CN110086837A

CN110086837A - A kind of transmission control method of message, equipment and computer readable storage medium

Info

Publication number: CN110086837A
Application number: CN201810073707.3A
Authority: CN
Inventors: 马鑫; 唐伟杰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-01-25
Filing date: 2018-01-25
Publication date: 2019-08-02

Abstract

The embodiment of the invention discloses a kind of transmission control methods of message, which comprises user plane functions UPF obtains the corresponding session level FAR of session；Control is forwarded to the message of session according to session corresponding session level FAR.The embodiment of the present invention also discloses the forwarding control equipment and computer readable storage medium of a kind of message simultaneously.

Description

A kind of transmission control method of message, equipment and computer readable storage medium

Technical field

The present invention relates to fields of communication technology more particularly to a kind of transmission control method of message, equipment and computer can Read storage medium.

Background technique

With the rapid development of the communication technology, mobile communication had evolved to the 5th generation (The 5th Generation, 5G) the stage.The network architecture of 5G network includes control plane and user face.Wherein, user plane functions (the User Plane in user face Function, UPF) be responsible for user face message forwarding.

Currently, UPF is only capable of according to the corresponding forwarding rule of conduct (Forwarding of business when message reaches UPF Action Rule, FAR) control is forwarded to message.

According to the forwarding strategy of type of service setting message, control mode is single.

Summary of the invention

In order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of transmission control method of message, equipment and Computer readable storage medium, the forwarding strategy control mode solved in the prior art according to type of service setting message are single The problem of.

In order to achieve the above objectives, the technical solution of the embodiment of the present invention is achieved in that

In a first aspect, the present invention provides a kind of transmission control method of message, which comprises

User plane functions UPF obtains the corresponding session level FAR of session；

Control is forwarded to the message of the session according to the session corresponding session level FAR.

Second aspect, the present invention provide a kind of transmission control method of message, which comprises

The session level FAR of first instance acquisition session；

The session level FAR of the session is sent to second instance；

Wherein, the session level FAR is forwarded control to the message of the session for user plane functions UPF.

The third aspect, the present invention provide a kind of forwarding control equipment of message, and the equipment includes processor and for depositing The memory of the enough computer programs run on a processor of energy storage,

Wherein, the processor is for when running the computer program, executing turning for any message of first aspect The step of sending out control method, alternatively, the step of transmission control method of any message of second aspect.

Fourth aspect, the present invention provide a kind of computer readable storage medium, deposit on the computer readable storage medium User face message retransmission process is contained, first aspect any institute is realized when the user face message retransmission process is executed by processor The step of stating the transmission control method of message, alternatively, the step of transmission control method of any message of second aspect.

In the embodiment of the present invention, by obtaining the corresponding session level FAR of session；And according to the corresponding session of the session Grade FAR is forwarded control to the message of the session, provides a kind of control mode of new message forwarding.

Detailed description of the invention

Fig. 1 is the configuration diagram of 5G communication network；

Fig. 2 is the flow diagram one of the transmission control method of message provided in an embodiment of the present invention；

Fig. 3 is the flow diagram two of the transmission control method of message provided in an embodiment of the present invention；

Fig. 4 is the 5th generation communication system NAS signaling Connection Release flow diagram；

Fig. 5 is the interaction flow schematic diagram one of the transmission control method of message provided in an embodiment of the present invention；

Fig. 6 is that the 5th generation communication system traffic requests flow diagram；

Fig. 7 is the interaction flow schematic diagram two of the transmission control method of message provided in an embodiment of the present invention；

Fig. 8 is that the reverse strategy initiated in the 5th generation communication system PCF updates flow diagram；

Fig. 9 is the interaction flow schematic diagram three of the transmission control method of message provided in an embodiment of the present invention；

Figure 10 is the interaction flow schematic diagram four of the transmission control method of message provided in an embodiment of the present invention；

Figure 11 is the structural schematic diagram of the forwarding control equipment of message provided in an embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description.

Before the transmission control method for introducing message provided in an embodiment of the present invention, first to provided in an embodiment of the present invention The network architecture applied by the transmission control method of message carries out general description.

Fig. 1 is the configuration diagram of 5G communication network.As shown in Figure 1, the network architecture of the 5G communication system includes: access Management function (Access Management Function, AMF), conversation management functional (Session Management Function, SMF), user plane functions (User Plane Function, UPF), uniform data management (Unified Data Management, UDM) and policy control functions (Policy Control Function), PCF), access network (Access Network, AN), data network (Data Network, DN) etc..Wherein AN can be Radio Access Network (Radio AN, RAN), it is also possible to cable access network, such access network can be denoted as (R) AN.

Wherein, control plane and user face are separation architectures, and the connection of control plane is that UE to AMF arrives SMF, the connection in user face It is managed for UE to UPF, UPF by SMF.As shown in Figure 1, may exist N1 interface between UE and AMF, can be deposited between AMF and SMF In N11 interface, may exist N7 interface between SMF and PCF, may exist N6 interface between UPF and DN, it can between AN and UPF With there are N3 interfaces, may exist N2 interface between AN and AMF, there are N4 interface between UPF and SMF, SMF can connect by N4 Various forward rules on mouth management UPF.

Four Different Rules, packet detected rule (Packet can be managed on N4 interface between SMF and UPF Detection Rule, PDR) different with three " execution " rule is forwarding rule of conduct FAR (Forwarding respectively Action Rule, FAR), dosage report regular (Usage Reporting Rule, URR) and service quality (Quality of Service, QoS) executing rule (QoS Enforcement Rule, QER).Wherein, whether FAR may include will forward, and lose Abandoning or buffer operation are applied to the forwarding strategy information of message.

For example, when message reaches UPF by N3 interface, UPF first identifies message according to PDR, identification report The type of service of text selects the business corresponding FAR, URR, QER to be forwarded control according to the type of service of message.Work as SMF When needing to modify the service level FAR in UPF, SMF can send session modification request (Sx Session to UPF Modification Requset), it carries the service level FAR to be modified and is pressed after UPF receives the service level FAR to be modified Processing is forwarded to subsequently received message according to modified service level FAR.

This FAR includes the forwarding strategy of service level, can there is different forwarding strategies for different business.Service class It is more careful that type divides, and the quantity of existing FAR will be more.When the quantity for the service level FAR for needing to modify is very more, process Cheng Shifen is time-consuming.

In this regard, the embodiment of the present invention provides the transmission control method for being able to solve the message of the problem.Below to the present invention The transmission control method for the message that embodiment provides is described in detail.

