WO2019223557A1 - Procédé d'accès à un réseau, dispositif associé, et système - Google Patents

Procédé d'accès à un réseau, dispositif associé, et système Download PDF

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Publication number
WO2019223557A1
WO2019223557A1 PCT/CN2019/086411 CN2019086411W WO2019223557A1 WO 2019223557 A1 WO2019223557 A1 WO 2019223557A1 CN 2019086411 W CN2019086411 W CN 2019086411W WO 2019223557 A1 WO2019223557 A1 WO 2019223557A1
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WIPO (PCT)
Prior art keywords
access
home gateway
user equipment
identification information
network element
Prior art date
Application number
PCT/CN2019/086411
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English (en)
Chinese (zh)
Inventor
于游洋
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810672363.8A external-priority patent/CN110519826B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19808381.8A priority Critical patent/EP3817423B1/fr
Publication of WO2019223557A1 publication Critical patent/WO2019223557A1/fr
Priority to US17/100,457 priority patent/US11399331B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a network access method, related devices, and systems.
  • the universal functional design and forward-compatible "access network-core network” interface enables the universal 5G core network (the 5th generation core (5GC)) to work with different access networks.
  • 5GC In addition to supporting radio access network (RAN), 5GC also needs to support fixed network / wired network access, such as 5G residential gateway (5G residential gateway, 5G RG) / customer terminal equipment (CPE) ) Access the 5GC through a wired 5G access network (wireline 5G access network, W-5GAN).
  • 5G residential gateway 5G residential gateway, 5G RG
  • CPE customer terminal equipment
  • a 5GC capable user equipment can access 5GC through a 5G home gateway.
  • the 5GC-capable user equipment is a remote device
  • the 5G home gateway is a relay device.
  • a technical solution is urgently needed to support this access method.
  • the embodiments of the present application provide a network access method, a related device, and a system, which can enable a user equipment (UE) to access the 5GC through a home gateway, so that the 5GC supports more access methods, and improves the integration of the fixed network and the mobile network.
  • UE user equipment
  • the present application provides a network access method applied to a unified data management network element side.
  • the method may include: the unified data management network element receives a request message sent by an access and mobility management function network element, the The request message includes identification information of the user equipment and identification information of the home gateway to which the user equipment is connected.
  • the unified data management network element determines the subscription data of the home gateway according to the identification information of the home gateway, and determines the classification type of the user equipment according to the subscription data of the home gateway and the identification information of the user equipment.
  • the unified data management network element sends the subscription type indication information to the access and mobility management function network element.
  • the type of contract includes the subscribers or non-subscribers of the home gateway.
  • the classification type of the user equipment includes a subscription type.
  • the subscription types include subscribers or non-subscribers of the home gateway.
  • the subscription data of the home gateway may include identification information of user equipment of a subscriber of the home gateway.
  • the unified data management network element determining the subscription type of the user equipment according to the subscription data of the home gateway and the identification information of the user equipment may specifically include: if the identification information of the user equipment belongs to the The identification information of the user equipment of the subscribed user of the home gateway, the unified data management network element determines that the user equipment is a subscribed user of the home gateway.
  • the subscription data may further include indication information of an access type of the home gateway, and the access type indicates whether the home gateway allows non-subscribed users to access .
  • the unified data management network element may determine whether the user equipment is allowed to access the access network device in the following ways:
  • the unified data management network element determines that the user equipment is allowed to access the home gateway. Because, regardless of whether the home gateway is an open type (allowing non-subscribed users to access) or a private type (non-subscribed users are not allowed to access), the contracted users can access.
  • the unified data management network element determines that the user equipment is allowed to access the home gateway.
  • the unified data management network element determines that the user equipment is not allowed to access the home gateway.
  • the subscription data may include a mapping table, and the mapping table includes identification information of multiple UEs and indication information of respective corresponding subscription types of the identification information of the multiple UEs, where the identification information of the multiple UEs may be It includes identification information of the UE of the contracted user, and may also include identification information of the UE of the non-subscribed user. In this way, according to the identification information of the specific UE, a subscription type corresponding to the specific UE can be found from this mapping table.
  • the method described in the first aspect may further include: the unified data management network element sending access instruction information to the access and mobility management function network element.
  • the access instruction information may indicate whether the user equipment is allowed to access the home gateway.
  • the access instruction information may be a security key, so that the W-5GAN can determine that the UE's authentication is successful based on the received security key, and thus determine that the UE is allowed to access.
  • the access instruction information may be an EAP-Success message, so that the 5G-RG can determine that the UE's authentication is successful based on receiving the EAP-success message, and therefore it is determined that the UE is allowed to access.
  • the method described in the first aspect may further include: a unified data management network element sending the subscription data to the access and mobility management function network element, such access
  • the mobility management function network element may also determine the subscription type of the UE and whether the UE is allowed to access the home gateway according to the subscription data.
  • the subscription data of the home gateway stored on the unified data management network element is updated.
  • the access type of the home gateway is changed from an open type to a private type, or the list of contracted users is updated.
  • the unified data management network element may re-determine the subscription type of the user equipment based on the updated subscription data of the home gateway, and re-determine whether the user equipment is allowed to access the home gateway.
  • the unified data management network element may also send the updated subscription data of the home gateway to the access and mobility management network element, and the access and mobility management network element may re-establish the subscription data based on the updated home gateway contract data. Determine the subscription type of the user equipment and whether the user equipment is allowed to access the home gateway.
  • the unified data management network element may send an access update message to the access and mobility management network element according to the identification information of the access and mobility management network element.
  • the access update message is implemented as follows:
  • the access update message may include an access rejection indication.
