CN109257815A - A kind of management method and device of registration request - Google Patents
A kind of management method and device of registration request Download PDFInfo
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- CN109257815A CN109257815A CN201710576306.5A CN201710576306A CN109257815A CN 109257815 A CN109257815 A CN 109257815A CN 201710576306 A CN201710576306 A CN 201710576306A CN 109257815 A CN109257815 A CN 109257815A
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- pdu session
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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Abstract
The invention discloses a kind of management method of registration request and devices, applied to mobile network, it include the first access control and mobile management function to ps domain AMF, the second access control and mobile management function to ps domain AMF and conversation management functional SMF in the mobile network, which comprises the UE is redirected to the 2nd AMF by the first login request message that the first AMF is sent according to user terminal UE；First AMF forwards the control plane message of the UE between the 2nd AMF and SMF, to reach the flexibility for improving message transmission, reduces the technical effect of signaling resource wastage.
Description
Technical field
The present invention relates to the management methods and device of field of communication technology more particularly to a kind of registration request.
Background technique
When UE (User Equipment, user terminal) is connected to network, UE provides the NSSAI of request to network
(Network Slice Selection Assistance Information, network slice selection assistance information), the NSSAI
Including multiple S-NSSAI (Single-Network Slice Selection Assistance Information, single net
Network slice selection assistance information).Network determines receiving according to the NSSAI that the NSSAI and UE of the UE request provided contract
Then the NSSAI of receiving is returned to UE by NSSAI.The NSSAI of receiving includes multiple S-NSSAI, and different S-NSSAI may
Service is provided by different AMF.When UE requests to establish PDU session relevant to some S-NSSAI, UE sends S-NSSAI
Give AMF (Access Control and Mobility Management Function, access control and mobile management function
Can), AMF may can not provide service because connection is less than relevant slice for UE.Existing solution is UE from network
It goes to register, then reregisters with network using the NSSAI of new request.
When the connection for the S-NSSAI not supported with AMF is established in UE request, UE registration is gone from network so that UE with should
The established control plane connection all release of AMF, UE, which needs to reregister with other AMF, to be serviced, the prior art
In such logon mode will cause signaling resource wastage and reduce user experience the technical issues of.
Summary of the invention
The embodiment of the present invention is in the prior art for solving by providing the management method and device of a kind of registration request
The technical issues of logon mode will cause signaling resource wastage and reduce user experience.
In a first aspect, one embodiment of the invention provides a kind of management method of registration request, it is applied to mobile network, institute
The method of stating includes:
The UE is redirected to the 2nd AMF according to the first login request message that user terminal UE is sent by the first AMF；
First AMF is in the 2nd AMF and the first SMF (Session Management Function, session management function
Can) between forward the control plane message of the UE.
Optionally, the first AMF forwards the UE's between the 2nd AMF and the first conversation management functional SMF
Control plane message, comprising:
When the 2nd AMF receives the PDU session information that the UE is sent and session management SM request message and described
The corresponding PDU session of PDU session information is that UE is connected to before the 2nd AMF and establishes, and the 2nd AMF is by the PDU session
Information and the SM request message are sent to the first AMF, and the PDU session information is transmitted to described by the first AMF
First SMF；Or
If the first AMF receives the control plane message for the UE that the first SMF is sent, described first
AMF is directed to the control plane message of the UE to the 2nd AMF forwarding.
Optionally, described when the 2nd AMF receives the PDU session information that the UE is sent and session management SM request
Message and the corresponding PDU session of the PDU session information are that UE is connected to before the 2nd AMF and establishes, and the 2nd AMF is by institute
It states PDU session information and the SM request message is sent to the first AMF, comprising:
It is mentioned when the 2nd AMF receives PDU session information, the session management SM request message and first that the UE is sent
Show information, the 2nd AMF is based on first prompt information and is sent to the PDU session information and the SM request message
First AMF, wherein first prompt information is UE connection for characterizing the corresponding PDU session of the PDU session information
It is established before to the 2nd AMF.
Optionally, the first AMF is sent out according to the first login request message that user terminal UE is sent to the 2nd AMF
It include the first PDU session information of the established UE in the redirection message sent；
It is described when the 2nd AMF receives the 2nd PDU session information that the UE is sent and session management SM request disappears
Breath and the 2nd AMF determine that the corresponding PDU session of the 2nd PDU session information is established before UE is connected to the 2nd AMF
, the 2nd PDU session information and the SM request message are sent to the first AMF by the 2nd AMF, comprising:
When the 2nd AMF receives the 2nd PDU session information and session management SM request message, if described second
For PDU session information in the first PDU session information, the 2nd AMF asks the 2nd PDU session information and the SM
Message is asked to be sent to the first AMF.
