CN109167670A

CN109167670A - PFCP connection processing method, device, network element, system and storage medium

Info

Publication number: CN109167670A
Application number: CN201810745399.4A
Authority: CN
Inventors: 李志军; 周晟
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-07-09
Filing date: 2018-07-09
Publication date: 2019-01-08
Anticipated expiration: 2038-07-09
Also published as: WO2020011152A1; CN109167670B

Abstract

The embodiment of the present invention provides a kind of PFCP connection processing method, device, network element, system and storage medium, the PFCP configuration information for the second network element that the second network element is sent is obtained by the first network element, to the determining PFCP establishment of connection mode between the second network element of PFCP configuration information based on the second network element, and then in certain implementation processes, first network element can carry out PFCP with the second network element according to the PFCP establishment of connection mode and connect the control established, do not need manually on the first network element and the second network element configure PFCP connection establish mode, reduce the investment of human resources, while cost is reduced, the accuracy that control is established in PFCP connection can also be promoted, guarantee the stability and reliability of communication.

Description

PFCP connection processing method, device, network element, system and storage medium

Technical field

The present embodiments relate to but be not limited to the communications field, in particular to but be not limited to a kind of PFCP (Packet Filter Control Protocol, packet filtering control protocol) connection processing method, device, network element, communication system and storage Medium.

Background technique

As largely deployment and deep application, some new framework demands have also been suggested and have implemented 4G system, such as CUPS (Control and User Plane Separation, control plane and the separation of user face) framework.Under 4G framework, SGW (Serving Gateway, gateway), PGW (PDN Gateway, grouped data network gateway), TDF (Traffic Detection Function, Data Detection function) existing management connection and session control plane function, and have simple processing IP The user plane functions of data transmission, it is possible to the function of SGW, PGW and TDF be split, CPF (Control is divided into Plane Function, control plane function) and UPF (User Plane Function, user plane functions).Wherein, the function of SGW The SGW-C for being responsible for control surface treatment, the SGW-U for being responsible for user's surface treatment can be split into, the function of PGW splits into responsible control plane The PGW-C of processing, the PGW-U for being responsible for user's surface treatment, the function of TDF, which is split into, to be responsible for the TDF-C of control surface treatment, is responsible for use The TDF-U of family surface treatment；And in 5G framework, control plane and the separation of user face are then primary supports, such as in 5G framework SMF (Session Management Function, conversation management functional) belongs to above-mentioned CP, the 5G UPF (5G in 5G framework User Plane Function, user plane functions) belong to above-mentioned UPF.

In order to simplify statement, the control planes unit such as SGW-C, PGW-C, TDF-C, SMF is referred to as underneath with CPF, is used UPF is referred to as the user plane units such as SGW-U, PGW-U, TDF-U, 5G UPF；In application scenes, CPF entity may be only The ability of some control plane unit with above-mentioned example, it is also possible to two or more control planes with above-mentioned example The ability (namely there may be the unifications of multiple control plane units, such as SGW-C, PGW-C to unify) of unit, correspondingly, UPF entity There is also the ability only with user plane unit or with the ability of two or more user plane units.For the feelings Condition, in order to which the conversation message to terminal provides stable transmission channel, related way is by net administrative staff according to CPF entity With the feature of UPF entity, corresponding PFCP is physically configured with UPF in CPF entity and connects the mode of foundation, using as CPF and UPF Establish control foundation when PFCP connection；But this manual configuration PFCP connection establish the way of mode there are heavy workload, at This height and error-prone problem.

Summary of the invention

PFCP connection processing method, device, network element, system and storage medium provided in an embodiment of the present invention, mainly solve The technical issues of be: solve the problems, such as that establishing mode by manual configuration PFCP connection exists.

In order to solve the above technical problems, the embodiment of the present invention provides a kind of packet filtering control protocol PFCP connection processing side Method, comprising:

First network element obtains the PFCP configuration information for second network element that the second network element is sent；

First network element is based on PFCP between the PFCP configuration information determination of second network element and second network element Establishment of connection mode；

First network element carries out PFCP according to the PFCP establishment of connection mode with second network element and connect foundation Control.

In order to solve the above technical problems, the embodiment of the invention also provides a kind of PFCP connection processing unit, it is applied to the One network element comprising:

Data obtaining module, the PFCP configuration information of second network element for obtaining the transmission of the second network element；

Processing module determines the first network element and second net for the PFCP configuration information based on second network element PFCP establishment of connection mode between member；

Connection establishment module is used for according to the PFCP establishment of connection mode, to first network element and described second PFCP establishment of connection is controlled between network element.

In order to solve the above technical problems, the embodiment of the invention also provides a kind of PFCP connection processing units, comprising:

Information receiving module, the PFCP configuration information of second network element for receiving the transmission of the second network element；

Determining module determines the first network element and second net for the PFCP configuration information based on second network element PFCP establishment of connection mode between member；

Processing module is connected, is used for according to the PFCP establishment of connection mode, to first network element and described second PFCP establishment of connection is controlled between network element.

In order to solve the above technical problems, the embodiment of the invention also provides a kind of network element, including processor, memory and logical Believe bus, the communication bus is used for realizing the connection communication between the processor and the memory, the memory In the one or more computer programs of storage；

The processor is for executing the one or more computer programs stored in the memory, to realize institute as above The step of PFCP connection processing method stated.

In order to solve the above technical problems, the embodiment of the invention also provides a kind of communication system, including the first network element and Two network elements；

Second network element is used to for the PFCP configuration information of itself being sent to first network element, and for according to institute The PFCP establishment of connection mode for stating the determination of the first network element is established PFCP with first network element and is connect；

First network element is used for based between the PFCP configuration information determination of second network element and second network element PFCP establishment of connection mode, and for establishing PFCP according to determining PFCP establishment of connection mode and second network element Connection.

In order to solve the above technical problems, the embodiment of the invention also provides a kind of computer readable storage medium, the meter Calculation machine readable storage medium storing program for executing is stored with one or more computer program, and one or more of computer programs can be by one A or multiple processors execute, the step of to realize PFCP connection processing method as described above.

The beneficial effects of the present invention are:

PFCP connection processing method, device, network element, system and the storage medium provided according to embodiments of the present invention, passes through First network element obtains the PFCP configuration information for the second network element that the second network element is sent, so that the PFCP based on the second network element matches confidence The determining PFCP establishment of connection mode between the second network element of breath, and then in certain application scenarios, the first network element and the second net Member can carry out the control of PFCP connection foundation according to the PFCP establishment of connection mode, not need manually in the first network element and the PFCP connection is configured on two network elements and establishes mode, is reduced the investment of human resources, while cost is reduced, can also be promoted The accuracy of control is established in PFCP connection, guarantees the stability and reliability of communication.

Other features of the invention and corresponding beneficial effect are described in the aft section of specification, and should be managed Solution, at least partly beneficial effect is apparent from from the record in description of the invention.

