CN109429364A - The method and apparatus for establishing session - Google Patents
The method and apparatus for establishing session Download PDFInfo
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- CN109429364A CN109429364A CN201710533748.1A CN201710533748A CN109429364A CN 109429364 A CN109429364 A CN 109429364A CN 201710533748 A CN201710533748 A CN 201710533748A CN 109429364 A CN109429364 A CN 109429364A
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- H—ELECTRICITY
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
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Abstract
This application discloses a kind of method and apparatus for establishing session, this method comprises: access net AN receives first downstream data from user plane functions UPF, which includes the first user equipment (UE) network protocol IP address and the first tunnel identification information；The AN sends first message to access and mobile management function to ps domain AMF, which includes the first UE IP address and first tunnel identification information；The AN receives second message from the AMF, which includes the context for establishing the first session, which is session corresponding with the first UE IP address and first tunnel identification information.According to the method provided by the present application for establishing session, the first session corresponding with the first UE IP address and the first tunnel identification information can establish.
Description
Technical field
This application involves the method and apparatus that session is established in the communications field more particularly to wireless communication field.
Background technique
User's surface model refers to access net (access network, AN) and user plane functions (user plane
Function, UPF) between tunnel model, wherein tunnel refers to the communication path between AN and UPF.
Aggretion type user's surface model is one of user's surface model.For aggretion type user's surface model, a tunnel pair
Multiple sessions are answered, multiple session may belong to a terminal device, also may belong to multiple terminal devices.Wherein, session is used
In providing protocol Data Unit for user equipment (user equipment, UE) and data network (data network, DN)
(protocol data unit, PDU) connection service.When tunnel, several corresponding sessions are deactivated, AN is received newly
Downlink data after without normal direction UE send the new downlink data, abandon the new downlink data so as to cause AN, reduce user
Experience.
Summary of the invention
In view of this, can solve above-mentioned aggretion type user this application provides a kind of method and apparatus for establishing session
AN abandons the problem of downlink data in surface model.
In a first aspect, providing a kind of method for establishing session, comprising: AN is under UPF reception first downstream data, first
Row data include the first UE network protocol address (internet protocol, IP) and the first tunnel identification information；AN is to access
First message is sent with mobile management function to ps domain (access and mobility management function, AMF), it should
First message includes the first UE IP address and the first tunnel identification information；AN receives second message, the second message packet from AMF
The context for establishing the first session is included, the first session is corresponding with the first UE IP address and the first tunnel identification information
Session.
According to the method provided by the present application for establishing session, AN is by sending the first UE IP address and the first tunnel to AMF
Identification information, and receive AMF transmission for restoring the context of the first session, so as to restore between UE and AN with first
UE IP address and the corresponding wireless connection of the first tunnel identification information avoid AN from abandoning first downstream data.
Optionally, the method also includes: AN receives third message from AMF, which includes the mark of the first session
Know, the first corresponding relationship between the first UE IP address and the first tunnel identification information, third message further includes the second session
The second corresponding relationship between mark, the 2nd UE IP address and the second tunnel identification information.
When AN receives the corresponding downlink data of the second session, so that it may determine downlink according to second corresponding relationship
The corresponding session of data, i.e. the second session, to pass through AMF from conversation management functional (session management
Function, SMF) get the corresponding session context of the second session, so as to restore between UE and AN with the 2nd UE IP
Address and the corresponding wireless connection of the second tunnel identification information avoid AN from abandoning second downstream data.
Optionally, the method also includes: AN receives second downstream data from UPF, and second downstream data includes the 2nd UE
IP address and the second tunnel identification information；AN sends the 4th message to AMF, and the 4th message includes the mark of the second session；AN
The 5th message is received from AMF, the 5th message includes the context for establishing the second session.
The 2nd UE IP address that can include according to second downstream data when AN receives second downstream data and
Two tunnel identification informations determine the mark of the second session, and the mark of the second session is sent to AMF, thus, AMF no longer needs to basis
2nd UE IP address and the second tunnel identification information determine the mark of the second session, will can directly be used to restore the second session
Context be sent to AN, improve the response speed of AMF, reduce the burden of AMF.
Optionally, the method also includes: if the first UE is in Idle state, AN sends paging message to the first UE, should
First UE is UE corresponding with the first UE IP address and the first tunnel identification information.
The method that AN can restore the first session accordingly according to the current concrete condition selection of the first UE, such as when first
When UE is in Idle state, the method that can take above-mentioned paging restores the first session, so as to avoid AN from abandoning the first downlink
Data；When the first UE is in connected state, AN directly can obtain the first session pair to the corresponding SMF of the first session by AMF
The session context answered avoids AN from abandoning first to restore to eat dishes without rice or wine to connect between the corresponding AN and the first UE of the first session
Downlink data bring user experience reduces.
Optionally, the first tunnel identification information is in the tunnel information of Tunnel Identifier, the tunnel information of the side AN and the side UPF
It is at least one.
Optionally, the method also includes: AN sends first downstream data to the first UE by the first session, and the first UE is
UE corresponding with the first UE IP address and the first tunnel identification information.
Second aspect provides a kind of method for establishing session, comprising: AMF receives first message, the first message from AN
Including the first UE IP address and the first tunnel identification information；AMF sends second message to AN, which includes for building
The context of vertical first session, first session are session corresponding with the first UE IP address and the first tunnel identification information.
According to the method provided by the present application for establishing session, AMF receives the first UE IP address and the first Tunnel Identifier from AN
Information, and sending to AN for restoring the context of the first session, so as to restore between UE and AN with the first UE IP address
Wireless connection corresponding with the first tunnel identification information avoids AN from abandoning first downstream data.
Optionally, the method also includes: if the first UE is in Idle state, AMF sends paging message to the first UE, should
First UE is UE corresponding with the first UE IP address and the first tunnel identification information.
AMF can be current according to the first UE the corresponding method for restoring the first session of concrete condition selection, such as when the
When one UE is in Idle state, the method that can take above-mentioned paging restores the first session, so as to avoid AN from abandoning under first
Row data；When the first UE is in connected state, it is corresponding that AMF directly can obtain the first session to the corresponding SMF of the first session
Session context hair, and AN is given, so that AN restores to eat dishes without rice or wine to connect between the corresponding AN and the first UE of the first session, keep away
Exempt from AN and abandons the reduction of first downstream data bring user experience.
Optionally, the method also includes: AMF sends third message to AN, third message include the first session mark,
The first corresponding relationship between first UE IP address and the first tunnel identification information, the third message further include the second session
The second corresponding relationship between mark, the 2nd UE IP address and the second tunnel identification information.
The 2nd UE IP address that can include according to second downstream data when AN receives second downstream data and
Two tunnel identification informations determine the mark of the second session, and the mark of the second session is sent to AMF, thus, AMF no longer needs to basis
2nd UE IP address and the second tunnel identification information determine the mark of the second session, will can directly be used to restore the second session
Context be sent to AN, improve the response speed of AMF, reduce the burden of AMF.
Optionally, the method also includes: AMF receives the 4th message from AN, and the 4th message includes the mark of the second session；
AMF sends the 5th message to AN, and the 5th message includes the context for establishing the second session.
Optionally, the method also includes: AMF obtains the first UE IP address, the first tunnel identification information and the from SMF
The first corresponding relationship between the mark of one session.
Optionally, first tunnel identification information is the tunnel information of Tunnel Identifier, the tunnel information of the side AN and the side UPF
At least one of.
The third aspect, this application provides a kind of device for establishing session, which may be implemented above-mentioned first aspect institute
Function performed by AN in the method being related to, the function can also be executed corresponding by hardware realization by hardware
Software realization.The hardware or software include the corresponding unit of one or more above-mentioned functions or module.
It include processor and communication interface in the structure of the device in a kind of possible design, which is configured
To support the device to execute corresponding function in the above method.The communication interface is for supporting between the device and other devices
Communication.The device can also include memory, which saves the necessary program of the device and refer to for coupling with processor
It enables and data is for realizing above-mentioned function.
Fourth aspect, this application provides a kind of device for transmitting data, which be may be implemented involved by above-mentioned aspect
Method in function performed by AMF, the function can also execute corresponding software by hardware realization by hardware
It realizes.The hardware or software include the corresponding unit of one or more above-mentioned functions or module.
It include processor and communication interface in the structure of the device in a kind of possible design, which is configured
To support the device to execute corresponding function in the above method.The communication interface is for supporting between the device and other devices
Communication.The device can also include memory, which saves the necessary program of the device and refer to for coupling with processor
It enables and data is for realizing above-mentioned function.
5th aspect, this application provides a kind of computer storage mediums, for being stored as computer used in above-mentioned AN
Software instruction, it includes for executing program designed by above-mentioned first aspect.
6th aspect, this application provides a kind of computer storage mediums, for being stored as computer used in above-mentioned AMF
Software instruction, it includes for executing program designed by above-mentioned second aspect.
7th aspect, this application provides a kind of communication chips, wherein being stored with instruction, when it runs on AN, make
Obtain the method that the communication chip control AN executes above-mentioned first aspect.
Eighth aspect, this application provides a kind of communication chips, wherein being stored with instruction, when it runs on AMF, make
The method for obtaining second aspect in the communication chip control AMF execution.
9th aspect, this application provides a kind of computer program product, the computer program product includes: computer
Program code, when the computer program code is run by the communication unit of communication device and processing unit, so that communication dress
It sets and executes method involved in first aspect.
Tenth aspect, this application provides a kind of computer program product, the computer program product includes: computer
Program code, when the computer program code is run by the communication unit of communication device and processing unit, so that communication dress
It sets and executes method involved in second aspect.