Optionally, the first note that the first access control and mobile management function to ps domain AMF are sent according to user terminal UE
The UE is redirected to the second access control and mobile management function to ps domain AMF by volume request message, comprising:
The first login request message that first AMF is sent according to user terminal UE is reset to the 2nd AMF transmission
To message, wherein include interim request prompt information in first login request message, include institute in the redirection message
State interim request prompting message.
Optionally, forwarded between the 2nd AMF and the first SMF in the first AMF for the UE message it
Afterwards, the method also includes:
If the UE is directed to the interim request of the 2nd AMF, the UE returns to the first AMF.
Optionally, the UE return the first AMF includes:
First AMF receives the second login request message that the UE is sent；
First AMF sends the first notification message to the 2nd AMF；
2nd AMF sends the first confirmation message for being directed to the first notification message to the first AMF；
First AMF sends the registration received message for being directed to second login request message to the UE.
Optionally, the first confirmation message for the first notification message is sent to the first AMF in the 2nd AMF
Afterwards, the method also includes:
2nd AMF notifies that the 2nd SMF discharges the PDU session of the established UE and/or the 2nd AMF is deleted
The context of the UE.
Optionally, the UE return the first AMF includes:
2nd AMF is sent to the first AMF to be terminated for characterizing the connection between the UE and the 2nd AMF
Second notification message；
First AMF sends the second confirmation message for being directed to the second notification message to the 2nd AMF.
Optionally, the control plane message of the UE is forwarded between the 2nd AMF and the first SMF in the first AMF
Afterwards, the method also includes:
In a preset time period, if the first AMF determines the UE and is not returned to the first AMF, described
One AMF notifies that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the UE
Context.
Second aspect, one embodiment of the invention provide a kind of managing device of registration request, are applied to mobile network, institute
Stating device includes the first access control and mobile management function to ps domain AMF, the second access control and mobile management function to ps domain AMF and meeting
Talk about management function SMF；
The UE is redirected to by the first AMF, the first login request message for being sent according to user terminal UE
2nd AMF；
First AMF is also used to forward the control plane of the UE to disappear between the 2nd AMF and the first SMF
Breath.
Optionally, after the UE is redirected to the 2nd AMF::
2nd AMF, for when receive PDU session information and session management SM request message that the UE is sent and
The corresponding PDU session of the PDU session information is established before UE is connected to the 2nd AMF, by the PDU session information and institute
It states SM request message and is sent to the first AMF；First AMF, for the PDU session information to be transmitted to described first
SMF；Or
First AMF, if the control plane message for the UE sent for receiving the first SMF, is used for
The control plane message of the UE is directed to the 2nd AMF forwarding.
Optionally, the 2nd AMF is specifically used for: as PDU session information, the session management SM for receiving the UE transmission
Request message and the first prompt information are based on first prompt information for the PDU session information and the SM request message
It is sent to the first AMF, wherein first prompt information, which is used to characterize the corresponding PDU session of the PDU session information, is
What UE was established before being connected to the 2nd AMF.
Optionally, the first AMF is sent out according to the first login request message that user terminal UE is sent to the 2nd AMF
Include the first PDU session information of the established UE in the redirection message sent, the 2nd AMF is specifically used for:
When the 2nd AMF receives the 2nd PDU session information and session management SM request message and described second
PDU session information sends the 2nd PDU session information and the SM request message in the first PDU session information
To the first AMF.
Optionally, the first AMF, the first login request message for being sent according to user terminal UE is to described second
AMF, which is sent, redirects message, wherein includes interim request prompt information, the redirection in first login request message
It include the interim request prompting message in message；
First AMF, for the UE to be redirected to the 2nd AMF.
Optionally, forwarded between the 2nd AMF and the first SMF in the first AMF for the UE message it
Afterwards, if the interim request that the UE is directed to the 2nd AMF terminates, the UE returns to the first AMF.
Optionally, the UE returns to the first AMF, specifically includes:
First AMF, the second login request message sent for receiving the UE；
First AMF, for sending the first notification message to the 2nd AMF；
2nd AMF, for sending the first confirmation message for being directed to the first notification message to the first AMF；
First AMF, for sending the registration received message for being directed to second login request message to the UE.
Optionally, the first confirmation message for the first notification message is sent to the first AMF in the 2nd AMF
Afterwards, the 2nd AMF, for notifying the 2nd SMF to discharge the PDU session of the established UE and/or deleting the UE's
Hereafter.
Optionally, the UE returns to the first AMF, specifically includes:
2nd AMF, for sending to the first AMF for characterizing the company between the UE and the 2nd AMF
The second notification message of binding beam；
First AMF, for sending the second confirmation message for being directed to the second notification message to the 2nd AMF.
Optionally, the control plane message of the UE is forwarded between the 2nd AMF and the first SMF in the first AMF
Afterwards, in a preset time period, if the first AMF determines that the UE is not returned to the first AMF, the first AMF,
For notifying that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the UE's
Hereafter.