  • the access update message may include indication information of the updated subscription type of the user equipment to notify the access and mobility management network The meta-adjusts the access model of the user equipment and the service management strategy of the user equipment.
  • the access update message may include at least one of an updated access type of the home gateway and an updated subscription list, and the access and mobility management network element is based on the updated access type of the home gateway And / or the updated subscription user list determines the subscription type of the user equipment and whether the user equipment is allowed to access the home gateway.
  • the access and mobility management network element may send a notification message to the user equipment.
  • the notification message may be used to notify the user equipment of the changed subscription type of the user equipment.
  • the notification message may carry a reselection instruction, which is used to notify the user equipment to reselect the home gateway for access.
  • the UDM can distinguish different access models of the UE to facilitate subsequent different service control, such as different QoS control.
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users.
  • the differentiated service management policies (such as the host policy and the guest policy) performed by the 5GC on the UE, this application is not limited, and can be determined according to the application scenarios supported by 5G or NR.
  • the present application provides a network access method applied to a unified data management network element side.
  • the method may include: the data management network element receives a request message sent by an access and mobility management function network element, the request The message includes identification information of the home gateway to which the user equipment is connected.
  • the data management network element determines the subscription data of the home gateway according to the identification information of the home gateway, and sends the subscription data to the access and mobility management function network element, where the subscription data is used for the mobility
  • the management function network element determines a subscription type of the user equipment.
  • the subscription type includes a contracted user or a non-subscribed user of the home gateway.
  • the present application provides a network access method, which is applied to the access and mobility management function network element side.
  • the method may include: the access and mobility management function network element sends a request to a unified data management network element Message, the request message includes identification information of the user equipment and identification information of the home gateway to which the user equipment is connected.
  • the access and mobility management function network element receives the indication information of the classification type of the user equipment sent by the unified data management network element, and determines whether the user equipment is allowed to access the home gateway and / or the service of the user equipment according to the classification type of the user equipment. Management strategy.
  • the classification type of the user equipment includes a subscription type.
  • the access and mobility management function network element determines whether the user equipment is allowed to access the home gateway according to a subscription type of the user equipment, and may specifically Including: if the subscription type of the user equipment is a subscription user of the home gateway, the access and mobility management function network element determines that the user equipment is allowed to access the home gateway. Because, regardless of whether the home gateway is an open type (allowing non-subscribed users to access) or a private type (non-subscribed users are not allowed to access), the contracted users can access.
  • the access and mobility management function network element determining the service management policy of the user equipment according to a subscription type of the user equipment may specifically include: if the If the subscription type is a non-subscribed user, the access and mobility management function network element determines that the service management policy of the user equipment is a service management policy corresponding to a non-subscribed user; or, if the subscription type is a subscribed user, then The access and mobility management function network element determines that the service management policy of the user equipment is a service management policy corresponding to the subscriber.
  • the method described in the third aspect may further include: the access and mobility management function network element receiving access instruction information sent by the unified data management network element, And / or indication information of a service management policy of the user equipment, and the access instruction information indicates whether the user equipment is allowed to access the home gateway.
  • the method described in the third aspect may further include: the access and mobility management function network element receiving the home gateway sent by the unified data management network element Subscription data, and determining whether the user equipment is allowed to access the home gateway according to the subscription data of the home gateway and identification information of the user equipment.
  • the subscription data of the home gateway may include identification information of user equipment of a subscriber of the home gateway.
  • the subscription data of the home gateway may further include indication information of an access type of the home gateway, and the access type indicates whether the home gateway allows non-subscription User access.
  • the access and mobility management function network element may determine whether the user equipment is allowed to access the access network device in the following ways:
  • the access and mobility management function network element determines that the user equipment is allowed to access the user equipment.
  • Home gateway Because, regardless of whether the home gateway is an open type (allowing non-subscribed users to access) or a private type (non-subscribed users are not allowed to access), the contracted users can access.
  • the access and mobility management function network element determines that the user equipment is allowed to access the home gateway.
  • the access and mobility management function network element determines that the user equipment is not allowed to access the home gateway.
  • the subscription data may include a mapping table, and the mapping table includes identification information of multiple UEs and indication information of respective corresponding subscription types of the identification information of the multiple UEs, where the identification information of the multiple UEs may be It includes identification information of the UE of the contracted user, and may also include identification information of the UE of the non-subscribed user. In this way, according to the identification information of the specific UE, a subscription type corresponding to the specific UE can be found from this mapping table.
  • the method described in the third aspect may further include: the access and mobility management function network element sending access instruction information to an access network device or the home gateway And / or indication information of a service management policy of the user equipment, and the access instruction information indicates whether the user equipment is allowed to access the home gateway.
  • the identification information of the home gateway carried in the request message sent by the access and mobility management function network element is permanent identification information.
  • the method described in the third aspect may further include: the access and mobility management function network element may obtain temporary identification information of the home gateway, and obtain permanent identification information from the context of the home gateway according to the temporary identification information.
  • the access and mobility management function network element may obtain the temporary identification information from a NAS signaling sent by the user equipment. That is, the temporary identification information of the home gateway obtained by the access and mobility management function network element is sent by the user equipment.
  • the access and mobility management function network element may obtain the temporary identification information from a signaling sent by an access network device accessed by the home gateway. That is, the temporary identification information of the home gateway obtained by the access and mobility management function network element is sent by the access network device.
  • the temporary identification information included in the signaling sent by the access network device is sent by the home gateway to the access network device; or, the access network device is based on the IP address or the IP address of the user equipment.
  • the line identifier or VLAN identifier connected to the fixed network gateway or the access point identifier of the user equipment is identified.