Detailed description of the invention
Fig. 1 is the schematic architectural diagram for being applicable in the communication system of the application；
Fig. 2 is a kind of schematic flow chart of method for establishing session provided by the present application；
Fig. 3 is the schematic flow chart for the method that another kind provided by the present application establishes session；
Fig. 4 be it is provided by the present application another establish the schematic flow chart of the method for session；
Fig. 5 is a kind of schematic flow chart of method for obtaining the first corresponding relationship provided by the present application；
Fig. 6 is a kind of information exchange figure for establishing session provided by the present application；
Fig. 7 is the information exchange figure that another kind provided by the present application establishes session；
Fig. 8 be it is provided by the present application another establish the information exchange figure of session；
Fig. 9 be it is provided by the present application another establish the information exchange figure of session；
Figure 10 be it is provided by the present application another establish the information exchange figure of session；
Figure 11 be it is provided by the present application another establish the information exchange figure of session；
Figure 12 is the structural schematic diagram of possible AN provided by the present application a kind of；
Figure 13 is the structural schematic diagram of alternatively possible AN provided by the present application；
Figure 14 is the structural schematic diagram of possible AMF provided by the present application a kind of；
Figure 15 is the structural schematic diagram of alternatively possible AMF provided by the present application.
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the application is described.
Fig. 1 shows a kind of communication system for being applicable in the application.The communication system include UE110, UE120, AN130,
UPF140, AMF150, SMF160 and DN170.UE110 and UE120 passes through wireless network respectively and is communicated with AN130,
(it can be connected shown in Fig. 1 by corresponding core network interface between AN130, UPF140, AMF150, SMF160 and DN170
Line) it is communicated.Above-mentioned each network element is entity device.In this application, AN is alternatively referred to as AN equipment, and SMF is alternatively referred to as SMF
Equipment, SMF network element or SMF entity, AMF are alternatively referred to as AMF equipment, AMF network element or AMF entity.
Communication connection between AN130 and UPF140 can be described as tunnel.One tunnel can carry one or more meeting
Words.Only carry user's surface model of the tunnel respective session granularity of a session.The tunnel for carrying multiple sessions corresponds to aggretion type
User's surface model.Multiple session may belong to the same UE, also may belong to different UE.Optionally, a UE can be same
When data network accessed by the tunnel of the tunnel of session granularity and polymerism.
As shown in Figure 1, tunnel 1 carries three sessions, which is respectively session 1, session 2 and session 3, wherein
Session 1 and session 2 belong to UE110, and session 3 belongs to UE120.Since tunnel 1 carries multiple sessions, AN130 and UPF140
Between user's surface model be known as aggretion type user's surface model.
In this application, UE can be described as terminal device, access terminal, subscriber unit, subscriber station, movement station, mobile station, remote
Side station, remote terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent or user apparatus.UE can be
Cellular phone, the handheld device with wireless communication function calculate equipment or are connected to other processing of radio modem
User equipment in equipment, mobile unit, wearable device and the 5th generation (5th-generation, 5G) communication system.
AN can be the base station (base in CDMA (code division multiple access, CDMA) system
Transceiver station, BTS), it is also possible to wideband code division multiple access (wideband code division multiple
Access, WCDMA) base station (node B, NB) in system, can also be long term evolution (long term evolution,
LTE) the evolved base station in system (evolutional node B, eNB), can also be the base station in 5G communication system
(gNB), above-mentioned base station is merely illustrative of, AN can also for relay station, access point, mobile unit, wearable device and its
The equipment of its type.
AMF can be responsible for attachment, mobile management, tracing section updating process of UE etc..
SMF entity can be responsible for the session management of UE, selection, the gravity treatment of UPF, IP address distribution, service quality (quality
Of service, QoS) and session foundation, modification and release.Wherein, in 5G system, SMF entity and AMF entity it
Between by N11 interface be connected.It is connected between SMF entity and UPF by N4 interface.Pass through N2 interface phase between AMF entity and AN
Even.In the following description, N11 message can be described as by the message that N11 interface transmits.It can be described as by the message that N4 interface transmits
N4 message.It can be described as N2 message by the message that N2 interface transmits.In addition, these message can also have under different scenes
Other titles, the application do not limit herein.
UPF is connected to DN, for realizing the data transmission of business in the coverage of the UPF.
The above-mentioned communication system for being applicable in the application is merely illustrative of, and the communication system for being applicable in the application is without being limited thereto, example
Such as, the quantity of AN, AMF, SMF, UPF, DN and UE for including in communication system can also be other quantity.AN,AMF,SMF,
DN and UE there may also be other titles, in this application, is not meant to using AN, AMF, SMF, UPF, DN and UE to this Shen
Please protection scope restriction.
The application in order to facilitate understanding, first to this application involves concept be described in detail.
AMF is mainly responsible for the mobile management of UE, such as location updating, registered network, switching.Scene shown in Fig. 1
Under, after establishing session between UE and DN, the contextual information of the UE saved on AMF150 specifically includes that UE mark, session
Mark, SMF mark.
SMF is mainly responsible for the session management of UE, and such as session establishment, modification, release, concrete function for example user is with distributing IP
Location, selection provide UPF of message forwarding capability etc..Under scene shown in Fig. 1, after establishing session between UE and DN,
The contextual information of the session saved on SMF160 specifically includes that the corresponding service quality of session identification, session (quality of
Service, QoS) parameter.For example, qos parameter includes: distribution and reservation priority (allocation and retention
Priority, ARP), aggregate maximum bit rate (the per session aggregate maximum bit of session granularity
Rate, session-AMBR), the aggregate maximum bit rate of UE granularity (per UE aggregate maximum bit rate,
UE-AMBR).Optionally, a session may include multiple Business Streams, and each Business Stream may have different qos parameters.
AN, which is mainly responsible for, provides the equipment of wireless access for UE.Under scene shown in Fig. 1, when foundation meeting between UE and DN
After words, the context saved on AN130 mainly includes corresponding with the session: the wireless connection information (example between UE and AN
As Data Radio Bearer (data radio bearer, DRB) is identified), tunnel link information between AN and UP (such as the side UPF
Tunnel Identifier), the IP address of UE, qos parameter.
Aggretion type user's surface model may include multiple sessions.In order to be compared with user's surface model of session granularity,
Before introducing the method provided by the present application for establishing session, Fig. 2 is first combined to introduce the manager of user's surface model of session granularity
Method.
When a tunnel only carries a session, which is known as user's surface model of session granularity.For
User's surface model of session granularity, when session is deactivated, (such as UE enters Idle state or UE is in connected state but the meeting of UE
When words are deactivated), the tunnel between AN and UPF disconnects.When UPF receives the downlink data of the session, communication system is needed
(that is, recovery) corresponding session of the downlink data is re-established, the process for restoring session is as shown in Figure 2.Recovery shown in Fig. 2
The method of session the following steps are included:
After S201, UPF receive downlink data, data notification (data notification) is sent to SMF, with notice
SMF has downlink data to need to send.
After S202, SMF receive data notification, N11 message is sent to AMF, which carries session identification, QoS ginseng
Number, the side UPF tunnel information.For example, the side UPF tunnel information is the IP address and/or the side UPF Tunnel End Point Identifier of UPF.
S203, AMF preserve the state of current UE, and AMF is according to the state of UE, it is determined whether executes S204.When UE is in
When Idle state, then AMF sends paging (paging) message to AN, and AN triggers paging process according to the paging message and executes step
S204.When UE is in connected state, AMF does not need paging UE, directly execution S205.
S204, UE receive paging message, and UE sends service request to AMF by AN.The service request is paging message
Response message.
S205, AMF to AN send context establish request, the context establish request carry S202 in session identification,
Qos parameter and the side UPF tunnel information.
S206, AN establish request according to the context received, trigger the radio connection building process between UE and AN.
S207, AN establish response to the context that AMF sends UE, which establishes response and carry the side AN tunnel information.
For example, the side the AN tunnel information is AN IP address and/or the side AN Tunnel End Point Identifier.
S208, AMF send N11 message to SMF, which carries above-mentioned session identification and the side AN tunnel information.
S209, SMF initiate user plane path to UPF and modify process.For example, SMF is sent to UPF carries above-mentioned session identification
Request is modified with the user plane path of the side AN tunnel information；UPF returns to user plane path modification response.
At this point, the session between UE and DN is successfully recovered, UPF by user face tunnel between AN and UPF and UE with
DRB between AN sends the corresponding downlink data of session to UE.
In the application, the interface between AMF and SMF is known as N11 interface, therefore interacting message between the two can be simple
Be known as N11 message.For specific message name, the present invention is without limitation.
For aggretion type user's surface model, such as user's surface model shown in FIG. 1, some session, which is deactivated, be will not influence
Tunnel connection between AN and UP.Such as, session 1 is deactivated, but tunnel 1 not will disconnect.When to receive session 1 corresponding by UPF
When downlink data, which can be sent directly to AN by the user face tunnel between UPF and AN by UPF.Since AN exists
Session 1 has emptied all information of session 1 when being deactivated, including the DRB information between AN and UE, therefore, when AN is connected to this
It when downlink data, can not determine which DRB the downlink data corresponds to, also just the downlink data can not be sent to UE, to lead
It causes AN to abandon the downlink data, reduces user experience.
In the following, Fig. 1 detailed analysis above problem Producing reason will be combined.
A session for UE, when connecting between UE and AN, AN and UP there are user face, i.e., the data of UE can pass
When defeated, which is active (activation).It connects when user face is not present between UE and AN, but is saved on SMF
The context of session, such as UE IP address, session identification when, then the session is in deactivation status (deactivation).
The information of the session saved for being in the session of deactivation status, on AN is by whole deletions.
For example, the contextual information saved on AN130 is as shown in table 1 below:
| Session 1 | Wireless connection information 1 | Tunnel link information 1 | UE IP1 | Qos parameter 1 |
| Session 1 | Wireless connection information 2 | Tunnel link information 1 | UE IP1 | Qos parameter 2 |
| Session 2 | Wireless connection information 3 | Tunnel link information 1 | UE IP2 | Qos parameter 1 |
| Session 3 | Wireless connection information 4 | Tunnel link information 1 | UE IP3 | Qos parameter 1 |
Table 1
By taking session 1 as an example.Before session 1 is deactivated, if downlink data passes through the corresponding tunnel 1 of tunnel link information 1
AN is reached, and the downlink data carries qos parameter 1, then according to table 1, AN can tunnel link information 1 in contextual information
With qos parameter 1, determine that the downlink data is the downlink data of session 1, it will be under this by the corresponding DRB1 of wireless connection information 1
Row data are sent to UE110.
