CN108271229A - A kind of user plane selection method and device - Google Patents
A kind of user plane selection method and device Download PDFInfo
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- CN108271229A CN108271229A CN201810097172.3A CN201810097172A CN108271229A CN 108271229 A CN108271229 A CN 108271229A CN 201810097172 A CN201810097172 A CN 201810097172A CN 108271229 A CN108271229 A CN 108271229A
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- 238000010187 selection method Methods 0.000 title claims abstract description 18
- 239000013256 coordination polymer Substances 0.000 claims abstract description 98
- 230000006870 function Effects 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 37
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- 238000011282 treatment Methods 0.000 claims abstract description 28
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000004044 response Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 14
- 230000008447 perception Effects 0.000 abstract description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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Abstract
The present invention provides a kind of user plane selection method and device, is related to the communications field, can be selected based on the user plane path accessed using perception to user.This method includes：Control plane module CP receives the user plane reselection request message that applied function module AF is sent；The CP determines UE access the first user plane functions module UPF according to the business information of UE；The CP sends user plane reselection rule to the first UPF and the 2nd UPF respectively, and the user plane reselection rule includes the SSC patterns；Wherein, the 2nd UPF is the UPF that the UE is currently accessed；The CP sends to the 2nd UPF and disconnects session instruction message, is identified including the UE；Also, session connection instruction message is established to the first UPF transmissions, is identified including the UE；The CP sends user plane gravity treatment response message to the AF, including the mark of the first UPF.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of user plane selection method and devices.
Background technology
One of the characteristics of core net evolution of the 5th generation (5th Generation, 5G) mobile communications network is：Control plane
(Control Plane, CP) and user plane (User plane, UP) are kept completely separate.Wherein, user plane network element mainly includes user
Face function module (User plane Funct ion, UPF).
In mobile packet network before 5G, user plane network element GW (gateway, gateway) while need to complete such as session pipe
The signaling traffic flow of reason, policy control, charging etc. and data message forwarding process.Signaling traffic flow is to computing capability requirement
It is very high, and data message forwarding flow is very high to forwarding performance requirement.In 5G mobile communications networks, mutually divided by controlling and forwarding
From mode, the requirement of these two aspects can be met very well.Under normal circumstances, after control plane is detached with user plane, control plane is more
Tend to concentrate deployment, and user plane is then sunk distributed deployment.
In the prior art, 4G and before network in, user plane number of devices is seldom.Which user plane user accesses
Equipment is according to decisions such as signing information, the geographical location information of user, is immobilized after access.And in 5G networks, it uses
The sinking distributed deployment of family face, user plane are divided into multiple equipment, need that the determining most suitable use of access is actually needed according to user
Family face equipment.
Invention content
The application provides a kind of user plane selection method and device, can be based on the user plane accessed using perception to user
Path is selected, and realizes optimization and enhancing to service path.
In order to achieve the above objectives, the application adopts the following technical scheme that：
In a first aspect, the application provides a kind of user plane selection method, this method can include：
Control plane module CP receives the user plane reselection request message that applied function module AF is sent, the user plane gravity treatment
Request message includes UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；
The CP determines UE access the first user plane functions module UPF according to the business information of the UE；The CP
User plane gravity treatment response message is sent to the AF, including the mark of the first UPF；The CP is respectively to described first
UPF and the 2nd UPF sends user plane reselection rule, and the user plane reselection rule includes the SSC patterns；Wherein, it is described
2nd UPF is the UPF that the UE is currently accessed；The CP sends to the 2nd UPF and disconnects session instruction message, including
The UE marks；Also, session connection instruction message is established to the first UPF transmissions, is identified including the UE.
Second aspect, the application provide a kind of user plane selection method, and this method can include：
Applied function module AF sends user plane reselection request message, the user plane reselection request to control plane module CP
Message includes UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；It is described
AF receives the user plane gravity treatment response message that the CP is sent, including the mark of the first UPF.
The third aspect, the application provide a kind of control plane module CP, and control plane module CP includes：
Receiving unit, for receiving the user plane reselection request message of applied function module AF transmissions, the user plane weight
Request message is selected to include UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC moulds
Formula；Determination unit, for determining UE access the first user plane functions module UPF according to the business information of the UE；It sends
Unit, for sending user plane gravity treatment response message to the AF, including the mark of the first UPF；It is described to send list
Member is additionally operable to send user plane reselection rule to the first UPF and the 2nd UPF respectively, be wrapped in the user plane reselection rule
Include the SSC patterns；Wherein, the 2nd UPF is the UPF that the UE is currently accessed；The transmitting element is additionally operable to described
2nd UPF, which is sent, disconnects session instruction message, is identified including the UE；Also, establish session to the first UPF transmissions
Instruction message is connected, is identified including the UE.