The embodiment of the present invention provides a kind of transmission control method of message, and the executing subject of the embodiment of the present invention can be UPF, Fig. 2 are the flow diagram one of the transmission control method of message provided in an embodiment of the present invention.As shown in Fig. 2, of the invention The step of embodiment may include:

S201, the corresponding session level FAR of session is obtained.

In embodiments of the present invention, for for the terminal device of 5G network (User Equipment, UE), a UE can To there is a session, multiple business that a UE is initiated can be transmitted in a stream (stream), and multiple streams can be one Transmission in a session (session), that is to say, that session is the equal of the channel of terminal device transmission various businesses data.

In embodiments of the present invention, session can usually be identified with session identification (session ID, SEID).Different UE The session identification of corresponding different session identification, the session level FAR of the corresponding session of different UE is different.In other implementations of the present invention In example, if the user face of UE is established can manage the UE corresponding meeting on the UPF respectively on multiple UPF, on each UPF Words.For example, the session relevant to the UE managed on different UPF can transmit the business of the different types of service of the UE Data.For example, the session of the UE1 established on UPF1 can be responsible for the message of forwarding service Class1, the UE1's established on UPF2 Session can be responsible for the message of forwarding service type 2 and type of service 3.The embodiment of the present invention to this with no restriction.In the present invention In other embodiments, SMF equipment is stored with the corresponding relationship of UE with the UPF that session is established for UE, then " UPF can also be used on SMF The combination of mark and the session identification of UE ", come identify the UE on the UPF corresponding session, on the UPF corresponding session meeting Talk about grade FAR.

In embodiments of the present invention, session level FAR can refer to the message forwarding strategy according to different session settings.

In embodiments of the present invention, the corresponding session level FAR of session is obtained, may include: that UPF receives the meeting that SMF is sent Talk about corresponding session level FAR.For example, UPF can receive the session modification request of SMF transmission, wherein carrying the session level FAR。

S202, control is forwarded to the message of session according to the corresponding session level FAR of session.

In embodiments of the present invention, session level FAR and session identification correspond, and UPF is when receiving message, from message In comprising session identification field in extract session identification, by the meeting of itself and the pre-stored session for needing to change forward rule Words mark is compared, it is determined whether there is session level FAR corresponding with the session identification, and if it exists, then according to session level FAR Processing is forwarded to the message.

In embodiments of the present invention, session level FAR may include E-Packet instruction, the instruction of caching message, dropping packets At least one of instruction instruction.For example, session level FAR can be by multiple set of data bits at each indicates different and contains Justice.For example, session level FAR may include whether the indicating bit that E-Packets, if caching message indicating bit, if dropping packets refer to Show at least one of position indicating bit.

In embodiments of the present invention, session level FAR can serve to indicate that the message for stopping forwarding session；Alternatively, session level FAR is used to indicate the message for enabling forwarding session.If the corresponding session level FAR of session is used to indicate the report for stopping forwarding session Text after then UPF receives message, stops forwarding the message of the session.If the corresponding session level FAR of session is used to indicate enabling The message for forwarding session, then after UPF receives message, forward the message of the session.In other embodiments of the present invention, session Grade FAR may be used to indicate that the message of buffering session.If the corresponding session level FAR of session, which is used to indicate, stops forwarding session Message, and indicate the message of buffering session, then after UPF receives message, stops forwarding the message of the session and buffer session Message.

The transmission control method of message provided in an embodiment of the present invention obtains the corresponding session level FAR of session by UPF, And control is forwarded to the message of session according to the corresponding session level FAR of session, new the embodiment of the invention provides one kind The control mode that UPF forwards message.

Moreover, the embodiment of the present invention also provides a kind of transmission control method of message, and business can be used on UPF Mode of the FAR in conjunction with session FAR come realize to message forwarding control.In one example, it can be arranged on UPF and preferentially adopt The forwarding strategy of message is determined according still further to service level FAR when session level FAR allows to E-Packet with session level FAR.Example Property, session level FAR can serve to indicate that UPF stops forwarding the message of session；Alternatively, session level FAR be used to indicate UPF according to The corresponding service level FAR of each business of session is forwarded control to the message of the session respectively.Compared to only with industry Business grade FAR or the control mode of the message forwarding only with session level FAR, the forwarding control to message of this mode is more Flexibly.

In embodiments of the present invention, session level FAR may include the instruction that E-Packets.Wherein, if E-Packeting dial gauge Show and stop forwarding message, then UPF can stop forwarding the message of the session.If the instruction that E-Packets is indicated to enable and be E-Packeted, Then UPF can be forwarded control to the message of session according to the corresponding service level FAR of session；Wherein, the corresponding business of session Grade FAR is used to be forwarded control to the message of each business respectively according to the service level FAR of each business.The present invention other In embodiment, session level FAR can also include caching message instruction.Wherein, if the instruction that E-Packets indicates to stop forwarding message, And caching message instruction indicates to enable caching message, then UPF turns the message of session according to the corresponding session level FAR of session Hair control, can also include: the message that UPF caches the session.That is, UPF after receiving the message of the session, stops The message of the session is forwarded, while caching the message of the session.

Illustratively, the corresponding service level FAR of session can be as shown in table 1.

Table 1

Wherein, a session can be identified with session identification, and above-mentioned session identification is only a kind of example.One session Session level FAR may include three kinds of instructions, forwarding refers to the instruction that E-Packets, and buffering refers to that buffering message indicates that discarding is Refer to dropping packets instruction.One session can correspond to multiple types of service, and type of service 1 can be File Transfer Protocol (File Transfer Protocol, FTP) business, type of service 2 can be transmission control protocol (Transfer Control Protocol, TCP) business, type of service 3 can be User Datagram Protocol (User Datagram Protocol, UDP) industry Business.Service level FAR also may include three kinds of instructions, similar with the forwarding strategy that session level FAR includes, in service level FAR, forwarding Refer to the instruction that E-Packets, buffering refers to that buffering message instruction, discarding refer to that dropping packets indicate.As can be seen that in table 1, The business transmitted in different sessions can respectively correspond different forwarding strategies.For example, in the session that session identification is 01, The service level FAR of ftp business is to stop forwarding message and dropping packets, and in the session that session identification is 02, ftp business Service level FAR is to enable to E-Packet.In other embodiments of the present invention, different sessions identify the business of corresponding same business Grade FAR can also be identical, E-Packets for example, E-Packeting and being designated as enabling, and buffering message is designated as not buffering message, abandons Message is designated as not dropping packets.

