CN107889175A - Method for switching network, apparatus and system, method for network access and device - Google Patents
Method for switching network, apparatus and system, method for network access and device Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
- H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
- H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
Abstract
The invention provides a kind of method for switching network, apparatus and system, method for network access and device.Wherein, the method for switching network includes：When user equipment (UE) is moved to the second network by first network, network switching information is sent to the second network-based control face entity；Wherein, the service entities mark corresponding to the service entities that packet data network PDN types, APN APN and the UE had been accessed is comprised at least in the network switching information, the network switching information is used to indicate the service entities for selecting access by the second network-based control face entity, and the service entities include：SCEF and anchor point GW.By the present invention, solve the problems, such as in the technology of pass can not to select the service entities originally used caused by UE uses identical APN and cause data outage or business continuance not to ensure.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method for switching network, apparatus and system, network insertion
Method and device.
Background technology
Mobile communication has evolved to the 4G stages at present.The 4G network architecture is compared with earlier generations, is mainly characterized by being based on
Full IP transmission.3GPP is studying the 5G network architectures at present.
Fig. 1 is a kind of 4G networks and the Organization Chart of 5G network interworkings in correlation technique.The function of each network element in the network architecture
It is as follows：
Terminal, (User Equipment, abbreviation UE), 4G networks are mainly accessed by radio open and serviced, eventually
End passes through Non-Access Stratum signaling (non Access Stratum, abbreviation NAS) and core net by eating dishes without rice or wine and base station interactive information
Mobility management entity interactive information.
Base station (Radio Access Network, abbreviation RAN), be responsible for accessing terminal to network interface-free resources scheduling and with
And the connection management eated dishes without rice or wine.Base station is referred to as eNodeB in 4G networks, the base station carrying NG RAN in 5G networks.
Mobile management entity (Mobility Management Entity, abbreviation MME)：4G core network control surface entities,
It is main to be responsible for checking the authentication of user, mandate and signing, to ensure that user is validated user；User mobility management, bag
Include location registration and temporary mark distribution；Safeguard IDLE and CONNECT states and state transition；Under CONNECT states
Switching；Public data network (Public Data Network, abbreviation PDN) connects and the maintenance of carrying, including creates, changes
With delete etc. session management function；The function such as triggering paging under user's IDLE state.In 5G core nets, control face entity can
Including multiple functions, mobile management function to ps domain, conversation management functional, authentication functions etc..
Gateway (Serving GateWay, abbreviation SGW)：Core network user face functional entity, it is main to be responsible for roaming feelings
Under condition and public data network gateway PGW interaction；Downlink data packet is received under user's IDLE state to be cached and notify MME to seek
Exhale user；Across the user plane anchor point of base station and across functions such as the ambulant user plane anchor points of 2G/3G/4G.
Network ability opens functional entity and (Service Capability Exposure Function, is referred to as
SCEF)：Its function includes non-IP data transmission grants inspection, T6 connection managements, the non-IP data deliveries of up-downgoing.
Grappling GW：It is terminal access PDN Network Access Points, is responsible for distributing user IP address, the carrying of network-triggered establishes,
Modification and deletion, it is that user switches in 3GPP system and between non-3 GPP system also with functions such as QoS control chargings
Anchor point, so as to ensure that IP address is constant, ensure business continuance.
Fig. 2 is that UE is realizing the flow chart of network switching in correlation technique.Specifically comprise the following steps：
Step 201；UE sends Attach Request message to MME, and the unique interim UE marks in the whole world are carried in Attach Request message
(Globally Unique Temporary identity, abbreviation GUTI) or international mobile subscriber identity
(International Mobile Subscriber Identification, abbreviation IMSI)；PDN connections are carried in message please
Ask, APN (Access Point Name, abbreviation APN) is carried in PDN connection request messages, PDN types, is initially connect
Enter instruction；PDN types include IPv4, IP v6, IPv4v6, non-IP (non-IP)；
Step 202, if carrying GUTI in step 201, MME needs to obtain user IMSI, MME to ownership label by GUTI
About client server (Home Subscriber Server, abbreviation HSS) sends location update request message, carries and uses in message
Family IMSI, MME address
Step 203, HSS carries the subscription data of user to MME home position confirmation messages in message, including default
APN, default QoS；
Step 204, MME selects grappling GW to be serviced for it according to PDN types in step 201 and APN, if PDN types
It is non-IP types, then MME can also select SCEF to come for its service；If without carrying APN in step 201 message, then
MME selects default APN to be serviced for it, and selects PGW or SCEF according to default APN.If that MME selections is PGW, MME to
PGW, which is sent, establishes conversation request message, and user's IMSI, PDN type is carried in message, carries ID, tunnel ID；If MME is selected
SCEF, MME are sent to SCEF and establish SCEF connection request messages, and IMSI, PDN types, MME marks are carried in message.