Fourth aspect, the application provide a kind of applied function module AF, which includes：
Transmitting element, for sending user plane reselection request message, the user plane reselection request to control plane module CP
Message includes UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；It receives
Unit, for receiving the user plane gravity treatment response message that the CP is sent, including the mark of the first UPF.
5th aspect, the application provide a kind of communication system, which includes the third aspect and its various optional
In realization method it is one of arbitrary described in control plane module CP and fourth aspect and its various optional realization methods in it is arbitrary it
Applied function module AF described in one.
The user plane selection method of the application offer, apparatus and system.AF is if it is determined that the application server of UE access occurs
Variation, can send message to control plane, and instruction control plane reselects UPF for UE.It is different from the prior art, UE can only consolidate
It is dynamic can be based on service-aware for the method for fixed one UPF of access, user plane selection method provided in an embodiment of the present invention
Suitable UPF is selected for UE.So as to fulfill information and demand based on application server, service path is optimized and is increased
By force.
Description of the drawings
Fig. 1 is the communication system block schematic illustration of application of the embodiment of the present invention；
Fig. 2 is user plane selection method schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the structure diagram one of CP provided in an embodiment of the present invention a kind of；
Fig. 4 is the structure diagram one of AF provided in an embodiment of the present invention a kind of；
Fig. 5 is the structure diagram two of AF provided in an embodiment of the present invention a kind of；
Fig. 6 is the structure diagram two of CP provided in an embodiment of the present invention a kind of；
Fig. 7 is the structure diagram three of AF provided in an embodiment of the present invention a kind of.
Specific embodiment
User plane selection method provided in an embodiment of the present invention, apparatus and system are retouched in detail below in conjunction with the accompanying drawings
It states.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, expression may have three kinds of passes
System, for example, A and/or B, can represent：Individualism A exists simultaneously A and B, these three situations of individualism B.Symbol herein
Number "/", only a kind of incidence relation for describing affiliated partner represent the relationship of "or", for example, A/B, represents：Individualism A
Or two kinds of situations of individualism B.
Term " first " and " second " etc. in the specification and attached drawing of the present invention be for distinguish different objects or
Person is for different disposal of the difference to same target rather than the particular order for description object.
In addition, the term " comprising " and " having " being previously mentioned in description of the invention and their any deformation, it is intended that
It is to cover non-exclusive include.Such as process, method, system, product or the equipment for containing series of steps or unit do not have
The step of having listed or unit are defined in, but optionally further includes the step of other are not listed or unit or optionally
It further includes for the intrinsic other steps of these processes, method, product or equipment or unit.
It should be noted that in the embodiment of the present invention, " illustrative " or " such as " etc. words for representing to make example, example
Card or explanation.Be described as in the embodiment of the present invention " illustrative " or " such as " any embodiment or designing scheme should
It is interpreted than other embodiments or designing scheme more preferably or more advantage.Specifically, " illustrative " or " example are used
Such as " word is intended to that related notion is presented in specific ways.
In the description of the present invention, unless otherwise indicated, the meaning of " multiple " refers to two or more.
User plane selection method provided in an embodiment of the present invention can be applied in communication system shown in FIG. 1, the communication
System can be the 5th generation (5th generation, 5G) mobile communications network, can also be other practical mobile radio communications
Network, the present invention not limit.
As shown in Figure 1, the communication network can include：DN (Data Network, data network), CP, UP, AN
(Access Network access network) and UE (User Equipment, user equipment).Wherein, the UE in Fig. 1 can be used for
The AN of operator deployment is connected to by radio open, DN is then accessed by the CP and UP of core net, is answered using what DN was provided
With service；AN is mainly used for providing the access style and bearing capacity needed for UE；CP is mainly used for providing access and mobility pipe
The functions such as reason, policy control, user plane coordinated management；UP mainly provides the functions such as message forwarding；DN can include the network equipment
(such as：The equipment such as application server, router), DN is mainly used for providing data service for UE.It should be noted that Fig. 1 is only
Exemplary architecture figure, in addition to functional unit shown in Fig. 1, which can also include other functional units, the present invention
Embodiment is to this without limiting.