The third aspect, one embodiment of the invention provide a kind of computer installation, and described device includes processor, the place
The step of method as described in first aspect embodiment is realized when reason device is for executing the computer program stored in memory.
Fourth aspect, the embodiment of the present invention four provide a kind of computer readable storage medium, are stored thereon with computer
Program, when the computer program is executed by processor the step of realization method as described in first aspect embodiment.
The one or more technical solutions provided in the embodiment of the present invention, when UE is registered to new AMF, original AMF
The control plane message of the UE can be forwarded between new AMF and SMF, to reach reduction signaling resource wastage and raising
The technical effect of user experience.
Detailed description of the invention
Fig. 1 is the first pass figure of the management method of registration request in the embodiment of the present invention；
Fig. 2 is the second flow chart of the management method of registration request in the embodiment of the present invention；
Fig. 3 is the first schematic diagram that UE returns to the first AMF in the embodiment of the present invention；
Fig. 4 is the second schematic diagram that UE returns to the first AMF in the embodiment of the present invention；
Fig. 5 is the first schematic diagram of the managing device of registration request in the embodiment of the present invention.
Specific embodiment
In order to solve the above-mentioned technical problem, the general thought of the technical solution in the embodiment of the present invention is as follows: a kind of registration
The management method and device of request, are applied to mobile network, include the first access control and mobility pipe in the mobile network
Manage function AMF, the second access control and mobile management function to ps domain AMF and conversation management functional SMF, which comprises described
The UE is redirected to the 2nd AMF by the first login request message that the first AMF is sent according to user terminal UE；Described
One AMF forwards the control plane message of the UE between the 2nd AMF and SMF.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
As shown in Figure 1, the embodiment of the present invention one provides a kind of management method of registration request, it is applied to mobile network,
The described method includes:
The UE is redirected to second according to the first login request message that user terminal UE is sent by S101, the first AMF
AMF；
S102, the first AMF forward the control plane message of the UE between the 2nd AMF and the first SMF.
Step S101 can specifically include:
UE sends the first login request message to the first AMF, if the request carried in first login request message
The NSSAI of the receiving of NSSAI and the first AMF UE obtained is incompatible or can not coexist, for example, the first login request message
The NSSAI of the request of middle carrying is not in the NSSAI of the receiving, then the first AMF is determined and taken in the first login request message
The 2nd AMF that the NSSAI of the request of band can be compatible with or coexist.Specifically, the first AMF sent according to user terminal UE
One login request message sends to the 2nd AMF and redirects message, and then the UE is redirected to described second by the first AMF
AMF。
It further, can also include interim request prompt information in first login request message, then the first AMF is sent
To also including the interim request prompting message in the redirection message of the 2nd AMF, then the UE is redirected to by the first AMF
2nd AMF.The interim request prompting message is interim for characterizing the first login request message, for example, when UE is executed
It is new in application, UE discovery it is new using S-NSSAI and receiving NSSAI it is incompatible.UE initiates registration process, and UE can
Including the NSSAI of new request in RRC information or in registration message.UE sentences according to the time span and frequency of application execution
Break this registration request be it is interim or prolonged, if UE is temporarily to execute the application, UE is also in registration message
Carry interim prompt information.Such as user opens water meter reporting functions, the water meter number in family is reported to application server, this is answered
The execution time is short and frequency is low.
In addition, if UE sends the first login request message to the first AMF, if what is carried in first login request message asks
The NSSAI asked can be compatible with the NSSAI of the receiving of the first AMF UE obtained or be coexisted, then the first AMF is returned to the UE
Re-injection volume received message carries the NSSAI of receiving in the registration received message.
After executing the step S101, the 2nd AMF establishes the connection between the UE；It then proceedes to execute step
Rapid S102, step S102 can specifically include two kinds of implementations:
Mode one: when the 2nd AMF receives the PDU session information and session management SM request message that the UE is sent
And the corresponding PDU session of the PDU session information is established before UE is connected to the 2nd AMF, the 2nd AMF will be described
PDU session information and the SM request message are sent to the first AMF, and the first AMF forwards the PDU session information
To the first SMF.Then, the first SMF, which is based on the PDU session information, can be managed the PDU session, specifically, the
One SMF can pass sequentially through the management message of the first AMF, the 2nd AMF to UE transmission about the PDU session.Wherein, described
PDU session information and the SM request message can be packaged in a message carry out send perhaps sent respectively or
The PDU session information is carried in the SM request message；PDU session information can be the one or more of mark PDU session
Information, such as PDU session id or other PDU session identifications etc..Wherein, PDU session information described in which is corresponding
PDU session is established before UE is connected to the 2nd AMF, can be judged by the 2nd AMF.2nd AMF judges the PDU meeting
The corresponding PDU session of words information is that the specific implementation established before UE is connected to the 2nd AMF includes:
Mode a:UE provides the information:
UE sends PDU session information, session management SM request message and prompt information to the 2nd AMF.The prompt information table
The bright PDU session is established before UE is connected to the 2nd AMF.