In embodiments of the present invention, UPF extracts meeting when receiving message from the field in message comprising session identification Words mark, it is compared with the session identification of the pre-stored session for needing to change forward rule, it is determined whether exist Session level FAR corresponding with the session identification, and if it exists, processing preferentially then is forwarded to the message according to session level FAR.It lifts For example, the session identification for the session that UPF when receiving session level FAR, can will need to change message forwarding strategy is preparatory It is stored in PDR.In other embodiments of the present invention, the identification of type of service can also be passed through by UPF according to PDR reality in message It is existing.Illustratively, by the way that the corresponding IP five-tuple of various businesses type, i.e. IP address and port numbers is stored in advance, pass through identification IP address and port numbers in message, so that it may identify the corresponding type of service of outgoing packet.

In embodiments of the present invention, UPF control is forwarded to the message of session according to the corresponding session level FAR of session can If UPF stops forwarding the message of the session to include: that the instruction that E-Packets in session level FAR indicates to stop forwarding message. It E-Packets if the instruction that E-Packets in session level FAR indicates to enable, UPF is according to the corresponding service level FAR of session to meeting The message of words is forwarded control.Wherein, the corresponding service level FAR of session is used to be distinguished according to the service level FAR of each business Control is forwarded to the message of each business.

In one example, it is based on table 1, UPF identifies that the session identification for including in the message is 01, service class according to PDR Type is 02, then UPF can be determined according to the instruction that E-Packets in the session level FAR of the session stops forwarding the message, and can Not have to pay close attention to the corresponding type of service of the message.In another example, UPF identifies the session for including in outgoing packet according to PDR It is identified as 02, type of service 02, then UPF inquires E-Packeting in the session level FAR of the session and is designated as enabling forwarding Message then continues to inquire the corresponding service level FAR of the session, and UPF inquires the service level FAR of type of service 2 to enable forwarding Message, which can then determine, forwards the message.

In other embodiments of the present invention, UPF is forwarded control to the message of session according to the corresponding session level FAR of session If system can also include: that the instruction that E-Packets in session level FAR indicates to stop forwarding message, and the caching in session level FAR Message instruction, which indicates to enable, caches message, then UPF stops forwarding the message of the session, together after receiving the message of the session When cache the message of the session.

It should be noted that the explanation in the present embodiment with same steps in other embodiments or concept, is referred to Description in other embodiments.The other technologies effect of the embodiment of the present invention can refer to the description in other embodiments, herein not It repeats again.

The transmission control method of message provided in an embodiment of the present invention obtains the corresponding session level FAR of session by UPF, And control is forwarded to the message of session according to the corresponding session level FAR of session, in the multiple service level FAR for needing to modify UE When, it avoids UPF and modifies each service level FAR one by one, simplify treatment process.

In embodiments of the present invention, the session level FAR that UPF is obtained can be what SMF or PCF was generated.SMF or PCF The session level FAR of one or more sessions can be generated, later, SMF or PCF will give birth to according to the state change of terminal device At session level FAR be sent to UPF, to indicate that UPF is forwarded control to the message of session according to the session level FAR of session. In other embodiments of the present invention, the session level FAR that PCF is generated can be sent to SMF, be sent to PCF by SMF.Below to SMF The transmission control method of the message executed with the side PCF is described in detail.

The embodiment of the present invention also provides a kind of transmission control method of message, and the executing subject of the embodiment of the present invention can be First instance, the first instance can be PCF or SMF.Fig. 3 is the transmission control method of message provided in an embodiment of the present invention Flow diagram two.As shown in figure 3, the step of embodiment of the present invention, may include:

S301, first instance obtain the session level FAR of session.

S302, first instance send the session level FAR of session to second instance.

Wherein, session level FAR is forwarded control to the message of session for UPF.

In embodiments of the present invention, session level FAR can be using any reality in the transmission control method of message shown in Fig. 1 Existing mode.For example, in one example, session level FAR can serve to indicate that UPF stops forwarding the message of session；Alternatively, meeting Words grade FAR can serve to indicate that the message of UPF forwarding session.In another example, session level FAR can serve to indicate that UPF stops The message of rotation stop hair session；Alternatively, session level FAR can serve to indicate that UPF according to the corresponding service level of each business of session FAR is forwarded control to the message of the session respectively.

In embodiments of the present invention, first instance can be PCF or SMF, wherein when first instance is PCF, second Entity can be SMF, and when first instance is SMF, second instance can be UPF.

In the first optional embodiment provided in an embodiment of the present invention, first instance can be PCF, second instance It can be SMF, then first instance obtains the session level FAR of session, may include: the session level FAR that PCF generates session.Accordingly Ground, first instance send session level FAR to second instance, may include: the session level FAR that PCF sends session to SMF.

For example, PCF generates the session level FAR of session, may include:

PCF receives the expense state that online charging control function entity (Online Charging System, OCS) is sent Change instruction；

PCF indicates to generate the session level FAR of session according to expense Status Change.

Wherein, the PCF generates the session level FAR of the session according to expense Status Change instruction, may include: If expense Status Change is designated as amount arrearage instruction, PCF can be determined in the session level FAR of the corresponding session of the UE The instruction that E-Packets indicates to stop forwarding the message of the session；Refer to if the expense Status Change is designated as amount Show, then the PCF can determine that the instruction that E-Packets in the session level FAR of the session indicates to enable and forward the session Message.

In other embodiments of the present invention, expense Status Change instruction can carry the mark of UE, then PCF is receiving this After the expense Status Change instruction of UE, PCF can indicate to generate the session of the corresponding session of the UE according to expense Status Change Grade FAR.Illustratively, PCF can generate the service level FAR of one or more business of the UE according to the arrearage degree of UE, or Person generates the session level FAR of one or more sessions of the UE.In one example, if the UE belongs to arrearage amount reduced levels, For example, 0.1 yuan to 10 yuan of arrearage, it is to stop forwarding message that PCF, which can be set and be used for transmission the service level FAR of language service, this When, the service level FAR of the data service of the UE can also be kept to E-Packet to enable without making an amendment.In another example, If the UE belongs to arrearage amount higher level, for example, 200 yuan of arrearage or more, the corresponding all sessions of the UE can be set in PCF Session level FAR is to stop forwarding message.