Above-mentioned UE can be user equipment, such as：Mobile phone, computer can also be cellular phone, wireless phone, session setup
Agreement (session initiation protocol, SIP) phone, smart phone, wireless local loop (wireless
Local loop, WLL) stand, personal digital assistant (personal digital assistant, PDA), laptop computer,
Hand-held communication device, Handheld computing device, satellite radio, wireless modem card, TV set-top box (set
Top box, STB), customer premises equipment, CPE (customer premise equipment, CPE) and/or in wireless system
On the miscellaneous equipment that communicates.
Above-mentioned AN, CP, UP can be the network equipment in 5G networks or the network equipment in future evolution network；It can also
It is the network equipment under cloud Radio Access Network (cloud radio access network, CRAN) scene, can also be can
Wearable device or mobile unit etc..
Multiple UPF (User Plane Function, user plane functions module) can be disposed in above-mentioned UP as needed,
Fig. 1 certainly in real network deployment, can be disposed multiple as needed for disposing UPF1, UPF2 and UPF3 in UP
UPF, the embodiment of the present invention is to this without limiting.
Above-mentioned DN can be divided into multiple sub- DN, be illustrated so that DN points are DN1 and DN2 as an example in Fig. 1；In every sub- DN
It can include multiple application servers (Application Server, AS), AS is used to provide application service for UE；It is exemplary
, DN1 includes AS1, AS2, AS3, AS4 and AS5, and DN2 includes AS6 and AS7.Wherein, AS1, AS2, AS3 are small as one
Group, AS4, AS5 are as a group, AS6 and AS7 as a group；There are one AS in each group to include application function
Module (Application Function, AF), AF is for selecting, gravity treatment, positioning, relocates AS, and disappear with core net
Breath interaction.Certainly, in practical applications, in each group, AF can also be independently of the individual device of AS, and the present invention is implemented
Example is to this without limiting.
In the prior art, UE fixes one UPF of access, and in 5G networks, UP sinking distributed deployments, in a communication network
In network, including multiple UPF.The AS that the UPF potential ranges of UE fixation accesses provide data service for the UE is far, brings larger
Time delay；Alternatively, the corresponding AS of UPF break down, the UPF being more suitable for for UE selections is needed, service path optimization is provided for UE
Deng enhancing function.
The embodiment of the present invention provides a kind of user plane selection method, applied to communication system shown in FIG. 1, can be based on UE
Business select UPF.As shown in Fig. 2, this method can include S201-S208：
S201, AF are if it is determined that the AS of UE access changes, it is determined that are the UE gravity treatments UPF.
Illustratively, as shown in Figure 1, AS1, AS2 and AS3 are a groups, DN1 is belonged to, AS1 provides the AF of this group
Function is interacted with core net.AS4 and AS5 is a group, also belongs to DN1, and AS4 provides the AF functions of this group.AS1
The demand (telecommunication) service of video source 1 can be provided for UE, AS2 can provide the demand (telecommunication) service of video source 2 for UE, and AS3 can be carried for UE
For video live broadcast service, AS4 can provide the demand (telecommunication) service of video source 3 for UE, and AS5 can provide the program request of video source 2 for UE
Business.UE establishes session connection by UPF2 and AS4, and uplink and downlink Business Stream is sent by UPF2.
Illustratively, UE stops using the broadcasting business of video source 3, has accessed AS2, and UE is handed over still through UPF2 and AS2
Mutually.
AS1 judges that the AS of UE access changes, it is determined that is the UE gravity treatments UPF.
S202, AF send user plane reselection request message to CP.
Specifically, the user plane reselection request message includes UE marks, the business information of the UE and the meeting of UE
Words and business continuance (session and service continuity, SSC) pattern.
Optionally, the business information of the UE can include following at least one：Data network title (Data Network
Name, DNN), application identities, service traffics filtering information.
Illustratively, DNN can be the DN1 or DN2 in Fig. 1；Application identities can include：1st, 2,3, wherein, 1 represents straight
Business is broadcast, 2 represent session service, and 3 represent demand (telecommunication) service；Service traffics are with filtering the source IP that information is specially the current business of UE
Location, source port, purpose IP address, destination interface and transport layer protocol.