2nd AMF is sent to the first AMF according to the prompt information, by PDU session information and session management SM request message.
The b: the two AMF itself of mode judgement:
UE sends PDU session information and session management SM request message to the 2nd AMF；
2nd AMF cannot identify that the PDU session information, the 2nd AMF disappear PDU session information and session management SM request
Breath is sent to the first AMF.
The c: the two AMF of mode judges according to the information that the first AMF is provided；
When UE is redirected to two AMF by the first AMF, the first AMF also includes the established PDU of UE in redirecting message
The information of session.
When UE, which sends PDU session information and session management SM to the 2nd AMF, to be requested, if the PDU session information is the
In the information for the established PDU session of UE that one AMF is provided, the 2nd AMF sends PDU session information and session management SM request
To the first AMF.
The specific implementation two of the step S102 are as follows: if the first AMF receives the needle that the first SMF is sent
To the control plane message of the UE, the first AMF is directed to the control plane message of the UE to the 2nd AMF forwarding.
After executing step S102, if further including having interim request prompt information, the party in the first login request message
Method can also include the following steps:
If the interim request that the UE is directed to the 2nd AMF terminates, the UE returns to the first AMF.
Wherein, it may include following two implementation that the UE, which returns to the first AMF:
Mode one, the first AMF receive the second login request message that the UE is sent；
First AMF sends the first notification message to the 2nd AMF；
2nd AMF to the first AMF send be directed to the first notification message the first confirmation message, described second
AMF notifies that the 2nd SMF discharges the PDU session of the established UE and/or the 2nd AMF deletes the context of the UE；
First AMF sends the registration received message for being directed to second login request message to the UE.
Mode two, the 2nd AMF are sent to the first AMF for characterizing between the UE and the 2nd AMF
Connect the second notification message terminated；
First AMF sends the second confirmation message for being directed to the second notification message to the 2nd AMF.
Alternatively, after executing step S102, regardless of whether including interim request prompt in the first login request message
Information, this method can also include the following steps:
In a preset time period, if the first AMF determines the UE and is not returned to the first AMF, described
One AMF notifies that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the upper of the UE
Hereafter.Specifically, after executing step S102, the first AMF starts timer, timer expiry but UE is not returned, then and the
One AMF notifies the first SMF to discharge the PDU session of the established UE, and discharges the context for the UE being locally stored.
As shown in Fig. 2, illustrating as follows to better understand the present embodiment to the management method progress of registration request
It is bright:
S201, UE send the first login request message to the first AMF, include the NSSAI of request in the message；
S202, if the UE that the NSSAI of the request and the first AMF are obtained to receive NSSAI incompatible or can not coexist,
Then the first AMF passes through NSSF (Network Slice Selection Function, network are sliced selection function)/NRF
(Network Repository Function, network storage function) executes slice selection course；
S203, the first AMF are determined to can be compatible with the NSSAI of the request or the 2nd AMF that coexists, this first
AMF sends Redirection Request message to the 2nd AMF, includes the first login request message in the message, or further comprise slice
Selection operation as a result, the result for being wherein sliced selection operation is, for example, the NSSAI and NSI that the UE needs receiving to be used
(network slice instance, network are sliced example) etc..
S204, the 2nd AMF return to redirected validation message to the first AMF；
S205, the first AMF send weight to the RAN (Radio Access Network, wireless access network) connecting with the UE
Directional commands message carries the nodal information of the RAN in the message；
S206, the RAN discharge itself N2 between the first AMF and connect；
S207, the 2nd AMF establish the N2 connection between the RAN node；
S208, the 2nd AMF return to registration received message to UE；
S209, the first AMF forward the control plane message of the UE between the 2nd AMF and SMF.Specifically,
2nd AMF receives the PDU session information and SM request message of UE transmission, if the corresponding PDU session of the PDU session information
It is to be established before UE is connected to the 2nd AMF, PDU session information and SM request message are transmitted to the first AMF by the 2nd AMF.The
Information relevant to SMF is sent to SMF according to the information of PDU session by one AMF, wherein information relevant to SMF is, for example,
PDU session information, PDU session information can be mark PDU session one or more information, such as PDU session id or its
His PDU session identification etc.；Or the first AMF receive the control plane message for the UE of SMF transmission, the first AMF is to the
Two AMF forward the message, in addition, the first AMF is also possible to send the mark of UE to the 2nd AMF.
After executing step S209, the method can also include the following steps:
In a preset time period, if the first AMF determines the UE and is not returned to the first AMF, described
One AMF notifies that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the upper of the UE
Hereafter.Specifically, after executing step S209, the first AMF starts timer, timer expiry but UE is not returned, then and the
One AMF notifies SMF to discharge the established PDU session of UE, and discharges the context for the UE being locally stored.