In second provided in an embodiment of the present invention optional embodiment, first instance can be SMF, second instance It can be UPF, then first instance obtains the session level FAR of session, may include: the session level that SMF receives the session that PCF is sent FAR, alternatively, SMF generates the session level FAR of session.Correspondingly, the first instance sends the meeting of the session to second instance Grade FAR is talked about, may include: the session level FAR that the SMF sends the session to the UPF.

In one example, SMF receives the session level FAR for the session that PCF is sent, and may include:

SMF receives the session level FAR for the session that PCF is generated according to expense Status Change instruction.

In other embodiments of the present invention, SMF can receive PCF transmission session session level FAR after, to UPF sends the session level FAR of the session, to indicate that UPF is forwarded control to the message of session according to the session level FAR of session System.

In another example, SMF generates the session level FAR of the session, may include:

SMF receives the first session modification request that AMF is sent；

SMF generates the session level FAR of session according to the first session modification request.

Wherein, the first session modification request is used to indicate the corresponding service level FAR of modification session, the corresponding service level of session FAR is used to be forwarded control to the message of each business respectively according to the service level FAR of each business.

Correspondingly, the SMF sends the session level FAR of the session to the UPF, may include:

SMF sends the second session modification request to UPF, and second session modification request carries the session level of the session FAR。

In embodiments of the present invention, the SMF determines the session level of the session according to first session modification request FAR may include:

If first session modification request is the Non-Access Stratum signaling that the AMF receives terminal device UE transmission It is sent after (Non-access stratum, NAS) connection release request, then the SMF determines that the session level FAR is indicated Stop forwarding message；

If first session modification request is the N2 resource foundation sound that the AMF receives access network device AN transmission It should send later, then the SMF determines that the session level FAR indicates to enable and E-Packets.

It should be noted that in other embodiments of the present invention, the first session modification request may include user's shape of UE State change information, wherein the User Status change information of UE can be that UE access enters state of activation, UE enters deactivation status Deng.SMF is after receiving the first session modification request, if first session modification request is that AMF receives UE transmission It is sent after NAS connection release request, then SMF can be generated session level FAR expression and stop forwarding message.If the second session is repaired Changing request is to send after AMF receives the N2 resource foundation response that AN is sent, then the session level FAR can be generated in SMF It indicates to enable and E-Packet.In other embodiments of the present invention, SMF can be asked in the first session modification for receiving AMF transmission After asking, by the second session modification request, the session level FAR of session generated is sent to UPF.

In embodiments of the present invention, it if the user face of UE is established on multiple UPF, can be managed respectively on each UPF The UE corresponding session on the UPF.For example, the session relevant to the UE managed on different UPF can transmit the UE Different types of service business datum.For example, the session of the UE1 established on UPF1 can be responsible for forwarding service Class1 The session of message, the UE1 established on UPF2 can be responsible for the message of forwarding service type 2 and type of service 3.The embodiment of the present invention With no restriction to this.In other embodiments of the present invention, SMF equipment is stored with the corresponding pass of UE with the UPF that session is established for UE System then can also use the combination of " session identification of UPF mark and UE " on SMF, to identify the UE corresponding meeting on the UPF The session level FAR of corresponding session in words, the UPF.

In other embodiments of the present invention, first instance sends the session level FAR of session to second instance, may include: PCF sends the session level FAR of session generated to SMF, alternatively, SMF sends session generated or acquired to UPF Session level FAR.For example, PCF can be modified to SMF sending strategy and be requested, and the meeting of session is carried in strategy modification request Talk about grade FAR.For another example, SMF can send session modification request (Sx Session Modification Requset) to PCF, meeting The session level FAR of session is carried in words modification request.

In embodiments of the present invention, it if the service level FAR stored on UPF needs to modify, needs to be sent from SMF to UPF Each modified service level FAR.Illustratively, SMF can send the service level to be modified to UPF by session modification request FAR.When the quantity for the service level FAR for needing to modify is very more, need to carry in the session modification request that SMF is sent to UPF A large amount of service level FAR, it is too long that this will lead to session modification request message-length, since the signaling messages such as session modification request exist It is generally not allowed fragment in transmission, it is too long to may cause modification treatment process delay in this case.

The transmission control method of message provided in an embodiment of the present invention, by obtaining the session level FAR of session, and to UPF The session level FAR for sending session, avoids and carries a large amount of service level FAR in session modification request, and then avoid transmission Delay improves the speed of modification processing.

The transmission control method of message provided in an embodiment of the present invention is described in detail using interaction diagrams below.

Fig. 4 is the 5th generation communication system NAS signaling Connection Release flow diagram.As shown in figure 4, NAS believes in 5G system Connection Release process is enabled to be related to UE, AN, AMF, SMF and UPF, the step of process includes:

NAS connection is discharged between S401, AN and AMF.

Wherein it is possible to which AN sends NAS Connection Release to AMF and asks in UE shutdown or inactive long-time It asks.Illustratively, it can consider and be in idle condition when UE did not initiated data service in 30 minutes.In the embodiment of the present invention In, the identification information of UE is carried in NAS connection release request.

S402, AMF send session modification request to SMF.

Wherein, session modification request is used to indicate the message that SMF control UPF stops transmission all sessions of the UE, and session is repaired Change the mark that request carries the UE.The session modification request is properly termed as the first session modification request.In other implementations of the present invention In example, session modification request can also carry all types of service that the UE needs to stop sending.

S403, SMF send session modification request to UPF, carry service level FAR.

Wherein, SMF needs that UPF session is notified to enter dead status, and notifies all service levels of UPF setting session association FAR is to stop forwarding message strategy.Illustratively, SMF inquires UE and corresponds to type of service, generates the corresponding service level of each business FAR, wherein the instruction that E-Packets in the service level FAR of each business indicates to stop forwarding message.

S404, UPF are forwarded control to message according to service level FAR.

Wherein, UPF is according to the corresponding service level FAR of each business received, update be locally stored it is related with the UE Each business service level FAR.Later, according to the message of modified service level FAR each business corresponding to the UE into Row forwarding control.In the scene of the present embodiment, UPF forwards the message of each business of the UE by temporarily ceasing.

S405, UPF send session modification response to SMF.

Wherein, UPF, which sends session modification response to SMF, indicates the service level FAR modification corresponding to business of each business It finishes.

S406, SMF send session modification response to AMF.

Wherein, SMF sends session modification response to AMF, indicates that UPF has completed the business of the corresponding each business of the UE The update of grade FAR.