Specifically, SSC patterns include pattern 1, pattern 2 or pattern 3, wherein, pattern 1 represents not allow to change UPF, pattern
2 represent first to disconnect current UPF connections, and resettle new UPF connections, pattern 3 represents first to establish new UPF connections, then disconnects and working as
Preceding UPF connections.Illustratively, in the user plane reselection request message sent in AF to CP, SSC patterns can be pattern 2 or mould
Formula 3.
Illustratively, AS1 sends user plane reselection request message to CP, wherein, carry UE marks, DN1, application identities 3
And SSC patterns 2.
Optionally, it after AF judges that the AS of UE access changes, can just be sent with often determining UE ASs corresponding with its
One user plane reselection request message carries the UE marks of the UE in message；It can also disappear in a user plane reselection request
In breath, the UE marks of one group of UE are carried, for example, when AS1 loads are larger, one group of UE on AS1 is switched into AS6, the AS6
It is the AS for being deployed in another area, identical services being provided with AS1；It can include one group of UE in user plane reselection request message,
And the corresponding business information of each UE.CP receive AF send user plane reselection request message after, can be directed to each UE into
The gravity treatment of row UPF.User plane reselection request message includes the information of UE or the information of one group of UE, and the present invention is implemented
The effect of example does not influence, and the embodiment of the present invention is to this without limiting.
S203, CP receive the user plane reselection request message that AF is sent.
S204, CP determine the first UPF of UE access according to the business information of UE.
Optionally, CP determines that corresponding first UPF of the business information gathers according to the business information of UE, and the CP is from institute
It states in the first UPF set and determines the first UPF.
Illustratively, the business information that includes of user plane reselection request message that CP is received is DNN and application identities,
In, DNN DN1, application identities 3.CP is determined and DN1,3 corresponding UPF of application identities include UPF1, UPF3, CP according to
The load of UPF1, UPF3 select UPFs of the UPF1 as UE access.
Optionally, UPF of the distance of AS corresponding with the business information of UE less than predetermined threshold value is determined as the first UPF by CP
Set.Wherein, predetermined threshold value can determines according to actual conditions, for example, setting predetermined threshold value is 100KM.
Illustratively, it is AS1 and AS2 with DN1 and 3 corresponding AS of application identities, is with UPF of the AS1 distances less than 100KM
UPF3, is UPF1 with UPF of the AS2 distances less than 100KM, and CP determines that UPF1 and UPF3 gathers for optional first UPF.
Further, CP can also be after the first UPF set be determined according to the business information of UE, according to the permission of UE
Further select UPF.Illustratively, CP determines that UPF1 and UPF3 gathers for optional first UPF according to the business information of UE.With
UPF3 it is closest be AS1, AS1 only allows contracted user to access, CP in user plane reselection request message UE mark
Judge, the UE is not the contracted user of AS1, determines the UE access UPF1.
S205, CP send user plane reselection rule to the first UPF and the 2nd UPF respectively.
Specifically, CP sends user plane reselection rule, the user plane reselection rule to the first UPF and the 2nd UPF respectively
Include SSC patterns.
Illustratively, CP determines the first UPF of UE access, is UPF1；UE is currently accessed the 2nd UPF, is UPF2.CP distinguishes
User plane reselection rule is sent to UPF1 and UPF2, it is pattern 2 to carry SSC patterns.
S206, CP send to the 2nd UPF and disconnect session instruction message, and establishing session connection instruction to the first UPF transmissions disappears
Breath.
Specifically, CP is sent to the 2nd UPF disconnects session instruction message, identified including the UE；Also, to first
Session connection instruction message is established in UPF transmissions, is identified including the UE.
Optionally, UE is indicated according to SSC patterns, accesses the 2nd UPF, and disconnect with the first UPF.Optionally, SSC moulds
Formula can be second mode or the third mode, and illustratively, second mode is pattern 2, and the third mode is pattern 3.If the
Two modes, after the 2nd UPF and UE disconnects session connection, the first UPF and UE establishes session connection；If third mould
Formula, the first UPF and UE are established after session connection, and the 2nd UPF and UE disconnects session connection.
Further, if SSC patterns are the third modes, the first UPF and UE are established after session connection, and UE is simultaneously with the
One UPF and the 2nd UPF keeps session connection, and UE or AF will initiatively can be both tied to using stream under the first UPF, can also
The Business Stream for flowing to the 2nd UPF is waited for be turned again under the first UPF after voluntarily terminating.