It further, can also include interim request prompt information in the first login request message in above-mentioned S201；If
Include interim request prompt information in first login request message, continues to execute step S202 and step S203, then above-mentioned S203
In Redirection Request message in include the interim request prompting message；It then proceedes to execute above-mentioned S204-S209.
Alternatively, this method can also include the following steps: after having executed S209
If the interim request that the UE is directed to the 2nd AMF terminates, the UE returns to the first AMF.Wherein, institute
Stating UE return the first AMF can be realized by the following two kinds mode:
As shown in Figure 3: mode one includes the following steps:
S301, the UE send RRC information to RAN, include the second login request message in the message and the first AMF is the UE
The temporary identifier of distribution；
Second login request message is sent to the first AMF according to temporary identifier by S302, RAN.
S303, the first AMF send UE connection notice to the 2nd AMF.
S304, the 2nd AMF send UE connection confirmation to the first AMF, then delete the context of UE.
S305, the first AMF send registration received message to UE.
As shown in figure 4, mode two includes the following steps:
S401, the 2nd AMF send connection end notification message to the first AMF, include the mark of UE in the message.If UE
The RAN node of connection changes, and the information for the RAN that UE is currently connected also is carried in message.
S402, the first AMF, which send connection to the 2nd AMF, terminates confirmation message.
UE deletes the PDU session established by the 2nd AMF, reuses the letter by the first AMF PDU session established
Breath.
When the UE returns to the first APF, this method further includes following steps:
First AMF sends a notification message to SMF, and the prompt information that UE is returned is carried in message；
SMF sends request message to UPF, carries the prompt information for receiving downlink data notification message in message；
UPF returns to confirmation message to SMF.
SMF returns to confirmation message to AMF.
As shown in figure 5, described device includes first second embodiment of the present invention provides a kind of managing device of registration request
Access control and the access of mobile management function to ps domain AMF 501, second control and mobile management function to ps domain AMF 502 and the first session
Management function SMF 503；
First AMF 501, the first login request message for being sent according to user terminal UE reset the UE
To arrive the 2nd AMF 502；
The first AM F 501, for forwarding the UE between the 2nd AMF 502 and the first SMF 503
Control plane message.
UE sends the first login request message to the first AMF, if the request carried in first login request message
The NSSAI of the receiving of NSSAI and the first AMF UE obtained is incompatible or can not coexist, for example, the first login request message
The NSSAI of the request of middle carrying is not in the NSSAI of the receiving, then the first AMF is determined and taken in the first login request message
The 2nd AMF that the NSSAI of the request of band can be compatible with or coexist.Specifically, the first AMF, for according to user terminal UE
The first login request message sent sends to the 2nd AMF and redirects message, wherein in first login request message
It include the interim request prompting message in the redirection message including temporarily requesting prompt information；First AMF is used
In the UE is redirected to the 2nd AMF.
It further, can also include interim request prompt information in first login request message, then the first AMF is sent
To also including the interim request prompting message in the redirection message of the 2nd AMF, then the UE is redirected to by the first AMF
2nd AMF.The interim request prompting message is interim for characterizing the first login request message, for example, when UE is executed
It is new in application, UE discovery it is new using S-NSSAI and receiving NSSAI it is incompatible.UE initiates registration process, and UE can
Including the NSSAI of new request in RRC information or in registration message.UE sentences according to the time span and frequency of application execution
Break this registration request be it is interim or prolonged, if UE is temporarily to execute the application, UE is also in registration message
Carry interim prompt information.Such as user opens water meter reporting functions, the water meter number in family is reported to application server, this is answered
The execution time is short and frequency is low.
In addition, if UE sends the first login request message to the first AMF, if what is carried in first login request message asks
The NSSAI asked can be compatible with the NSSAI of the receiving of the first AMF UE obtained or be coexisted, then the first AMF is returned to the UE
Received message is registered, the NSSAI of receiving is carried in the registration received message.
In the first AMF 501, the first login request message for being sent according to user terminal UE is heavy by the UE
After being directed to the 2nd AMF 502, the 2nd AMF 502, the connection for establishing between the UE；
First AMF, for forwarding the control plane message of the UE between the 2nd AMF and the first SMF, including with
Lower two kinds of implementations:
Mode one: the 2nd AMF, after the UE is redirected to the 2nd AMF, if receiving what the UE was sent
PDU session information and session management SM request message and the corresponding PDU session of the PDU session information is that UE is connected to second
It is established before AMF, the PDU session information and the SM request message is sent to the first AMF；First AMF,
For the PDU session information to be transmitted to the first SMF.Then, the first SMF can be to this based on the PDU session information
PDU session is managed, and specifically, the first SMF can pass sequentially through the first AMF, the 2nd AMF and send to the UE about this
The management message of PDU session.Wherein, the corresponding PDU session of PDU session information described in which is that UE is connected to the 2nd AMF
It establishes, can be judged by the 2nd AMF before.2nd AMF judges that the corresponding PDU session of the PDU session information is UE
The concrete methods of realizing of foundation includes: before being connected to the 2nd AMF
Mode a:UE provides the information:
UE sends PDU session information, session management SM request message and prompt information to the 2nd AMF.The prompt information table
The bright PDU session is established before UE is connected to the 2nd AMF.