  • the AMF can distinguish different access models of the UE to facilitate subsequent different service control, such as different QoS control.
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users.
  • the differentiated service management policies (such as the host policy and the guest policy) performed by the 5GC on the UE, this application is not limited, and can be determined according to the application scenarios supported by 5G or NR.
  • the present application provides a network access method, which is applied to an access and mobility management function network element side, and the method may include: the access and mobility management function network element receives a request sent by an access network device Message, the request message includes identification information of the home gateway.
  • the access and mobility management function network element obtains the subscription data of the home gateway according to the identification information of the home gateway, and determines the classification of the user equipment according to the subscription data of the home gateway and the identification information of the user equipment. Type and / or service management policy of the user equipment.
  • the classification type of the user equipment includes a subscription type.
  • the method described in the fourth aspect may further include: the access and mobility management function network element sending the access network device or the home gateway to the Indication information of a subscription type of the user equipment, and / or indication information of a service management policy of the user equipment.
  • the access and mobility management function network element obtaining the subscription data of the home gateway according to the identification information of the home gateway may specifically include: the access And the mobility management function network element receives the subscription data of the home gateway sent by the unified data management network element according to the identification information of the home gateway.
  • the access and mobility management function network element obtaining the subscription data of the home gateway according to the identification information of the home gateway may specifically include: the access And the mobility management function network element obtains the subscription data of the home gateway from the context of the home gateway according to the identification information of the home gateway.
  • the subscription data of the home gateway may include identification information of user equipment of a subscriber of the home gateway.
  • the access and mobility management function network element determining the subscription type of the user equipment according to the subscription data of the home gateway may specifically include: if the identification information of the user equipment belongs to the subscription of the home gateway Identification information of the user equipment of the user, the access and mobility management function network element determines that the user equipment is a contracted user of the home gateway.
  • the subscription data of the home gateway may further include indication information of an access type of the home gateway, and the access type indicates whether the home gateway allows non-subscription User access.
  • the access and mobility management function network element may determine whether the user equipment is allowed to access the access network device in the following ways:
  • the access and mobility management function network element determines that the user equipment is allowed to access the user equipment.
  • Home gateway Because, regardless of whether the home gateway is an open type (allowing non-subscribed users to access) or a private type (non-subscribed users are not allowed to access), the contracted users can access.
  • the access and mobility management function network element determines that the user equipment is allowed to access the home gateway.
  • the access and mobility management function network element determines that the user equipment is not allowed to access the home gateway.
  • the subscription data may include a mapping table, and the mapping table includes identification information of multiple UEs and indication information of respective corresponding subscription types of the identification information of the multiple UEs, where the identification information of the multiple UEs may be It includes identification information of the UE of the contracted user, and may also include identification information of the UE of the non-subscribed user. In this way, according to the identification information of the specific UE, a subscription type corresponding to the specific UE can be found from this mapping table.
  • the method described in the fourth aspect may further include: the access and mobility management function network element sending an access to the access network device or the home gateway Indication information, and / or indication information of a service management policy of the user equipment.
  • the access instruction information indicates whether the user equipment is allowed to access the home gateway.
  • the identification information of the home gateway included in the request message sent by the access network device is temporary identification information.
  • the method described in the fourth aspect may further include: the access and mobility management function network element obtaining temporary identification information of the home gateway, and determining the contract from the context of the home gateway according to the temporary identification information data.
  • the access and mobility management function network element may obtain the temporary identification information from a NAS signaling sent by the user equipment. That is, the temporary identification information of the home gateway obtained by the access and mobility management function network element is sent by the user equipment.
  • the access and mobility management function network element may obtain the temporary identification information from a signaling sent by an access network device accessed by the home gateway. That is, the temporary identification information of the home gateway obtained by the access and mobility management function network element is sent by the access network device.
  • the temporary identification information included in the signaling sent by the access network device is sent by the home gateway to the access network device; or, the access network device is based on the IP address or the IP address of the user equipment.
  • the line identifier or VLAN identifier connected to the fixed network gateway or the access point identifier of the user equipment is identified.
  • the present application provides a network access method, which is applied to an access network device side, and the method may include: the access network device obtains temporary identification information of a home gateway to which the user device is connected, and sends the access and mobile
  • the sexual management function network element sends a message, the message includes: the temporary identification information of the home gateway and the identification information of the user equipment; the identification information of the user equipment comes from the user equipment.
  • the acquiring, by the access network device, the temporary identification information of the home gateway to which the user equipment is connected may specifically include that the access network device receives all the information sent by the user equipment.
  • the access network device may obtain the temporary identification information from a NAS signaling sent by the user equipment. That is, the temporary identification information of the home gateway obtained by the access network device is sent by the user equipment.
  • the access network device may obtain the temporary identification information from a signaling sent by the home gateway. That is, the temporary identification information of the home gateway obtained by the access network device is sent by the access network device.
  • the temporary identification information may also be the identification of the access network device based on the IP address of the user equipment or the line identification or VLAN identification connected to the fixed network gateway or the access point identification of the user equipment.
  • the present application provides a network access method applied to a user equipment side.
  • the method may include: the user equipment obtains temporary identification information of a home gateway to which the user equipment is connected, and the user equipment sends an access network to the access network
  • the device sends a request message, the request message includes: temporary identification information of the home gateway and identification information of the user equipment.
  • the obtaining, by the user equipment, the temporary identification information of the home gateway to which the user equipment is connected may specifically include that the user equipment receives the home sent by the home gateway. Gateway's temporary identification information.
  • the user equipment can obtain the temporary identification information of the home gateway through an access network query protocol (ANQP) query.