Under scene shown in Fig. 1, when session 1 is deactivated, the relevant information of the upper session 1 of AN130 is all deleted,
The contextual information that AN130 is saved will become as shown in table 2:
| Session 2 | Wireless connection information 3 | Tunnel link information 1 | UE IP2 | Qos parameter 1 |
| Session 3 | Wireless connection information 4 | Tunnel link information 1 | UE IP3 | Qos parameter 1 |
Table 2
After session 1 is deactivated, for above situation, when the downlink data of session 1 reaches, UPF140 is by lower line number
AN130 is sent to according to by tunnel 1, but due to the not no corresponding wireless connection information of the downlink data of AN130, AN130
Downlink data can not be sent to UE.So, which will be dropped, and user experience is caused to decline.
The application is in view of the above-mentioned problems, propose a solution: saving UE IP address, tunnel identification information by AMF
Between (such as tunnel information of Tunnel Identifier, the tunnel information of the side AN and the side UPF) and UE mark, session identification and SMF mark
Association.For example, under scene shown in Fig. 1, the context of the UE saved on AMF150 are as follows:
| UE110 | Session 1 | SMF160 | UE IP1 | Tunnel identification information 1 |
| UE110 | Session 2 | SMF160 | UE IP2 | Tunnel identification information 1 |
| UE120 | Session 3 | SMF160 | UE IP3 | Tunnel identification information 1 |
According to the thinking of above-mentioned solution, Fig. 3 shows a kind of showing for method 300 for establishing session provided by the present application
Meaning property flow chart.This method 300 includes:
S310, AN receive first downstream data from UPF, and the first downstream data includes the first UE IP address and first
Tunnel identification information.
S320, the AN send first message to AMF, and the first message includes the first UE IP address and described
First tunnel identification information.
S330, the AN receive second message from the AMF, and the second message includes for establishing the first session
Hereafter, first session is session corresponding with the first UE IP address and first tunnel identification information.The AN
According to the second message received, restore the wireless connection between UE and AN, so that AN can send out first downstream data
Give UE.
In S310, first downstream data is any one downlink data that UPF is sent, and AN receives first downstream data
Afterwards, the first UE IP address and the first tunnel identification information are therefrom parsed.
For example, the first tunnel identification information is the mark (that is, Tunnel Identifier) for transmitting the tunnel of the first downstream data, or
Person, the first tunnel identification information is tunnel information of the tunnel in the side AN for transmitting the first downstream data, alternatively, the first tunnel mark
Knowing information is tunnel information of the tunnel in the side UPF for transmitting the first downstream data, alternatively, the first tunnel identification information includes tunnel
At least two in road mark, the tunnel information of the side AN and the tunnel information of the side UPF.For example, the side AN tunnel information includes AN IP
Address and/or the side AN Tunnel End Point Identifier.The side UP tunnel information includes UP IP address and/or the side UP Tunnel End Point Identifier.It is above-mentioned
Example is merely illustrative of, and the first tunnel identification information is used for the tunnel of identification transmission first downstream data, and the application is to first
The particular content of tunnel identification information is without limitation.
After AN receives the first downstream data, due to believing on AN without the corresponding wireless connection of the first downstream data
Breath, therefore the first downstream data can not be sent to UE.According to methods described herein, AN sends first message to AMF,
First message includes the first UE IP address and the first tunnel identification information, in order to which AMF is determining with the first UE IP address and the
The corresponding session of one tunnel identification information.In addition, UE IP address can be also simply referred to as UE IP.
First message can be notification message, and notification message is for having received AN including the first UE IP address and first
The case where downlink data of tunnel identification information, notifies to AMF.Alternatively, first message is also possible to request message, request message
Information for request session corresponding with the first UE IP address and the first tunnel identification information.AMF receives first and disappears
It can be by third message by the first session (that is, the first UE IP address and the corresponding session of the first tunnel identification information) after breath
Information be sent to AN, the information of some or all of the first UE (that is, UE belonging to the first session) session can also be sent
To AN.
For example, the information of some or all of UE belonging to the first session session includes: UE IP address, Tunnel Identifier letter
Corresponding relationship between breath and session identification three.For example, the information of the session of UE includes that the first corresponding relationship and second are corresponding
Relationship, the first corresponding relationship include between the first UE IP address, the first tunnel identification information and the mark three of the first session
First corresponding relationship；Second corresponding relationship includes the 2nd UE IP address, the second tunnel identification information and the mark three of the second session
The second corresponding relationship between person.Wherein, the first session and the second session can be whole sessions of UE, it is also possible to only UE
Partial session.It should be noted is that above-mentioned first corresponding relationship or the second corresponding relationship can also include: UE mark, SMF
Corresponding relationship between mark and above-mentioned parameter.Wherein, SMF mark is for identifying SMF.
In addition, receiving second message from AMF after AN sends first message to AMF.Second message is to carry for establishing the
The message of the context of one session.The application is not construed as limiting the specific name of first message and second message.Pass through this Shen
Method please can get the context letter of the first session belonging to the downlink data when AN receives downlink data from AMF
Breath avoids AN because corresponding without the downlink data to restore wireless connection of first session between UE and AN
The phenomenon that being wirelessly connected and abandon the downlink data, reducing user experience.
Hereinafter, being retouched so that first message is notification message and request message as an example to the technical solution of the application respectively
It states.
Situation 1,
When first message is notification message, AMF is according to the determination of the first corresponding relationship and the first UE IP address and the first tunnel
The information of corresponding first session of road identification information.For example, the information of the first session can be the mark of the first session.For example,
AMF can save above-mentioned first corresponding relationship in table form, and the information of the first session is determined by way of enquiry form.
In addition, AMF can also determine the information of the first session otherwise, the application to the concrete form of the first corresponding relationship with
And AMF determines that the concrete mode of the first session is not construed as limiting.
In addition, the first corresponding relationship may also include UE belonging to the first session (that is, the first UE) and related to the first session
SMF.AMF can be corresponding according to the first UE IP address carried in first message and the first tunnel identification information and first
Relationship determines UE belonging to the first session (that is, the first UE), and the recovery process of the first session is carried out according to the state of the first UE.
(1) when the first UE is in idle (idle) state, AMF initiates paging process, pages the first UE, specific paging flow
Journey can refer to the process for paging UE in the prior art, and details are not described herein.Above-mentioned Idle state is alternatively referred to as the connection management free time
(connection management idle, CM-IDLE) state.
First UE is paged rear, and AMF sends session context to the first SMF SMF of the first session (that is, management) and obtains
Request, the session context acquisition request carry the mark of the first session.Then, AMF receives session context from the first SMF and obtains
Response is taken, which obtains context needed for the first session is established in response carrying, such as the QoS ginseng of the first session
Number.AMF sends session context to AN and establishes request, which establishes to request to carry and establish needed for the first session up and down
Text.AN eats dishes without rice or wine to connect according to the context with the first UE foundation, and sends session context to AMF and establish response.
(2) when the first UE be in connection (connected) state when, AMF can directly to the corresponding SMF of the first session (that is,
First SMF) session context acquisition request is sent, subsequent step is identical as the processing step of AMF in situation (1), herein no longer
It repeats.Above-mentioned connected state is alternatively referred to as connection management connection (connection management connected, CM-
CONNECTED)。
It should be noted is that after AMF receives notification message, it can also be by the corresponding relationship of the first UE of preservation
(including but not limited to the first corresponding relationship) is sent to AN.In this way, when AN receives the corresponding downlink of other sessions of the first UE
When data (for example, second downstream data), second downstream data corresponding second directly can be determined according to above-mentioned corresponding relationship
Session so that AN obtains the context of the second session to the corresponding SMF of the second session by AMF, and then more rapidly restores
Wireless connection between second session corresponding UE and AN, so that second downstream data is sent to UE by AN.
Situation 2,
When first message is request message, AMF is according to the determination of the first corresponding relationship and the first UE IP address and the first tunnel
Identification information corresponding session in road determines the information of the first session.For example, the information of the first session can be the mark of the first session
Know.For example, AMF can save above-mentioned first corresponding relationship in table form, and first is determined by way of enquiry form
The information of session and the first UE.In addition, AMF can also determine the information of the first session otherwise, the application is to first
The concrete form and AMF of corresponding relationship determine that the concrete mode of the first session is not construed as limiting.
Subsequent AMF is to AN transmission third message, the information of some or all of the first UE of third message carrying is corresponded to session.
For example, third message can carry the first corresponding relationship and the second corresponding relationship.First corresponding relationship is including the first UE IP
The first corresponding relationship between location, the first tunnel identification information and the mark three of the first session；Second corresponding relationship includes the
The second corresponding relationship between two UE IP address, the second tunnel identification information and the mark three of the second session.Wherein, first
Corresponding relationship and the second corresponding relationship can be the information of whole sessions of the first UE (for example, the first UE only includes the first session
With the second session), alternatively, the first corresponding relationship and the second corresponding relationship are only the information of the partial session of the first UE (for example,
One UE includes at least 3 sessions).In this way, when AN receives the corresponding downlink data of other sessions of the first UE (for example, second
Downlink data) when, corresponding second session of second downstream data directly can be determined according to above-mentioned corresponding relationship, so that AN passes through
AMF obtains the context of the second session to the corresponding SMF of the second session, and then more rapidly restores the corresponding UE of the second session
Wireless connection between AN, so that second downstream data is sent to UE by AN.
In addition, AMF also saves the corresponding relationship of UE mark, SMF mark and session identification, therefore, third message can be carried
Corresponding relationship between UE IP, Tunnel Identifier, session identification, UE mark and SMF mark.