2nd AMF is sent to the first AMF according to the prompt information, by PDU session information and session management SM request message.
The b: the two AMF itself of mode judgement:
UE sends PDU session information and session management SM request message to the 2nd AMF；
2nd AMF cannot identify that the PDU session information, the 2nd AMF disappear PDU session information and session management SM request
Breath is sent to the first AMF.
The c: the two AMF of mode judges according to the information that the first AMF is provided；
When UE is redirected to two AMF by the first AMF, the first AMF also includes the established PDU of UE in redirecting message
The information of session.
When UE, which sends PDU session information and session management SM to the 2nd AMF, to be requested, if the PDU session information is the
In the information for the established PDU session of UE that one AMF is provided, the 2nd AMF sends PDU session information and session management SM request
To the first AMF.First AMF forwards the specific of the control plane message of the UE between the 2nd AMF and the first SMF
Implementation two are as follows: the first AMF, for after the UE is redirected to the 2nd AMF, if receiving described first
The control plane message for the UE that SMF is sent is directed to the control plane message of the UE to the 2nd AMF forwarding.
Disappearing for the UE is forwarded between the 2nd AMF and the first conversation management functional SMF in the first AMF
After breath, if further including having interim request prompt information and the UE is directed to the 2nd AMF in the first login request message
Interim request terminate, the UE returns to the first AMF.Alternatively, in a preset time period, regardless of the first registration request disappears
It whether include interim request prompt information in breath, if the first AMF determines that the UE is not returned to the first AMF,
First AMF notifies the first SMF to discharge the PDU session of the established UE and/or further delete the UE's
Context.Specifically, the first AMF starts timer, and timer expiry but UE is not returned, then the first AMF notifies the first SMF to release
The established PDU session of UE is put, and discharges the context for the UE being locally stored.
Wherein, it may include following two implementation that the UE, which returns to the first AMF:
Mode one, the first AMF receive the second login request message that the UE is sent；
First AMF sends the first notification message to the 2nd AMF；
2nd AMF to the first AMF send be directed to the first notification message the first confirmation message, described second
AMF notifies that the 2nd SMF discharges the PDU session of the established UE and/or the 2nd AMF deletes the context of the UE；
First AMF sends the registration received message for being directed to second login request message to the UE.
Mode two, the 2nd AMF are sent to the first AMF for characterizing between the UE and the 2nd AMF
Connect the second notification message terminated；
First AMF sends the second confirmation message for being directed to the second notification message to the 2nd AMF.
The managing device of the registration request include the first AMF, the 2nd AMF and SMF, also may further include RAN or
Other network side entity function devices, the management of the registration request of specific steps and embodiment one kind of the working principle of the device
Method is identical, and details are not described herein.
The embodiment of the present invention three provides a kind of computer installation, and described device includes processor, and the processor is used for
The step of realizing the method as described in embodiment one when executing the computer program stored in memory.
The embodiment of the present invention four provides a kind of computer readable storage medium, is stored thereon with computer program, described
The step of method as described in embodiment one is realized when computer program is executed by processor.
Technical solution in the embodiments of the present invention, at least have the following technical effects or advantages:
When UE is registered to new AMF, original AMF can forward the control plane of the UE between new AMF and SMF
Message, even if UE in the case where not reregistering with original AMF, can also be realized between original AMF and be communicated, to reach
The flexibility for improving message transmission has been arrived, the technical effect of signaling resource wastage is reduced.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Claims (22)
1. a kind of management method of registration request is applied to mobile network, which is characterized in that the described method includes:
First access control and mobile management function to ps domain AMF will be described according to the first login request message that user terminal UE is sent
UE is redirected to the second access control and mobile management function to ps domain AMF；
First AMF forwards the control plane message of the UE between the 2nd AMF and the first conversation management functional SMF.
2. the method as described in claim 1, which is characterized in that the first AMF is in the 2nd AMF and the first session management
The control plane message of the UE is forwarded between function SMF, comprising:
When the 2nd AMF receives the PDU session information that the UE is sent and session management SM request message and the PDU meeting
The corresponding PDU session of words information is established before UE is connected to the 2nd AMF, the 2nd AMF by the PDU session information and
The SM request message is sent to the first AMF；The PDU session information is transmitted to described first by the first AMF
SMF；Or
If the first AMF receives the control plane message for the UE that the first SMF is sent, the first AMF to
The 2nd AMF forwarding is directed to the control plane message of the UE.