S207, CP send user plane gravity treatment response message to AF.
Optionally, CP includes the mark of the first UPF to the AF user plane gravity treatment response messages sent.Illustratively, CP
User plane gravity treatment response message is sent to AS1, including UPF1.
S208, AF receive the user plane gravity treatment response message that CP is sent.
User plane selection method provided in an embodiment of the present invention.AF if it is determined that the application server of UE access changes,
Message can be sent to control plane, instruction control plane reselects UPF for UE.It is different from the prior art, UE can only be fixed
The method for accessing a UPF, user plane selection method provided in an embodiment of the present invention, it is dynamically UE that can be based on service-aware
Select suitable UPF.So as to fulfill information and demand based on application server, service path is optimized and is enhanced.
It is above-mentioned that mainly scheme provided in an embodiment of the present invention is described.It is it is understood that above-mentioned in order to realize
Function, CP and AF, which are contained, performs the corresponding hardware configuration of each function and/or software module.Those skilled in the art should be very
It is readily appreciated that with reference to each exemplary CP and AF devices and algorithm steps that the embodiments described herein describes, the present invention
It can be realized with the combining form of hardware or hardware and computer software.Some function is actually with hardware or computer software
The mode of hardware is driven to perform, specific application and design constraint depending on technical solution.Professional technician can be with
Described function is realized using distinct methods to each specific application, but this realization is it is not considered that beyond this hair
Bright range.
The embodiment of the present invention can carry out function module to CP and AF according to above method example or functional unit is drawn
Point, it, can also will be two or more for example, can correspond to each function divides each function module or functional unit
Function is integrated in a processing module.The form that hardware had both may be used in above-mentioned integrated module is realized, can also be used soft
Part function module or the form of functional unit are realized.Wherein, it is to show to the division of module or unit in the embodiment of the present invention
Meaning property, only a kind of division of logic function can have other dividing mode in actual implementation.
The embodiment of the present invention provides a kind of CP, in the case where dividing each function module using corresponding each function, Fig. 3
Show a kind of possible structure diagram of CP involved in above-described embodiment.The CP includes receiving unit 301, determines list
Member 302, transmitting element 303.
Wherein, the receiving unit 301, for receiving the user plane reselection request message of applied function module AF transmissions,
The user plane reselection request message includes UE marks, the business information of the UE and session and the business of user equipment (UE)
Continuity SSC patterns.
The determination unit 302, for determining first user plane functions of UE access according to the business information of the UE
Module UPF.
The transmitting element 303, it is described for sending user plane reselection rule to the first UPF and the 2nd UPF respectively
User plane reselection rule includes the SSC patterns；Wherein, the 2nd UPF is the UPF that the UE is currently accessed.
The transmitting element 303 is additionally operable to send disconnection session instruction message to the 2nd UPF, including described
UE is identified；Also, session connection instruction message is established to the first UPF transmissions, is identified including the UE；
The transmitting element 303 is additionally operable to send user plane gravity treatment response message to the AF, including described first
The mark of UPF.
Optionally, the business information of the UE includes following at least one：Data network title DNN, application identities, business
Traffic filtering information；Wherein, the application identities are the category identities of business；The service traffics filtering information is specially business
Source IP address, source port, purpose IP address, destination interface and transport layer protocol.
Optionally, the determination unit 302 determines the first user plane of UE access work(according to the business information of the UE
Energy module UPF, specifically includes：The determination unit 302, for determining the business information pair according to the business information of the UE
The first UPF set answered；It is additionally operable to determine the first UPF in from the first UPF gathering.、
Optionally, the determination unit 302 determines the business information corresponding first according to the business information of the UE
UPF gathers, and specifically includes：The distance of AS corresponding with the business information is less than predetermined threshold value by the determination unit 302
UPF is determined as the first UPF set.
Optionally, the determination unit 302 is additionally operable to, and the business information pair is being determined according to the business information of the UE
After the first UPF set answered, the access authority for determining the UE is identified according to the UE, and according to the access authority of the UE
Determine that the 2nd UPF gathers from the first UPF set；The determination unit 302 is additionally operable to, and is gathered from the 2nd UPF
In determine the first UPF.
Optionally, the SSC patterns include second mode or the third mode, in the second mode, the 2nd UPF with
After the UE disconnects session connection, the first UPF and UE establishes session connection；In the third mode, described
The one UPF and UE is established after session connection, and the 2nd UPF and UE disconnects session connection.