AN judges that the first UE whether there is the session being active according to the corresponding relationship in third message, thus
Judge the state of UE.For the session being active, AN preserves the corresponding link information of eating dishes without rice or wine of the session.Wherein, meeting
The link information of eating dishes without rice or wine of words refers to the wireless connection between UE and AN.Therefore, when in the session information of AN the first UE saved
Do not have session eat dishes without rice or wine link information when, AN judges that UE is in idle condition.For example, being active if the first UE exists
Session, then AN judges that the first UE is in connected state；If the session being active is not present in the first UE, AN judges UE
In Idle state.Then, AN conversates the process of recovery according to the state of the first UE.It is as described below:
(3) when the first UE is in Idle state, AN initiates paging process, pages the first UE, and specific process of paging can join
The process for paging UE in the prior art is examined, details are not described herein.
First UE is paged rear, and AN sends session context acquisition request to the first SMF by AMF, above and below the session
Literary acquisition request carries the mark of the first session；Then, AN receives session context from the first SMF by AMF and obtains response, should
Session context obtains context needed for the first session is established in response carrying, such as the qos parameter of the first session；AN is according to this
Context eats dishes without rice or wine to connect with the first UE foundation.
(4) when the first UE is in connected state, AN does not need paging UE, according to the first corresponding relationship of preservation, determines the
The corresponding session of one downlink data sends session context acquisition request to corresponding first SMF of the first session by AMF, after
Continuous step is identical as the processing step of AN in situation (3), and details are not described herein.
After first session restores, AN can send first downstream data to the first UE.
It should be pointed out that in this application, " when ... ", " if " and " if " refer both to the UE under certain objective circumstances
Or AN can make corresponding processing, be not limiting time, and UE or AN is not required to have to the judgement when realizing yet
Movement, does not mean that there are other restrictions yet.
Optionally, when first message is notification message, third message can be the response message of the notification message；When
When one message is request message, third message can be the response message of the request message.When first message is notification message,
AMF can not also send the response message of the notification message.
In addition, the name of the same message may be there are many call, the name of each message is only to illustrate in the application
It is bright, the restriction to the technical solution of the application is understood not to, subject to the name Ying Yiqi practical function of each message.
In conclusion the method 300 provided by the present application for establishing session, AN by AMF send the first UE IP address and
First tunnel identification information, and the context for being used to restore the first session of AMF transmission is received, so as to restore and the first UE
IP address and corresponding first session of the first tunnel identification information.
Optionally, method 300 further include:
S340, the AN from the AMF receive third message, the third message include first session mark,
The first corresponding relationship between the first UE IP address and first tunnel identification information, the third message further include
The second corresponding relationship between the mark of second session, the 2nd UE IP address and the second tunnel identification information.
In second corresponding relationship, the second session is in session different from the first session in the corresponding whole sessions of the first UE
Any one session.
Optionally, method 300 further include:
S350, the AN receive second downstream data from the UPF, and the second downstream data includes the 2nd UE
IP address and second tunnel identification information.
S360, the AN are according to the session information of the first UE of preservation and the 2nd UE IP address and the second Tunnel Identifier
Information determines the corresponding session of second downstream data (that is, second session) that Xiang Suoshu AMF sends the 4th message, and the described 4th disappears
Breath includes the mark of second session.The corresponding relationship that the AMF is identified according to session identification and SMF, to the second session mark
Know corresponding SMF and send context acquisition request, to obtain the corresponding context of the second session.
Optionally, when the AN corresponding relationship saved includes SMF mark, the AN is by AMF directly to the second session pair
The SMF answered sends session context acquisition request, to obtain the corresponding context of the second session.
AMF receives the session context that SMF is returned and obtains response, which obtains response and carry the second session
Context, such as corresponding qos parameter of the second session.
S370, the AN receive the 5th message from the AMF, and the 5th message includes for establishing second session
Context.
Second downstream data is the session different from first downstream data corresponding UE, after AN receives second downstream data,
It include that the 2nd UE IP address and the second tunnel identification information determine the first UE, and receive according to from AMF according to second downstream data
To corresponding relationship determine the 2nd UE IP address and the corresponding session of the second tunnel identification information (that is, second session), with laggard
The recovery process of the second session of row.To solve when communication system is using aggretion type user surface model, how session is realized
The session management (that is, session activation) of granularity, for example, when deactivated session has new downlink data to need to transmit, UPF meeting
New downlink data is sent directly to AN, after AN receives new downlink data, according to the session information of the UE of preservation, is determined
The corresponding session of new downlink, so that the corresponding session context of the session is obtained to SMF by AMF, to restore the session
Wireless connection between corresponding UE and AN, allows AN that new downlink data is sent to UE.That is, AN can root
The new downlink data is sent to UE according to the method provided by the present application for establishing session, so as to avoid AN because no normal direction UE is sent
The new downlink data and abandon the new downlink data, improve user experience.
4th message is to carry the message of the mark of the second session, and the 5th message is to carry for re-establishing the second session
Context message, the application is not construed as limiting the name of the 4th message and the 5th message.
Fig. 4 shows a kind of another schematic flow chart of method 400 for establishing session provided by the present application.This method
400 include:
S410, AMF receive first message from AN, and the first message includes the first UE IP address and the first Tunnel Identifier
Information.
S420, the AMF send second message to the AN, and the second message includes for establishing the first session
Hereafter, first session is session corresponding with the first UE IP address and first tunnel identification information.
Those skilled in the art can be understood that: in method 400, AMF and AN can be equal in method 300
AMF and AN, and the movement of AMF and AN is corresponding with the movement of AMF and AN in method 300, in addition, first message, second
Message is also identical as first message, the second message in method 300, for sake of simplicity, details are not described herein.
Therefore, the method 400 provided by the present application for establishing session, AMF receive the first UE IP address and the first tunnel from AN
Identification information, and the context for establishing the first session is sent to AN, so as to establish and the first UE IP address and first
Corresponding first session of tunnel identification information.
Optionally, method 400 further include:
S430, if the first UE is in Idle state, the AMF sends paging message to AN, to page the first UE.It is described
First UE is UE corresponding with the first UE IP address and first tunnel identification information.
Optionally, method 400 further include:
S440, the AMF to the AN send third message, the third message include first session mark,
The first corresponding relationship between the first UE IP address and first tunnel identification information, the third message further include
The second corresponding relationship between the mark of second session, the 2nd UE IP address and the second tunnel identification information.
Third message can only carry the first corresponding relationship, can also carry the first corresponding relationship and the second corresponding relationship,
In second corresponding relationship, the second session is any one in session different from the first session in the corresponding whole sessions of the first UE
A session.
To solve when communication system is using aggretion type user surface model, how realize the session pipe of session granularity
It manages (that is, session activation), for example, UPF can be by new lower line number when deactivated session has new downlink data to need to transmit
According to being sent directly to AN, AN is received after new downlink data according to the session information of the UE of preservation, determines that new downlink is corresponding
Session, so that the corresponding session context of the session is obtained to SMF by AMF, to restore the session corresponding UE and AN
Between wireless connection, allow AN that new downlink data is sent to UE.That is, AN can be provided according to the application
The method for establishing session send the new downlink data to UE, so as to avoid AN because no normal direction UE sends the new lower line number
According to and abandon the new downlink data, improve user experience.
Optionally, method 400 further include:
S450, the AMF receive the 4th message from the AN, and the 4th message includes the mark of second session.
S460, the AMF send the 5th message to the AN, and the 5th message includes for restoring second session
Context.
In method 400, third message, the 4th message and in third message, the 4th message and the 5th message and method 300
Five message are identical, for sake of simplicity, repeating no more.
Optionally, method 400 further include:
S470, the AMF obtain the first UE IP address, first tunnel identification information and described first from SMF
The first corresponding relationship between the mark of session.
Fig. 5 shows the schematic flow chart that a kind of AMF provided by the present application obtains the method for the first corresponding relationship.Example
Such as, AMF obtains the first corresponding relationship during session establishment.This method 500 includes:
S501, UE send session establishment request (session setup request) to AMF by AN, to request to establish
Session.Session establishment request carries session identification (that is, mark of the first session) and data network title (data
Network name, DNN).
S502, AMF be selected as the UE provide session management service SMF, and save session identification identified with SMF it is corresponding
Relationship.
S503, AMF send N11 message to the SMF.The N11 message can be the session management for carrying session establishment request
It requests (session management request, SM request).Session establishment request carries session identification and DNN.
After S504, SMF receive N11 message, judge whether there is user plane path between AN and UPF.When between AN and UPF
When there is no user plane path, user plane path establishment process is initiated.For example, SMF distributes Tunnel Identifier, IP address is distributed for UE,
N4 session establishment request (N4session setup request) is sent to UPF, N4 session establishment request carries session mark
Knowledge, DNN and Tunnel Identifier.Optionally, when being pre-configured with the information of user's surface model of aggretion type on SMF, which is built
Vertical request can also carry the side AN tunnel information.SMF receives the response of N4 session establishment from UPF, and N4 session establishment response carries UP
Side tunnel information and Tunnel Identifier.Wherein, the side AN tunnel information includes AN IP address and/or the side AN Tunnel End Point Identifier.The side UP
Tunnel information includes UP IP address and/or the side UP Tunnel End Point Identifier.
S505, SMF send N11 message to AMF, which carries the first corresponding relationship, that is, the first Tunnel Identifier letter
Breath, the corresponding relationship between the first UE IP address, the mark of the first session.Wherein, the first tunnel identification information is the side UP tunnel
At least one of information, the side AN tunnel information and Tunnel Identifier.The N11 message can also carry other information, for example, QoS
Parameter.
S506, AMF save above-mentioned first corresponding relationship.
At this point, the information saved on AMF includes UE mark, the corresponding SMF mark of the first session, the first Tunnel Identifier letter
Breath, the corresponding relationship between the first UE IP address, the mark of the first session.Wherein, UE mark is used for one terminal of unique identification
User, AMF save the UE mark during UE is registered to data network.
S507, AMF send N2 message to AN, which carries session identification, UE IP and qos parameter, which uses
Radio bearer is established in request AN.
S508, AN initiate radio bearer Establishing process.
S509, AN send N2 message to AMF, and the N2 message is for indicating that radio bearer has built up.