Detailed description of the invention

Fig. 1 is the configuration diagram of exemplary 4G network system in the embodiment of the present invention one；

Fig. 2-1 is that user face shows with the framework that control plane mutually separates in exemplary 4G network system in the embodiment of the present invention one It is intended to；

Fig. 2-2 is that user face shows with the framework that control plane mutually separates in exemplary 5G network system in the embodiment of the present invention one It is intended to；

Fig. 3 is the exemplary flow diagram for establishing PDN connection in the embodiment of the present invention one；

Fig. 4 is the flow diagram that exemplary PFCP connection is established in the embodiment of the present invention one；

Fig. 5 is the flow diagram that exemplary SGW, PGW unify that PFCP connection is established under scene in the embodiment of the present invention one；

Fig. 6 is the PFCP connection processing method flow diagram in the embodiment of the present invention one；

Fig. 7 is a kind of flow diagram of the acquisition PFCP configuration information in the embodiment of the present invention one；

Fig. 8 is another flow diagram of the acquisition PFCP configuration information in the embodiment of the present invention one；

Fig. 9 is to determine PFCP link connection and PFCP session connection according to PFCP interface type in the embodiment of the present invention one The flow diagram for establishing mode；

Figure 10 is to connect the mode of foundation with preferred PFCP according to PFCP interface type in the embodiment of the present invention one, is determined The flow diagram for establishing mode of PFCP link connection and PFCP session connection；

Figure 11 is to obtain process by configuration information in the embodiment of the present invention one, according to PFCP interface type and preferably Mode is established in PFCP connection, determines the flow diagram for establishing mode of PFCP link connection and PFCP session connection；

Figure 12 is the structural schematic diagram of the PFCP connection processing unit in the embodiment of the present invention two；

Figure 13 is the structural schematic diagram of the PFCP connection processing unit in the embodiment of the present invention three；

Figure 14 is the structural schematic diagram of determining module in Figure 13；

Figure 15 is the structural schematic diagram of information receiving module in Figure 13；

Figure 16 is the communication system schematic diagram in the embodiment of the present invention four；

Figure 17 is the network element structural schematic diagram in the embodiment of the present invention four.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, below by specific embodiment knot Attached drawing is closed to be described in further detail the embodiment of the present invention.It should be appreciated that specific embodiment described herein is only used to It explains the present invention, is not intended to limit the present invention.

Embodiment one:

In order to make it easy to understand, the present embodiment carries out exemplary description below with reference to the exemplary network architecture, it is to be understood that , method provided by the present embodiment is not limited to the network architecture of example shown below, which is only to be convenient for managing The present embodiment is solved with a kind of example network application environment of providing method.

Shown in Figure 1, a kind of configuration diagram of exemplary 4G system includes 4G wireless subsystem part and 4G core Net system part, wherein 4G wireless subsystem part is also referred to as EUTRAN (Evolved Universal Terrestrial Radio Access Network, the universal terrestrial access network of evolution), it mainly include eNodeB11 (Evolved NodeB, the node B of evolution), 4G core network subsystem part, also referred to as EPC (Evolved Packet Core, point of evolution Group core net), it mainly include HSS12 (Home Subscriber Server, home subscriber data server), MME13 (Mobility Management Entity, mobility management unit), SGW14, PGW15, PCRF16 (Policy and Charging Enforcement Function, strategy and charging regulation function entity), in which:

HSS12 is the permanent storage place of user contracting data, positioned at the home network of user's signing；

MME13 is storage place of the user contracting data in current network, is responsible for the NAS (Non- of terminal to network It is Access Stratum, non-access) layer signaling management, the tracking under user's idle mode and paging management function and carrying pipe Reason；

SGW14 is gateway of the core net to wireless system, is responsible for user plane bearer of the terminal to core net, terminal idle mould Function, lawful interception and the packet routing and forwarding capability of data buffer storage, network side initiating business request under formula；

PGW15 is the net of EPS (Evolved Packet System, the grouping system of evolution) and the exterior network It closes, is responsible for the IP address distribution of terminal, billing function, is grouped the functions such as packet filtering, strategy application；

PCRF16 is responsible for providing policy control and charging regulation to PCEF；

TDF17 is used to the specially treateds such as detect IP data packet, filter.

In order to promote the performance of network system, the network architecture that user face is mutually separated with control plane is can be used in the present embodiment, For example, refer to shown in Fig. 2-1, in a kind of example, the SGW in Fig. 1 can be split into SGW-C21 and SGW-U22, PGW is split At PGW-C23 and PGW-U24, TDF splits into TDF-C25 and TDF-U26；Certainly, in 5G system, there is also by control plane with The network element framework of user face separation, such as a kind of example is referring to fig. 2 shown in -2, between SMF27 the and 5G UPF28 in 5G framework PFCP interface type be N4.In use, the control planes such as SGW-C21, PGW-C23, TDF-C25, SMF27 unit can be independent It constitutes a CPF entity to use, flexible combination can constitute a CPF entity use, such as SGW-C21, PGW- according to demand C23 combination (unifying) is used at a CPF entity；Correspondingly, SGW-U22, PGW-U24, TDF-U26,5G UPF28 etc. are used Family face unit can also be separately formed a UPF entity and use, and one UPF entity of flexible combination composition can make according to demand With, such as SGW-U22, PGW-U24 combination (unifying) are at a UPF entity use.Even, when 4G, 5G are merged, SGW- C21, PGW-C23, TDF-C25, SMF27 can permeate an integrated CPF entity entirely, and SGW-U22, PGW-U24, TDF- U26,5G UPF28 can permeate an integrated UPF entity entirely.

Under the network architecture shown in Fig. 1, UE request establishes PDN (Public Data Network, public data network) even A kind of flow diagram connect is shown in Figure 3, comprising:

S301, UE initiate PDN connection to MME and establish request；

S302, MME are that UE selects suitable SGW, PGW；

S303, MME initiate session establishment request to SGW；

S304, SGW send session establishment request to PGW；

After S305, PGW receive session establishment request, IP address is distributed for UE, creates requested carrying, is returned to SGW Session establishment response；

S306, SGW return to session establishment response to MME；

S307, MME return to PDN connection establishment response to UE, including the IP address distributed for UE, and created Information is carried, etc..

When the framework separated using control plane and user face, then need to establish PFCP connection between CPF and UPF, it should PFPC connection includes PFCP link (PFCP Association) connection and PFCP session connection；A kind of exemplary PFCP connection is built Vertical process is shown in Figure 4 comprising:

S401, CPF electrifying startup；

It needs to establish PFCP link connection between CPF and UPF, for providing stable transmission for the conversation message for UE Channel；

S402, CPF send PFCP request for building link (PFCP Association Establishment to UPF Request)；

S403, UPF receive PFCP request for building link, return to PFCP link establishment to CPF and respond (PFCP Association Establishment Response)；

S404 has detected session establishment request；

Hereafter, when needing to create PDN connection for UE, CPF needs to create an independent PFCP session for each UE；

S405, CPF send the request of PFCP session establishment to UPF；

S406, UPF receive the request of PFCP session establishment, return to the response of PFCP session establishment to CPF.

In Fig. 4, CPF, UPF can't exchange the physical interface that CPF, UPF are supported when establishing PFCP link connection Type (such as Sxa/Sxb/Sxc) will not indicate that CPF acts as SGW-C, PGW-C or TDF-C, will not indicate that UPF is Serve as SGW-U, PGW-U or TDF-U.Therefore, under the process that SGW, PGW unify, CPF (SGW-C+PGW-C) can be to UPF (SGW-U+PGW-U) PFCP link connection establishment process twice is initiated, and is directed to the same UE, CPF can also initiate two to UPF Secondary PFCP session connection process, such as a kind of instantiation procedure are shown in Figure 5, comprising:

S501, CPF electrifying startup；

S502, CPF send PFCP request for building link to UPF, for establishing PFCP link between SGW-C and SGW-U；

S503, UPF receive PFCP request for building link, return to PFCP link establishment response to CPF；

S504, CPF send PFCP request for building link to UPF, for establishing PFCP link between PGW-C and PGW-U；

S505, UPF receive PFCP request for building link, return to PFCP link establishment response to CPF；

S506 has detected session establishment request；

S507, CPF send the request of PFCP session establishment to UPF, for establishing PFCP session between SGW-C and SGW-U；

S508, UPF receive the request of PFCP session establishment, return to the response of PFCP session establishment to CPF；

S509, CPF send the request of PFCP session establishment to UPF, for establishing PFCP session between PGW-C and PGW-U；

S510, UPF receive the request of PFCP session establishment, return to the response of PFCP session establishment to CPF.