  • ANQP access network query protocol
  • the user equipment may receive an ANQP message or an EAP message sent by the home gateway, and these messages contain temporary identification information of the home gateway.
  • the user equipment may obtain the temporary identification information of the home gateway through an EAP message.
  • the home gateway carries a temporary identity of the home gateway in an EAP message sent to the user equipment.
  • the EAP message may be an EAP-Request / Identity message or an EAP-request / 5G-start message.
  • the present application provides a network access method, which is applied to an access network device side.
  • the method may include: the access network device receives a request message, and the request message includes identification information of a packet data unit PDU session.
  • the access network device sends a response message to a terminal device, where the response message includes an address of the access network device corresponding to the PDU session; the address of the access network device corresponding to the PDU session is used as the terminal The destination address of the user plane data packet of the PDU session sent by the device.
  • the method may further include: storing, by the access network device, identification information of the PDU session and address information of the access network device corresponding to the PDU session. Correspondence.
  • the method may further include: the access network device receiving identification information of the terminal device; and the access network device according to the identification information of the terminal device is The terminal device allocates an address; the access network device sends the address of the terminal device to the terminal device; the address of the terminal device is used as a user plane data packet of the PDU session sent by the terminal device source address.
  • the method may further include: the access network device receiving a user plane data packet of the PDU session sent by the terminal device, in the user plane data packet
  • the included destination address is an address of the access network device corresponding to the PDU session; the access network device identifies the PDU session based on the address information of the access network device corresponding to the PDU session.
  • the present application provides a network access method, which is applied to an access network device side.
  • the method may include: the access network device allocates a user plane address corresponding to the terminal device of the access network device;
  • the network access device sends a user plane address of the access network device to the terminal device, and the user plane address is used as a destination address of a user plane data packet of a PDU session sent by the terminal device.
  • the method may further include: the access network device receiving identification information of the terminal device; and the access network device according to the identification information of the terminal device is The terminal device allocates an address;
  • the access network device sends an address of the terminal device to the terminal device, and the address of the terminal device is used as a source address of a user plane data packet of a PDU session sent by the terminal device.
  • the method may further include: the access network device receiving the user plane data packet sent by the terminal device, and a destination address in the user plane data packet Is the user plane address of the access network device, the user plane data packet further includes identification information of the PDU session; the access network device identifies the PDU session based on the identification information of the PDU session.
  • the present application provides a network access method applied to a terminal device side.
  • the method may include: a user equipment receiving a user plane address of the access network device sent by an access network device; the access The network device sends a user plane data packet of a PDU session to the access network device, and the destination address included in the user plane data packet is the user plane address of the access network device.
  • the method may further include: the user equipment sends identification information of the user equipment to the access network device; and the user equipment receives the access network The address of the user equipment allocated and sent by the device; the source address included in the user plane data packet is the address of the user device.
  • the present application provides a network access method, which is applied to a terminal device side.
  • the method may include: a user equipment receiving an address of the access network device sent by an access network device; and the access network device Sending a user plane data packet of the PDU session to the access network device, the destination address included in the user plane data packet is the address of the access network device, and the user plane data packet further includes the PDU Identification information for the session.
  • the method may further include: the user equipment sends identification information of the user equipment to the access network device; and the user equipment receives the access network The address of the user equipment allocated and sent by the device; the source address included in the user plane data packet is the address of the user device.
  • this application provides a method for sending a service management policy, which is applied to a policy control network element side.
  • the method may include: the policy control network element receives an access and mobility management function network element or a session management network element A first message sent, the first message including information indicating a device type of a user equipment, the policy control network element sending a second message to a session management network element, the second message including the policy control network element based on The service management policy of the user equipment determined by the device type indication information of the user equipment.
  • the service management policy includes a QoS policy and / or a local resource access policy of a home gateway.
  • the service management policy includes: a local resource access policy of a home gateway; the method may further include: the policy controlling a network element to the access and movement The sexual management function network element sends the local resource access policy.
  • the present application provides a network access, which is applied to a home gateway side, and the method may include: the home gateway receives identification information of the user equipment and the user equipment sent by the access and mobility management function network element The home gateway obtains the local resource access policy of the home gateway; the home gateway controls the user according to the device type indication information of the user equipment and the local resource access policy The device accesses local resources.
  • the acquiring, by the home gateway, a local resource access policy of the home gateway may specifically include: the home gateway receiving the access and mobility management function network Element or the local resource access policy of the home gateway sent by the session management network element.
  • the acquiring, by the home gateway, a local resource access policy of the home gateway may specifically include: the home gateway configuring the local resource access policy.
  • the local resource access policy includes address information of a device connected to the home gateway.
  • the method may further include: the home gateway receiving a request message sent by the user equipment, the request message including identification information of the user equipment; the The home gateway controlling the user equipment to access local resources according to the device type indication information of the user equipment and the local resource access policy includes: the home gateway according to the user equipment identification information and the user equipment The device type indication information determines the device type of the user equipment; the home gateway controls the user equipment to access local resources according to the device type of the user equipment and the local resource access policy.
  • this application provides a core network device, including multiple functional units, for correspondingly implementing the first or second aspect or the third or fourth aspect or the eleventh possible implementation manner. Any of the provided methods.
  • the core network device may be implemented as a unified data management network element in the first aspect or the second aspect or the third aspect or the fourth aspect or the eleventh aspect. Access and mobility management network element.
  • the present application provides an access network device, including a plurality of functional units, configured to correspondingly implement any one of the fifth aspect or the seventh aspect or the eighth aspect of the possible implementation manner. method.
  • the present application provides a user equipment, including multiple functional units, for correspondingly executing the method provided in any one of the possible implementation manners of the sixth aspect.