The embodiment that above-mentioned AMF obtains the first corresponding relationship is merely illustrative of, and the application is without being limited thereto, for example, may be used also
The first corresponding relationship is configured in AMF in a manner of through pre-configuration.
To when AMF receives the first message including the first UE IP address and the first tunnel identification information of AN transmission
When, the first UE IP address and corresponding first session of the first tunnel identification information can be determined according to the first corresponding relationship, in turn
Re-establish the first session.
Optionally, the first tunnel identification information is the mark (that is, Tunnel Identifier) for transmitting the tunnel of first downstream data, AN
At least one of tunnel information and the tunnel information of the side UPF of side.Above-mentioned example is merely illustrative of, the first Tunnel Identifier letter
Breath is used for the tunnel of identification transmission first downstream data, the application to the particular content of the first tunnel identification information without limitation.
When UE establishes the second session, AMF updates the information saved, the relevant session information of the second session of addition.For example,
Include: after the information update saved on AMF
UE mark, the corresponding SMF mark of the first session, the first tunnel identification information, the first UE IP address, the first session
Mark between corresponding relationship, and,
UE mark, the corresponding SMF mark of the second session, the corresponding tunnel identification information of the second session are (for example, the second tunnel
Identification information), the corresponding UE IP address of the second session (for example, the 2nd UE IP address), pair between the mark of the second session
It should be related to.
In order to more clearly describe the method provided by the present application for establishing session, in the following, this will be introduced in conjunction with above content
The information exchange figure for establishing session provided is provided.
As shown in fig. 6, in the method, AMF saves corresponding relationship, and when the ue needs to be paged, paging flow is triggered by AMF
Journey.This method comprises:
S601, AN receive downlink data from UPF, and downlink data includes UE IP address and tunnel identification information (that is, session
Information).
S602, since AN does not save the corresponding wireless connection information of above-mentioned downlink data, AN sends logical to AMF
Know message, which carries the session information in S601.
S603, AMF connect according to corresponding relationship (that is, UE mark-session information-session identification-SMF is identified) determination of preservation
The corresponding session of the session information received, UE and SMF.
Then, AMF executes following different steps according to the different conditions of the corresponding UE of session information.
When UE is in Idle state, (AMF can be herein existing skill according to the state of the UE context determination UE of preservation
Art repeats no more), AMF triggering paging process executes S604 to S606.
S604, AMF send paging message to AN, which carries paging mark, which identifies for identifying UE.
Optionally, AMF can send all or part of corresponding relationship relevant to the UE to AN, in order to work as AN again from
It, can be directly according to the corresponding relationship being stored in the AN, under determining when UPF receives the downlink data of other sessions of the UE
The corresponding session of row data no longer needs to send a notification message to AMF to get the corresponding session context of the session,
Without determining the corresponding session of the downlink data by AMF, to alleviate the burden of AMF.For example, AMF can be disappeared by paging
Cease to AN send it is relevant to the UE all or part corresponding relationship, can also by other message in addition to paging message to
AN sends all or part of corresponding relationship relevant to the UE.
S605, AN page UE according to the paging message received.
S606, the UE being paged initiates se ce request procedure, to restore session.For example, the se ce request procedure can be with
Including S607~S611.
When UE is in connected state, (AMF can be herein existing skill according to the state of the UE context determination UE of preservation
Art repeats no more), AMF triggers context Establishing process, for example, executing S607.
S607, AMF send session context acquisition request to SMF corresponding with session information, which obtains
Request carries session identification.
S608, SMF send session context to AMF and obtain response, which obtains response and carry session identification
Corresponding session context, the session context for example can be the QoS information of session.
S609, AMF establish request to AN forwarding session context, which, which establishes, requests to carry the meeting in S608
Talk about context.
S610, AN trigger the wireless connection Establishing process between UE and AN.
It should be noted that SMF is by determining session context, after being sent to AN by the forwarding of AMF, AN is according to receiving
Session context, establish the DRB between AN and UE.Therefore, AMF can be without it is understood that the session context that SMF is sent.
S611, AN send session context to AMF and establish response.
Fig. 7 shows the information exchange figure that another kind provided by the present application establishes session.In method shown in Fig. 7, AMF
Corresponding relationship is transferred to AN, and corresponding relationship is saved by AN.When the ue needs to be paged, paging process is triggered by AN.This method
Include:
S701, AN receive downlink data from UPF, and UE IP address and Tunnel Identifier letter are got from the downlink data
It ceases (that is, session information).
S702, since AN does not save the corresponding wireless connection information of above-mentioned downlink data, AN is asked to AMF transmission
Message is sought, which carries the session information in S701.The request message is for requesting AMF that the session information is corresponding
The corresponding relationship of UE is sent to AN.
S703, AMF connect according to corresponding relationship (that is, UE mark-session information-session identification-SMF is identified) determination of preservation
The corresponding session of the session information received, UE and SMF, and response message is sent to AN, which carries above-mentioned correspondence
Relationship saves the corresponding relationship in order to AN and establishes the corresponding session of downlink data in S701 according to the corresponding relationship.
Optionally, the response message in S703 can carry relevant to UE described in S703 other corresponding relationships (for example,
All or part of corresponding relationship of UE), in order to belong to the downlink datas of the other sessions of the UE when AN is received from UPF again
When, the corresponding session of downlink data can be determined, to get the session directly according to the corresponding relationship being stored in the AN
Corresponding session context.
Then, AN executes following different steps according to the different conditions of the corresponding UE of session information.It should be noted that AN
The state of UE, a kind of implementation are judged according to the contextual information of the UE saved in the AN are as follows: upper as the UE saved in AN
In context information, when having wireless connection information, then AN judges that UE is in connected state；Conversely, AN judges that UE is in Idle state.
When UE is in Idle state (state that AN can judge UE according to the contextual information of the UE saved in AN), AN touching
Hair paging process, executes S704.
S704, AN page UE.
S705, the UE being paged initiates se ce request procedure, to restore session.For example, the se ce request procedure can be with
Including S706~S708.
When UE is in connected state (state that AN can judge UE according to the contextual information of the UE saved in AN), AN touching
Context Establishing process is sent out, S706 is executed.
S706, AN send session context acquisition request to SMF corresponding with session information by AMF, above and below the session
Literary acquisition request carries session identification.
S707, SMF send session context to AN by AMF and obtain response, and session context acquisition response, which carries, to be used
In the context for establishing session, which such as can be the QoS information of session.
S708, AN trigger the radio bearer Establishing process between UE and AN.
S709, AN send session context to SMF and establish response.
Fig. 8 show it is provided by the present application another establish the information exchange figure of session.In method shown in Fig. 8, AMF
Corresponding relationship is transferred to AN, and corresponding relationship is saved by AN.When the ue needs to be paged, paging process is triggered by AMF.This method
Include:
S801, AN receive downlink data from UPF, and UE IP address and Tunnel Identifier letter are got from the downlink data
It ceases (that is, session information).If the AN preserves the wireless connection information of the corresponding UE of the session information, AN judges that the UE is in
Connected state, at this point, AN directly can ask for session context to SMF by AMF, in order to restore the downlink data pair received
The session answered.
S802, if the wireless connection information of the not no corresponding UE of the session information of the AN, AN judges that the UE is in the free time
State, at this point, also can not just determine that above-mentioned downlink data is corresponding since AN can not determine which session above-mentioned session information belongs to
Wireless connection information, therefore, AN send request message to AMF, which carries the session information in S801.The request disappears
Breath is used to request AMF by all or part of the corresponding UE of the session information for notifying AMF to have downlink data to be sent to AN
Corresponding relationship is sent to AN.
It should be noted that S801~S802 may be replaced by following steps: S801 ', SMF receive swashing for UPF transmission
Session request living, carries session identification.Active session request restores the corresponding connection of session for triggering SMF.S802 ',
SMF sends N11 message to AMF, carries session information.Wherein, session information includes the tunnel of the corresponding qos parameter of session, UPF
Information etc..At this point, AMF pages UE, and all or part of corresponding relationship of UE is sent out if AMF judges that UE is in Idle state
Give AN.If AMF judges that UE is in connected state, session information is sent to AN by AMF, and triggering AN is extensive according to the session information
DRB connection between multiple AN and UE.That is, all or part of corresponding relationship of UE is sent to AN by AMF, can be by gathering
The request message triggering that AN under user's surface model scene of mould assembly is sent, alternatively, being also possible to by the user of session granularity
The N11 message trigger that SMF is sent under surface model.
S803, AMF are according to the session information received from AN, and the corresponding relationship saved is (that is, UE mark-session letter
Breath-session identification-SMF mark) determine the corresponding session of session information, UE and the SMF received.In addition, AMF passes through paging
Message, or other message in addition to paging message, are sent to AN for the corresponding relationship of UE.
S804, AMF can trigger paging process after determining the corresponding UE of session information, that is, AMF sends paging to AN and disappears
Breath.
S805, AN send paging message to UE.
S806, UE are paged later, and UE initiates se ce request procedure.For example, UE sends service request information to AMF,
AMF receives service request information, sends session context acquisition request to SMF corresponding with session information described in S801,
The session context acquisition request carries session identification.
When AN is received again by the downlink data of other sessions of UE, AN is triggered up and down according to the corresponding relationship of the UE of preservation
Literary establishment process executes S807.
S807, AN are according to the UE IP address and Tunnel Identifier letter in the corresponding relationship and downlink data of the UE of preservation
Breath determines that the corresponding session identification of the downlink data, AN send session context to the corresponding SMF of the session identification by AMF
Acquisition request carries session identification.
S808, SMF send session context to AN by AMF and obtain response, carry the corresponding session of session identification or more
Text.The session context can be the QoS information of session, tunnel information of UPF etc..
It should be noted that since the SMF session context determined is used to be sent to AN, so that AN is established between AN and UE
DRB.Therefore, AMF is without it is understood that the session context that SMF is sent, that is to say, that AMF forwards session context to AN.
S809, AN are according to the wireless connection Establishing process between the session context triggering UE and AN received.
Fig. 9~Figure 11 gives the operation of AN and AMF under abnormal conditions.