Above-mentioned PFCP connection building process shown in fig. 5 introduces unnecessary process redundancy, significantly reduces efficiency And resource utilization.For this problem, a kind of related way is to pass through network management personnel manually in CPF entity and UPF entity It is locally configured in information and configures corresponding PFCP connection and establish mode, then when needing to establish PFCP connection, CPF is according to being matched The information set determines only to initiate single PFCP request for building link and/or the request of single PFCP session establishment to UPF.However, this Kind way needs the manual configuration information on CPF and UPF setting CPF, UPF equipment of same operator or same manufacturer It can be applicable in reluctantly in the case that standby number amount and type are less, but with the increase of number of devices amount and type or for different operations CPF, UPF equipment of quotient or different vendor, the way there is significant limitation, or even difficult to realize, especially roam Under application scenarios.

In this regard, a kind of PFCP connection processing method is present embodiments provided, it is shown in Figure 6, comprising:

S601, the first network element obtain the PFCP configuration information for the second network element that the second network element is sent.

In the present embodiment, the first network element obtains the time point of the PFCP configuration information of the second network element and acquisition modes can be with Flexibly set according to application scenarios, for example including but be not limited to establish before PFCP connect in the first network element and the second network element, lead to It crosses configuration information and obtains process acquisition, can also establish in PFCP connection procedure in the first network element with the second network element and be handed over by corresponding Mutual information obtains.

It should be understood that first network element of the present embodiment can be CPF entity, the second network element is UPF entity；Or, first Network element is UPF entity, and the second network element is CPF entity.

S602, the first network element are built based on the PFCP configuration information determining PFCP connection between the second network element of the second network element Cube formula.

Mode includes at least the independent foundation of connection to establishing in the present embodiment and two ways is established in connection unification.

It optionally, can also building the PFCP determined connection after the first network element determines PFCP establishment of connection mode Cube formula issues the second network element；It and optionally, in some instances can be by the second network element according to the PFCP establishment of connection of acquisition Mode carries out subsequent PFCP establishment of connection control, certainly can also be by the first network element according to determining PFCP establishment of connection mode Carry out the control of subsequent PFCP establishment of connection or the first network element and the second network element combine according to the PFCP establishment of connection mode into The subsequent PFCP establishment of connection control of row.

S603, the first network element carry out PFCP according to PFCP establishment of connection mode with the second network element and connect the control established.

It should be understood that can be according to concrete application field to the specific control process of PFCP establishment of connection in the present embodiment Scape flexibly determines.For example, when above-mentioned PFCP establishment of connection mode is to establish PFCP with the second network element in the first network element to connect it Preceding determination, then can control according to the PFCP establishment of connection mode carry out PFCP connection (e.g. unification establish or it is independent It establishes)；If above-mentioned PFCP establishment of connection mode is to establish in PFCP connection procedure to determine in the first network element and the second network element, Control is specifically then determined how according to the PFCP establishment of connection mode and current PFCP establishment of connection situation.

It should be understood that in S603 can by the first network element initiate carry out PFCP connection, can also be initiated by the second network element into Row PFCP connection.

Optionally, PFCP connection includes at least one of PFCP link connection and PFCP session connection in the present embodiment, Namely the mode of establishing of PFCP link connection can be determined in S602 according to PFCP configuration information, and/or determine PFCP session connection Establish mode.

Optionally, in the present embodiment, the PFCP configuration information of itself can be also sent to the second network element by the first network element, with For when needed, the second network element determines PFCP establishment of connection mode according to the PFCP configuration information of the first network element.

In order to make it easy to understand, below the present embodiment using the PFCP configuration information acquisition modes of several second network elements as example into Row explanation.

Example one:

First network element receives the PFCP configuration request that the second network element is sent, which includes second The PFCP configuration information of network element.

For example, it is assumed that the first network element is UPF entity, the second network element is CPF entity, and a kind of example acquisition process is referring to Fig. 7 It is shown, comprising:

S701:CPF electrifying startup；

S702, CPF send PFCP configuration request to UPF, and the PFCP which can carry CPF matches Confidence breath；

After S703, UPF receive PFCP configuration request, the response of PFCP configuration information is returned to CPF；Optionally, should PFCP configuration information responds the PFCP configuration information that can carry UPF, can not also carry.

Example two:

First network element receives the PFCP configuration information response that the second network element is sent, and PFCP configuration information response includes second The PFCP configuration information of network element.

For example, it is assumed that the first network element is CPF entity, the second network element is UPF entity, and process similar to Figure 7, CPF can be to UPF sends PFCP configuration request, and optionally, which can carry the PFCP configuration information of CPF, also not It does not carry；After UPF receives PFCP configuration request, the response of PFCP configuration information is returned to CPF；The PFCP configuration information is rung The PFCP configuration information of UPF should then be carried.

Optionally, above example one and example two can execute before the foundation of PFCP link connection.

Example three:

First network element receives the PFCP request for building link that the second network element is sent, which includes second The PFCP configuration information of network element.

For example, it is assumed that the first network element is UPF entity, the second network element is CPF entity, and a kind of example acquisition process is referring to Fig. 8 It is shown, comprising:

S801, CPF electrifying startup；

S802, CPF send PFCP request for building link to UPF, and the PFCP which can carry CPF matches Confidence breath；

After S803, UPF receive PFCP request for building link, PFCP link connection is created, PFCP link is returned to CPF and builds Vertical response；Optionally, PFCP configuration information response can carry the PFCP configuration information of UPF, can not also carry.

Example four:

First network element receives the PFCP link establishment response that the second network element is sent, and PFCP link establishment response includes second The PFCP configuration information of network element.

For example, it is assumed that the first network element is CPF entity, the second network element is UPF entity, and process similar to Figure 8, CPF can be to UPF sends PFCP request for building link, and optionally, which can carry the PFCP configuration information of CPF, can also It does not carry；After UPF receives PFCP request for building link, PFCP link establishment response is returned to CPF；The PFCP link establishment is rung The PFCP configuration information of UPF should then be carried.

In the present embodiment, the PFCP configuration information of the second network element may include the letter that arbitrarily can determine that PFCP connection type Breath, for example including but be not limited to the ability information of the second network element and connected in the mode of foundation extremely with the preferred PFCP of the second network element Few one kind.First network element can according to itself ability information and the PFCP configuration information of the second network element, determine the first network element with PFCP establishment of connection mode between second network element；In order to make it easy to understand, the present embodiment is said below with reference to several examples It is bright.

Example one:

The PFCP configuration information of second network element can only include the ability information of the second network element, which can reflect the The role that two network elements can serve as e.g. functions simultaneously as in the control planes unit such as SGW-C, PGW-C, TDF-C, SMF at least Two roles still individually serve as some in above-mentioned control plane unit, or function simultaneously as SGW-U, PGW-U, TDF-U, At least two role in the user plane units such as 5G UPF still individually serves as the angle of some in above-mentioned control plane unit Color.

For example, the ability information in this example may include the PFCP interface type that network element is supported, shown in example as above, PFCP interface type in the present embodiment includes but is not limited to Sxa interface, Sxb interface, Sxc interface, at least one in N4 interface Kind.Such as when the second network element is the CPF entity that SGW-C, PGW-C unify or is the UPF entity of SGW-U, PGW-U unification, the The PFCP interface type that PFCP configuration information in two network elements includes then includes Sxa interface, Sxb interface.