  • the present application provides a terminal device, including multiple functional units, for correspondingly executing the method provided in any one of the possible implementation manners of the ninth aspect or the tenth aspect.
  • this application provides a core network device for performing the network access method described in any one of the first aspect, the second aspect, or the third aspect or the fourth possible implementation manner.
  • the core network device may be implemented as a unified data management network element in the first aspect or the second aspect or the third aspect or the fourth aspect or the eleventh aspect. Access and mobility management network element.
  • the core network device may include a memory, a processor coupled to the memory, and a transceiver, where the transceiver is configured to communicate with other communication devices (such as an access network device).
  • the memory is configured to store implementation code of the network access method described in any one of the first aspect, the second aspect, or the third aspect or the fourth possible implementation manner
  • the processor is configured to execute the program code stored in the memory, That is, the method provided in any one of the possible implementation manners of the first aspect, the second aspect, the third aspect, or the fourth aspect, or the eleventh aspect is performed.
  • this application provides an access network device for performing the network access method described in any one of the possible implementation manners of the fifth aspect.
  • the application server may include a memory, a processor coupled to the memory, and a transceiver, where the transceiver is configured to communicate with other communication devices (such as a core network device and a home gateway).
  • the memory is configured to store the implementation code of the network access method described in any one of the fifth aspect or the seventh aspect or the eighth possible implementation manner
  • the processor is configured to execute the program code stored in the memory, that is, execute the fifth Aspect, or the method provided in any one of the possible aspects of the seventh aspect or the eighth aspect.
  • the present application provides user equipment for performing the network access method described in any one of the possible implementation manners in the sixth aspect.
  • the user equipment may include a memory and a processor and a transceiver coupled to the memory, where the transceiver is used to communicate with other communication devices (such as a home gateway).
  • the memory is configured to store the implementation code of the network access method described in any one of the possible implementation manners of the sixth aspect
  • the processor is configured to execute the program code stored in the memory, that is, execute any of the possible implementation manners in the sixth aspect.
  • the present application provides a terminal device for performing the network access method described in any one of the possible implementation manners in the sixth aspect.
  • the terminal may include a memory and a processor and a transceiver coupled to the memory, where the transceiver is used to communicate with other communication devices (such as a home gateway).
  • the memory is configured to store implementation code of the network access method described in any one of the ninth aspect or the tenth possible implementation manner
  • the processor is configured to execute the program code stored in the memory, that is, execute the ninth aspect or the tenth aspect.
  • the method provided in any of the possible implementations of the aspect.
  • this application provides a communication system.
  • the communication system includes: user equipment, a home gateway, an access network device, and a core network device.
  • the core network device may be the thirteenth aspect or the tenth aspect. Core network equipment described in the seven aspects.
  • the access network device may be the access network device described in the fourteenth aspect or the eighteenth aspect.
  • the user equipment may be the user equipment described in the fifteenth aspect or the nineteenth aspect.
  • the home gateway may be the terminal device described in the sixteenth aspect or the twentieth aspect.
  • the present application provides a computer-readable storage medium having instructions stored on the readable storage medium.
  • the computer-readable storage medium When the computer-readable storage medium is run on a computer, the computer can execute any one of the first to twelfth aspects.
  • Item describes the network access method.
  • the present application provides a computer program product containing instructions that, when run on a computer, causes the computer to execute the network access method described in any one of the first aspect to the twelfth aspect.
  • 1A-1C are schematic architecture diagrams of a wireless communication system involved in this application.
  • FIG. 2 is a schematic flowchart of a network access method provided by the present application.
  • FIG. 3 is a schematic flowchart of another network access method provided by the present application.
  • FIG. 5 is a schematic flowchart of still another network access method provided by the present application.
  • FIG. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present application.
  • FIG. 7 is a schematic architecture diagram of a home gateway according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 9 is a schematic architecture diagram of a core network device according to an embodiment of the present application.
  • FIG. 10 is a functional block diagram of a communication system and related communication devices provided by the present application.
  • FIG. 11 is a schematic flowchart of a method for obtaining identification information of a home gateway provided by a network side provided in this application;
  • FIG. 12 is a schematic flowchart of still another network access method provided by this application.
  • FIG. 13 is a schematic flowchart of a method for issuing a service management policy by a network side provided in this application.
  • FIG. 1A-1C illustrate a system architecture of a communication system involved in the present application.
  • FIG. 1A illustrates a non-roaming system architecture
  • FIG. 1B illustrates a local breakout roaming system architecture
  • FIG. 1C illustrates a home routed roaming system architecture.
  • the system architecture shown in Figures 1A-1C not only supports the wireless access technologies (such as LTE, 5G RAN, next generation (NG), etc.) defined by the 3GPP standard group to access the core network (CN), In addition, it supports non-3GPP (non-3GPP) access technology to access the core network through non-3GPP conversion function (non-3GPP interworking function, N3IWF) or next generation access gateway (next generation packet data gateway, ngPDG).
  • the system architecture also supports fixed network / wired network access, such as 5G Home Gateway (5GRG) / CPE access to the core network through a wired 5G access network (W-5GAN).
  • 5G Home Gateway 5G Home Gateway
  • W-5GAN wired 5G access network
  • 5G home gateway is connected to the 5GC through a wired 5G access network
  • a 5GC capable user equipment 5GC capable UE
  • the 5GC-capable user equipment is a remote device
  • the 5G home gateway is a relay device.
  • the system architecture shown in FIGS. 1A-1C may also be a new radio (NR) system, a machine-to-machine (M2M) system, etc., which will evolve in the future.