Step 205, PGW is returned to MME and is established conversational response message, and up PGW tunnels ID is carried in message；SCEF to
MME is returned and is established SCEF connection response messages；
Step 206, MME sends attachment received message to UE, and activation Default Bearer Request message is also carried in NAS message,
Activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 207, UE returns to attachment completion message to MME, and activation default bearer received message is carried in message；
Step 208, it is contemplated that UE can be moved to 5G systems, and MME sends notification request message to HSS, carried in message
Anchor point GW ID or the SCEF ID, APN of selection；
Step 209, HSS returns to notification acknowledgement to MME.
Step 210, UE enters Idle state in 4G networks, and notice RAT selections and cell selection can choose 5G networks
Accessed, UE sends Attach Request message to 5G CP, and the GUTI distributed in 4G systems is carried in Attach Request message；Message
Middle carrying PDN connection requests, APN, PDN types, switching access instruction are carried in PDN connection request messages；PDN types include
IPv4, IP v6, IPv4v6, non-IP (non-IP)；
Step 211,5G CP need to send location update request message to HSS by GUTI acquisition user IMSI, 5G CP,
User IMSI, 5G CP addresses are carried in message
Step 212, HSS carries the subscription data of user to 5G CP home position confirmation messages in message, including default
APN, default QoS；Grappling GW/SCEF ID, APN that UE has been accessed also are carried in message；
Step 213, MME is according to APN in step 210, and switching instruction is come to select grappling GW or SCEF in step 212 be it
Service, if that MME selections is PGW, MME is sent to PGW and establishes conversation request message, and user's IMSI, PDN class is carried in message
Type, carry ID, tunnel ID；If MME have selected SCEF, MME sends to SCEF and establishes SCEF connection request messages, taken in message
Band IMSI, PDN types, MME marks.
Step 214, PGW is returned to MME and is established conversational response message, and up PGW tunnels ID is carried in message；SCEF to
MME is returned and is established SCEF connection response messages；
Step 215, MME sends attachment received message to UE, and activation Default Bearer Request message is also carried in NAS message,
Activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 216, UE returns to attachment completion message to MME, and activation default bearer received message is carried in message；
Identical APN is used in UE, and during different types of PDN types, MME can be that it selects different types of service real
Body (PGW or SCEF) is attached.Such as when UE asks the PDN connections of the IP types such as IPv4, IPv6 or IPv4v6, MME first
It has selected PGW to service for it, for the intercommunication with 5G systems, APN and PGW ID are stored in HSS by MME；UE is requested equally
APN, but but used different types of PDN to be attached, MME have selected SCEF and be serviced for it, in order to 5G systems
Intercommunication, APN and PGW ID are stored in HSS by MME, but when UE is moved to 5G systems, 5G CP can not be according to different
PDN type selecting service entities, can only be according to the APN finally preserved, and service entities select to service for it, which results in
Original service entities can not be chosen to service for it, cause data outage or business continuance not to ensure.
The content of the invention
The embodiments of the invention provide a kind of method for switching network, apparatus and system, method for network access and device, so that
Solve that the service entities that originally used can not be selected in correlation technique caused by UE uses identical APN less and cause data
The problem of interruption or business continuance can not ensure.
According to one embodiment of present invention, there is provided a kind of method for switching network, including：In user equipment (UE) by first
During Network Mobility to the second network, network switching information is sent to the second network-based control face entity；Wherein, the net
The clothes that packet data network PDN types, APN APN and the UE had been accessed are comprised at least in network handover information
Service entities mark corresponding to entity, the network switching information are used to indicate by the second network-based control face entity
The service entities of access are selected, the service entities include：SCEF and anchor point GW.
Alternatively, the PDN types and APN are used to determine to specify service entities mark in the service entities mark,
The specified services entity identification is used to indicate that the second network-based control face entity accesses the specified services entity identification
Corresponding service entities.
Alternatively, the network switching information is being sent to before second network control face entity, methods described
Also include：Receive the network switching information that first network control face entity is sent.
Alternatively, the PDN types are comprised at least with Types Below：IP types and non-IP types；The IP types include with
It is at least one lower：IPv4, IPv6 or IPv4v6.
The control face entity of the first network comprises at least：In mobile controlled entity MME or 5G systems in 4G systems
Control face entity, the second network-based control face entity comprises at least：Mobile controlled entity MME or 5G systems in 4G systems
Control face entity in system.Alternatively, the control face entity of the first network comprises at least：Mobile controlled entity MME, it is described
Second network-based control face entity comprises at least：The MME.