In order to make it easy to understand, this example combines a kind of application scenarios to be illustrated.Set in this application scene the first network element as CPF entity, the second network element is UPF entity, and in this application scene, during PFCP link establishment, CPF and UPF are interacted The PFCP interface type supported, so that the PFCP interface type that CPF is supported according to UPF, determines how to establish PFCP link At least one of connection and PFCP session connection；A kind of example flow is shown in Figure 9, comprising:

S901, CPF electrifying startup；

S902, CPF send PFCP request for building link to UPF；

Optionally, in this step, CPF can carry the PFCP interface type (Supported itself supported Interface Type, SIT)；If CPF supports Sxa, Sxb interface, CPF to indicate that PFCP interface type is SIT=Sxa+ simultaneously Sxb, if CPF only supports Sxa, SIT=Sxa, the SIT=Sxb if CPF only supports Sxb sets CPF in this example while supporting Sxa, Sxb interface；And it should be understood that this step PFCP request for building link can not also carry the PFCP itself supported and connect Mouth type；

After S903, UPF receive PFCP request for building link, PFCP link connection is created, returns to PFCP link establishment response；

In this step, UPF carries the PFCP interface type itself supported, if UPF supports Sxa, Sxb interface simultaneously, Then UPF indicates that PFCP interface type is SIT=Sxa+Sxb；If UPF only supports Sxa, SIT=Sxa, if UPF only supports Sxb Then SIT=Sxb sets UPF in this example while supporting Sxa interface and Sxb interface；

S904, after CPF knows the interface of UPF, the interface that can be supported according to the interface type and UPF that itself is supported What type determined PFCP link connection and/or PFCP session connection establishes mode；

For example, in this example, CPF has found itself and UPF while supporting Sxa, Sxb interface, then CPF can be determined in CPF A PFCP link is only established between UPF, i.e. the mode of establishing of PFCP link connection is that PFCP link is unified (certainly according to demand The mode of establishing that can determine PFCP link connection is that PFCP link is independent etc.) and/or CPF can determine for same UE, A PFCP session is established between CPF and UPF, i.e. the mode of establishing of PFCP session connection is that PFCP session is unified (certainly according to need Seeking the mode of establishing that can determine PFCP session connection is PFCP session independence etc.)；

In this application scene, mode is established as the unification of PFCP link due to determining PFCP link connection, and S902 A PFCP link connection is had been set up to S903, therefore control at this time is then believed that and completes PFCP link connection；When So, if in this application scene determine PFCP link connection establish mode be PFCP link independence when, control at this time It then can be that a PFCP link connection is established by the process of similar S902 to S903 again.

S905, hereafter, when needing to establish PDN connection for certain UE, CPF initiates the request of PFCP session establishment to UPF；

According to the decision in aforementioned S904 step, CPF only initiates a PFCP session establishment request to UPF；

S906, CPF initiate the request of PFCP session establishment to UPF；

S907, UPF receive the request of PFCP session establishment, establish corresponding PFCP session for UE, return to PFCP session to CPF Establish response.

Example two:

The PFCP configuration information of second network element may include the second network element ability information and the second network element it is preferred Mode is established in PFCP connection；And it should be understood that establish in mode can for the preferred PFCP connection of the second network element in this example It also may include PFCP link connection only to include in a manner of the establishing of one of them in PFCP link connection and PFCP session connection Mode is established with the combination of PFCP session connection；And its mode of establishing for including can be one, can also be it is multiple, when being more When a, this multiple mode of establishing can be ranked up by priority ranking rule for subsequently selected.With preferred in this example PFCP connection, which establishes the group that mode includes PFCP link connection and PFCP session connection and is combined into example, to be illustrated, which includes At least one of combination below:

The unification of PFCP link, PFCP session unification；

The unification of PFCP link, PFCP session are independent；

PFCP link is independent, and PFCP session is independent.

In order to make it easy to understand, this example is illustrated also in relation with a kind of application scenarios.The first network element is set in this application scene For CPF entity, the second network element is UPF entity, and in this application scene, during PFCP link establishment, CPF and UPF are mutually handed over Mode is established in the preferred PFCP connection of the PFCP interface type and UPF mutually supported, thus what CPF was supported according to UPF Mode is established in PFCP interface type and preferred PFCP connection, determines how to establish PFCP link connection and PFCP session connection At least one of；A kind of example flow is shown in Figure 10, comprising:

S1001, CPF electrifying startup；

S1002, CPF send PFCP request for building link to UPF；

Optionally, in this step, CPF can carry the PFCP interface type (Supported itself supported Interface Type, SIT) mode of foundation (Preferred PFCP Type, PPT) is connected with the preferred PFCP of CPF；Originally show CPF is set in example while supporting Sxa, Sxb interface；

After S1003, UPF receive PFCP request for building link, PFCP link connection is created, PFCP link establishment is returned and rings It answers；

In this step, UPF carries the PFCP interface type itself supported and connects foundation side with the preferred PFCP of UPF Formula sets UPF in this example while supporting Sxa interface and Sxb interface；

It includes at least one of following manner that mode is established in preferred PFCP connection in this example:

A) unification of PFCP link (is Sxa link connection and the unification of Sxb link connection, in other application in this example Can be corresponded in scene and change interface type), PFCP session unification (is that the Sxa session of UE and Sxb session are closed in this example One, can be corresponded in other application scenarios and change interface type change)；

B) PFCP link is unified, and independent PFCP session (is that the Sxa session of UE and Sxb session are independently built in this example It is vertical, can be corresponded in other application scenarios and change interface type)；

C) it (is that Sxa link connection and Sxb link connection are independent, in other application that PFCP link is independent in this example Can be corresponded in scene and change interface type), PFCP session is independent；

S1004 can connect after CPF knows the interface of UPF according to what the interface type and UPF that itself is supported were supported Mouthful type connect the mode of establishing of determination PFCP link connection and PFCP session connection with preferred PFCP, such as:

When determination needs to establish independent PFCP link connection and PFCP session connection, subsequent CPF is initiated again to UPF PFCP connection building process, and it is subsequent when resettling PFCP session connection, PFCP session is independently initiated to Sxa, Sxb interface Establishing process；

When only establishing a PFCP link connection, but when PFCP session is independently established, CPF is not repeated to initiate to UPF PFCP link connection Establishing process, but PFCP session establishment process is initiated there is still a need for independent for Sxa, Sxb interface；

When PFCP connection, PFCP session are unified, CPF is not repeated that initiating PFCP link connection to UPF established Journey, the subsequent PFCP session for only establishing a unification, while being applied to Sxa, Sxb interface；This example hypothesis is determined as this feelings Condition；

In addition, it is to be understood that determining itself between the second network element (such as UPF) in the first network element (such as CPF) Ability information (such as PFCP interface type) when the preferred PFCP connection of the second network element not being supported to establish mode, can both Ability information supported establish subject to mode progress PFCP establishment of connection control, also capable of emitting ability such as mismatches at the alarm Prompt；Determine that (such as PFCP connects itself ability information between the second network element (such as UPF) in the first network element (such as CPF) Mouthful type) when the preferred PFCP connection of the second network element being supported to establish mode, with the preferred PFCP connection foundation of the second network element It is controlled subject to mode；It, then can flexible setting itself in the first network element itself there is also when PFCP establishment of connection mode The priority that mode connect the mode of foundation with the preferred PFCP of the second network element is established in preferred PFCP connection, such as itself is arranged Preferred PFCP connection establish mode priority be higher or lower than the second network element preferred PFCP connection establish mode, and It takes this as the standard and carries out subsequent selection, or be directly subject to the preferred PFCP connection of the second network element to establish mode and carry out subsequent choosing It selects.

S1005, hereafter, when needing to establish PDN connection for certain UE, CPF initiates the request of PFCP session establishment to UPF；

According to the decision in aforementioned S1004 step, CPF only initiates a PFCP session establishment request to UPF；

S1006, CPF initiate the request of PFCP session establishment to UPF；

S1007, UPF receive the request of PFCP session establishment, establish corresponding PFCP session for UE, return to PFCP meeting to CPF Words establish response.