  • the system architecture may include 5GC capable user equipment, 5G RG, NG RAN equipment, W-5G AN equipment, and core network equipment. among them:
  • 5GC Capable User Equipment It is a user equipment (UE) that has the ability to access the 5G core network (5GC) defined by 3GPP.
  • 5GC-capable user equipment can access the core network through NGRAN and 5G RG.
  • the 5GC-capable user equipment may be a handheld terminal, a subscriber unit, a cellular phone, a smartphone, a machine type communication (MTC) terminal device, or the like.
  • Wireless data card personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (laptopcomputer), cordless phone (cordlessphone) or wireless local loop (wireless local loop (WLL)), or other devices that can access the network.
  • the system architecture can also support terminal equipment with only wireless access capability defined by 3gpp to access the core network, and also support terminal equipment (such as tablet computers) with only access capability defined by non-3gpp. Access to the core network.
  • 5G RG It is a home gateway that can access 5GC through W-5G AN. In this application, 5G RG can also support 5GC capable user equipment to access 5GC through 5G RG.
  • the home gateway is the core of the entire home network. It mainly implements Internet access and the connection of heterogeneous subnets within the home, as well as remote control and management functions.
  • NGRAN device It is a RAN device that is mainly responsible for radio resource management, quality of service (QoS) management, data compression, and encryption functions on the air interface side.
  • the system architecture can also support other 3GPP-defined radio access network equipment, such as 5GRAN equipment.
  • the RAN device may include: a macro base station, a micro base station (also referred to as a small station), a relay station, and the like. In systems using different wireless access technologies, the names of devices with base station functions may be different.
  • gNB 5th generation
  • LTE Long Term Evolution
  • eNB evolved NodeB
  • 3G third generation
  • W-5G AN equipment It is an AN equipment.
  • the AN device may be a non-3GPP-defined access network device.
  • AN equipment allows terminal equipment and 3GPP core networks to be interconnected using non-3GPP technologies.
  • non-3GPP technologies such as: wireless fidelity (Wi-Fi), worldwide interoperability for microwave access (WiMAX) ), Code division multiple access (code division multiple access, CDMA) networks, etc.
  • Wi-Fi wireless fidelity
  • WiMAX worldwide interoperability for microwave access
  • CDMA Code division multiple access
  • the system architecture can also support other non-3GPP-defined access network equipment, such as Wi-Fi routers.
  • Core network equipment can include UPF, AMF, UDM, SMF, PCF, AUSF, etc. as shown in Figures 1A-1C.
  • These core network devices constitute 5GC, which can support 3gpp access network and non-3gpp access network. among them:
  • UPF network element responsible for forwarding and receiving data packets.
  • the UPF network element can receive user data from the data network and transmit it to the terminal device through the access network device; the UPF network element can also receive user data from the terminal device through the access network device and forward it to the data network.
  • Transmission resources and scheduling functions in the UPF network element that provide services to terminal equipment are managed and controlled by the SMF network element.
  • UPF network elements can buffer data packets.
  • Access and mobility management (AMF) network element belongs to the core network element and is mainly responsible for the signaling processing part, such as: access control, mobility management, attachment and detachment, and gateway selection, etc.
  • AMF Access and mobility management
  • a control plane storage resource is provided for the session to store a session identifier, an SMF network element identifier associated with the session identifier, and the like.
  • Unified data management is composed of two parts, one is called the front end of application (FE), and the other is called user data warehouse (UDR).
  • FE can access subscriber information stored in UDR, and supports authentication credit processing, user identification processing, access authorization, subscription management, short message management, etc.
  • UDR is a subscription data storage server that provides subscription data storage services.
  • Session management function (SMF) network element responsible for user plane network element selection, user plane network element redirection, Internet protocol (IP) address allocation, establishment, modification, and release of data transmission channels, and QoS control .
  • SMF network elements can buffer data packets.
  • PCF Policy control function
  • Authentication server function (AUSF) network element mainly provides authentication and authentication functions.
  • system architecture also includes a data network (DN), which is a network consisting of application functions that provides application data servers to terminal equipment.
  • DN data network
  • UDSF unstructured data storage network function
  • SDSF structured data storage network function
  • NFSF function NF storage function
  • FIGS. 1A-1C The system architecture shown in FIGS. 1A-1C is only for more clearly illustrating the technical solution of the present application, and does not constitute a limitation on the present application. Those of ordinary skill in the art may know that with the evolution of the network architecture and the emergence of new service scenarios, The technical solutions provided in this application are also applicable to similar technical problems.
  • This application provides a network access method, which can enable a user equipment (UE) to access the 5GC through a home gateway, so that the 5GC supports more access methods, and improves the convergence of the fixed network and the mobile network.
  • UE user equipment
  • the UE may be a 5GC capable UE in the system architecture shown in FIG. 1A-1C
  • the home gateway may be a 5G RG in the system architecture shown in FIG. 1A-1C.
  • the main inventive principle of this application may include: determining the following two issues based on the 5G RG contract data: 1) determining whether the home gateway allows UE access. 2) When 5G RG allows UE access, judge the UE's access model (including subscription user access, non-subscriber access). Subscriber access is for family members to access 5GC through 5G RG, and non-subscriber access is for non-family members (such as guest users or strangers) to access 5GC through 5G RG.
  • 5G RG contract data can indicate which 5G RG contract users are.
  • 5G RG contract data can indicate which users 5G RG allows access.
  • the 5G RG contract data may include the following information:
  • the identification information of the user equipment in the subscription user list indicates that the user equipment is a subscription user, that is, a family member.
  • the identification information of the user equipment may be at least one of a permanent identification information of the UE or an international ISDN / PSTN number (Mobile Subscriber International ISDN / PSTN number, MSISDN) of the UE's mobile subscription user.