3. method according to claim 2, which is characterized in that described to receive the PDU that the UE is sent as the 2nd AMF
Session information and session management SM request message and the corresponding PDU session of the PDU session information be UE be connected to the 2nd AMF it
Preceding foundation, the PDU session information and the SM request message are sent to the first AMF by the 2nd AMF, comprising:
When the 2nd AMF receives PDU session information, session management SM request message and the first prompt letter that the UE is sent
The PDU session information and the SM request message are sent to described by breath, the 2nd AMF based on first prompt information
First AMF, wherein first prompt information is that UE is connected to for characterizing the corresponding PDU session of the PDU session information
It is established before two AMF.
4. method according to claim 2, it is characterised in that:
The redirection that first AMF is sent according to the first login request message that user terminal UE is sent to the 2nd AMF
It include the first PDU session information of the established UE in message；
It is described when the 2nd AMF receive the 2nd PDU session information that the UE is sent and session management SM request message and
2nd AMF determines that the corresponding PDU session of the 2nd PDU session information is established before UE is connected to the 2nd AMF, institute
It states the 2nd AMF and the 2nd PDU session information and the SM request message is sent to the first AMF, comprising:
When the 2nd AMF receives the 2nd PDU session information and session management SM request message, if the 2nd PDU
For session information in the first PDU session information, the 2nd AMF requests the 2nd PDU session information and the SM
Message is sent to the first AMF.
5. the method as described in claim 1, which is characterized in that the first access control and mobile management function to ps domain AMF root
The UE is redirected to the second access control and mobile management function according to the first login request message that user terminal UE is sent
Energy AMF, comprising:
The first login request message that first AMF is sent according to user terminal UE, which sends to redirect to the 2nd AMF, to disappear
Breath, wherein include interim request prompt information in first login request message, include described face in the redirection message
When request prompting message；
First AMF, for the UE to be redirected to the 2nd AMF.
6. method as claimed in claim 5, which is characterized in that in the first AMF in the 2nd AMF and the first session pipe
Forwarding between function SMF is managed to be directed to after the message of the UE, the method also includes:
If the interim request that the UE is directed to the 2nd AMF terminates, the UE returns to the first AMF.
7. method as claimed in claim 6, which is characterized in that the UE returns to the first AMF and includes:
First AMF receives the second login request message that the UE is sent；
First AMF sends the first notification message to the 2nd AMF；
2nd AMF sends the first confirmation message for being directed to the first notification message to the first AMF；
First AMF sends the registration received message for being directed to second login request message to the UE.
8. the method for claim 7, which is characterized in that sent in the 2nd AMF to the first AMF and be directed to first
After first confirmation message of notification message, the method also includes:
2nd AMF notifies the 2nd SMF to discharge described in the PDU session and/or the 2nd AMF deletion of the established UE
The context of UE.
9. method as claimed in claim 6, which is characterized in that the UE returns to the first AMF and includes:
2nd AMF send that the connection for characterizing between the UE and the 2nd AMF terminates to the first AMF the
Two notification messages；
First AMF sends the second confirmation message for being directed to the second notification message to the 2nd AMF.
10. the method as described in claim 1, which is characterized in that in the first AMF in the 2nd AMF and the first session
After the control plane message for forwarding the UE between management function SMF, the method also includes:
In a preset time period, if the first AMF determines that the UE is not returned to the first AMF, the first AMF
Notify that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the context of the UE.
11. a kind of managing device of registration request is applied to mobile network, it is characterised in that:
Described device includes the first access control and mobile management function to ps domain AMF, the second access control and mobile management function to ps domain
AMF and the first conversation management functional SMF；
The UE is redirected to described by the first AMF, the first login request message for being sent according to user terminal UE
2nd AMF；
First AMF is also used to forward the control plane message of the UE between the 2nd AMF and the first SMF.
12. device as claimed in claim 11, which is characterized in that after the UE is redirected to the 2nd AMF:
2nd AMF, for when receiving PDU session information and session management SM request message that the UE is sent and described
The corresponding PDU session of PDU session information is established before UE is connected to the 2nd AMF, by the PDU session information and the SM
Request message is sent to the first AMF；First AMF, for the PDU session information to be transmitted to the first SMF；
Or
First AMF, if the control plane message for the UE sent for receiving the first SMF, is used for institute
State the control plane message that the 2nd AMF forwarding is directed to the UE.
13. device as claimed in claim 12, which is characterized in that the 2nd AMF is specifically used for:
When PDU session information, session management SM request message and the first prompt information for receiving the UE transmission, based on described
The PDU session information and the SM request message are sent to the first AMF by the first prompt information, wherein described first
Prompt information for characterizing the corresponding PDU session of the PDU session information is established before UE is connected to the 2nd AMF.