Example three:

The PFCP configuration information of second network element only the preferred PFCP connection including the second network element can establish mode.Originally show The preferred PFCP connection of network element is established mode and is associated with the ability information of network element itself in example, namely in the second network element local terminal, Itself preferred PFCP establishment of connection mode is selected according to the ability information of the second network element, such first network element is getting The preferred PFCP connection of two network elements is established after mode, can be established mode according to the preferred PFCP connection of the second network element and be obtained The ability information of second network element, for example including but be not limited to the PFCP interface type that the second network element supported, and then can be based on the The ability information of two network elements and its preferred PFCP connection establish mode and determine how to establish PFCP link connection and PFCP meeting At least one of words connection, subsequent determination process essence is identical as the determination process in above-mentioned example two.

According to above-mentioned example it is found that the respective PFCP configuration interacted between the first network element and the second network element in this example In information, specifically the ability information including respective network element, which connects which of the mode of foundation with preferred PFCP, flexibly to set It sets.In order to make it easy to understand, with ability information for PFCP interface type below the present embodiment, SGW and PGW unification, and by matching The PFCP configuration information for setting acquisition of information process acquisition network element is illustrated for example.

In this example, before the foundation of PFCP link connection, CPF and UPF first pass through configuration information and obtain process, exchange CPF The interface type supported with UPF, or further interact preferred PFCP connection and establish mode.To which CPF is supported according to UPF Interface type, or mode is further established according to preferred PFCP connection, determines PFCP link connection and PFCP session connection Establish mode, a kind of instantiation procedure is shown in Figure 11, comprising:

S1101, CPF electrifying startup；

S1102, CPF send PFCP configuration request to UPF；

In this step, optionally, CPF carries the interface type SIT itself supported, and still optionally further, CPF is also Itself preferred PFCP connection can be carried and establish mode.

S1103, UPF return to the response of PFCP configuration information to CPF；

In this step, UPF carries the interface type SIT itself supported, and optionally, it is excellent that CPF can also carry itself Mode is established in the PFCP connection of choosing；

S1104, determine PFCP link connection and PFCP session connection establishes mode；

The interface type SIT that UPF supported, preferred PFCP connection foundation side are known by S1102~S1103, CPF Formula may thereby determine that how to establish PFCP link connection and how to establish PFCP session connection；

In this process, it is assumed that CPF is final true according to acquired UPF configuration information and CPF own configuration information Fixed mode of establishing is the unification of PFCP link, PFCP session unification；

S1105, CPF initiate PFCP request for building link to UPF；

S1106, UPF return to PFCP link establishment response to CPF；

According to S1104's it is assumed that the PFCP link connection established in this step while being applied to Sxa, Sxb interface, I.e. PFCP link is unified；

S1107, hereafter, when needing to establish PDN connection for certain UE, CPF initiates the request of PFCP session establishment to UPF；

S1108, CPF initiate the request of PFCP session establishment to UPF；

S1109, UPF return to the response of PFCP session establishment to CPF.

According to S1104's it is assumed that the PFCP session connection established in this step while being applied to Sxa, Sxb interface, I.e. PFCP session is unified.

It should be pointed out that PFCP link connection Establishing process or PFCP configuration information obtain process in the present embodiment, Other than being initiated in above-mentioned example by CPF, it can also be initiated by UPF, in the process, can equally be interacted between CPF and UPF Configuration information.

By applying the PFCP connection processing method of example offer, in certain implementation processes, the first network element can receive second The PFCP configuration information for the second network element that network element is sent, the first network element can be according to itself PFCP configuration information and the second network elements PFCP configuration information determines the PFCP link connection between the first network element and the second network element and/or the foundation of PFCP session connection etc. Mode is arranged PFCP link connection without network administrator for the network element in network system one by one and establishes mode, reduces manpower The investment of resource, in addition, the first network element can match according to the PFCP of the first network element and the second network element during some embodiments Confidence, which ceases, determines that PFCP link connection and/or PFCP session connection, can effectively and accurately using establishing by the way of unifying Reduce redundant link connection, redundancy session, raising efficiency.

Embodiment two:

The embodiment of the present invention provides a kind of PFCP connection processing unit that can be applied to the first network element, referring to Figure 12 institute Show comprising:

Data obtaining module 1201, the PFCP configuration information of second network element for obtaining the transmission of the second network element.? In the present embodiment, the first network element obtains the time point of the PFCP configuration information of the second network element and acquisition modes can be according to applied field Scape is flexibly set, for example including but be not limited to establish before PFCP connect in the first network element and the second network element, pass through configuration information It obtains process to obtain, can also establish in PFCP connection procedure in the first network element with the second network element and be obtained by corresponding interactive information It takes, such as:

Data obtaining module 1201 is used to receive the PFCP configuration request of the second network element transmission, from the PFCP received The PFCP configuration information of the second network element is obtained in configuration request；

Or, data obtaining module 1201 is used to receive the PFCP configuration information response of the second network element transmission, from what is received The PFCP configuration information of the second network element is obtained in the response of PFCP configuration information；

Or, data obtaining module 1201 is used to receive the PFCP request for building link of the second network element transmission, from what is received The PFCP configuration information of the second network element is obtained in PFCP request for building link；

Or, data obtaining module 1201 is used to receive the PFCP link establishment response of the second network element transmission, from what is received The PFCP configuration information of the second network element is obtained in PFCP link establishment response.

In the present embodiment, optionally, data obtaining module 1201 can also be used to send the first network element to the second network element PFCP configuration information, so that when needed, the second network element determines building for PFCP connection according to the PFCP configuration information of the first network element Cube formula；And optionally, information category included by the PFCP configuration information of the first network element can be with the second network element in the present embodiment PFCP included by information category it is identical, can also be set as different according to concrete application scene.

Processing module 1202, for the PFCP configuration information based on the second network element, determine the first network element and the second network element it Between PFCP establishment of connection mode；Mode includes at least the independent foundation of connection to establishing in the present embodiment and connection unification establishes two Kind mode.Optionally, processing module 1202 can also be used in after determining PFCP establishment of connection mode, can will determine PFCP establishment of connection mode issues the second network element.

Connection establishment module 1203, the PFCP establishment of connection mode for being determined according to processing module 1202, to first PFCP establishment of connection is controlled between network element and the second network element.

It should be understood that connection establishment module 1203 is to the specific control process of PFCP establishment of connection in the present embodiment It can flexibly be determined according to concrete application scene.For example, when above-mentioned PFCP establishment of connection mode is in the first network element and the second net It is predetermined that member establishes PFCP connection, then connection establishment module 1203 is controllable carries out according to the PFCP establishment of connection mode PFCP connection (e.g. unification is established or individually established)；If above-mentioned PFCP establishment of connection mode is in the first network element and Two network elements, which are established, to be determined in PFCP connection procedure, then connection establishment module 1203 can according to the PFCP establishment of connection mode and Current PFCP establishment of connection situation specifically determines how control.It should be understood that in the present embodiment, it can be by the first network element It initiates to carry out PFCP connection, can also be initiated to carry out PFCP connection by the second network element.

Optionally, PFCP connection includes at least one of PFCP link connection and PFCP session connection in the present embodiment, Namely processing module 1202 can determine the mode of establishing of PFCP link connection according to PFCP configuration information, and/or determine PFCP meeting Talk about establishment of connection mode.

In the present embodiment, the PFCP configuration information of the second network element may include the letter that arbitrarily can determine that PFCP connection type Breath, for example including but be not limited to the ability information of the second network element and connected in the mode of foundation extremely with the preferred PFCP of the second network element Few one kind.Processing module 1202 can determine according to the ability information of the first network element and the PFCP configuration information of the second network element PFCP establishment of connection mode between one network element and the second network element；In order to make it easy to understand, the present embodiment shows below with reference to several Example is illustrated.

For example, the PFCP configuration information of the second network element can only include the ability information of the second network element in a kind of example, it should Ability information can reflect the role that the second network element can serve as, and e.g. function simultaneously as the control such as SGW-C, PGW-C, TDF-C, SMF At least two role in face unit processed still individually serves as some in above-mentioned control plane unit, or functions simultaneously as At least two role in the user plane units such as SGW-U, PGW-U, TDF-U, 5G UPF still individually serves as above-mentioned control plane The role of some in unit.For example, the ability information in this example may include the PFCP interface type that network element is supported, Shown in example as above, the PFCP interface type in the present embodiment includes but is not limited to that Sxa interface, Sxb interface, Sxc interface, N4 connect At least one of mouthful.It such as when the CPF entity that the second network element is SGW-C, PGW-C unification or is what SGW-U, PGW-U unified When UPF entity, the PFCP interface type that the PFCP configuration information in the second network element includes then includes Sxa interface, Sxb interface.? In a kind of application scenarios, if the first network element is CPF entity, the second network element is UPF entity, in this application scene, in PFCP link In establishment process, CPF and UPF are responded by PFCP request for building link or PFCP link establishment and are interacted supported PFCP Interface type, thus processing module 1202 can according to the PFCP type that CPF is supported and PFCP interface type that UPF is supported, Determine how to establish at least one of PFCP link connection and PFCP session connection.

In another example in a kind of example, the PFCP configuration information of the second network element may include the ability information of the second network element with And second the preferred PFCP connection of network element establish mode；And it should be understood that in this example the second network element it is preferred PFCP connection, which is established in mode, only to establish mode including one of them in PFCP link connection and PFCP session connection, It may include that mode is established in the combination of PFCP link connection and PFCP session connection；And its mode of establishing for including can be one It is a, it can also be multiple, when to be multiple, this multiple mode of establishing can be ranked up for subsequent choosing by priority ranking rule It selects.It include that the group of PFCP link connection and PFCP session connection is combined into example in such a way that preferred PFCP connection is established in this example It is illustrated, which includes at least one of following combination:

The unification of PFCP link, PFCP session unification；

The unification of PFCP link, PFCP session are independent；

PFCP link is independent, and PFCP session is independent.

In order to make it easy to understand, this example is illustrated also in relation with a kind of application scenarios.The first network element is set in this application scene For CPF entity, the second network element is UPF entity, and in this application scene, during PFCP link establishment, CPF and UPF are by matching Confidence breath interacts institute by PFCP request for building link or PFCP link establishment response in PFCP connection establishment process Mode is established in the preferred PFCP connection of the PFCP interface type and UPF of support, so that processing module 1202 can be according to CPF's Ability information connects the mode of foundation with the UPF PFCP interface type supported and preferred PFCP, determines how to establish PFCP At least one of link connection and PFCP session connection.

In another example the PFCP configuration information of the second network element can be only preferred including the second network element in a kind of example Mode is established in PFCP connection.Mode is established in the preferred PFCP connection of network element in this example and the ability information of network element itself is closed Connection, namely in the second network element local terminal, itself preferred PFCP establishment of connection mode is selected according to the ability information of the second network element, In this way processing module 1202 by the preferred PFCP connection that data obtaining module 1201 gets the second network element establish mode it Afterwards, mode can be established according to the preferred PFCP connection of the second network element and obtain the ability information of the second network element, for example including but not It is limited to the PFCP interface type that the second network element is supported, and then can ability information and its preferred PFCP based on the second network element Connection establishes mode and determines how to establish at least one of PFCP link connection and PFCP session connection.

According to above-mentioned example it is found that the respective PFCP configuration interacted between the first network element and the second network element in this example In information, specifically the ability information including respective network element, which connects which of the mode of foundation with preferred PFCP, flexibly to set It sets.

It should be understood that above- mentioned information obtain the function of module 1201, processing module 1202 and connection establishment module 1203 It can be realized by the processor of network element.

And it should be understood that the PFCP connection processing unit in the present embodiment can also be independently of the peripheral hardware of the first network element It sets.

The PFCP connection processing unit provided through this embodiment, in certain implementation processes, data obtaining module 1201 The PFCP configuration information of the second network element of two network elements transmission can be obtained, processing module 1202 can match confidence according to the first network element PFCP The PFCP configuration information of breath and the second network element determines that the PFCP link connection between the first network element and the second network element establishes mode, nothing Needing network administrator for the network element in network system, manual configuration PFCP link connection establishes mode one by one, reduces human resources Investment, in addition, processing module 1202 can match according to the PFCP of the first network element and the second network element during some embodiments Confidence breath, respectively corresponds multiple control plane units and user plane unit (this multiple control plane list in the first network element and the second network element Member is corresponding with user plane unit) when, PFCP establishment of connection is carried out by the way of unification, namely in the first network element and second A PFCP link connection is established in network element and establishes a PFCP session for a UE, is reduced in the first network element and second The process that redundancy PFCP link connection is established between network element, improves efficiency.

Embodiment three:

A kind of PFCP connection processing unit is present embodiments provided, it is shown in Figure 13, comprising:

Information receiving module 1301, the PFCP configuration information of the second network element for receiving the transmission of the second network element；Information connects Receiving module 1301 can establish before PFCP connect in the first network element and the second network element, pass through configuration information acquisition process acquisition second The PFCP configuration information of network element can also be established in the first network element and the second network element and obtain the second network element in PFCP connection procedure PFCP configuration information.

Determining module 1302, for the PFCP configuration information based on the second network element, determine the first network element and the second network element it Between PFCP establishment of connection mode；Mode includes at least the independent foundation of connection to establishing in the present embodiment and connection unification establishes two Kind mode.Optionally it is determined that module 1302, it may also be used for after determine PFCP establishment of connection mode, can will determine PFCP establishment of connection mode issues the second network element.

Processing module 1303 is connected, the PFCP establishment of connection mode for determining according to determining module 1302, to first PFCP establishment of connection is controlled between network element and the second network element.

Processing module 1303 is connected in the present embodiment can be according to specifically answering to the specific control process of PFCP establishment of connection It is flexibly determined with scene.For example, when above-mentioned PFCP establishment of connection mode is to establish PFCP in the first network element and the second network element to connect It connects predetermined, then connects that processing module 1303 is controllable to carry out PFCP connection (example according to the PFCP establishment of connection mode Unification is established or is individually established in this way)；If above-mentioned PFCP establishment of connection mode is established in the first network element and the second network element It is determined in PFCP connection procedure, then connecting processing module 1303 can connect according to the PFCP establishment of connection mode and current PFCP The situation of establishing connect specifically determines how control.It should be understood that in the present embodiment, can initiate to carry out by the first network element PFCP connection can also be initiated to carry out PFCP connection by the second network element.

Optionally, PFCP connection processing unit may also include information sending module 1304, for by the first network element by PFCP configuration information is sent to the second network element.

Optionally, PFCP connection includes at least one of PFCP link connection and PFCP session connection in the present embodiment, Namely determining module 1302 can determine the mode of establishing of PFCP link connection according to PFCP configuration information in the present embodiment, and/or Determine PFCP session connection establishes mode.

Shown in Figure 14, determining module 1302 may include that link connection determines submodule 13021 and meeting in the present embodiment Words, which connect, determines at least one of submodule 13022；

Link connection determines submodule 13021 for the PFCP configuration information based on the second network element, determine the first network element with PFCP link connection establishes mode between second network element；

Session connection determines submodule 13022 for the PFCP configuration information based on the second network element, determine the first network element with PFCP session connection establishes mode between second network element.

Shown in Figure 15, the information receiving module 1301 in the present embodiment may include any one in following submodule It is a:

Configuration request receiving submodule 13011, for receiving the PFCP configuration request of the second network element transmission, from The PFCP configuration information of the second network element is obtained in the PFCP configuration request received；

Configuration information responds receiving submodule 13012, for receiving the PFCP configuration information response of the second network element transmission, from The PFCP configuration information of the second network element is obtained in the PFCP configuration information response received；

Request for building link receiving submodule 13013, for receiving the PFCP request for building link of the second network element transmission, from The PFCP configuration information of the second network element is obtained in the PFCP request for building link received；

Link establishment responds receiving submodule 13014, for receiving the PFCP link establishment response of the second network element transmission, from The PFCP configuration information of the second network element is obtained in the PFCP link establishment response received.