  • ISDN is the abbreviation for Integrated Service Digital Network
  • PSTN is the abbreviation for Public Switched Telephone Network.
  • the access type of 5G RG may include an open type, a closed type / private type. Closed type / private type means that 5G RG only allows access by contracted users, and does not allow access by non-subscribed users.
  • the open type means that 5G RG not only allows subscribers to access, but also allows non-subscribers to access.
  • the subscription user list can be used by the network side to determine the subscription type (subscriber user or non-subscriber user) of the UE, so as to determine the access model of the UE, that is, whether the subscription user accesses or non-subscriber user access.
  • the access type of 5G RG can be used by the network side to determine whether the UE is allowed to access 5G RG. If the access type of 5G RG is an open type, it means that the UE is allowed to access 5G RG. If the access type of 5G RG is a closed type / private type, it is also necessary to determine whether the UE is allowed to access 5G RG in conjunction with the subscription user list. If the identification information of the UE belongs to the subscription user list, the UE is allowed to access 5G RG; otherwise, the UE is not allowed to access 5G RG.
  • the network side may determine that the UE is allowed to access the 5G RG. That is, the subscribers are allowed to access 5G RG, regardless of whether the access type of the 5G RG is open or closed / private.
  • the indication information of the contract type may be terminal device classification information, and the terminal device classification information is terminal device classification list information or terminal device classification instruction information.
  • the terminal device classification list information includes at least one terminal device identifier, and the terminal devices belong to the same terminal device classification.
  • the terminal device classification list is a contracted terminal device list or a non-subscribed terminal device list.
  • the indication information of the terminal device classification may be an identification of the terminal device classification.
  • the terminal device classification instruction information is the contracted terminal device instruction information or the non-subscribed terminal device instruction information.
  • the core network device judgment can determine whether the terminal device is allowed to access or perform policy control based on the classification of the terminal device (such as Qos policy control or home gateway local policy control). Specifically, if the identification information of the terminal device belongs to the contracted terminal device classification list, the remote device is allowed to access; if the identification information of the terminal device does not belong to the contracted terminal device classification list, the remote device is not allowed to access.
  • 5GC can perform different host policies or guest policies on the UE, such as different QoS control, permission to use specific resources (such as printers), or be allowed to access the Internet.
  • the host policy is provided to the UEs of the subscribers belonging to the 5G RG, for example, user equipment of family members.
  • the guest policy is provided to UEs that are not subscribers of the 5G RG, for example, the user equipment of the guest.
  • the network side distinguishes different access models of the UE to facilitate subsequent different service control, such as different QoS control. Especially when network resources are limited, the network side can prioritize access for contracted users and restrict access for non-subscribed users.
  • the differentiated service management policies (such as the host policy and the guest policy) performed by the 5GC on the UE, this application is not limited, and can be determined according to the application scenarios supported by 5G or NR.
  • UDM registered by the UE and UDM network elements registered by 5G and RG will involve UDM registered by the UE and UDM network elements registered by 5G and RG.
  • the two may be the same UDM network element or different UDM network elements.
  • the UDM network elements registered by the UE and 5G RG are different UDM network elements.
  • the UDM network elements registered by the UE and the 5G RG may be the same UDM network element or different UDM network elements.
  • the AMF network element serving the UE and the AMF network element serving the 5G RG involved in the subsequent embodiments may be the same AMF network element or different AMF network elements.
  • the simplified UDM network element is referred to as UDM
  • the simplified AMF network element is referred to as AMF.
  • the UDM registered by 5G RG is called UDM1
  • the UDM registered by UE is called UDM2.
  • the AMF serving 5G RG is called AMF1
  • the AMF serving UE is called AMF2.
  • the UDM is responsible for determining the UE's access model (including subscription user access, non-subscriber user access), and determining whether the home gateway allows UE access.
  • the network access method provided in Embodiment 1 may include:
  • Phase 1 The UE initiates an access request. This can include:
  • the UE establishes a connection with the 5G RG, such as establishing a connection through a WLAN interface.
  • 5G RG or W-5G AN equipment accessed by 5G RG can assign an IP address to the UE.
  • 5G RG could be registered to 5GC, and the core network element that 5G RG registered was AMF1.
  • AMF1 the core network element that 5G RG registered was AMF1.
  • 5G RG registration to 5GC please refer to the registration process defined by the 3gpp standard protocol, which is not described here.
  • the UE establishes a connection with the W-5G AN device.
  • This application does not limit the manner in which the UE establishes a connection with the W-5G AN device.
  • the UE may establish a connection with a W-5G AN device through an IKEv2 message.
  • the UE sends an IKE secure connection initial (IKE_SA_INIT) message to the W-5G AN device, and then the W-5G AN device sends an IKE_SA_INIT reply message. Then, the UE sends an authentication request (IKE_AUTH request) message to the W-5G AN device.
  • IKE stands for Internet Key Exchange (Internet Key Exchange) protocol.
  • the UE can exchange Extensible Authentication Protocol (EAP) messages with 5G-RG and W-5GAN to establish a connection between W-5G and AN devices.
  • the EAP message may include an EAP-request / response message, an EAP-request / identity message, or an EAP-response / identity message, or an EAP-Request / 5G start message, or an EAP-Response / 5G-NAS message, and the like.
  • the UE sends the EAP message to the W-5GAN, which carries an AN-parameter and a non-access stratum (NAS) message.
  • the NAS message is a registration request message, a mobile registration update request message, a periodic location update request message, or a service request message.
  • the UE may send a request message to the W-5G AN device based on the connection established between the UE and the W-5G AN device.