The embodiment of the present invention also provides a kind of transmission control method of message.In embodiments of the present invention, not due to user The reasons such as activity, AN initiate NAS signaling Connection Release process, and SMF notice UPF stops forwarding message, carries session level FAR, UPF Stop the forwarding of the corresponding all messages of session, if SMF indicates that UPF needs the caching of session level message simultaneously, UPF is executed Packet buffer strategy.Fig. 5 is the interaction flow schematic diagram one of the transmission control method of message provided in an embodiment of the present invention.Such as figure Shown in 5, the step of embodiment of the present invention, may include:

NAS connection is discharged between S501, AN and AMF.

Wherein, AN can be (R) AN.The step is similar with S401.

S502, AMF send session modification request to SMF.

Wherein, session modification request carries the mark of UE, and session modification request is used to indicate SMF control UPF and stops transmission The message of the corresponding all business of the UE.This, which is properly termed as the first session modification to the session modification request that SMF is sent from AMF, asks It asks.In other embodiments of the present invention, which can be used for modifying protocol Data Unit (Protocol Data Unit, PDU) attribute.

S503, SMF initiate session modification request to UPF, carry session level FAR.

Wherein, E-Packeting in session level FAR is designated as stopping forwarding message, and caching message is designated as caching downlink Message.In embodiments of the present invention, the instruction of caching message is used to indicate whether converting downlink message, i.e., sends out from network side to the side UE The message sent.This is properly termed as the second session modification request from SMF to the session modification request that UPF is sent.

S504, UPF are forwarded control to the message of session according to the session level FAR of session.

Wherein, after the session level FAR received, UPF can store session level FAR or update be locally stored with The related session level FAR of the session.Later, UPF turns according to modified session level FAR all messages corresponding to the UE Hair control.In the scene of the present embodiment, after receiving SMF instruction, the message for stopping all business under the session turns UPF Hair, and according to caching message instruction caching downlink message.

S505, UPF reply session modification response to SMF.

Wherein, UPF sends session modification response to SMF after receiving session level FAR to indicate the corresponding session of session Grade FAR modification finishes.Session modification response is properly termed as the response of the second session modification.

S506, SMF send session modification response to AMF.

Wherein, SMF sends session modification response to AMF to indicate that all service messages of the UE have stopped forwarding.The meeting Words modification response is properly termed as the response of the first session modification.

It should be noted that the explanation in the present embodiment with same steps in other embodiments or concept, is referred to Description in other embodiments.

The transmission control method of message provided in an embodiment of the present invention sends the session level FAR of session by SMF to UPF, It avoids and carries a large amount of service level FAR in session modification request, and then avoid transmission delay, improve modification processing Speed.

Fig. 6 is that the 5th generation communication system traffic requests flow diagram.As shown in fig. 6, business personnel requests stream in 5G system The step of journey is related to UE, AN, AMF, SMF and UPF, the process may include:

S601, UE send service request to AMF by AN.

Wherein, service request (Service Request) can be switched in UE or become moving type from inactive state It is sent when state.In embodiments of the present invention, the identification information of UE is carried in service request.

S602, AMF send session modification request to SMF.

Wherein, session modification request carries the identification information of UE.AMF instruction SMF prepares to establish the meeting in the user face of the UE Words, SMF can first determine the number for needing to establish the UPF in user face.Wherein, UE can establish the use of the UE on multiple UPF Family face, i.e. a UE can correspond to multiple UPF, then SMF needs to indicate the session that UPF relevant to the UE establishes the UE.At this In inventive embodiments, session modification request also carries the type of service of the relevant each business of UE.

S603, SMF send session modification response to AMF.

Wherein, SMF sends session modification response to AMF and indicates to have begun the session for preparing to establish the UE user face.

S604, AMF send N2 resource to AN and establish request.

Wherein, N2 resource establishes request and is used to indicate wireless heterogeneous networks (the Radio Resource that AN establishes UE Control, RRC) connection foundation.

S605, AN and UE establish RRC connection.

Wherein, AN can send RRC connection to UE according to the instruction of AMF and establish request, and UE can send RRC connection to AN Response is established to indicate that RRC connection is established and complete.

S606, AN send N2 resource to AMF and establish response.

Wherein, AN can send N2 resource to AMF and establish response after UE sends RRC connection foundation completion.AMF root It establishes and responds according to N2 resource, determination needs to enable the corresponding session of UE to transmit the message of various businesses.

S607, AMF send session modification request to SMF.

Wherein, session modification request includes the mark of UE, and session modification request is used to indicate SMF control UPF and enables the UE The session transmissions UE each business message.The session modification request is properly termed as the first session modification request.In this hair In bright embodiment, session modification request also carries the type of service of the relevant each business of UE.

S608, SMF send session modification request to UPF, carry service level FAR.

Wherein, SMF needs to notify the session of the UE on UPF to enter initiate mode, and notifies the institute of UPF setting session association There is service level FAR to enable the strategy that E-Packets.Illustratively, SMF inquires UE and corresponds to type of service, and it is corresponding to generate each business Service level FAR, wherein in the service level FAR of each business E-Packeting instruction indicate enable E-Packets.

S609, UPF are forwarded control to message according to service level FAR.

Wherein, after the service level FAR received, UPF can update the service level for the related service being locally stored FAR.Later, UPF is forwarded control according to message of the modified service level FAR to each business of the UE.In this implementation In the scene of example, after UPF receives SMF instruction, starting message forwarding, and tool is executed according to the FAR forwarding strategy of UE service level The forwarding strategy of body service level.

S610, UPF send session modification response to SMF.

Wherein, session modification response indicates that UPF completes the update of the service level FAR of the corresponding each business of UE.The meeting Words modification response is properly termed as the response of the second session modification.

S611, SMF send session modification response to AMF.

Wherein, session modification response indicates the message of each business of the session transmissions of the SMF completion enabling UE UE. Session modification response is properly termed as the response of the first session modification.

The embodiment of the present invention also provides a kind of transmission control method of message, in embodiments of the present invention, since user needs Business is used, UE initiates Service Request process, and SMF notice UPF starting E-Packets, carries session level message and turn Hair rule, UPF start message forwarding, and the forwarding strategy of specific service level is executed according to the FAR forwarding strategy of service level.Fig. 7 For the interaction flow schematic diagram two of the transmission control method of message provided in an embodiment of the present invention.As shown in fig. 7, the present invention is implemented Example may include steps of:

S701, UE send service request to AMF by AN.

Wherein, the step is similar with S601.

S702, AMF send session modification request to SMF.