In the present embodiment, the PFCP configuration information of the second network element may include the letter that arbitrarily can determine that PFCP connection type Breath, for example including but be not limited to the ability information of the second network element and connected in the mode of foundation extremely with the preferred PFCP of the second network element Few one kind.Determining module 1302 can determine according to the ability information of the first network element and the PFCP configuration information of the second network element PFCP establishment of connection mode between one network element and the second network element.

For example, the PFCP configuration information of the second network element can only include the ability information of the second network element in a kind of example, it should Ability information can reflect the role that the second network element can serve as, and e.g. function simultaneously as the control such as SGW-C, PGW-C, TDF-C, SMF At least two role in face unit processed still individually serves as some in above-mentioned control plane unit, or functions simultaneously as At least two role in the user plane units such as SGW-U, PGW-U, TDF-U, 5G UPF still individually serves as above-mentioned control plane The role of some in unit.For example, the ability information in this example may include the PFCP interface type that network element is supported, Shown in example as above, the PFCP interface type in the present embodiment includes but is not limited to that Sxa interface, Sxb interface, Sxc interface, N4 connect At least one of mouthful.It such as when the CPF entity that the second network element is SGW-C, PGW-C unification or is what SGW-U, PGW-U unified When UPF entity, the PFCP interface type that the PFCP configuration information in the second network element includes then includes Sxa interface, Sxb interface.? In a kind of application scenarios, if the first network element is CPF entity, the second network element is UPF entity, in this application scene, in PFCP link In establishment process, CPF and UPF are responded by PFCP request for building link or PFCP link establishment and are interacted supported PFCP Interface type, so that it is determined that module 1302 can according to the PFCP type that CPF is supported and PFCP interface type that UPF is supported, Determine how to establish at least one of PFCP link connection and PFCP session connection.

The unification of PFCP link, PFCP session unification；

The unification of PFCP link, PFCP session are independent；

PFCP link is independent, and PFCP session is independent.

In order to make it easy to understand, this example is illustrated also in relation with a kind of application scenarios.The first network element is set in this application scene For CPF entity, the second network element is UPF entity, and in this application scene, during PFCP link establishment, CPF and UPF are by matching Confidence breath interacts institute by PFCP request for building link or PFCP link establishment response in PFCP connection establishment process Mode is established in the preferred PFCP connection of the PFCP interface type and UPF of support, so that it is determined that module 1302, it can be according to CPF Ability information connect the mode of foundation with the UPF PFCP interface type supported and preferred PFCP, determine how to establish At least one of PFCP link connection and PFCP session connection.

In another example the PFCP configuration information of the second network element can be only preferred including the second network element in a kind of example Mode is established in PFCP connection.Mode is established in the preferred PFCP connection of network element in this example and the ability information of network element itself is closed Connection, namely in the second network element local terminal, itself preferred PFCP establishment of connection mode is selected according to the ability information of the second network element, Determining module 1302 in this way, by the preferred PFCP connection that data obtaining module 1201 gets the second network element establish mode it Afterwards, mode can be established according to the preferred PFCP connection of the second network element and obtain the ability information of the second network element, for example including but not It is limited to the PFCP interface type that the second network element is supported, and then can ability information and its preferred PFCP based on the second network element Connection establishes mode and determines how to establish at least one of PFCP link connection and PFCP session connection.

It, can also and it should be understood that the PFCP connection processing unit in the present embodiment can be set in the first network element Independently of being arranged except the first network element.

PFCP connection processing unit provided in this embodiment can obtain the second of two network elements transmission in certain implementation processes The PFCP configuration information of network element, and automatically determine out based on the PFCP configuration information PFCP between the first network element and the second network element Link connection establishes mode, is the network element manual configuration PFCP link connection foundation one by one in network system without network administrator Mode, do not need manually on the first network element and the second network element configure PFCP connection establish mode, reduce human resources Investment, while cost is reduced, can also be promoted PFCP connection establish control accuracy, guarantee communication stability and reliably Property.

In addition, during some embodiments, PFCP connection processing unit can be according to the first network element and the second network element PFCP configuration information determines that PFCP link connection and/or PFCP session connection are established by the way of unification, can effectively subtract Few redundant link connection, redundancy session, raising efficiency.

Example IV:

A kind of communication system is present embodiments provided, it is shown in Figure 16 comprising the first network element 1601 and the second network element 1602；

Second network element 1602 is used to the PFCP configuration information of itself being sent to the first network element 1601, and for according to the The PFCP establishment of connection mode that one network element 1601 determines is established PFCP with the first network element 1601 and is connect；Second network element 1602 is realized The detailed process of these functions can be used but be not limited to the above embodiments exemplified process.

First network element 1601 is used for based between the PFCP configuration information determination of the second network element 1602 and the second network element 1602 PFCP establishment of connection mode, and connect for establishing PFCP according to determining PFCP establishment of connection mode and the second network element It connects, the first network element 1601 realizes that the detailed process of these functions can be used but be not limited to the above embodiments exemplified process.

The present embodiment additionally provides a kind of network element, shown in Figure 17 comprising processor 1701, memory 1702 and logical Believe bus 1703, in which: communication bus 1703 is for realizing the connection communication between processor 1701 and memory 1702；Processing Device 1701 is for executing one or more computer program stored in memory 1702, to realize in the various embodiments described above At least one step in PFCP connection processing method.Namely network element provided in this embodiment can be used as above-mentioned first network element, It can be a kind of UPF entity, be also possible to a kind of CPF entity.

The present embodiment additionally provides a kind of computer readable storage medium, which, which is included in, is used for Store any method or skill of information (such as computer readable instructions, data structure, computer program module or other data) The volatibility implemented in art or non-volatile, removable or non-removable medium.Computer readable storage medium includes but not It is limited to RAM (Random Access Memory, random access memory), ROM (Read-Only Memory, read-only storage Device), EEPROM (Electrically Erasable Programmable read only memory, band electric erazable programmable Read-only memory), flash memory or other memory technologies, (Compact Disc Read-Only Memory, CD is only by CD-ROM Read memory), digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other magnetic memory apparatus, Or any other medium that can be used for storing desired information and can be accessed by a computer.

Computer readable storage medium in the present embodiment can be used for storing one or more computer program, storage One or more computer program can be executed by processor, to realize the PFCP connection processing method in the various embodiments described above At least one step.

The present embodiment additionally provides a kind of computer program, which can be distributed in computer-readable medium On, by can computing device execute, to realize at least one step of the PFCP connection processing method in the various embodiments described above；And And in some cases, at least one shown or described can be executed using the described sequence of above-described embodiment is different from Step.

The present embodiment additionally provides a kind of computer program product, including computer readable device, the computer-readable dress It sets and is stored with computer program as shown above.The computer readable device may include calculating as shown above in the present embodiment Machine readable storage medium storing program for executing.

As it can be seen that those skilled in the art should be understood that whole or certain steps in method disclosed hereinabove, be Functional module/unit in system, device may be implemented as the software (computer program code that can be can be performed with computing device To realize), firmware, hardware and its combination appropriate.In hardware embodiment, the functional module that refers in the above description/ Division between unit not necessarily corresponds to the division of physical assemblies；For example, a physical assemblies can have multiple functions, or One function of person or step can be executed by several physical assemblies cooperations.Certain physical assemblies or all physical assemblies can be by realities It applies as by processor, such as the software that central processing unit, digital signal processor or microprocessor execute, or is implemented as hard Part, or it is implemented as integrated circuit, such as specific integrated circuit.