The embodiment of the present invention provides a kind of AF, in the case where dividing each function module using corresponding each function, Fig. 4
Show a kind of possible structure diagram of AF involved in above-described embodiment.The AF includes transmitting element 401, receives list
Member 402.
Wherein, the transmitting element 401, for sending user plane reselection request message, the use to control plane module CP
Family face reselection request message includes UE marks, the business information of the UE and session and the business continuance of user equipment (UE)
SSC patterns.
The receiving unit 402, for receiving the user plane gravity treatment response message that the CP is sent, including first
The mark of UPF.
Optionally, with reference to Fig. 4, as shown in figure 5, the AF further includes determination unit 403, for the transmitting element 401
Before sending user plane reselection request message to the CP, judged according to the application server AS of the UE access, if the UE
The AS of access changes, it is determined that is the UE gravity treatments UPF.The transmitting element 401, if it is true to be additionally operable to the determination unit 403
It is set to the UE gravity treatments UPF, then sends user plane reselection request message to the CP.
Optionally, the business information of the UE includes following at least one：Data network title DNN, application identities, business
Traffic filtering information；Wherein, the application identities are the category identities of business；The service traffics filtering information is specially business
Source IP address, source port, purpose IP address, destination interface and transport layer protocol.
In the case of using integrated unit, Fig. 6 shows that one kind of CP involved in above-described embodiment is possible
Structure diagram.The CP includes：Processing unit 602 and communication unit 603.Processing unit 602 is used to control the action of CP
Tubulation is managed, for example, performing the step of above-mentioned determination unit 302 performs and/or for performing the other of techniques described herein
Process.Communication unit 603 is used to support the communication of CP and other network entities, for example, performing above-mentioned receiving unit 301, sending
The step of unit 303 performs.CP can also include storage unit 601 and bus 604, and storage unit 601 is used to store the journey of CP
Sequence code and data.
In the case of using integrated unit, Fig. 7 shows that one kind of AF involved in above-described embodiment is possible
Structure diagram.The AF includes：Processing unit 702 and communication unit 703.Processing unit 702 is used to control the action of AF
Tubulation is managed, for example, performing the step of above-mentioned determination unit 403 performs and/or for performing the other of techniques described herein
Process.Communication unit 703 is used to support the communication of AF and other network entities, for example, performing above-mentioned transmitting element 401, receiving
The step of unit 402 performs.AF can also include storage unit 701 and bus 704, and storage unit 701 is used to store the journey of AF
Sequence code and data.
Wherein, above-mentioned 602/ processing unit 702 of processing unit can be the processor or controller in CP/AF, the processing
Device or controller can be realized or perform with reference to the described various illustrative logic blocks of the disclosure of invention, module and
Circuit.The processor or controller can be central processing units, general processor, digital signal processor, application-specific integrated circuit,
Field programmable gate array either other programmable logic device, transistor logic, hardware component or its arbitrary combination.
It can be realized or performed with reference to the described various illustrative logic blocks of the disclosure of invention, module and circuit.Institute
It can also be the combination for realizing computing function to state processor, such as is combined comprising one or more microprocessors, DSP and microprocessor
Combination of device etc..
603/ communication unit 703 of communication unit can be transceiver, transmission circuit or communication interface in CP/AF etc..
601/ storage unit 701 of storage unit can be memory in CP/AF etc., which can include volatibility
Memory, such as random access memory；The memory can also include nonvolatile memory, such as read-only memory, soon
Flash memory, hard disk or solid state disk；The memory can also include the combination of the memory of mentioned kind.
604/ bus 704 of bus can be expanding the industrial standard structure (Extended Industry Standard
Architecture, EISA) bus etc..604/ bus 704 of bus can be divided into address bus, data/address bus, controlling bus etc..
For ease of representing, only represented in Fig. 6/Fig. 7 with a thick line, it is not intended that an only bus or a type of bus.
The embodiment of the present invention also provides a kind of computer readable storage medium, and one is stored in computer readable storage medium
A or multiple programs, one or more programs include instruction, and when the processor of above-mentioned CP/AF performs the instruction, which holds
Each step that CP/AF is performed in method flow shown in row above method embodiment.