Wherein, session modification request carries the identification information of UE.AMF instruction SMF prepares to establish the meeting in the user face of the UE Words, SMF can first determine the number for needing to establish the UPF in user face.Wherein, UE can establish the use of the UE on multiple UPF Family face, i.e. a UE can correspond to multiple UPF, then SMF needs to indicate the session that UPF relevant to the UE establishes the UE.At this In inventive embodiments, session modification request also carries the type of service of the relevant each business of UE.The step is similar with S602.

S703, SMF send session modification response to AMF.

Wherein, SMF sends session modification response to AMF and indicates to have begun the session for preparing to establish the UE user face.It should Step is similar with S603.

S704, AMF send N2 resource to AN and establish request.

Wherein, N2 resource establishes request and is used to indicate wireless heterogeneous networks (the Radio Resource that AN establishes UE Control, RRC) connection foundation.The step is similar with S604.

S705, AN and UE establish RRC connection.

Wherein, the step is similar with S605.

S706, AN send N2 resource to AMF and establish response.

Wherein, AN can send N2 resource to AMF and establish response after UE sends RRC connection foundation completion.AMF root It establishes and responds according to N2 resource, determination needs to enable the corresponding session of UE to transmit the message of various businesses.The step and S606 class Seemingly.

S707, AMF send session modification request to SMF.

Wherein, session modification request includes the mark of UE, and session modification request is used to indicate SMF control UPF and enables the UE The session transmissions UE each business message.The session modification request is properly termed as the first session modification request.In this hair In bright embodiment, session modification request also carries the type of service of the relevant each business of UE.The step is similar with S607.

S708, SMF send session modification request to UPF, carry session level FAR.

Wherein, SMF needs that the session level FAR of UPF setting session is notified to E-Packet to enable.Illustratively, SMF is inquired UE respective session generates session level FAR, wherein the instruction that E-Packets in session level FAR, which indicates to enable, to E-Packet.

S709, UPF are forwarded control to the message of session according to the session level FAR of session.

Wherein, after the session level FAR received, UPF can store session level FAR or update be locally stored with The related session level FAR of the session.Later, UPF turns according to modified session level FAR all messages corresponding to the UE Hair control.In the scene of the present embodiment, after UPF receives SMF instruction, it is designated as according to determining E-Packet of session level FAR Start message forwarding, and then executes the forwarding strategy of service level according to the corresponding service level FAR of the session identification of the UE.

S710, UPF send session modification response to SMF.

S711, SMF send session modification response to AMF.

Wherein, session modification response indicates the message of each business of the session transmissions of the SMF completion enabling UE UE.

In embodiments of the present invention, in such a way that SMF sends the session level FAR of session to UPF, SMF can not needed The service level FAR of each business is sent to UPF so that the message-length of session modification request becomes smaller, save SMF and UPF it Between transfer resource, shorten the time of the forwarding strategy of the message of the corresponding session of SMF instruction UPF modification UE.

Fig. 8 is that the reverse strategy initiated in the 5th generation communication system PCF updates flow diagram.In embodiments of the present invention, After OCS perceives subscriber arrearage when online charging center, it is notified that PCF, PCF initiate to stop the plan of user's message forwarding to SMF Slightly, as shown in figure 8, the step of process may include:

S801, PCF are modified to SMF sending strategy and are requested.

Wherein, PCF can be asked after receiving the expense Status Change instruction of OCS transmission to the modification of SMF sending strategy It asks, strategy modification requests that the mark of UE can be carried.In other embodiments of the present invention, strategy modification request can also carry UE The type of the business of signing.Strategy modification request is used to indicate the report that SMF control UPF modifies all or part of business of the UE Literary forwarding strategy.In one example, when arrearage degree is higher, PCF can indicate that SMF control UPF modifies whole industry of the UE The service level FAR of business, wherein the instruction that E-Packets in the service level FAR of each business indicates to stop forwarding message.

S802, SMF send session modification request to UPF, carry service level FAR.

Wherein, E-Packeting in service level FAR is designated as stopping forwarding message.That is, PCF can pass through SMF All service level FAR of notice UPF setting session association are to stop forwarding message strategy.

S803, UPF are forwarded control to message according to service level FAR.

Wherein, after the service level FAR received, UPF can update the service level for the related service being locally stored FAR.Later, UPF is forwarded control according to message of the modified service level FAR to each business of the UE.In this implementation In the scene of example, after UPF receives SMF instruction, the forwarding of specific service level is executed according to the FAR forwarding strategy of the service level of UE Strategy.Illustratively, if the arrearage degree that expense Status Change is designated as the user is more than preset value, UPF refers to receiving SMF After showing, stop the forwarding of the message of all business under the session.

S804, UPF send session modification response to SMF.

S805, SMF send session modification response to PCF.

Wherein, session modification response indicates that SMF completes to deactivate the message of each business of the session transmissions of the UE UE.

The embodiment of the present invention also provides a kind of transmission control method of message, in embodiments of the present invention, since user owes The message forwarding that expense PCF needs that UPF is notified to stop the user by SMF, carries session level message forward rule, UPF stops institute Some message forwardings.Fig. 9 is the interaction flow schematic diagram three of the transmission control method of message provided in an embodiment of the present invention.Such as figure Shown in 9, the embodiment of the present invention be may include steps of:

S901, PCF are modified to SMF sending strategy and are requested, and carry session level FAR.

Wherein, PCF can be asked after receiving the expense Status Change instruction of OCS transmission to the modification of SMF sending strategy It asks, strategy modification requests that the mark of UE can be carried.In other embodiments of the present invention, strategy modification request can also carry UE The type of the business of signing.Strategy modification request is used to indicate the message forwarding plan that SMF control UPF modifies whole business of the UE Slightly.In one example, when arrearage degree is higher, PCF can indicate that SMF control UPF modifies the session level of the session of the UE FAR, wherein the instruction that E-Packets in the session level FAR of session indicates to stop forwarding message.In other embodiments of the invention In, after user supplements with money, the message that PCF can also notify UPF to enable the user by SMF is forwarded, i.e. PCF can also pass through Strategy modification request issues session level FAR, wherein the E-Packeting of session level FAR is designated as enabling and E-Packet, then UPF can To be forwarded control to the message of each business in the session respectively according to the service level FAR of business each in session.

S902, SMF send session modification request to UPF, carry session level FAR.

Wherein, the instruction that E-Packets in session level FAR can be to stop forwarding message.In the present embodiment, SMF can be with The PCF session level FAR generated is directly transmitted to UPF.In other embodiments of the present invention, if the session establishment of UE is multiple On UPF, then SMF can also send session level FAR to the corresponding multiple UPF of the UE respectively.