According to another embodiment of the invention, there is provided a kind of method for network access, including：In user equipment (UE) by
During one Network Mobility to the second network, the network switching information that server is sent is obtained, wherein, in the network switching information extremely
Include less corresponding to the service entities that packet data network PDN types, APN APN and the UE had been accessed
Service entities identify, and the network switching information is used to indicate the service for selecting access by the second network-based control face entity
Entity, the service entities include：SCEF and anchor point GW；According to the network switching information, service entities are selected to be accessed.
Alternatively, according to the network switching information, the service entities are selected to be accessed, in addition to：By described
PDN types and the APN determine specified services entity identification, and it is real to access service corresponding to the specified services entity identification
Body.
Alternatively, the server comprises at least：Home signature user server HSS.
According to still a further embodiment, there is provided a kind of network switching device, sending module, for being set in user
When standby UE is moved to the second network by first network, network switching information is sent to the second network-based control face entity；
Wherein, packet data network PDN types, APN APN and the UE have been comprised at least in the network switching information
Service entities mark corresponding to service entities through accessing, the network switching information are used to indicate by second network
The access of chain of command entity selection service entities, the service entities include：SCEF and anchor point GW.
Alternatively, the PDN types and APN are used to determine to specify service entities mark in the service entities mark,
The specified services entity identification is used to indicate that the second network-based control face entity accesses the specified services entity identification
Corresponding service entities.
Alternatively, described device also includes：Receiving module, cut for receiving the network that first network control face entity is sent
Change information.
According to still a further embodiment, there is provided a kind of network access device, including：First acquisition module, use
In when user equipment (UE) is moved to the second network by first network, the network switching information of server transmission is obtained；Second obtains
Modulus block, in the UE attaching process or during PDN connections foundation, obtaining the PDN connection requests that the UE is sent
Information；AM access module, for according to the network switching information and the PDN connectivity request messages, selecting service entities to carry out
Access；Wherein, packet data network PDN types, APN APN and described are comprised at least in the network switching information
Service entities mark corresponding to the service entities that UE had been accessed, the PDN connectivity request messages comprise at least：It is described
PDN types, the APN, the network switching information and PDN connectivity request messages are used to indicate the control by second network
The service entities of face entity selection access processed, the service entities include：SCEF and anchor point GW.
Alternatively, the AM access module is additionally operable to, and is used to determine the service entities by the PDN types and APN
Service entities mark is specified in mark, the specified services entity identification is used to indicate that the second network-based control face entity connects
Enter service entities corresponding to the specified services entity identification.
According to another embodiment of the invention, there is provided a kind of network switching system, the system include：Server,
For when user equipment (UE) is moved to the second network by first network, network switching information to be sent to second network
Control face entity；Wherein, in the network switching information comprise at least packet data network PDN types, APN APN with
And the service entities mark corresponding to the service entities that had accessed of the UE；The service entities include：SCEF and anchor point
GW；The second network-based control face entity, for obtaining the network switching information of server transmission and adhering in the UE
During or during PDN connections establish, obtain the PDN connectivity request messages that the UE is sent, believed according to the network switching
Breath and PDN connectivity request messages selection service entities are accessed.
Alternatively, the system also includes：The control face entity of first network, for sending the net to the server
Network handover information.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is arranged to storage and used
In the program code for performing following steps：
S1, when user equipment (UE) is moved to the second network by first network, network switching information is sent to described
Two network-based control face entities；Wherein, packet data network PDN types, access point are comprised at least in the network switching information
Service entities mark corresponding to the service entities that title APN and the UE had been accessed, the network switching information are used
The service entities of access are selected by the second network-based control face entity in instruction, the service entities include：SCEF and anchor
Point GW.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：
S2, receive the network switching information that first network control face entity is sent.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is arranged to storage and used
In the program code for performing following steps：
S1, when user equipment (UE) is moved to the second network by first network, obtain the network switching letter that server is sent
Breath；
S2, in the UE attaching process or during PDN connections foundation, obtain the PDN connection requests that the UE is sent
Information；
S3, according to the network switching information and the PDN connectivity request messages, service entities are selected to be accessed；
By the present invention, due to utilizing in network switching process, PDN types are carried in the information sent to MME,
Identified corresponding to APN and the service entities that accessed, HHS upon receiving this information, using the information access with before switching
Network service entity accesses, and therefore, can solve select originally to make caused by UE uses identical APN in correlation technique
Service entities and the problem of cause data outage or business continuance not to ensure, and then UE is using identical
During APN, ensure the successional effect of business datum.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of 4G networks and the Organization Chart of 5G network interworkings in correlation technique；
Fig. 2 is that UE is realizing the flow chart of network switching in correlation technique；
Fig. 3 is a kind of flow chart of method for switching network according to embodiments of the present invention；
Fig. 4 is a kind of flow chart of method for switching network according to embodiments of the present invention；
Fig. 5 is a kind of flow chart of UE according to embodiments of the present invention by 4G network switchings to 5G networks；
Fig. 6 is a kind of flow chart of UE according to embodiments of the present invention by 5G network switchings to 4G networks；
Fig. 7 is a kind of structure chart of network switching device according to embodiments of the present invention；
Fig. 8 is a kind of structure chart of network switching device according to embodiments of the present invention；
Fig. 9 is a kind of structure chart of network switching system according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
Embodiment 1
A kind of method for switching network for running on the network architecture shown in Fig. 1 is provided in the present embodiment,
It is pointed out that switchings of the UE between 4G networks and 5G networks can be realized in the present embodiment, i.e., when first
When network is 4G networks, the second network is 5G networks, and when the second network is 5G networks, first network is 4G networks.Certainly, originally
It can also be realized in embodiment applied to the switching between in other network systems, such as cutting between 5G networks and 3G network
Change.Certain 2G networks, wireless fidelity network are equally applicable.Therefore, the above-mentioned thinking of any technology, for realizing network switching
Network should be considered as within the protection domain of the present embodiment.