The embodiment of the present invention provides a kind of communication system, which can include CP and AF, real to perform the present invention
The user plane selection method of example offer is provided.Above method embodiment specifically may refer to for the description of CP and AF and device is implemented
Associated description in example, details are not described herein again.
It can be realized with reference to the step of described method of the disclosure of invention or algorithm by the mode of hardware,
Can be that the mode of software instruction is performed by processor to realize.Software instruction can be made of corresponding software module, software
Module can be stored on RAM, flash memory, ROM, Erasable Programmable Read Only Memory EPROM (easable programmable ROM,
EPROM), Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM), register, hard disk, movement are hard
In the storage medium of disk, CD-ROM (CD-ROM) or any other form well known in the art.A kind of illustrative storage
Medium couples so as to enable a processor to from the read information, and can be written to the storage medium and believe to processor
Breath.Certainly, storage medium can also be the component part of processor.Pocessor and storage media can be located in ASIC.
Through the above description of the embodiments, it is apparent to those skilled in the art that, for description
It is convenienct and succinct, it, can as needed will be upper only with the division progress of above-mentioned each function module for example, in practical application
It states function distribution to be completed by different function modules, i.e., the internal structure of device is divided into different function modules, to complete
All or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, before can referring to
The corresponding process in embodiment of the method is stated, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or
The division of unit, only a kind of division of logic function can have other dividing mode, such as multiple units in actual implementation
Or component may be combined or can be integrated into another system or some features can be ignored or does not perform.Another point, institute
Display or the mutual coupling, direct-coupling or communication connection discussed can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent product sale or uses
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially
The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products
It embodies, which is stored in a storage medium, is used including some instructions so that a computer
Equipment (can be personal computer, server or the network equipment etc.) or processor are performed described in each embodiment of the present invention
The all or part of step of method.And aforementioned storage medium includes：It is flash memory, mobile hard disk, read-only memory, random
Access the various media that can store program code such as memory, magnetic disc or CD.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.
Claims (19)
1. a kind of user plane selection method, which is characterized in that including：
Control plane module CP receives the user plane reselection request message that applied function module AF is sent, the user plane reselection request
Message includes UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；
The CP determines UE access the first user plane functions module UPF according to the business information of the UE；
The CP sends user plane reselection rule to the first UPF and the 2nd UPF respectively, is wrapped in the user plane reselection rule
Include the SSC patterns；Wherein, the 2nd UPF is the UPF that the UE is currently accessed；
The CP sends to the 2nd UPF and disconnects session instruction message, is identified including the UE；Also, to described
Session connection instruction message is established in one UPF transmissions, is identified including the UE；
The CP sends user plane gravity treatment response message to the AF, including the mark of the first UPF.
2. according to the method described in claim 1, it is characterized in that, the business information of the UE includes following at least one：
Data network title DNN, application identities, service traffics filtering information；
Wherein, the application identities are the category identities of business；The service traffics are with filtering the source IP that information is specially business
Location, source port, purpose IP address, destination interface and transport layer protocol.
3. method according to claim 1 or 2, which is characterized in that the CP determines institute according to the business information of the UE
UE access the first user plane functions module UPF is stated, is specifically included：
The CP determines that corresponding first UPF of the business information gathers according to the business information of the UE；
The CP determines the first UPF from the first UPF set.
4. according to the method described in claim 3, it is characterized in that, the CP determines the industry according to the business information of the UE
The corresponding first UPF set of information of being engaged in, specifically includes：
The UPF that the distance of AS corresponding with the business information is less than predetermined threshold value by the CP is determined as the first UPF set.
5. according to the method described in claim 3, it is characterized in that, the CP determines the industry according to the business information of the UE
After the corresponding first UPF set of information of being engaged in, the method further includes：
The CP identifies the access authority for determining the UE according to the UE, and according to the access authority of the UE from described first
Determine that the 2nd UPF gathers in UPF set；
The CP determines the first UPF from the 2nd UPF set.
6. according to the method described in claim 1, it is characterized in that, the SSC patterns include second mode or the third mode,
In the second mode, after the 2nd UPF and UE disconnects session connection, the first UPF and UE is built
Vertical session connection；In the third mode, the first UPF and UE is established after session connection, the 2nd UPF and institute
It states UE and disconnects session connection.
7. a kind of user plane selection method, which is characterized in that including：
Applied function module AF sends user plane reselection request message, the user plane reselection request message to control plane module CP
Include UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；
The AF receives the user plane gravity treatment response message that the CP is sent, including the mark of the first UPF.