S903, UPF are forwarded control to the message of session according to the session level FAR of session.

Wherein, after the session level FAR received, UPF can store session level FAR or update be locally stored with The related session level FAR of the session.Later, UPF turns according to modified session level FAR all messages corresponding to the UE Hair control.In the scene of the present embodiment, illustratively, if being determined and being forwarded according to session level FAR after UPF receives SMF instruction Message is designated as stopping message forwarding, then UPF stops the forwarding of all messages under the session.

S903, UPF send session modification response to SMF.

S904, SMF send session modification response to PCF.

Wherein, session modification response indicates that SMF completes to deactivate the message of each business of the session transmissions of the UE UE. Session modification response is properly termed as the response of the first session modification.

The transmission control method of message provided in an embodiment of the present invention sends the session level FAR of session by PCF to SMF, SMF sends the session level FAR of session to UPF again, avoids and carries a large amount of service level FAR in session modification request, in turn Transmission delay is avoided, the speed of modification processing is improved.

The embodiment of the present invention also provides a kind of transmission control method of message, in embodiments of the present invention, the user face of UE Session may establish on one or more UPF.Figure 10 is the friendship of the transmission control method of message provided in an embodiment of the present invention Mutual flow diagram four.As shown in Figure 10, the embodiment of the present invention may include steps of:

S1001, PCF are modified to SMF sending strategy and are requested, and carry service level FAR.

Wherein, PCF can be asked after receiving the expense Status Change instruction of OCS transmission to the modification of SMF sending strategy It asks, strategy modification requests that the mark of UE can be carried.In other embodiments of the present invention, strategy modification request can also carry UE The type of the business of signing.Strategy modification request can serve to indicate that SMF control UPF modifies all or part of business of the UE Message forwarding strategy.In one example, when arrearage degree is higher, PCF can indicate that SMF control UPF modifies the complete of the UE The service level FAR of portion or partial service, wherein the instruction that E-Packets in the service level FAR of business indicates to stop forwarding message. In other embodiments of the present invention, after user supplements with money, the message that PCF can also notify UPF to enable the user by SMF turns Hair, i.e. PCF can also request issuing service grade FAR by strategy modification, wherein E-Packeting for service level FAR is designated as opening With E-Packeting, then UPF can be according to the service level FAR of business each in session respectively to the report of each business in the session Text is forwarded control.

S1002, SMF send session modification request to UPF, carry session level FAR.

Wherein, SMF is in the strategy modification request for receiving PCF transmission, wherein strategy modification request carries industry to be modified The service level FAR of business；If in the corresponding session of business to be modified, the service level FAR of business to be modified and corresponding meeting The service level FAR of other business in words is identical, and the SMF determines the meeting of the session according to the service level FAR of the business Talk about grade FAR.In embodiments of the present invention, the corresponding session of business to be modified refers to corresponding to the corresponding UE of business to be modified User face session.

Illustratively, if the user face session establishment of UE is on UPF1 and on UPF2, wherein UPF1 is responsible for 1 He of type of service Type of service 2, UPF2 are responsible for type of service 3 and type of service 4, if the business that the service level FAR for the business that PCF is issued is related to is The corresponding all business of the session of the UE on a certain UPF, SMF are assured that the session level FAR that session is issued to the UPF.

In embodiments of the present invention, SMF can store the corresponding session of each UE, and, session it is corresponding one or Multiple UPF, and, the corresponding business of UE, and, the corresponding relationship between the corresponding UPF of the corresponding each business of UE.Table 2 is A kind of example of above-mentioned corresponding relationship.

Table 2

For example, when it is that arrearage degree is lower that user, which supplements rear expense Status Change with money, PCF can indicate SMF control UPF modifies the service level FAR of the partial service of the UE, wherein if the partial service that the UE is allowed to restore is deployed in a UPF On, for example, the UE2 in table 2 is allowed to restore the business of type of service 1 and type of service 2, then SMF can send to UPF1 and be somebody's turn to do The session level FAR of the corresponding session of UE, wherein the E-Packeting of session level FAR is designated as enabling and E-Packet, to control UPF restores the transmission of the message of the partial service of the UE.

S1003, UPF are forwarded control to the message of session according to the session level FAR of session.

Wherein, the step is similar with S903.

S1004, UPF send session modification response to SMF.

Wherein, the step is similar with S904.

S1005, SMF send session modification response to PCF.

The transmission control method that the embodiment of the present invention provides message can be adapted for control plane and the session level in user face turns Hair rule is implemented, and indicates that user face session level message forward rule, session level stop message forward rule priority by control plane Highest after user face receives the instruction, stops the forwarding of all messages under the session, and according to session level packet buffer strategy into Row packet buffer；After session level starting message forward rule issues, user face could be executed further according to the forwarding strategy of service level The forwarding strategy of specific service level.

The transmission control method of message provided in an embodiment of the present invention provides a solution, when service level forwarding strategy When very more, the quantity of FAR rule can be very huge, and the length of the signaling packet between control plane and user face can be long, SMF, The duration of UPF processing FAR can also increase, and actually NAS signaling Connection Release process, Service Request process, arrearage Stop what user's message forwarding strategy was operated both for entire user conversation.

For FAR rule between SMF and UPF be based on business forwarding strategy, and NAS signaling Connection Release process, Service Request process, PCF issue the case where session level strategy is session level operation, and the embodiment of the present invention provides one kind The method for indicating user face session level message forward rule.The technical solution adopted by the present invention, SMF are stopped by N4 mouthfuls of notice UPF When only or starting message forwards, session level message forward rule is carried, UPF executes session forward rule, the rule according to the instruction Then may include but the instruction that is not limited to E-Packet, caching message instruction etc..When SMF is carried to the session level message forwarding of UPF Rule instruction stops forwarding message, and UPF stops all message forwardings, if SMF indicates that UPF needs session level message simultaneously When caching, UPF executes packet buffer strategy.When the instruction starting of session level message forward rule E-Packets, UPF is further according to industry The FAR forwarding strategy of business grade executes the forwarding strategy of specific service level.

Using the method for the invention, the signaling packet that can be reduced between control plane and user face is long, reduces UPF and individually uses The complexity of family rule process reduces the signaling handling duration of SMF and UPF, network processes time delay is reduced, so that user has more preferably Business experience.