Fig. 3 is a kind of flow chart of method for switching network according to embodiments of the present invention, as shown in figure 3, the flow includes
Following steps：
Step S302, when user equipment (UE) is moved to the second network by first network, by network switching information send to
The second network-based control face entity；
Wherein, in the network switching information comprise at least packet data network PDN types, APN APN and
Service entities mark corresponding to the service entities that the UE had been accessed, the network switching information are used to indicate by described
The service entities of second network-based control face entity selection access, the service entities include：SCEF and anchor point GW.
Specifically, the PDN types comprise at least：IP types and non-IP types.Wherein, IP types include：IPv4、IPv6
And IPv4v6.
Alternatively, the APN in network switching information and PDN is used to determine the specified services entity mark in service entities mark
Know, the designated entities are identified for indicating the second network-based control face entity access clothes corresponding with the specified services entity identification
Entity.
Alternatively, the network switching information is being sent to before second network control face entity, is receiving first
The network switching information that network control face entity is sent in attaching process or during PDN connections foundation.
By above-mentioned steps, can solve select originally to make caused by UE uses identical APN in correlation technique
Service entities and the problem of cause data outage or business continuance not to ensure, and then UE is using identical
During APN, ensure the successional effect of business datum.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme substantially or is said to existing skill
The part that art contributes can be embodied in the form of software product, and the computer software product is stored in a storage and is situated between
In matter (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, computer,
Server, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiment 2
A kind of method for network access for running on the network architecture shown in Fig. 1 is provided in the present embodiment,
It is pointed out that switchings of the UE between 4G networks and 5G networks can be realized in the present embodiment, i.e., when first
When network is 4G networks, the second network is 5G networks, and when the second network is 5G networks, first network is 4G networks.Certainly, originally
It can also be realized in embodiment applied to the switching between in other network systems, such as cutting between 5G networks and 3G network
Change.Certain 2G networks, wireless fidelity network are equally applicable.Therefore, the above-mentioned thinking of any technology, for realizing network switching
Network should be considered as within the protection domain of the present embodiment.
Fig. 4 is a kind of flow chart of method for switching network according to embodiments of the present invention, as shown in figure 4, the flow includes
Following steps：
Step S402, when user equipment (UE) is moved to the second network by first network, obtain the network that server is sent
Handover information；
Step S404, in the UE attaching process or during PDN connections foundation, obtain the PDN that the UE is sent and connect
Connect solicited message；
Step S406, according to the network switching information and the PDN connectivity request messages, service entities are selected to be connect
Enter；
Wherein, in the network switching information comprise at least packet data network PDN types, APN APN and
Service entities mark corresponding to the service entities that the UE had been accessed, the PDN connectivity request messages comprise at least：Institute
PDN types, the APN are stated, the network switching information and PDN connectivity request messages are used to indicate by second network
The service entities of chain of command entity selection access, the service entities include：SCEF and anchor point GW.
Alternatively, the PDN types, the APN and the network switching in the PDN connectivity request messages
The PDN types in information, the APN determine the service entities mark corresponding to the service entities that the UE had been accessed
In specified services entity identification, and access service entities corresponding to the specified services entity identification.
Alternatively, the server comprises at least：Home signature user server HSS.
HSS includes identifying PGW corresponding to the PDN of IP types service entities to the network switching information that MME is sent
ID, while also include the service entities mark SCEF ID corresponding to the PDN of non-IP types.Central UE is in IDLE in 4G networks
State, when then sending attach request by MME into 5G networks, UE can also be sent to MME APN corresponding to the attach request with
And the IP types in PDN types.MME is compared after two kinds of information are received, because the PDN of IP types corresponds to PGW ID,
Therefore, MME selection PGW ID can be accessed from service entities mark, rather than SCEF ID.
In addition, in the present invention, the scene based on above-mentioned two embodiment is additionally provided, in order to understand in the present embodiment
The technical scheme of record.
Scene 1：
For UE from 4G network switchings to 5G networks, Fig. 5 is a kind of UE according to embodiments of the present invention by 4G network switchings to 5G
The flow chart of network.As shown in Figure 5：
Step 501；UE sends Attach Request message to MME, and GUTI or IMSI is carried in Attach Request message；Taken in message
With PDN connection requests, APN is carried in PDN connection request messages, PDN types, is initially accessed instruction；PDN types include IPv4,
IP v6, IPv4v6, non-IP (non-IP)；
Step 502, if carrying GUTI in step 301, MME needs to obtain user IMSI, MME to HSS hairs by GUTI
Location update request message is sent, user IMSI, MME addresses are carried in message
Step 503, HSS carries the subscription data of user to MME home position confirmation messages in message, including default
APN, default QoS；
Step 504, MME selects grappling GW to be serviced for it according to PDN types in step 301 and APN, if PDN types
It is non-IP types, then MME can also select SCEF to come for its service；If without carrying APN in step 301 message, then
MME selects default APN to be serviced for it, and selects PGW or SCEF according to default APN.If that MME selections is PGW, MME to
PGW, which is sent, establishes conversation request message, and user's IMSI, PDN type is carried in message, carries ID, tunnel ID；If MME is selected
SCEF, MME are sent to SCEF and establish SCEF connection request messages, and IMSI, PDN types, MME marks are carried in message.
Step 505, PGW is returned to MME and is established conversational response message, and up PGW tunnels ID is carried in message；SCEF to
MME is returned and is established SCEF connection response messages；
Step 506, MME sends attachment received message to UE, and activation Default Bearer Request message is also carried in NAS message,
Activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 507, UE returns to attachment completion message to MME, and activation default bearer received message is carried in message；
Step 508, it is contemplated that UE can be moved to 5G systems, and MME sends notification request message to HSS, carried in message
Service entities identify (PGW ID or SCEF ID), and APN, PDN types, wherein PDN types include IP types or non-IP types, IP
Type may further include IPv4, IPv6 or IPv4v6；
Step 509, HSS returns to notification acknowledgement to MME.
Step 510, UE enters Idle state in 4G networks, and notice RAT selections and cell selection can choose 5G networks
Accessed, UE sends Attach Request message to 5G CP, and the GUTI distributed in 4G systems is carried in Attach Request message；Message
Middle carrying PDN connection requests, APN, PDN types, switching access instruction are carried in PDN connection request messages；PDN types include
IPv4, IP v6, IPv4v6, non-IP (non-IP)；
Step 511,5G CP need to send location update request message to HSS by GUTI acquisition user IMSI, 5G CP,
User IMSI, 5G CP addresses are carried in message
Step 512, HSS carries the subscription data of user to 5G CP home position confirmation messages in message, including default
APN, default QoS；The service entities mark that UE has been accessed, APN, PDN types are also carried in message；
Step 513, MME indicates that MME obtains from HSS in PDN types and step 512 according to APN in step 510, switching
APN, PDN type select the service entities that have been accessed in step 512 to identify, to determine by PGW or SCEF as its clothes
Business, if that MME selections is PGW, MME is sent to PGW and establishes conversation request message, and user's IMSI, PDN class is carried in message
Type, carry ID, tunnel ID；If MME have selected SCEF, MME sends to SCEF and establishes SCEF connection request messages, taken in message
Band IMSI, carry ID, PDN types, MME marks.
Step 514, PGW is returned to MME and is established conversational response message, and up PGW tunnels ID is carried in message；SCEF to
MME is returned and is established SCEF connection response messages；
Step 515, MME sends attachment received message to UE, and activation Default Bearer Request message is also carried in NAS message,
Activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 516, UE returns to attachment completion message to MME, and activation default bearer received message is carried in message；
Scene 1：
For UE from 4G network switchings to 5G networks, Fig. 6 is a kind of UE according to embodiments of the present invention by 5G network switchings to 4G
The flow chart of network.As shown in Figure 6：
Step 601；UE sends Attach Request message to 5G CP, and GUTI or IMSI is carried in Attach Request message；In message
PDN connection requests are carried, APN is carried in PDN connection request messages, PDN types, is initially accessed instruction；PDN types include
IPv4, IP v6, IPv4v6, non-IP (non-IP)；
Step 602, if carrying GUTI in step 401,5G CP need by GUTI obtain user IMSI, 5G CP to
HSS sends location update request message, and user IMSI, 5G CP addresses are carried in message
Step 603, HSS carries the subscription data of user to 5G CP home position confirmation messages in message, including default
APN, default QoS；
Step 604,5G CP select grappling GW to be serviced for it according to PDN types in step 401 and APN, if PDN classes
Type is non-IP types, then 5G CP can also select SCEF to come for its service；If no in step 401 message carry APN,
So 5G CP select default APN to be serviced for it, and select grappling GW or SCEF according to default APN.If 5G CP selections
It is grappling GW, 5G CP are sent to grappling GW and establish conversation request message, and user's IMSI, PDN type is carried in message, carry ID,
Tunnel ID；If 5G CP have selected SCEF, 5G CP send to SCEF and establish SCEF connection request messages, carried in message
IMSI, PDN type, 5G CP marks.
Step 605, PGW is returned to 5G CP and is established conversational response message, and up PGW tunnels ID is carried in message；Or SCEF
Returned to 5G CP and establish SCEF connection response messages；
Step 606,5G CP send attachment received message to UE, and also carrying activation Default Bearer Request in NAS message disappears
Breath, activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 607, UE returns to attachment completion message to 5G CP, and activation default bearer received message is carried in message；
Step 608, it is contemplated that UE can be moved to 4G systems, and 5G CP send notification request message to HSS, taken in message
Band service entities mark (PGW ID or SCEF ID), APN, wherein PDN types, PDN types include IP types or non-IP types,
IP types may further include IPv4, IPv6 or IPv4v6；
Step 609, HSS returns to notification acknowledgement to 5G CP.
Step 610, UE enters Idle state in 5G networks, and notice RAT selections and cell selection can choose 4G networks
Accessed, UE sends Attach Request message to 5G CP, and the GUTI distributed in 5G systems is carried in Attach Request message；Message
Middle carrying PDN connection requests, APN, PDN types, switching access instruction are carried in PDN connection request messages；PDN types include
IPv4, IP v6, IPv4v6, non-IP (non-IP)；
Step 611, MME needs to obtain user IMSI, MME to HSS transmission location update request messages, message by GUTI
Middle carrying user IMSI, MME addresses
Step 612, HSS carries the subscription data of user to MME home position confirmation messages in message, including default
APN, default QoS；Grappling GW/SCEF ID, APN, the PDN types that UE has been accessed also are carried in message；
Step 613, MME indicates that MME obtains from HSS in PDN types and step 612 according to APN in step 610, switching
APN, PDN type select the service entities that have been accessed in step 612 to identify, to determine by PGW or SCEF as its clothes
Business, if that MME selections is PGW, MME is sent to PGW and establishes conversation request message, and user's IMSI, PDN class is carried in message
Type, carry ID, tunnel ID；If MME have selected SCEF, MME sends to SCEF and establishes SCEF connection request messages, taken in message
Band IMSI, carry ID, PDN types, MME marks.
Step 614, PGW is returned to MME and is established conversational response message, and up PGW tunnels ID is carried in message；SCEF to
MME is returned and is established SCEF connection response messages；
Step 615, MME sends attachment received message to UE, and activation Default Bearer Request message is also carried in NAS message,
Activate and carrying ID, carrying QoS etc. are carried in Default Bearer Request message；
Step 616, UE returns to attachment completion message to MME, and activation default bearer received message is carried in message；
Embodiment 3
A kind of network switching device is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred reality
Mode is applied, had carried out repeating no more for explanation.As used below, term " module " can realize the soft of predetermined function
The combination of part and/or hardware.Although device described by following examples is preferably realized with software, hardware, or soft
The realization of the combination of part and hardware is also what may and be contemplated.
Fig. 7 is a kind of structure chart of network switching device according to embodiments of the present invention, as shown in fig. 7, the device includes：
Sending module 72, for when user equipment (UE) is moved to the second network by first network, by network switching information
Send to the second network-based control face entity；
Wherein, in the network switching information comprise at least packet data network PDN types, APN APN and
Service entities mark corresponding to the service entities that the UE had been accessed, the network switching information are used to indicate by described
The service entities of second network-based control face entity selection access, the service entities include：SCEF and anchor point GW.
Alternatively, the PDN types and APN are used to determine to specify service entities mark in the service entities mark,
The specified services entity identification is used to indicate that the second network-based control face entity accesses the specified services entity identification
Corresponding service entities.
Alternatively, above-mentioned network switching device also includes：Receiving module, sent for receiving first network control face entity
Network switching information.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned modules are with any group
The form of conjunction is located in different processors respectively.
Embodiment 4
A kind of network access device is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred reality
Mode is applied, had carried out repeating no more for explanation.As used below, term " module " can realize the soft of predetermined function
The combination of part and/or hardware.Although device described by following examples is preferably realized with software, hardware, or soft
The realization of the combination of part and hardware is also what may and be contemplated.
Fig. 8 is a kind of structure chart of network switching device according to embodiments of the present invention, as shown in figure 8, the device includes：
First acquisition module 82, the second acquisition module 84 and AM access module 86.
First acquisition module 82, for when user equipment (UE) is moved to the second network by first network, obtaining server
The network switching information of transmission；
Second acquisition module 84, in the UE attaching process or during PDN connections foundation, obtaining the UE hairs
The PDN connectivity request messages sent；
AM access module 86, for according to the network switching information and the PDN connectivity request messages, selecting service entities
Accessed；
Wherein, in the network switching information comprise at least packet data network PDN types, APN APN and
Service entities mark corresponding to the service entities that the UE had been accessed, the PDN connectivity request messages comprise at least：Institute
PDN types, the APN are stated, the network switching information and PDN connectivity request messages are used to indicate by second network
The service entities of chain of command entity selection access, the service entities include：SCEF and anchor point GW.
Alternatively, the AM access module 86 is additionally operable to, and is used to determine that the service is real by the PDN types and APN
Service entities mark is specified in body mark, the specified services entity identification is used to indicate the second network-based control face entity
Access service entities corresponding to the specified services entity identification.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned modules are with any group
The form of conjunction is located in different processors respectively.
Embodiment 5
Fig. 9 is a kind of structure chart of network switching system according to embodiments of the present invention, as shown in figure 9, the system includes：
The network-based control face entity 94 of server 92 and second.
Server 92, for when user equipment (UE) is moved to the second network by first network, network switching information to be sent out
Deliver to the second network-based control face entity 94；Wherein, packet data network PDN is comprised at least in the network switching information
Service entities mark corresponding to the service entities that type, APN APN and the UE had been accessed；The service
Entity includes：SCEF and anchor point GW；
The second network-based control face entity 94, for obtaining the network switching information of the transmission of server 92 and in institute
State in UE attaching process or during PDN connections establish, the PDN connectivity request messages that the UE is sent are obtained, according to the net
Network handover information and PDN connectivity request messages selection service entities are accessed.
Alternatively, said system also includes：The control face entity of first network, for sending the net to the server
Network handover information.
Embodiment 6
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
S1, when user equipment (UE) is moved to the second network by first network, network switching information is sent to described
Two network-based control face entities；Wherein, packet data network PDN types, access point are comprised at least in the network switching information
Service entities mark corresponding to the service entities that title APN and the UE had been accessed, the network switching information are used
The service entities of access are selected by the second network-based control face entity in instruction, the service entities include：SCEF and anchor
Point GW.
Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：
S2, receive the network switching information that first network control face entity is sent.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Embodiment 7
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
S1, when user equipment (UE) is moved to the second network by first network, obtain the network switching letter that server is sent
Breath；
S2, in the UE attaching process or during PDN connections foundation, obtain the PDN connection requests that the UE is sent
Information；
S3, according to the network switching information and the PDN connectivity request messages, service entities are selected to be accessed；
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in what multiple computing devices were formed
On network, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to be stored in
Performed in storage device by computing device, and in some cases, can be with different from shown by order execution herein
Or the step of description, or they are fabricated to each integrated circuit modules respectively, or by the multiple modules or step system in them
Single integrated circuit module is made to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (16)
- A kind of 1. method for switching network, it is characterised in that including：When user equipment (UE) is moved to the second network by first network, network switching information is sent to second network Control face entity；Wherein, packet data network PDN types, APN APN and described are comprised at least in the network switching information Service entities mark corresponding to the service entities that UE had been accessed, the network switching information are used to indicate by described second The service entities of network-based control face entity selection access, the service entities include：SCEF or anchor point GW.
- 2. according to the method for claim 1, it is characterised in that the PDN types and APN are used to determine that the service is real Service entities mark is specified in body mark, the specified services entity identification is used to indicate the second network-based control face entity Access service entities corresponding to the specified services entity identification.
- 3. according to the method for claim 1, it is characterised in that sent by the network switching information to second net Before network control face entity, methods described also includes：Receive the network switching information that first network control face entity is sent.
- 4. according to the method described in any one of claims 1 to 3, it is characterised in that the PDN types are comprised at least with lower class Type：IP types and non-IP types；The IP types include at least one of：IPv4, IPv6 or IPv4v6.
- 5. according to the method described in any one of claims 1 to 3, it is characterised in that when the first network is 4G networks, institute It is 5G networks to state the second network；When the first network is the 5G networks, second network is the 4G networks.
- 6. according to the method described in any one of claims 1 to 3, it is characterised in that the control face entity of the first network is extremely Include less：The control face entity in mobile controlled entity MME or 5G systems in 4G systems, the second network-based control face are real Body comprises at least：The control face entity in mobile controlled entity MME or 5G systems in 4G systems.
- A kind of 7. method for network access, it is characterised in that including：When user equipment (UE) is moved to the second network by first network, the network switching information that server is sent is obtained；In the UE attaching process or during PDN connections foundation, the PDN connectivity request messages that the UE is sent are obtained；According to the network switching information and the PDN connectivity request messages, service entities are selected to be accessed；Wherein, packet data network PDN types, APN APN and described are comprised at least in the network switching information Service entities mark corresponding to the service entities that UE had been accessed, the PDN connectivity request messages comprise at least：It is described PDN types, the APN, the network switching information and PDN connectivity request messages are used to indicate the control by second network The service entities of face entity selection access processed, the service entities include：SCEF or anchor point GW.
- 8. according to the method for claim 7, it is characterised in that according to the network switching information, select the service real Body is accessed, in addition to：The institute in the PDN types, the APN and the network switching information in the PDN connectivity request messages State PDN types, the APN determine corresponding to the service entities that the UE had been accessed service entities mark in specified clothes Entity identifies, and accesses service entities corresponding to the specified services entity identification.
- 9. according to the method for claim 1, it is characterised in that the server comprises at least：Home signature user service Device HSS.
- A kind of 10. network switching device, it is characterised in that including：Sending module, for when user equipment (UE) is moved to the second network by first network, by network switching information send to The second network-based control face entity；Wherein, packet data network PDN types, APN APN and described are comprised at least in the network switching information Service entities mark corresponding to the service entities that UE had been accessed, the network switching information are used to indicate by described second The service entities of network-based control face entity selection access, the service entities include：SCEF or anchor point GW.
- 11. device according to claim 10, it is characterised in that the PDN types and APN are used to determine the service Service entities mark is specified in entity identification, the specified services entity identification is used to indicate that the second network-based control face is real Body accesses service entities corresponding to the specified services entity identification.
- 12. device according to claim 10, it is characterised in that described device also includes：Receiving module, the network switching information sent for receiving first network control face entity.
- A kind of 13. network access device, it is characterised in that including：First acquisition module, for when user equipment (UE) is moved to the second network by first network, obtaining what server was sent Network switching information；Second acquisition module, in the UE attaching process or during PDN connections foundation, obtaining what the UE was sent PDN connectivity request messages；AM access module, for according to the network switching information and the PDN connectivity request messages, selecting service entities to be connect Enter；Wherein, packet data network PDN types, APN APN and described are comprised at least in the network switching information Service entities mark corresponding to the service entities that UE had been accessed, the PDN connectivity request messages comprise at least：It is described PDN types, the APN, the network switching information and PDN connectivity request messages are used to indicate the control by second network The service entities of face entity selection access processed, the service entities include：SCEF or anchor point GW.
- 14. device according to claim 13, it is characterised in that the AM access module is additionally operable to, and passes through the PDN types And APN is used to determine to specify service entities mark in the service entities mark, the specified services entity identification is used to refer to Show that the second network-based control face entity accesses service entities corresponding to the specified services entity identification.
- 15. a kind of network switching system, it is characterised in that the system includes：Server, for when user equipment (UE) is moved to the second network by first network, network switching information to be sent to institute State the second network-based control face entity；Wherein, packet data network PDN types are comprised at least in the network switching information, are connect Service entities mark corresponding to the service entities that access point title APN and the UE had been accessed；The service entities bag Include：SCEF or anchor point GW；The second network-based control face entity, for obtaining the network switching information of server transmission and adhering in the UE During or during PDN connections establish, obtain the PDN connectivity request messages that the UE is sent, believed according to the network switching Breath and PDN connectivity request messages selection service entities are accessed.
- 16. system according to claim 15, it is characterised in that the system also includes：The control face entity of first network, for sending the network switching information to the server.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879487.4A CN107889175A (en) | 2016-09-30 | 2016-09-30 | Method for switching network, apparatus and system, method for network access and device |
| PCT/CN2017/103504 WO2018059401A1 (en) | 2016-09-30 | 2017-09-26 | Network switching method, device and system, and network access method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879487.4A CN107889175A (en) | 2016-09-30 | 2016-09-30 | Method for switching network, apparatus and system, method for network access and device |
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| Publication Number | Publication Date |
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| CN107889175A true CN107889175A (en) | 2018-04-06 |
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| CN201610879487.4A Withdrawn CN107889175A (en) | 2016-09-30 | 2016-09-30 | Method for switching network, apparatus and system, method for network access and device |
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| WO (1) | WO2018059401A1 (en) |
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Application publication date: 20180406 |