Fig. 9 show it is provided by the present application another establish the information exchange figure of session.Method shown in Fig. 9 describes AN
Before the corresponding relationship for receiving UE, scene when being received again by downlink data, this method comprises:
S901, AN receive the downlink data of session 1 from UPF, and therefrom get UE IP address and tunnel identification information
(that is, session information).It should be understood that " session 1 " be only used for identifying session belonging to the downlink data, in order to in S903 under
Row data distinguish, and AN is not aware which session the downlink data belongs at this time.
S902, since AN does not save the corresponding wireless connection information of above-mentioned downlink data, according to Fig. 6~Fig. 8 institute
The method shown, AN sends a notification message to AMF or request message.The notification message carries the session information in S901, and is used for
Notice AMF AN has received the corresponding downlink data of the session information.The request message carries the meeting from the downlink data of session 1
Information is talked about, for requesting AMF that the corresponding relationship of the session information is sent to the AN.
S903, AN receive the downlink data of session 2 from UPF.
At this point, can choose there are two types of the processing methods of AN and execute S904, it also can choose and execute S905.
S904, AN cache the downlink data of session 2, do not send a notification message or request message.AMF to be received is directed to S902
In notification message or request message send response message when, according to the corresponding relationship carried in the response message, to session 1
It is handled with the downlink data of session 2.By taking method shown in Fig. 7 (AN paging and AN saves corresponding relationship) as an example, specifically
Treatment process are as follows: AN determines the corresponding session identification of downlink data, i.e. session 1 and session 2 according to corresponding relationship；AN judges UE
State, determine paging UE or by AMF directly to the corresponding session context of the corresponding SMF queued session 1 of session identification
And the corresponding session context of session 2.
When AN select execute S905 when, that is, AN sends a notification message to AMF or request message, the notification message or this ask
Message is asked to carry the session information parsed from the downlink data of session 2, at this point, AMF can execute S906.
The operation of S906, AMF are as follows: AMF is not handled；Alternatively, when the corresponding relationship of the UE is handed down to by AMF determination
When AN, AMF sends response message to AN, is matched with showing that AMF has been issued to AN with session information described in S905
Corresponding relationship.
Figure 10 show it is provided by the present application another establish the information exchange figure of session.Following figure 10 and Figure 11 are suitable for
UE passes through the scene of user's surface model of aggretion type and user's surface model access DN of session granularity simultaneously.For example, UE is by gathering
It closes tunnel and accesses DN1, and DN2 is accessed by session tunnel.Wherein, UE has 2 sessions on aggregating tunnel.In session tunnel
There is 1 session on road.
When the downlink data on session tunnel first reaches, is reached after the downlink data on aggregating tunnel, carry out Figure 10
Process.As shown in Figure 10, this method comprises:
S1001a, UPF receive downlink data.
S1101b, UPF send downlink data notification message to SMF, which carries session identification, with
The connection that notice SMF triggers the session identification respective session restores.
S1101c, SMF send N11 message to AMF, carry session context, which includes session identification pair
Qos parameter, UPF tunnel information for answering etc..
S1002, when AMF judges that UE is in Idle state, AMF sends paging message to AN.
In addition, AMF by the message in addition to paging message to AN send UE corresponding relationship, that is, session 1, UE mark,
The corresponding relationship of SMF mark and the session information of session 1.
If AMF receives notification message or request message from AN at this time, as shown in S1003,
S1004, according to method 300, AN can send a notification message to AMF or request message, and the notification message or request disappear
Breath carries the UE IP address obtained from the downlink data of session 1 and tunnel identification information (that is, session information).
After S1005, AMF receive notification message or request message, according to the corresponding relationship that AMF is saved, judge AMF
Corresponding relationship is sent to UE, or has paged UE, then AMF operation can be such that not to the notification message received or ask
Message is asked to do any processing；Alternatively, AMF sends response message to AN to indicate that corresponding corresponding relationship has been handed down to by AMF
AN or AMF have paged UE.
Figure 11 show it is provided by the present application another establish the information exchange figure of session.When the lower line number on aggregating tunnel
It according to first reaching, is reached after the downlink data on session tunnel, carries out the process of Figure 11.As shown in figure 11, this method comprises:
S1101, AN receive the downlink data of session 1 from UPF, and therefrom get UE IP address and tunnel identification information
(that is, session information).At this point, AN does not know which session the session information belongs on earth, " session 1 " may be any
One session.
S1102, since AN does not know which session session information belongs to, according to method 300, AN sends notice to AMF and disappears
Breath or acquisition request, the request message carry above-mentioned session information.
After S1103, AMF receive the notification message or request message, pass is corresponded to according to what session information and AMF were saved
System, determines the corresponding UE of session information.Also, the corresponding relationship of UE is sent to AN by AMF, and/or, AMF sends to AN and pages
Message.
If hereafter, AMF receives the N11 message from SMF, as shown in S1104a-S1104c,
S1104a, UPF receive downlink data.
S1104b, UPF send downlink data notification to SMF, carry session identification.
S1104c, SMF send N11 message to AMF, carry the corresponding session context of the session identification, including QoS ginseng
Number, UPF tunnel information etc..
After AMF receives N11 message, step S1105 can be executed, alternatively, executing step S1106 and S1107.
S1105, since the corresponding relationship of UE is sent to AN by AMF, and/or, AMF triggered paging, then
Corresponding relationship need not be sent to AN again, and/or, paging message.Therefore, the operation of AMF may is that without any processing.
S1106, AMF send paging message to AN.
AN receives the operation after paging message described in S1106 and may is that
S1107 does not do any processing to above-mentioned paging message；Alternatively, AN sends response message to AMF to indicate AN
Page UE.
The method example provided by the present application for establishing session has been described in detail above.It is understood that AN and AMF in order to
Realize above-mentioned function, it comprises execute the corresponding hardware configuration of each function and/or software module.Those skilled in the art answer
This is readily appreciated that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, the application energy
The combining form with hardware or hardware and computer software is reached to realize.Some function is driven actually with hardware or computer software
The mode of dynamic hardware executes, the specific application and design constraint depending on technical solution.Professional technician can be right
Each specific application is to use different methods to achieve the described function, but this realization is it is not considered that exceed the application
Range.
The application can carry out the division of functional unit according to above method example to AN etc., for example, can correspond to each
Two or more functions can also be integrated in a processing unit by each functional unit of function division.Above-mentioned collection
At unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs to illustrate
Being is schematically in addition only a kind of logical function partition can have in actual implementation to the division of unit in the application
Division mode.
Using integrated unit, one kind that Figure 12 shows AN involved in above-described embodiment is possible
Structural schematic diagram.AN1200 includes: processing unit 1202 and communication unit 1203.Processing unit 1202 is for moving AN1200
Control management is carried out, for example, processing unit 1202 is for supporting AN1200 to execute the S320 of Fig. 3 and/or retouched for this paper
The other processes for the technology stated.Communication unit 1203 is used to supporting the communication of AN1200 Yu other network entities, for example, with AMF it
Between communication.AN1200 can also include storage unit 1201, for storing the program code and data of AN1200.
Wherein, processing unit 1202 can be processor or controller, such as can be central processing unit (central
Processing unit, CPU), general processor, digital signal processor (digital signal processor, DSP),
Specific integrated circuit (application-specific integrated circuit, ASIC), field programmable gate array
It is (field programmable gate array, FPGA) or other programmable logic device, transistor logic, hard
Part component or any combination thereof.It may be implemented or execute to combine and various illustratively patrol described in present disclosure
Collect box, module and circuit.The processor is also possible to realize the combination of computing function, such as includes one or more micro- places
Manage device combination, DSP and the combination of microprocessor etc..Communication unit 1203 can be communication interface.Storage unit 1201 can be with
It is memory.
Communication unit 1203 can be used for executing operations described below: receive first downstream data, the first downstream data packet from UPF
Include the first UE IP address and the first tunnel identification information；First message is sent to AMF, the first message is including the first UE IP
Location and the first tunnel identification information；Second message is received from AMF, which includes for establishing the upper and lower of the first session
Text, first session are session corresponding with the first UE IP address and the first tunnel identification information.
AN1200 receives the use of AMF transmission by sending the first UE IP address and the first tunnel identification information to AMF
In the context for restoring the first session, so as to restore to believe between UE and AN with the first UE IP address and the first Tunnel Identifier
Corresponding wireless connection is ceased, AN1200 is avoided to abandon first downstream data.
Optionally, communication unit 1203 is also used to: receiving third message from AMF, which includes the first session
The first corresponding relationship between mark, the first UE IP address and the first tunnel identification information, which further includes the second meeting
The second corresponding relationship between the mark of words, the 2nd UE IP address and the second tunnel identification information.
When AN1200 receives the corresponding downlink data of the second session, so that it may be determined according to second corresponding relationship
The corresponding session of downlink data, i.e. the second session, so that the corresponding session context of the second session is got from SMF by AMF,
So as to restore wireless connection corresponding with the 2nd UE IP address and the second tunnel identification information between UE and AN1200, keep away
Exempt from AN1200 and abandons second downstream data.
Optionally, communication unit 1203 is also used to: receiving second downstream data from UPF, the second downstream data includes
The 2nd UE IP address and second tunnel identification information；The mark of the second session is sent to AMF；It is used for from AMF reception
Establish the context of the second session.
When AN1200 receives second downstream data, the 2nd UE IP address that can include according to second downstream data
The mark of the second session is determined with the second tunnel identification information, and the mark of the second session is sent to AMF, thus, AMF is no longer needed to
The mark of the second session is determined according to the 2nd UE IP address and the second tunnel identification information, will can directly be used to restore second
The context of session is sent to AN1200, improves the response speed of AMF, reduces the burden of AMF.
Optionally, communication unit 1203 is also used to: if the first UE is in Idle state, paging message is sent to the first UE, it should
First UE is UE corresponding with the first UE IP address and the first tunnel identification information.