The embodiment of the present invention also provides a kind of forwarding control equipment 1100 of message.Figure 11 is provided in an embodiment of the present invention The structural schematic diagram of the forwarding control equipment of message.As shown in figure 11, which includes processor 1101 and can for storing The memory 1102 of the computer program run on a processor.

Wherein, processor 1101 is for executing the transmission control method of message shown in Fig. 2 when running the computer program The step of, alternatively, the step of transmission control method of message shown in Fig. 3.

In embodiments of the present invention, the forwarding control equipment 1100 of message can also include interface 1103 and bus 1104 Deng, wherein interface 1103 can be used for receiving or sending message, and bus 1104 is used for processor 1101,1102 and of memory Data interaction between interface 1103.

It should be noted that the explanation in the present embodiment with same steps in other embodiments or concept, is referred to Description in other embodiments, details are not described herein again.The other technologies effect of the embodiment of the present invention can refer in other embodiments Description, details are not described herein again.

The embodiment of the present invention also provides a kind of computer readable storage medium, stores on the computer readable storage medium There is user face message retransmission process, the user face message retransmission process realizes turning for message shown in Fig. 2 when being executed by processor The step of sending out control method, alternatively, the step of transmission control method of message shown in Fig. 3.

In practical applications, receiving unit, acquiring unit involved in above-described embodiment, processing unit and transmission unit are equal It can be by central processing unit (Central Processing Unit, CPU), the microprocessor in wireless data sending device (Micro Processor Unit, MPU), digital signal processor (Digital Signal Processor, DSP) or scene Programmable gate array (Field Programmable Gate Array, FPGA) etc. is realized.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

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

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of transmission control method of message, which is characterized in that the described method includes:

User plane functions UPF obtains the corresponding session level of session and forwards rule of conduct FAR；

2. the method according to claim 1, wherein the session level FAR includes the instruction that E-Packets；

If the instruction that E-Packets indicates to stop forwarding message, the user plane functions UPF is according to the corresponding session of session Grade FAR is forwarded control to the message of the session, comprising: the UPF stops forwarding the message of the session；

It E-Packets if the instruction that E-Packets indicates to enable, the user plane functions UPF is according to the corresponding session of session Grade FAR is forwarded control to the message of the session, comprising: the UPF is according to the corresponding service level FAR of the session to institute The message for stating session is forwarded control；Wherein, the corresponding service level FAR of the session is used for the service level according to each business FAR is forwarded control to the message of each business respectively.

3. according to the method described in claim 2, it is characterized in that, the session level FAR further includes caching message instruction；

If the instruction that E-Packets indicates to stop forwarding message, and caching message instruction indicates to enable caching message, then The user plane functions UPF is forwarded control to the message of the session according to the corresponding session level FAR of session, further includes: The UPF caches the message of the session.

4. a kind of transmission control method of message, which is characterized in that the described method includes:

The session level FAR of first instance acquisition session；

The first instance sends the session level FAR of the session to second instance；

5. according to the method described in claim 4, it is characterized in that, the session level FAR is used to indicate the UPF stops forwarding The message of the session；Alternatively, to be used to indicate the UPF corresponding according to each business of the session by the session level FAR Service level FAR is forwarded control to the message of the session respectively.

6. according to the method described in claim 4, it is characterized in that, the first instance be PCF, second instance be SMF when,

The first instance obtains the session level FAR of session, comprising: the PCF generates the session level FAR of the session；

The first instance sends session level FAR to second instance, comprising: the PCF sends the meeting of the session to the SMF Talk about grade FAR.

7. according to the method described in claim 6, it is characterized in that, the PCF sends the session level of the session to the SMF FAR, comprising:

The PCF is modified to the SMF sending strategy and is requested, and the strategy modification request carries the session level FAR of the session.

8. according to the method described in claim 6, it is characterized in that, the PCF generates the session level FAR of the session, comprising:

The PCF receives the expense Status Change instruction that online charging control function entity OCS is sent；

The PCF generates the session level FAR of the session according to expense Status Change instruction.

9. according to the method described in claim 8, it is characterized in that, the PCF indicates to generate according to the expense Status Change The session level FAR of the session, comprising:

If the expense Status Change is designated as amount arrearage instruction, the PCF is determined in the session level FAR of the session The instruction that E-Packets indicate to stop forwarding the message of the session；

If the expense Status Change, which is designated as amount, restores instruction, the PCF is determined in the session level FAR of the session The instruction that E-Packets indicate to enable the message for forwarding the session.

10. according to the method described in claim 4, it is characterized in that, the first instance be SMF, second instance be UPF when,

The first instance obtains the session level FAR of session, comprising: the SMF receives the session level for the session that PCF is sent FAR；Alternatively, the SMF generates the session level FAR of the session；

The first instance sends the session level FAR of the session to second instance, comprising: the SMF sends institute to the UPF State the session level FAR of session.

11. according to the method described in claim 10, it is characterized in that, the SMF generates the session level FAR of the session, packet Include: the SMF receives the first session modification request that access management function AMF is sent；The SMF is repaired according to first session Change request, generates the session level FAR of the session；

Wherein, first session modification request is used to indicate the corresponding service level FAR of the modification session, and the session is corresponding Service level FAR be used to according to the service level FAR of each business be forwarded control to the message of each business respectively；

Accordingly, the first instance sends the session level FAR of the session to second instance, comprising: the SMF is to described UPF sends the second session modification request, and second session modification request carries the session level FAR of the session.

12. according to the method for claim 11, which is characterized in that the SMF is according to first session modification request, really The session level FAR of the fixed session, comprising:

If first session modification request is the Non-Access Stratum signaling NAS connection that the AMF receives terminal device UE transmission It is sent after release request, then the SMF determines that the session level FAR expression stops forwarding message；

If first session modification request is the N2 resource foundation response that the AMF receives access network device AN transmission It sends afterwards, then the SMF determines that the session level FAR indicates to enable and E-Packets.

13. a kind of forwarding of message controls equipment, which is characterized in that the equipment includes processor and can locate for storing The memory of the computer program run on reason device；

Wherein, the processor is for when running the computer program, perform claim to require the forwarding control of 1 to 3 message The step of method processed, alternatively, the step of transmission control method of claim 4 to 12 message.

14. a kind of computer readable storage medium, which is characterized in that be stored with message on the computer readable storage medium and turn Program is sent out, the message retransmission process realizes turning for message as claimed any one in claims 1 to 3 when being executed by processor The step of sending out control method, or, the step of transmission control method of message as described in any one of claim 4 to 12.