8. the method according to the description of claim 7 is characterized in that the AF sends user plane reselection request message to the CP
Before, the method further includes：
The AF judges according to the application server AS of the UE access, if the AS of the UE access changes, it is determined that be described
UE gravity treatments UPF；
The AF then sends user plane reselection request message if it is determined that for the UE gravity treatments UPF to the CP.
9. method according to claim 7 or 8, which is characterized in that the business information of the UE includes following at least one：
Data network title DNN, application identities, service traffics filtering information；
Wherein, the application identities are the category identities of business；The service traffics are with filtering the source IP that information is specially business
Location, source port, purpose IP address, destination interface and transport layer protocol.
10. a kind of control plane module CP, which is characterized in that including：
Receiving unit, for receiving the user plane reselection request message of applied function module AF transmissions, the user plane gravity treatment please
Message is asked to include UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；
Determination unit, for determining UE access the first user plane functions module UPF according to the business information of the UE；
Transmitting element, for sending user plane reselection rule, the user plane gravity treatment to the first UPF and the 2nd UPF respectively
Rule includes the SSC patterns；Wherein, the 2nd UPF is the UPF that the UE is currently accessed；
The transmitting element is additionally operable to send disconnection session instruction message to the 2nd UPF, be identified including the UE；
Also, session connection instruction message is established to the first UPF transmissions, is identified including the UE；
The transmitting element is additionally operable to send user plane gravity treatment response message to the AF, including the mark of the first UPF
Know.
11. CP according to claim 10, which is characterized in that the business information of the UE includes following at least one：
Data network title DNN, application identities, service traffics filtering information；
Wherein, the application identities are the category identities of business；The service traffics are with filtering the source IP that information is specially business
Location, source port, purpose IP address, destination interface and transport layer protocol.
12. the CP according to claim 10 or 11, which is characterized in that the determination unit is according to the business information of the UE
It determines the first user plane functions of UE access module UPF, specifically includes：
The determination unit, for determining that corresponding first UPF of the business information gathers according to the business information of the UE；Also
For determining the first UPF from the first UPF set.
13. CP according to claim 12, which is characterized in that the determination unit is determined according to the business information of the UE
The corresponding first UPF set of the business information, specifically includes：
The UPF that the distance of AS corresponding with the business information is less than predetermined threshold value by the determination unit is determined as the first UPF
Set.
14. CP according to claim 12, which is characterized in that
The determination unit is additionally operable to, and the corresponding first UPF collection of the business information is being determined according to the business information of the UE
After conjunction,
Identify the access authority for determining the UE according to the UE, and according to the access authority of the UE from the first UPF collection
Determine that the 2nd UPF gathers in conjunction；
The determination unit is additionally operable to, and the first UPF is determined from the 2nd UPF set.
15. CP according to claim 10, which is characterized in that the SSC patterns include second mode or the third mode,
In the second mode, after the 2nd UPF and UE disconnects session connection, the first UPF and UE is built
Vertical session connection；In the third mode, the first UPF and UE is established after session connection, the 2nd UPF and institute
It states UE and disconnects session connection.
16. a kind of applied function module AF, which is characterized in that including：
Transmitting element, for sending user plane reselection request message, the user plane reselection request message to control plane module CP
Include UE marks, the business information of the UE and the session of user equipment (UE) and business continuance SSC patterns；
Receiving unit, for receiving the user plane gravity treatment response message that the CP is sent, including the mark of the first UPF.
17. AF according to claim 16, which is characterized in that the AF is further included：
Determination unit before sending user plane reselection request message to the CP for the transmitting element, connects according to the UE
The application server AS entered judges, if the AS of the UE access changes, it is determined that is the UE gravity treatments UPF；
If being additionally operable to the determination unit is determined as the UE gravity treatments UPF, user plane is sent to the CP for the transmitting element
Reselection request message.
18. AF according to claim 16 or 17, which is characterized in that the business information of the UE includes following at least one
Kind：
Data network title DNN, application identities, service traffics filtering information；
Wherein, the application identities are the category identities of business；The service traffics are with filtering the source IP that information is specially business
Location, source port, purpose IP address, destination interface and transport layer protocol.
19. a kind of communication system, including control plane module CP and claim 16-18 described in claim 10-15 any one
Applied function module AF described in any one.
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