In addition, known to a person of ordinary skill in the art be, communication media generally comprises computer-readable instruction, data knot Other data in the modulated data signal of structure, computer program module or such as carrier wave or other transmission mechanisms etc, and It and may include any information delivery media.So the present invention is not limited to any specific hardware and softwares to combine.

The above content is combining specific embodiment to be further described to made by the embodiment of the present invention, cannot recognize Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, Without departing from the inventive concept of the premise, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention Protection scope.

Claims

1. a kind of packet filtering control protocol PFCP connection processing method, comprising:

First network element is based on PFCP connection between the PFCP configuration information determination of second network element and second network element Establish mode；

First network element carries out PFCP according to the PFCP establishment of connection mode with second network element and connect the control established System.

2. PFCP connection processing method as described in claim 1, which is characterized in that the PFCP connection connects including PFCP link At least one of connect with PFCP session connection.

3. PFCP connection processing method as described in claim 1, which is characterized in that first network element is control plane function CPF entity, second network element are user plane functions UPF entity；

Or,

First network element is UPF entity, and second network element is CPF entity.

4. PFCP connection processing method as described in claim 1, which is characterized in that the method also includes:

The PFCP configuration information of itself is sent to second network element by first network element.

5. PFCP connection processing method according to any one of claims 1-4, which is characterized in that first network element obtains the The PFCP configuration information for second network element that two network elements are sent includes any one in following acquisition modes:

First network element receives the PFCP configuration request that second network element is sent, the PFCP configuration request packet Include the PFCP configuration information of second network element；

First network element receives the PFCP configuration information response that second network element is sent, the PFCP configuration information response bag Include the PFCP configuration information of second network element；

First network element receives the PFCP request for building link that second network element is sent, the PFCP request for building link packet Include the PFCP configuration information of second network element；

First network element receives the PFCP link establishment response that second network element is sent, the PFCP link establishment response bag Include the PFCP configuration information of second network element.

6. PFCP connection processing method according to any one of claims 1-4, which is characterized in that the PFCP of second network element Configuration information includes: that the PFCP interface type of the second network element support connects foundation with the preferred PFCP of second network element At least one of mode.

7. PFCP connection processing method as claimed in claim 6, which is characterized in that first network element is based on second net The PFCP configuration information of member determines that PFCP establishment of connection mode includes: between first network element and second network element

First network element is determined according to the PFCP interface type itself supported and the PFCP configuration information of second network element PFCP establishment of connection mode between first network element and second network element.

8. PFCP connection processing method as claimed in claim 6, which is characterized in that mode is established in the preferred PFCP connection Mode is established including PFCP link connection and the combination of mode is established in PFCP session connection, and the combination includes in following combination It is at least one:

The unification of PFCP link, PFCP session unification；

The unification of PFCP link, PFCP session are independent；

PFCP link is independent, and PFCP session is independent.

9. PFCP connection processing method as claimed in claim 6, which is characterized in that the PFCP interface type includes that Sxa connects At least one of mouth, Sxb interface, Sxc interface, N4 interface.

10. a kind of PFCP connection processing unit, which is characterized in that be applied to the first network element comprising:

Processing module, for the PFCP configuration information based on second network element, determine the first network element and second network element it Between PFCP establishment of connection mode；

Connection establishment module is used for according to the PFCP establishment of connection mode, to first network element and second network element Between PFCP establishment of connection controlled.

11. PFCP connection processing unit as claimed in claim 10, which is characterized in that the PFCP connection includes PFCP link At least one of connection and PFCP session connection.

12. PFCP connection processing unit as claimed in claim 10, which is characterized in that first network element is control plane function CPF entity, second network element are user plane functions UPF entity；

Or,

First network element is UPF entity, and second network element is CPF entity.

13. such as the described in any item PFCP connection processing units of claim 10-12, which is characterized in that the acquisition of information mould Block is used to receive the PFCP configuration request that second network element is sent, and the PFCP configuration request includes described second The PFCP configuration information of network element；

Or,

The data obtaining module is used to receive the PFCP configuration information response that second network element is sent, and the PFCP matches confidence Breath response includes the PFCP configuration information of second network element；

Or,

The data obtaining module is used to receive the PFCP request for building link that second network element is sent, and the PFCP link is built Vertical request includes the PFCP configuration information of second network element；

Or,

The data obtaining module is used to receive the PFCP link establishment response that second network element is sent, and the PFCP link is built Vertical response includes the PFCP configuration information of second network element.

14. such as the described in any item PFCP connection processing units of claim 10-12, which is characterized in that second network element PFCP configuration information includes: that the PFCP interface type of the second network element support is connected with the preferred PFCP of second network element Establish at least one of mode.

15. PFCP connection processing unit as claimed in claim 14, which is characterized in that the preferred PFCP connection foundation side Formula includes the combination that PFCP link connection establishes mode and mode is established in PFCP session connection, and the combination includes in following combination At least one:

The unification of PFCP link, PFCP session unification；

The unification of PFCP link, PFCP session are independent；

PFCP link is independent, and PFCP session is independent.

16. a kind of PFCP connection processing unit characterized by comprising

Determining module, for the PFCP configuration information based on second network element, determine the first network element and second network element it Between PFCP establishment of connection mode；

Processing module is connected, is used for according to the PFCP establishment of connection mode, to first network element and second network element Between PFCP establishment of connection controlled.

17. PFCP connection processing unit as claimed in claim 16, which is characterized in that the PFCP connection includes PFCP link At least one of connection and PFCP session connection；

The determining module includes that link connection determines that submodule and session connection determine at least one of submodule；

The link connection determines that submodule for the PFCP configuration information based on second network element, determines first network element PFCP link connection establishes mode between second network element；

The session connection determines that submodule for the PFCP configuration information based on second network element, determines first network element PFCP session connection establishes mode between second network element.

18. PFCP connection processing unit as claimed in claim 16, which is characterized in that further include information sending module, be used for By first network element by PFCP configuration information be sent to second network element.

19. such as the described in any item PFCP connection processing units of claim 16-18, which is characterized in that the information receives mould Block includes:

Configuration request receiving submodule, the PFCP configuration request sent for receiving second network element are described PFCP configuration request includes the PFCP configuration information of second network element；

Or,

Configuration information responds receiving submodule, the PFCP configuration information response sent for receiving second network element, described The response of PFCP configuration information includes the PFCP configuration information of second network element；

Or,

Request for building link receiving submodule, the PFCP request for building link sent for receiving second network element are described PFCP request for building link includes the PFCP configuration information of second network element；

Or,

Link establishment responds receiving submodule, the PFCP link establishment response sent for receiving second network element, described PFCP link establishment response includes the PFCP configuration information of second network element.

20. such as the described in any item PFCP connection processing units of claim 16-18, which is characterized in that second network element PFCP configuration information includes: that the PFCP interface type of the second network element support is connected with the preferred PFCP of second network element Establish at least one of mode.

21. a kind of network element, including processor, memory and communication bus, the communication bus for realizing the processor and Connection communication between the memory, which is characterized in that the memory is for storing one or more computer programs；

The processor is for executing the one or more computer programs stored in the memory, to realize such as claim Described in any one of 1-9 the step of PFCP connection processing method.

22. a kind of communication system, which is characterized in that including the first network element and the second network element；

Second network element is used to the PFCP configuration information of itself being sent to first network element, and for according to described the The PFCP establishment of connection mode that one network element determines is established PFCP with first network element and is connect；

First network element is used for based on PFCP between the PFCP configuration information determination of second network element and second network element Establishment of connection mode, and connect for establishing PFCP according to determining PFCP establishment of connection mode and second network element It connects.

23. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage have one or Multiple computer programs, one or more of computer programs can be executed by one or more processor, to realize such as The step of PFCP connection processing method of any of claims 1-9.