that the network equipment further includes place Manage module；

The transceiver module is also used to receive the second notification message from the first session management network element, and described second is logical It is sufficient to know that message is used to indicate address resource corresponding with the first information in the first session management network element；

The processing module is also used to delete in the first session management network element of storage correspondingly with the first information The insufficient information of location resource.

31. a kind of address management system, which is characterized in that the address management system includes that session management network element and network are set It is standby；

The session management network element, for determining, address resource corresponding with the first information does not fill in the session management network element Foot, and the first notification message is sent to the network equipment, wherein first notification message is used to indicate the session management network element In address resource corresponding with the first information it is inadequate, the first information includes the letter of one or more tracking area TA At least one of breath or one or more data network title DNN；

The network equipment, for receiving first notification message from the session management network element.