14. device as claimed in claim 12, which is characterized in that the first AMF sent according to user terminal UE first
The first PDU session in the redirection message that login request message is sent to the 2nd AMF including the established UE is believed
Breath, the 2nd AMF are specifically used for:
When the 2nd AMF receives the 2nd PDU session information and session management SM request message and the 2nd PDU meeting
Information is talked about in the first PDU session information, the 2nd PDU session information and the SM request message are sent to described
First AMF.
15. device as claimed in claim 11, it is characterised in that:
First AMF, the first login request message for being sent according to user terminal UE are reset to the 2nd AMF transmission
To message, wherein include interim request prompt information in first login request message, include institute in the redirection message
State interim request prompting message；
First AMF, for the UE to be redirected to the 2nd AMF.
16. device as claimed in claim 15, it is characterised in that:
The first AMF forwarded between the 2nd AMF and the first conversation management functional SMF for the UE message it
Afterwards, if the interim request that the UE is directed to the 2nd AMF terminates, the UE returns to the first AMF.
17. device as claimed in claim 16, which is characterized in that the UE returns to the first AMF, specifically includes:
First AMF, the second login request message sent for receiving the UE；
First AMF, for sending the first notification message to the 2nd AMF；
2nd AMF, for sending the first confirmation message for being directed to the first notification message to the first AMF；
First AMF, for sending the registration received message for being directed to second login request message to the UE.
18. device as claimed in claim 17, it is characterised in that:
After the 2nd AMF sends the first confirmation message for the first notification message to the first AMF, described second
AMF, for notifying the 2nd SMF to discharge the PDU session of the established UE and/or deleting the context of the UE.
19. device as claimed in claim 16, which is characterized in that the UE returns to the first AMF, specifically includes:
2nd AMF, for sending to the first AMF for characterizing the connection knot between the UE and the 2nd AMF
The second notification message of beam；
First AMF, for sending the second confirmation message for being directed to the second notification message to the 2nd AMF.
20. device as claimed in claim 11, it is characterised in that:
The control plane message of the UE is forwarded between the 2nd AMF and the first conversation management functional SMF in the first AMF
Afterwards, in a preset time period, if the first AMF determines that the UE is not returned to the first AMF, the first AMF,
For notifying that the first SMF discharges the PDU session of the established UE and/or the first AMF deletes the UE's
Hereafter.
21. a kind of computer installation, which is characterized in that described device includes processor, and the processor is for executing memory
It is realized when the computer program of middle storage such as the step of any one of claim 1-10 the method.
22. a kind of computer readable storage medium, is stored thereon with computer program, it is characterised in that: the computer program
It is realized when being executed by processor such as the step of any one of claim 1-10 the method.
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| CN113796055A (en) * | 2019-05-03 | 2021-12-14 | 联想（新加坡）私人有限公司 | Method and apparatus for determining validity |
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| CN111726808A (en) * | 2019-03-21 | 2020-09-29 | 华为技术有限公司 | Communication method and device |
| CN111769964A (en) * | 2019-04-01 | 2020-10-13 | 华为技术有限公司 | Communication method and device |
| CN113796055B (en) * | 2019-05-03 | 2024-06-11 | 联想（新加坡）私人有限公司 | Method and device for determining validity |
| CN113796055A (en) * | 2019-05-03 | 2021-12-14 | 联想（新加坡）私人有限公司 | Method and apparatus for determining validity |
| CN114845292A (en) * | 2019-05-13 | 2022-08-02 | 三星电子株式会社 | Access and mobility management function, AMF, in a communication system and method therefor |
| WO2021030946A1 (en) * | 2019-08-16 | 2021-02-25 | Zte Corporation | A method of registration with access and mobility management function re-allocation |
| CN112449402A (en) * | 2019-09-05 | 2021-03-05 | 维沃移动通信有限公司 | Network attachment method, gateway and user equipment |
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| WO2021057456A1 (en) * | 2019-09-29 | 2021-04-01 | 华为技术有限公司 | Method and device for use in registration |
| WO2021098073A1 (en) * | 2020-02-26 | 2021-05-27 | Zte Corporation | Registration with accessibility and mobility management function re-allocation |
| WO2022233030A1 (en) * | 2021-05-07 | 2022-11-10 | Zte Corporation | A method for network slice admission control |
| US11800346B2 (en) | 2021-06-25 | 2023-10-24 | Cisco Technology, Inc. | Dual access and mobility management function support for supporting optimized 5G core deployments |
| WO2023051374A1 (en) * | 2021-09-28 | 2023-04-06 | 维沃移动通信有限公司 | Information control method and apparatus, network function and readable storage medium |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210531 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |