WO2019119236A1 - 网络重定向方法及终端、接入网设备、移动管理设备 - Google Patents
网络重定向方法及终端、接入网设备、移动管理设备 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000008859 change Effects 0.000 claims abstract description 242
- 238000012508 change request Methods 0.000 claims description 49
- 230000004048 modification Effects 0.000 claims description 19
- 238000012986 modification Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
-
- 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
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00222—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between different packet switched [PS] network technologies, e.g. transferring data sessions between LTE and WLAN or LTE and 5G
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/22—Manipulation of transport tunnels
Definitions
- the present invention relates to a wireless communication technology, and in particular, to a network redirection method, a terminal, an access network device, and a mobility management device.
- the User Equipment can access the 5G core network, the Next Generation Core Network (NGCN), through the Next Generation-Radio Access Network (NG-RAN).
- the Evolved Universal Mobile Telecommunication System Territorial Radio Access Network (E-UTRAN) can also be used to access the 4G core network, the Evolved Packet Core Network (EPC).
- the NG-RAN may include two types of access network devices, one type of access network device is a 5G base station, that is, a gNB, and the other type of access network device is a 4G base station, that is, an eNB.
- AMF Access and Mobility Management Function
- MME Mobility Management Entity
- the N26 interface is completely dependent on the network change between the NGCN and the EPC, in some cases, for example, if there is no N26 interface or the N26 interface fails, the network change between the NGCN and the EPC cannot be implemented, resulting in The reliability of the network change between NGCN and EPC is reduced. The same problem exists with network changes between other different types of core networks.
- aspects of the present invention provide a network redirection method and a terminal, an access network device, and a mobility management device, to improve reliability of network changes between different types of core networks.
- An aspect of the present invention provides a network redirection method, including:
- the terminal learns the core network type of the redirected target core network according to the network change indication information
- the terminal accesses the target core network according to the core network type.
- Another aspect of the present invention provides another network redirection method, including:
- the access network device sends the network change indication information for the redirection to the terminal, so that the terminal obtains the core network type of the redirected target core network according to the network change indication information, and according to the core network type, Access to the target core network.
- Another aspect of the present invention provides another network redirection method, including:
- the mobility management device sends network change request information for changing the network to the access network device, so that the access network device sends network change indication information for redirection to the terminal, where the terminal changes according to the network. Instructing information, knowing a core network type of the redirected target core network, and accessing the target core network according to the core network type.
- a terminal including:
- a receiving unit configured to receive network change indication information for redirection sent by the access network device
- a learning unit configured to learn, according to the network change indication information, a core network type of the redirected target core network
- An access unit configured to access the target core network according to the core network type.
- Another aspect of the present invention provides an access network device, including:
- a sending unit configured to send network change indication information for redirection to the terminal, where the terminal obtains, according to the network change indication information, a core network type of the redirected target core network, and according to the core network type Accessing the target core network.
- a mobility management device including:
- a sending unit configured to send, to the access network device, network change request information for changing a network, so that the access network device sends, to the terminal, network change indication information for redirection, by the terminal according to the The network changes the indication information, learns the core network type of the redirected target core network, and accesses the target core network according to the core network type.
- the embodiment of the present invention sends the network change indication information for redirection to the terminal by using the access network device, to instruct the terminal to learn the core network of the redirected target core network according to the network change indication information.
- Type and then accessing the target core network according to the core network type, without relying on interfaces between different types of core networks, can implement network changes between different types of core networks, thereby improving different types of core networks. The reliability of the network changes between.
- FIG. 1 is a schematic flowchart of a network redirection method according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of another network redirection method according to another embodiment of the present invention.
- FIG. 3 is a schematic flowchart of another network redirection method according to another embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure.
- FIG. 5 is a schematic structural diagram of an access network device according to another embodiment of the present invention.
- FIG. 5B is a schematic structural diagram of an access network device according to another embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of a mobility management device according to another embodiment of the present invention.
- FIG. 1 is a schematic flowchart of a network redirection method according to an embodiment of the present invention, as shown in FIG. 1 .
- the terminal receives network change indication information for redirection sent by the access network device.
- the terminal learns, according to the network change indication information, a core network type of the redirected target core network.
- the terminal accesses the target core network according to the core network type.
- the core idea of the present invention is that the network change indication information for redirection is sent to the terminal by the access network device to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further Accessing the target core network according to the core network type.
- this embodiment may be applicable to network changes between different types of core networks, for example, a network change from a 5G core network NGCN to a 4G core network EPC, or, for example, from a 4G core network EPC to a 5G core.
- the network of the NGCN network changes. The following is a detailed description in combination with different implementations.
- the network change indication information for the redirection received by the terminal may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the access network device may further receive the network change request information that is sent by the mobility management device and used to change the network.
- the network change request information may be, for example, a network change request message for a voice service or a voice back of an emergency service.
- the network change request information used by the access network device to change the network may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the UE currently accesses the 5G core network NGCN, and the access network device eNB or gNB accessing the NGCN may receive an N2 Request message sent by the AMF, where the N2 Request message is sent.
- the network change request information is carried in the network.
- the UE currently accesses the 4G core network EPC, and the access network device eNB accessing the EPC may receive a UE CONTEXT MODIFICATION REQUEST message sent by the MME, where The UE CONTEXT MODIFICATION REQUEST message carries the network change request information.
- the terminal may specifically receive a radio resource control (RRC) connection release (RRC Connection Release) sent by the access network device.
- RRC radio resource control
- the message that the network change indication message is carried in the RRC connection release message.
- the network change indication information for example, a Release Cause IE
- the newly added IE carries the network change indication information, which is not specifically limited in this embodiment.
- the terminal may specifically learn the core network type of the redirected target core network according to the network change indication information.
- the terminal may change the target network according to the network change indication, and obtain the target core of the redirect.
- the core network type of the network is a network change indication for indicating whether to change the network.
- the terminal can learn the core of the redirected target core network.
- the network type is 4G core network EPC; if the network change indication received by the terminal indicates that the network is changed to not change the core network, then the terminal can know that the core network type of the redirected target core network is still a 5G core network. NGCN.
- the terminal may obtain the target core of the redirect.
- the core network type of the network is the 5G core network NGCN; if the network change indication received by the terminal indicates that the network is changed to not change the core network, the terminal can learn that the core network type of the redirected target core network is still 4G core network EPC.
- the terminal may obtain a weight according to the target core network identifier.
- the core network type of the targeted target core network is a target core network identifier
- the terminal may The core network type of the target core network that is known to be redirected is the 4G core network EPC; if the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is the 5G core network NGCN, then the terminal It can be known that the core network type of the redirected target core network is still the 5G core network NGCN.
- the core network currently accessed by the terminal is a 4G core network EPC
- the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is a 5G core network NGCN
- the terminal can learn that the core network type of the redirected target core network is the 5G core network NGCN; if the target core network identifier received by the terminal is redirected, the core network type of the target core network is the 4G core network EPC, then The terminal can know that the core network type of the target core network that is redirected is still the 4G core network EPC.
- the terminal may specifically send, to the redirected target access network device, a core network that is used to indicate a core network type of the target core network.
- the type indication information is used by the terminal to access the target core network through the target access network device.
- the determining and selecting of the redirected target access network device may be performed by using the existing technical solution and indicating to the terminal, which is not specifically limited in this embodiment.
- the terminal may send an RRC Connection Request message to the target access network device, where the RRC connection request message carries the core network type indication information.
- the core network type indication information may be a core network type indication, or may be a non-access stratum (NAS) capability of the 5G core network, which is not specifically limited in this embodiment. .
- NAS non-access stratum
- the core network type indication is used to indicate a core network type of the redirected target core network, and may be specifically included in a Message5 message or a Message3 message.
- 1 bit can be used as the core network type indication, 1 means 5G core network NGCN, 0 means 4G core network EPC, or 0 means 5G core network NGCN, 1 means 4G core network EPC.
- the NAS capability is used to indicate a core network type of the redirected target core network.
- the carrying capacity of the NAS is used to indicate that the 5G core network NGCN does not carry the NAS capability, and the core network type is represented by default, and is used to represent the 4G core network EPC.
- the target access network device may perform a core network access procedure of the target core network that is redirected by the core network type indication information.
- the target access network device can execute the 4G core network EPC. Core network access process.
- the target access network device can execute the 5G core.
- the core network access process of the network NGCN can execute the 5G core.
- the network change indication information for redirection is sent to the terminal by the access network device, to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further
- the core network type, accessing the target core network can implement network changes between different types of core networks without relying on interfaces between different types of core networks, thereby improving network changes between different types of core networks. reliability.
- FIG. 2 is a schematic flowchart of another network redirection method according to another embodiment of the present invention, as shown in FIG. 2 .
- the access network device sends the network change indication information for the redirection to the terminal, so that the terminal obtains the core network type of the redirected target core network according to the network change indication information, and according to the core network.
- Type access to the target core network.
- the core idea of the present invention is that the network change indication information for redirection is sent to the terminal by the access network device to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further Accessing the target core network according to the core network type.
- this embodiment may be applicable to network changes between different types of core networks, for example, a network change from a 5G core network NGCN to a 4G core network EPC, or, for example, from a 4G core network EPC to a 5G core.
- the network of the NGCN network changes. The following is a detailed description in combination with different implementations.
- the network change indication information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the access network device may further receive network change request information sent by the mobility management device for changing the network.
- the network change request information may be, for example, a network change request message for a voice service or a voice back of an emergency service.
- the network change request information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the UE currently accesses the 5G core network NGCN, and the access network device eNB or gNB accessing the NGCN may receive an N2 Request message sent by the AMF, where the N2 Request message is sent.
- the network change request information is carried in the network.
- the UE currently accesses the 4G core network EPC, and the access network device eNB accessing the EPC may receive a UE CONTEXT MODIFICATION REQUEST message sent by the MME, where The UE CONTEXT MODIFICATION REQUEST message carries the network change request information.
- the access network device may send an RRC Connection Release message to the terminal, where the RRC connection release message is sent. Carrying the network change indication information.
- the network change indication information for example, a Release Cause IE
- the newly added IE carries the network change indication information, which is not specifically limited in this embodiment.
- the terminal may obtain the core network type of the redirected target core network according to the network change indication information.
- the terminal may change the network according to the network change indication to obtain the core network type of the redirected target core network.
- the terminal can learn the core of the redirected target core network.
- the network type is 4G core network EPC; if the network change indication received by the terminal indicates that the network is changed to not change the core network, then the terminal can know that the core network type of the redirected target core network is still a 5G core network. NGCN.
- the terminal may obtain the target core of the redirect.
- the core network type of the network is the 5G core network NGCN; if the network change indication received by the terminal indicates that the network is changed to not change the core network, the terminal can learn that the core network type of the redirected target core network is still 4G core network EPC.
- the terminal may obtain a weight according to the target core network identifier.
- the core network type of the targeted target core network is a target core network identifier
- the terminal may The core network type of the target core network that is known to be redirected is the 4G core network EPC; if the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is the 5G core network NGCN, then the terminal It can be known that the core network type of the redirected target core network is still the 5G core network NGCN.
- the core network currently accessed by the terminal is a 4G core network EPC
- the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is a 5G core network NGCN
- the terminal can learn that the core network type of the redirected target core network is the 5G core network NGCN; if the target core network identifier received by the terminal is redirected, the core network type of the target core network is the 4G core network EPC, then The terminal can know that the core network type of the target core network that is redirected is still the 4G core network EPC.
- the target core network identifier may be used by default to indicate the core network that is currently accessed.
- the target core network may be accessed. Specifically, the core network type indication information for indicating the core network type of the target core network may be sent to the redirected target access network device, where the terminal accesses the target access network device.
- the target core network may be accessed.
- the determining and selecting of the redirected target access network device may be performed by using the existing technical solution and indicating to the terminal, which is not specifically limited in this embodiment.
- the terminal may send an RRC Connection Request message to the target access network device, where the RRC connection request message carries the core network type indication information.
- the core network type indication information may be a core network type indication, or may be a non-access stratum (NAS) capability of the 5G core network, which is not specifically limited in this embodiment. .
- NAS non-access stratum
- the core network type indication is used to indicate the core network type of the redirected target core network, and may be specifically included in a Message5 message or a Message3 message.
- 1 bit can be used as the core network type indication, 1 means 5G core network NGCN, 0 means 4G core network EPC, or 0 means 5G core network NGCN, 1 means 4G core network EPC.
- the NAS capability is used to indicate a core network type of the redirected target core network.
- the carrying capacity of the NAS is used to indicate that the 5G core network NGCN does not carry the NAS capability, and the core network type is represented by default, and is used to represent the 4G core network EPC.
- the target access network device may perform a core network access procedure of the target core network that is redirected by the core network type indication information.
- the target access network device can execute the 4G core network EPC. Core network access process.
- the target access network device can execute the 5G core.
- the core network access process of the network NGCN can execute the 5G core.
- the network change indication information for redirection is sent to the terminal by the access network device, to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further
- the core network type, accessing the target core network can implement network changes between different types of core networks without relying on interfaces between different types of core networks, thereby improving network changes between different types of core networks. reliability.
- FIG. 3 is a schematic flowchart of another network redirection method according to another embodiment of the present invention, as shown in FIG. 3.
- the mobility management device sends network change request information for changing the network to the access network device, so that the access network device sends network change indication information for redirection to the terminal, where the terminal is configured according to the
- the network changes the indication information, learns the core network type of the redirected target core network, and accesses the target core network according to the core network type.
- the core idea of the present invention is that the network change indication information for redirection is sent to the terminal by the access network device to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further Accessing the target core network according to the core network type.
- this embodiment may be applicable to network changes between different types of core networks, for example, a network change from a 5G core network NGCN to a 4G core network EPC, or, for example, from a 4G core network EPC to a 5G core.
- the network of the NGCN network changes. The following is a detailed description in combination with different implementations.
- the network change indication information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the mobility management device may send, by using an existing message, network change request information for changing a network to the access network device. .
- the network change request information may be, for example, a network change request message for a voice service or a voice back of an emergency service.
- the network change request information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the UE currently accesses the 5G core network NGCN, and then the AMF may send an N2 Request message to the access network device eNB or the gNB accessing the NGCN, where the N2 Request message is carried.
- the network changes request information.
- the UE currently accesses the 4G core network EPC, and then the MME may send a UE CONTEXT MODIFICATION REQUEST message to the access network device eNB accessing the EPC, where the UE CONTEXT
- the MODIFICATION REQUEST message carries the network change request information.
- the network change indication information for redirection may be sent to the terminal, where the terminal changes according to the network. Instructing information, knowing a core network type of the redirected target core network, and accessing the target core network according to the core network type.
- the access network device may send an RRC Connection Release message to the terminal, where the RRC connection release message carries the network change indication information.
- the network change indication information for example, a Release Cause IE
- the newly added IE carries the network change indication information, which is not specifically limited in this embodiment.
- the terminal may obtain the core network type of the redirected target core network according to the network change indication information.
- the terminal may change the network according to the network change indication to obtain the core network type of the redirected target core network.
- the terminal can learn the core of the redirected target core network.
- the network type is 4G core network EPC; if the network change indication received by the terminal indicates that the network is changed to not change the core network, then the terminal can know that the core network type of the redirected target core network is still a 5G core network. NGCN.
- the terminal may obtain the target core of the redirect.
- the core network type of the network is the 5G core network NGCN; if the network change indication received by the terminal indicates that the network is changed to not change the core network, the terminal can learn that the core network type of the redirected target core network is still 4G core network EPC.
- the terminal may obtain a weight according to the target core network identifier.
- the core network type of the targeted target core network is a target core network identifier
- the terminal may The core network type of the target core network that is known to be redirected is the 4G core network EPC; if the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is the 5G core network NGCN, then the terminal It can be known that the core network type of the redirected target core network is still the 5G core network NGCN.
- the core network currently accessed by the terminal is a 4G core network EPC
- the core network type of the redirected target core network indicated by the target core network identifier received by the terminal is a 5G core network NGCN
- the terminal can learn that the core network type of the redirected target core network is the 5G core network NGCN; if the target core network identifier received by the terminal is redirected, the core network type of the target core network is the 4G core network EPC, then The terminal can know that the core network type of the target core network that is redirected is still the 4G core network EPC.
- the target core network identifier may be used by default to indicate the core network that is currently accessed.
- the target core network may be accessed. Specifically, the core network type indication information for indicating the core network type of the target core network may be sent to the redirected target access network device, where the terminal accesses the target access network device.
- the target core network may be accessed.
- the determining and selecting of the redirected target access network device may be performed by using the existing technical solution and indicating to the terminal, which is not specifically limited in this embodiment.
- the terminal may send an RRC Connection Request message to the target access network device, where the RRC connection request message carries the core network type indication information.
- the core network type indication information may be a core network type indication, or may be a non-access stratum (NAS) capability of the 5G core network, which is not specifically limited in this embodiment. .
- NAS non-access stratum
- the core network type indication is used to indicate the core network type of the redirected target core network, and may be specifically included in a Message5 message or a Message3 message.
- 1 bit can be used as the core network type indication, 1 means 5G core network NGCN, 0 means 4G core network EPC, or 0 means 5G core network NGCN, 1 means 4G core network EPC.
- the NAS capability is used to indicate a core network type of the redirected target core network.
- the carrying capacity of the NAS is used to indicate that the 5G core network NGCN does not carry the NAS capability, and the core network type is represented by default, and is used to represent the 4G core network EPC.
- the target access network device may perform a core network access procedure of the target core network that is redirected by the core network type indication information.
- the target access network device can execute the 4G core network EPC. Core network access process.
- the target access network device can execute the 5G core.
- the core network access process of the network NGCN can execute the 5G core.
- the network change indication information for redirection is sent to the terminal by the access network device, to instruct the terminal to learn the core network type of the redirected target core network according to the network change indication information, and further
- the core network type, accessing the target core network can implement network changes between different types of core networks without relying on interfaces between different types of core networks, thereby improving network changes between different types of core networks. reliability.
- FIG. 4 is a schematic structural diagram of a terminal according to another embodiment of the present invention, as shown in FIG. 4 .
- the terminal of this embodiment may include a receiving unit 41, a learning unit 42, and an access unit 43.
- the receiving unit 41 is configured to receive network change indication information for redirection sent by the access network device
- the learning unit 42 is configured to learn, according to the network change indication information, a core network type of the redirected target core network.
- the access unit 43 is configured to access the target core network according to the core network type.
- the receiving unit 41 is specifically configured to receive an RRC connection release message sent by the access network device, where the RRC connection release message carries the The network changes the indication information.
- the access unit 43 is specifically configured to send, to the redirected target access network device, a core network type that is used to indicate the target core network.
- the core network type indication information is used by the terminal to access the target core network through the target access network device.
- the access unit 43 may be configured to send an RRC connection request message to the target access network device, where the RRC connection request message carries the core network type indication information.
- the network change indication information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the core network type indication information may be a core network type indication, or may be a non-access stratum (NAS) capability of the 5G core network, which is not specifically limited in this embodiment. .
- NAS non-access stratum
- the core network type indication is used to indicate the core network type of the redirected target core network, and may be specifically included in a Message5 message or a Message3 message. For example, 1 bit can be used as the core network type indication, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the NAS capability is used to indicate a core network type of the redirected target core network.
- the carrying capacity of the NAS is used to indicate that the 5G core network NGCN does not carry the NAS capability, and the core network type is represented by default, and is used to represent the 4G core network EPC.
- FIG. 5 is a schematic structural diagram of an access network device according to another embodiment of the present invention, as shown in FIG. 5A.
- the access network device of this embodiment may include a sending unit 52.
- the sending unit 52 is configured to send network change indication information for redirection to the terminal, where the terminal obtains, according to the network change indication information, a core network type of the redirected target core network, and according to the The core network type accesses the target core network.
- the access network device provided in this embodiment may further include a receiving unit 51, configured to receive, by the mobile management device, Change the network change request information of the network.
- the network change request information may be, for example, a network change request message for a voice service or a voice back of an emergency service.
- the receiving unit 51 may be configured to receive an N2 request message or a UE context modification request message sent by the mobility management device, where the N2 request message or the UE context modification request message is carried in the UE.
- the network change request information may be configured to be received from the mobility management device.
- the sending unit 52 is specifically configured to send an RRC connection release message to the terminal, where the RRC connection release message carries the network change indication information. .
- the network change indication information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the network change request information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the function of the access network device in the embodiment corresponding to FIG. 2 can be implemented by the access network device provided in this embodiment.
- the access network device provided in this embodiment.
- FIG. 6 is a schematic structural diagram of a mobility management device according to another embodiment of the present invention, as shown in FIG. 6.
- the mobility management device of this embodiment may include a sending unit 61, configured to send, to the access network device, network change request information for changing the network, so that the access network device sends a network change indication for redirection to the terminal. And the information is obtained by the terminal, according to the network change indication information, the core network type of the redirected target core network, and accessing the target core network according to the core network type.
- the network change request information may be, for example, a network change request message for a voice service or a voice back of an emergency service.
- the sending unit 61 may be specifically configured to send an N2 request message or a UE context modification request message to the access network device, where the N2 request message or The UE context modification request message carries the network change request information.
- the network change indication information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the network change request information may be a network change indication, or may also be a target core network identifier, which is not specifically limited in this embodiment.
- the network change indication is used to indicate whether to change the core network. For example, 1 bit can be used as the network change indication, 1 means to change the core network, 0 means not to change the core network, or 0 means to change the core network, and 1 means not to change the core network.
- the target core network identifier is used to indicate a core network type of the redirected target core network. For example, 1 bit can be used as the target core network identifier, 1 for the 5G core network NGCN, 0 for the 4G core network EPC, or 0 for the 5G core network NGCN, and 1 for the 4G core network EPC.
- the function of the mobility management device in the embodiment corresponding to FIG. 3 can be implemented by the mobility management device provided in this embodiment.
- the mobility management device provided in this embodiment.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
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Abstract
Description
Claims (37)
- 一种网络重定向方法,其特征在于,包括:终端接收接入网设备发送的用于重定向的网络改变指示信息;所述终端根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型;所述终端根据所述核心网类型,接入所述目标核心网。
- 根据权利要求1所述的方法,其特征在于,所述网络改变请求信息包括网络改变指示或者目标核心网标识。
- 根据权利要求1所述的方法,其特征在于,所述终端接收接入网设备发送的用于重定向的网络改变指示信息,包括:所述终端接收所述接入网设备发送的RRC连接释放消息,所述RRC连接释放消息中携带所述网络改变指示信息。
- 根据权利要求1所述的方法,其特征在于,所述终端根据所述核心网类型,接入所述目标核心网,包括:所述终端向重定向的目标接入网设备发送用于指示所述目标核心网的核心网类型的核心网类型指示信息,以供所述终端通过所述目标接入网设备接入所述目标核心网。
- 根据权利要求4所述的方法,其特征在于,所述终端向重定向的目标接入网设备发送用于指示所述目标核心网的核心网类型的核心网类型指示信息,包括:所述终端向所述目标接入网设备发送RRC连接请求消息,所述RRC连接请求消息中携带所述核心网类型指示信息。
- 根据权利要求4所述的方法,其特征在于,所述核心网类型指示 信息包括核心网类型指示或者NAS能力。
- 根据权利要求1~6任一权利要求所述的方法,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 一种网络重定向方法,其特征在于,包括:接入网设备向终端发送用于重定向的网络改变类型指示信息,以供所述终端根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型,以及根据所述核心网类型,接入所述目标核心网。
- 根据权利要求8所述的方法,其特征在于,所述接入网设备向终端发送用于重定向的网络改变类型指示信息之前,还包括:所述接入网设备接收移动管理设备发送的用于改变网络的网络改变请求信息。
- 根据权利要求9所述的方法,其特征在于,所述网络改变请求信息,用于语音业务或者紧急业务的语音回落。
- 根据权利要求9所述的方法,其特征在于,所述网络改变请求信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 根据权利要求9所述的方法,其特征在于,所述接入网设备接收移动管理设备发送的用于改变网络的网络改变请求信息,包括:所述接入网设备接收所述移动管理设备发送的N2请求消息或者UE上下文修改请求消息,所述N2请求消息或者所述UE上下文修改请求消息中携带所述网络改变请求信息。
- 根据权利要求8所述的方法,其特征在于,所述接入网设备向终端发送用于重定向的网络改变指示信息,包括:所述接入网设备向所述终端发送RRC连接释放消息,所述RRC连接释放消息中携带所述网络改变指示信息。
- 根据权利要求8~13任一权利要求所述的方法,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 一种网络重定向方法,其特征在于,包括:移动管理设备向接入网设备发送用于改变网络的网络改变请求信息,以使得所述接入网设备向终端发送用于重定向的网络改变指示信息,以供所述终端根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型,以及根据所述核心网类型,接入所述目标核心网。
- 根据权利要求15所述的方法,其特征在于,所述网络改变请求信息,用于语音业务或者紧急业务的语音回落。
- 根据权利要求15所述的方法,其特征在于,所述移动管理设备向接入网设备发送用于改变网络的网络改变请求信息,包括:所述移动管理设备向所述接入网设备发送N2请求消息或者UE上下文修改请求消息,所述N2请求消息或者所述UE上下文修改请求消息中携带所述网络改变请求信息。
- 根据权利要求15~17任一权利要求所述的方法,其特征在于,所述网络改变请求信息包括网络改变指示或者目标核心网标识。
- 根据权利要求15~17任一权利要求所述的方法,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 一种终端,其特征在于,包括:接收单元,用于接收接入网设备发送的用于重定向的网络改变指示信息;获知单元,用于根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型;接入单元,用于根据所述核心网类型,接入所述目标核心网。
- 根据权利要求20所述的终端,其特征在于,所述接收单元,具体用于接收所述接入网设备发送的RRC连接释放消息,所述RRC连接释放消息中携带所述网络改变指示信息。
- 根据权利要求20所述的终端,其特征在于,所述接入单元,具体用于向重定向的目标接入网设备发送用于指示所述目标核心网的核心网类型的核心网类型指示信息,以供所述终端通过所述目标接入网设备接入所述目标核心网。
- 根据权利要求22所述的终端,其特征在于,所述接入单元,具体用于向所述目标接入网设备发送RRC连接请求消息,所述RRC连接请求消息中携带所述核心网类型指示信息。
- 根据权利要求23所述的终端,其特征在于,所述核心网类型指示信息包括核心网类型指示或者NAS能力。
- 根据权利要求20~24任一权利要求所述的终端,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 一种接入网设备,其特征在于,包括:发送单元,用于向终端发送用于重定向的网络改变指示信息,以供所述终端根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型,以及根据所述核心网类型,接入所述目标核心网。
- 根据权利要求26所述的接入网设备,其特征在于,所述接入网设备还包括接收单元,用于接收移动管理设备发送的用于改变网络的网络改变请求信息。
- 根据权利要求27所述的接入网设备,其特征在于,所述网络改变命令信息,用于语音业务或者紧急业务的语音回落。
- 根据权利要求27所述的接入网设备,其特征在于,所述网络改变请求信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 根据权利要求27所述的接入网设备,其特征在于,所述接收单元,具体用于接收所述移动管理设备发送的N2请求消息或者UE上下文修改请求消息,所述N2请求消息或者所述UE上下文修改请求消息中携带所述网络改变请求信息。
- 根据权利要求26所述的接入网设备,其特征在于,所述发送单元,具体用于向所述终端发送RRC连接释放消息,所述RRC连接释放消息中携带所述网络改变指示信息。
- 根据权利要求26~31任一权利要求所述的接入网设备,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改 变核心网的网络改变指示。
- 一种移动管理设备,其特征在于,包括:发送单元,用于向接入网设备发送用于改变网络的网络改变请求信息,以使得所述接入网设备向终端发送用于重定向的网络改变指示信息,以供所述终端根据所述网络改变指示信息,获知重定向的目标核心网的核心网类型,以及根据所述核心网类型,接入所述目标核心网。
- 根据权利要求33所述的移动管理设备,其特征在于,所述网络改变请求信息,用于语音业务或者紧急业务的语音回落。
- 根据权利要求33所述的移动管理设备,其特征在于,所述发送单元,具体用于向所述接入网设备发送N2请求消息或者UE上下文修改请求消息,所述N2请求消息或者所述UE上下文修改请求消息中携带所述网络改变请求信息。
- 根据权利要求33~35任一权利要求所述的移动管理设备,其特征在于,所述网络改变请求信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
- 根据权利要求33~35任一权利要求所述的移动管理设备,其特征在于,所述网络改变指示信息包括目标核心网标识或者用于指示是否改变核心网的网络改变指示。
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CN111669796A (zh) | 2020-09-15 |
US20200322858A1 (en) | 2020-10-08 |
KR20200097789A (ko) | 2020-08-19 |
TW201929571A (zh) | 2019-07-16 |
EP3731565A1 (en) | 2020-10-28 |
JP2021513231A (ja) | 2021-05-20 |
US11576097B2 (en) | 2023-02-07 |
CN111165017A (zh) | 2020-05-15 |
EP3731565A4 (en) | 2020-12-30 |
AU2017443403A1 (en) | 2020-08-06 |
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