The method that AN1200 can restore the first session accordingly according to the current concrete condition selection of the first UE, such as when
When first UE is in Idle state, the method that can take above-mentioned paging restores the first session, so as to avoid AN1200 from abandoning
First downstream data；When the first UE is in connected state, AN1200 can be obtained directly by AMF to the corresponding SMF of the first session
The corresponding session context of the first session is taken, to restore the company of eating dishes without rice or wine between the corresponding AN1200 and the first UE of the first session
It connects, avoiding AN from abandoning first downstream data bring user experience reduces.
Optionally, the first tunnel identification information is in the tunnel information of Tunnel Identifier, the tunnel information of the side AN and the side UPF
It is at least one.
Optionally, communication unit 1203 is also used to: sending first downstream data, the first UE to the first UE by the first session
For UE corresponding with the first UE IP address and the first tunnel identification information.
When processing unit 1202 is processor, communication unit 1203 is communication interface, when storage unit 1201 is memory,
AN involved in the application can be AN shown in Figure 13.
Refering to fig. 1 shown in 3, which includes: processor 1302, communication interface 1303, memory 1301.Wherein, lead to
Letter interface 1303, processor 1302 and memory 1301 can be in communication with each other by internal connecting path, transmitting control and/or
Data-signal.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, is not added repeats herein.
Using integrated unit, Figure 14 shows a kind of possibility of AMF involved in above-described embodiment
Structural schematic diagram.AMF1400 includes: processing unit 1402 and communication unit 1403.Processing unit 1402 is used for AMF1400
Movement carry out control management, for example, processing unit 1402 be used for support AMF1400 execute Fig. 4 S410 and/or for herein
Other processes of described technology.Communication unit 1403 is used to supporting the communication of AMF1400 Yu other network entities, such as with
Communication between AN.AMF1400 can also include storage unit 1401, for storing the program code and data of AMF1400.
Wherein, processing unit 1402 can be processor or controller, such as can be CPU, general processor, DSP,
ASIC, FPGA or other programmable logic device, transistor logic, hardware component or any combination thereof.It can be with
It realizes or executes and combine various illustrative logic blocks, module and circuit described in present disclosure.The processing
Device is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, the group of DSP and microprocessor
Close etc..Communication unit 1403 can be communication interface etc..Storage unit 1401 can be memory.
Communication unit 1403 is for executing operations described below: receiving first message from AN, which includes the first UE IP
Address and the first tunnel identification information；Second message is sent to AN, which includes for establishing the upper and lower of the first session
Text, first session are session corresponding with the first UE IP address and the first tunnel identification information.
AMF1400 receives the first UE IP address and the first tunnel identification information from AN, and sends to AN for restoring first
The context of session, so as to restore nothing corresponding with the first UE IP address and the first tunnel identification information between UE and AN
Line connection, avoids AN from abandoning first downstream data.
Optionally, communication unit 1403 is also used to: if the first UE is in Idle state, paging message is sent to the first UE,
First UE is UE corresponding with the first UE IP address and the first tunnel identification information.
The method that AMF1400 can restore the first session accordingly according to the current concrete condition selection of the first UE, such as
When the first UE is in Idle state, the method that can take above-mentioned paging restores the first session, so as to avoid AN from abandoning the
One downlink data；When the first UE is in connected state, AMF1400 directly can obtain the first meeting to the corresponding SMF of the first session
Corresponding session context hair is talked about, and gives AN, so that AN restores the sky between the corresponding AN and the first UE of the first session
Mouth connection, avoiding AN from abandoning first downstream data bring user experience reduces.
Optionally, communication unit 1403 is also used to: sending third message to AN, which includes the mark of the first session
Know, the first corresponding relationship between the first UE IP address and the first tunnel identification information, third message further includes the second session
The second corresponding relationship between mark, the 2nd UE IP address and the second tunnel identification information.
The 2nd UE IP address that can include according to second downstream data when AN receives second downstream data and
Two tunnel identification informations determine the mark of the second session, and the mark of the second session is sent to AMF1400, thus, AMF1400 without
The mark of the second session need to be determined further according to the 2nd UE IP address and the second tunnel identification information, will can directly be used to restore
The context of second session is sent to AN, improves the response speed of AMF1400, reduces the burden of AMF1400.
Optionally, communication unit 1403 is also used to: the mark of the second session is received from AN；It sends to AN for establishing second
The context of session.
Optionally, communication unit 1403 is also used to: obtaining the first UE IP address, the first tunnel identification information and the from SMF
The first corresponding relationship between the mark of one session.
Optionally, the first tunnel identification information is in the tunnel information of Tunnel Identifier, the tunnel information of the side AN and the side UPF
It is at least one.
When processing unit 1402 is processor, communication unit 1403 is communication interface, when storage unit 1401 is memory,
AMF involved in the application can be AMF shown in figure 15.
Refering to fig. 1 shown in 5, which includes: processor 1502, communication interface 1503, memory 1501.Wherein, lead to
Letter interface 1503, processor 1502 and memory 1501 can be in communication with each other by internal connecting path, transmitting control and/or
Data-signal.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is set, can refer to corresponding processes in the foregoing method embodiment, is not added repeats herein.
AN or AMF in device and method embodiment is completely corresponding, executes corresponding step by corresponding module, such as logical
Believe that unit executes the step of sending and/or receiving in embodiment of the method, other steps in addition to transmission and/or reception can be by
It manages module or processor executes.The function of specific module can refer to corresponding embodiment of the method, no longer be described in detail.
Present invention also provides a kind of communication chips, wherein instruction is stored with, when it runs on AN1200 or AN1300
When, so that the communication chip executes the corresponding method of AN in above-mentioned various implementations.
Present invention also provides a kind of communication chips, wherein instruction is stored with, when it is transported on AMF1400 or AMF1500
When row, so that the communication chip executes the corresponding method of AMF in above-mentioned various implementations.
In each embodiment of the application, the size of the serial number of each process is not meant that the order of the execution order, each mistake
The execution sequence of journey should be determined by its function and internal logic, and the implementation process without coping with the application constitutes any restriction.
In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist
Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately
Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The step of method in conjunction with described in present disclosure or algorithm can realize in a manner of hardware, can also
It is realized in a manner of being to execute software instruction by processor.Software instruction can be made of corresponding software module, software mould
Block can be stored on random access memory (random access memory, RAM), flash memory, read-only memory (read
Only memory, ROM), Erasable Programmable Read Only Memory EPROM (erasable programmable ROM, EPROM), electricity can
Erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM
(CD-ROM) or in the storage medium of any other form well known in the art.A kind of illustrative storage medium is coupled to place
Device is managed, to enable a processor to from the read information, and information can be written to the storage medium.Certainly, it stores
Medium is also possible to the component part of processor.Pocessor and storage media can be located in ASIC.In addition, the ASIC can position
In AN or AMF.Certainly, pocessor and storage media can also be used as discrete assembly and be present in AN and AMF.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program
Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or
It partly generates according to process described herein or function.The computer can be general purpose computer, special purpose computer, meter
Calculation machine network or other programmable devices.The computer instruction may be stored in a computer readable storage medium, or
It is transmitted by the computer readable storage medium.The computer instruction can be from web-site, computer, a clothes
Be engaged in device or data center by it is wired (such as coaxial cable, optical fiber, Digital Subscriber Line (digital subscriber line,
DSL)) or wireless (such as infrared, wireless, microwave etc.) mode is to another web-site, computer, server or data center
It is transmitted.The computer readable storage medium can be any usable medium or include one that computer can access
The data storage devices such as a or multiple usable mediums integrated server, data center.The usable medium can be magnetic Jie
Matter, (for example, floppy disk, hard disk, tape), optical medium (for example, digital versatile disc (digital versatile disc,
) or semiconductor medium (such as solid state hard disk (solid state disk, SSD)) etc. DVD.
Above-described specific embodiment has carried out further the purpose of the application, technical scheme and beneficial effects
It is described in detail, it should be understood that being not used to limit the application the foregoing is merely the specific embodiment of the application
Protection scope, all any modification, equivalent substitution, improvement and etc. on the basis of the technical solution of the application, done should all
Including within the scope of protection of this application.
Claims (24)
1. a kind of method for establishing session, which is characterized in that the described method includes:
Access net AN equipment receives first downstream data from user plane functions UPF equipment, and the first downstream data includes first
User equipment (UE) network protocol IP address and the first tunnel identification information；
The AN equipment sends first message to access and mobile management function to ps domain AMF equipment, and the first message includes described
First UE IP address and first tunnel identification information；
The AN equipment receives second message from the AMF equipment, and the second message includes for establishing the first session
Hereafter, first session is session corresponding with the first UE IP address and first tunnel identification information.
2. the method according to claim 1, wherein the method also includes:
The AN equipment receives third message from the AMF equipment, and the third message includes the mark of first session, institute
The first corresponding relationship between the first UE IP address and first tunnel identification information is stated, the third message further includes
The second corresponding relationship between the mark of two sessions, the 2nd UE IP address and the second tunnel identification information.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
The AN equipment receives second downstream data from the UPF equipment, and the second downstream data includes the 2nd UE IP
Address and second tunnel identification information；
The AN equipment sends the mark of second session to the AMF equipment；
The AN equipment receives the context for establishing second session from the AMF equipment.
4. according to the method in claim 2 or 3, which is characterized in that the method also includes:
If the first UE is in Idle state, the AN equipment sends paging message to the first UE, the first UE be with it is described
First UE IP address and the corresponding UE of first tunnel identification information.
5. method according to claim 1 to 4, which is characterized in that first tunnel identification information is tunnel
At least one of road mark, the tunnel information of AN equipment side and tunnel information of UPF equipment side.
6. the method according to any one of claims 1 to 5, which is characterized in that the method also includes:
The AN equipment sends the first downstream data to the first UE by first session, the first UE be with it is described
First UE IP address and the corresponding UE of first tunnel identification information.
7. a kind of method for establishing session, which is characterized in that the described method includes:
Access and mobile management function to ps domain AMF equipment receive first message from access net AN equipment, and the first message includes the
One user equipment (UE) network protocol IP address and the first tunnel identification information；
The AMF equipment sends second message to the AN equipment, and the second message includes for establishing the first session
Hereafter, first session is session corresponding with the first UE IP address and first tunnel identification information.
8. the method according to the description of claim 7 is characterized in that the method also includes:
If the first UE is in Idle state, the AMF equipment sends paging message to the first UE, the first UE be with it is described
First UE IP address and the corresponding UE of first tunnel identification information.
9. the method according to the description of claim 7 is characterized in that the method also includes:
The AMF equipment sends third message to the AN equipment, and the third message includes the mark of first session, institute
The first corresponding relationship between the first UE IP address and first tunnel identification information is stated, the third message further includes
The second corresponding relationship between the mark of two sessions, the 2nd UE IP address and the second tunnel identification information.
10. according to the method described in claim 9, it is characterized in that, the method also includes:
The AMF equipment receives the mark of second session from the AN equipment；
The AMF equipment sends the context for establishing second session to the AN equipment.
11. method according to any one of claims 7 to 10, which is characterized in that the method also includes:
The AMF equipment obtains the first UE IP address, first Tunnel Identifier letter from conversation management functional SMF equipment
The first corresponding relationship between breath and the mark of first session.
12. method according to any one of claims 7 to 11, which is characterized in that first tunnel identification information is
At least one of Tunnel Identifier, the tunnel information of AN equipment side and tunnel information of UPF equipment side.
13. a kind of device for establishing session, which is characterized in that including communication unit, the communication unit is used for:
First downstream data is received from user plane functions UPF equipment, the first downstream data includes the first user equipment (UE) net
Network Protocol IP address and the first tunnel identification information；
First message is sent to access and mobile management function to ps domain AMF equipment, the first message includes the first UE IP
Location and first tunnel identification information；
Second message is received from the AMF equipment, the second message includes the context for establishing the first session, and described the
One session is session corresponding with the first UE IP address and first tunnel identification information.
14. device according to claim 13, which is characterized in that the communication unit is also used to:
Third message is received from the AMF equipment, the third message includes the mark of first session, the first UE
The first corresponding relationship between IP address and first tunnel identification information, the third message further include the mark of the second session
Know, the second corresponding relationship between the 2nd UE IP address and the second tunnel identification information.
15. device according to claim 14, which is characterized in that the communication unit is also used to:
Second downstream data is received from the UPF equipment, the second downstream data includes the 2nd UE IP address and described
Second tunnel identification information；
The mark of second session is sent to the AMF equipment；
The context for establishing second session is received from the AMF equipment.
16. device according to claim 14 or 15, which is characterized in that the communication unit is also used to:
If the first UE is in Idle state, the first UE of Xiang Suoshu sends paging message, and the first UE is with the first UE IP
Location and the corresponding UE of first tunnel identification information.
17. device described in any one of 3 to 16 according to claim 1, which is characterized in that first tunnel identification information is
At least one of Tunnel Identifier, the tunnel information of AN equipment side and tunnel information of UPF equipment side.
18. device described in any one of 3 to 17 according to claim 1, which is characterized in that the communication unit is also used to:
The first downstream data is sent to the first UE by first session, the first UE is and the first UE IP
Address and the corresponding UE of first tunnel identification information.
19. a kind of device for establishing session, which is characterized in that including communication unit, the communication unit is used for:
From access net AN equipment receive first message, the first message include the first user equipment (UE) network protocol IP address and
First tunnel identification information；
Second message is sent to the AN equipment, the second message includes the context for establishing the first session, and described the
One session is session corresponding with the first UE IP address and first tunnel identification information.
20. device according to claim 19, which is characterized in that the communication unit is also used to:
If the first UE is in Idle state, the first UE of Xiang Suoshu sends paging message, and the first UE is with the first UE IP
Location and the corresponding UE of first tunnel identification information.
21. device according to claim 19, which is characterized in that the communication unit is also used to:
Third message is sent to the AN equipment, the third message includes the mark of first session, the first UE IP
The first corresponding relationship between address and first tunnel identification information, the third message further include the mark of the second session
Know, the second corresponding relationship between the 2nd UE IP address and the second tunnel identification information.
22. device according to claim 21, which is characterized in that the communication unit is also used to:
The mark of second session is received from the AN equipment；
The context for establishing second session is sent to the AN equipment.
23. device described in any one of 9 to 22 according to claim 1, which is characterized in that the communication unit is also used to:
The first UE IP address, first tunnel identification information and described first are obtained from conversation management functional SMF equipment
The first corresponding relationship between the mark of session.
24. device described in any one of 9 to 23 according to claim 1, which is characterized in that first tunnel identification information is
At least one of Tunnel Identifier, the tunnel information of AN equipment side and tunnel information of UPF equipment side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533748.1A CN109429364B (en) | 2017-07-03 | 2017-07-03 | Method and device for establishing session |
| PCT/CN2018/092760 WO2019007226A1 (en) | 2017-07-03 | 2018-06-26 | Method and device for establishing session |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533748.1A CN109429364B (en) | 2017-07-03 | 2017-07-03 | Method and device for establishing session |
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| Publication Number | Publication Date |
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| CN109429364A true CN109429364A (en) | 2019-03-05 |
| CN109429364B CN109429364B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710533748.1A Expired - Fee Related CN109429364B (en) | 2017-07-03 | 2017-07-03 | Method and device for establishing session |
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| WO (1) | WO2019007226A1 (en) |
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| CN111770124A (en) * | 2019-04-02 | 2020-10-13 | 华为技术有限公司 | Method and device for selecting session management network element |
| WO2021031592A1 (en) * | 2019-08-16 | 2021-02-25 | 中兴通讯股份有限公司 | Method and device for reporting user plane functional entity information, storage medium and electronic device |
| CN112752303A (en) * | 2021-01-06 | 2021-05-04 | 深圳市日海飞信信息系统技术有限公司 | Local shunting method, device and equipment for vertical industry |
| CN112866323A (en) * | 2019-11-28 | 2021-05-28 | 中兴通讯股份有限公司 | Session updating method, device, terminal equipment and storage medium |
| CN113973269A (en) * | 2020-07-23 | 2022-01-25 | 华为技术有限公司 | Data transmission method, device and system |
| CN114009139A (en) * | 2019-06-17 | 2022-02-01 | 瑞典爱立信有限公司 | Processing of session context |
| CN114071791A (en) * | 2020-08-06 | 2022-02-18 | 北京佰才邦技术股份有限公司 | User plane function information reporting method, access network equipment and core network equipment |
| CN114424599A (en) * | 2020-08-28 | 2022-04-29 | 柏思科技有限公司 | Method and system for transmitting session-based packets |
| CN114554620A (en) * | 2022-02-21 | 2022-05-27 | 深圳艾灵网络有限公司 | Data communication method, device, electronic equipment and storage medium |
| WO2023169399A1 (en) * | 2022-03-11 | 2023-09-14 | 维沃移动通信有限公司 | Communication method, device, terminal, and node |
| WO2023216210A1 (en) * | 2022-05-13 | 2023-11-16 | 北京小米移动软件有限公司 | Information processing method and apparatus, communication device and storage medium |
| US12028929B2 (en) | 2019-04-02 | 2024-07-02 | Huawei Technologies Co., Ltd. | Method and apparatus for selecting session management network element |
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| WO2021052587A1 (en) * | 2019-09-19 | 2021-03-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Virtual data session |
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| US12028929B2 (en) | 2019-04-02 | 2024-07-02 | Huawei Technologies Co., Ltd. | Method and apparatus for selecting session management network element |
| CN111770124B (en) * | 2019-04-02 | 2022-01-11 | 华为技术有限公司 | Method and device for selecting session management network element |
| CN111770124A (en) * | 2019-04-02 | 2020-10-13 | 华为技术有限公司 | Method and device for selecting session management network element |
| CN114009139A (en) * | 2019-06-17 | 2022-02-01 | 瑞典爱立信有限公司 | Processing of session context |
| WO2021031592A1 (en) * | 2019-08-16 | 2021-02-25 | 中兴通讯股份有限公司 | Method and device for reporting user plane functional entity information, storage medium and electronic device |
| CN112866323A (en) * | 2019-11-28 | 2021-05-28 | 中兴通讯股份有限公司 | Session updating method, device, terminal equipment and storage medium |
| CN113973269A (en) * | 2020-07-23 | 2022-01-25 | 华为技术有限公司 | Data transmission method, device and system |
| CN114071791B (en) * | 2020-08-06 | 2024-01-26 | 北京佰才邦技术股份有限公司 | User plane function information reporting method, access network equipment and core network equipment |
| CN114071791A (en) * | 2020-08-06 | 2022-02-18 | 北京佰才邦技术股份有限公司 | User plane function information reporting method, access network equipment and core network equipment |
| CN114424599A (en) * | 2020-08-28 | 2022-04-29 | 柏思科技有限公司 | Method and system for transmitting session-based packets |
| CN114424599B (en) * | 2020-08-28 | 2023-12-08 | 柏思科技有限公司 | Method and system for transmitting session-based packets |
| CN112752303B (en) * | 2021-01-06 | 2022-11-01 | 深圳市日海飞信信息系统技术有限公司 | Local shunting method, device and equipment for vertical industry |
| CN112752303A (en) * | 2021-01-06 | 2021-05-04 | 深圳市日海飞信信息系统技术有限公司 | Local shunting method, device and equipment for vertical industry |
| CN114554620A (en) * | 2022-02-21 | 2022-05-27 | 深圳艾灵网络有限公司 | Data communication method, device, electronic equipment and storage medium |
| CN114554620B (en) * | 2022-02-21 | 2024-09-13 | 深圳艾灵网络有限公司 | Data communication method, device, electronic equipment and storage medium |
| WO2023169399A1 (en) * | 2022-03-11 | 2023-09-14 | 维沃移动通信有限公司 | Communication method, device, terminal, and node |
| WO2023216210A1 (en) * | 2022-05-13 | 2023-11-16 | 北京小米移动软件有限公司 | Information processing method and apparatus, communication device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109429364B (en) | 2020-06-02 |
| WO2019007226A1 (en) | 2019-01-10 |
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