  • the request message may be a NAS message. This request message can be carried in the EAP message and sent to W-5GAN, see S103-105 for details.
  • the request message may include identification information of the UE for requesting access to a core network (5GC).
  • W-5G AN equipment can forward the NAS message to AMF2. For details, refer to S109.
  • the second stage the network obtains the 5G RG identification information and 5G RG contract data. This can include:
  • the 5G RG sends the 5G RG temporary identification information to the W-5G AN device.
  • the 5G RG temporary identification information can be used to index the 5G RG context on the core network side.
  • the 5G RG temporary identification may include a globally unique temporary identifier (GUTI), that is, a temporary identification allocated by the network side (5GC) for 5G RG.
  • GUI globally unique temporary identifier
  • 5G RG sends 5G RG temporary identification information this application does not limit this.
  • 5G RG sends Point-to-Point Ethernet (PPPoE) based on Ethernet, or other control plane messages, which can carry temporary identification information of 5G RG.
  • the message may also carry the IP address of the UE.
  • the request message sent by the UE to the W-5G AN device in S106 may also carry temporary identification information of 5G RG, and the temporary identification information of 5G RG may be obtained by the UE.
  • the UE can obtain the temporary identification information of the 5G RG through an Access Network Query Protocol (ANQP) query.
  • ANQP Access Network Query Protocol
  • the UE may receive an ANQP message or an EAP message sent by the 5G RG, and these messages contain a 5G RG temporary identity.
  • the UE may obtain temporary identification information of 5G-RG through an EAP message.
  • the 5G-RG carries a 5G-RG temporary identity in an EAP message sent to the UE.
  • the EAP message may be an EAP-Request / Identity message or an EAP-request / 5G-start message.
  • the W-5G AN device can select AMF2 for the UE.
  • the W-5G AN device may select AMF2 based on slice selection information or UE identification information or AMF identification information.
  • the message sent by the UE to the W-5GAN contains the slice information requested by the UE.
  • Different AMFs on the network side are responsible for different slices, so W-5GAN can select the AMF2 that is responsible for the slice based on the slice information.
  • the UE sends the identification information of the UE to the W-5GAN, and the identification information of the UE includes an AMF identification, and the W-5GAN selects AMF2 corresponding to the AMF identification.
  • the UE directly sends the identification information of the AMF to the W-5GAN, and the W-5GAN selects the AMF2 corresponding to the AMF identification.
  • the W-5G AN device may send a request message to the AMF2.
  • the request message may include UE identification information and 5G RG temporary identification information, which is used by the UE to request access to the core network.
  • the request message may be an N2 message, and N2 is a reference point between the W-5G AN device and the AMF.
  • the W-5G AN device can carry the NAS message (refer to S106) sent by the UE in the N2 message, so that the W-5G AN device can forward the NAS message to AMF2 for the UE to request access from AMF2 Core Network.
  • AMF2 obtains 5G RG permanent identification information based on 5G RG temporary identification information.
  • 5G RG's permanent identification information is used to subsequently obtain 5G RG's contract data.
  • AMF2 can first obtain 5G RG temporary identification information in the following ways:
  • Method 1 AMF2 obtains 5G RG temporary identification information from the NAS signaling sent by the UE.
  • the UE obtains 5G RG temporary identification information (refer to S102), and then carries the 5G RG temporary identification information through a NAS message (forwarded by a W-5G AN device) and sends it to AMF2.
  • Method 2 AMF2 obtains 5G RG temporary identification information from W-5G AN equipment.
  • the temporary identification information may be sent by 5G RG to W-5G AN equipment.
  • S107 For details, refer to S107.
  • the AMF2 can obtain the permanent identification information of the 5G RG from the context of the 5G RG based on the temporary identification information.
  • the context of 5G RG is stored on AMF1.
  • AMF2 can find the AMF1 serving 5G RG based on the 5G RG temporary identification information, and send a request to AMF1 Message.
  • the request message may further include a SUPI request indication, which indicates that the 5G RG permanent identity information is requested.
  • AMF1 can find the context of 5G RG based on the temporary identification information of 5G RG, obtain the permanent identification information of 5G RG from the context, and send the permanent identification information to AMF2.
  • the request message carries a 5G RG temporary identification letter.
  • the request message may also carry an instruction for requesting permanent identification information.
  • the permanent identification information may be a subscriber permanent identifier (SUPI).
  • AMF1 and AMF2 are the same AMF, the interaction process shown in S110-S111 is no longer needed, and AMF can directly obtain 5G from the locally stored 5G RG based on the 5G RG temporary identification information. RG's permanent identification information.
  • AMF2 can complete UE authentication based on the authentication authentication process. Specifically, the AMF2 finds out the UDM2 responsible for storing the subscription data of the UE based on the identification information of the UE. Then, UDM2 and AUSF complete the UE's authentication and authentication process based on the authentication vector in the UE's subscription data.
  • the authentication and authentication process can specifically refer to the related protocols in the 3gpp standard, which is not described here again.
  • AMF2 finds out UDM1 responsible for storing 5G RG contract data based on the 5G RG permanent identification information, and sends a request message to UDM1.
  • the request message may include UE identification information and 5G RG permanent identification information.
  • the request message may also carry an access request indication, indicating that the UE represented by the identification information of the UE requests that the 5G RG represented by the 5G RG SUPI be used to access the core network.
  • the request message can also carry the identification information of AMF2, so that UDM1 can store the identification information of AMF2, which can be used to notify AMF2 to update the subscription type of the UE when the subsequent 5G RG contract data is updated.
  • UDM1 receives the request message sent by AMF2.
  • the core network determines the access model of the UE based on the 5G RG contract data. This can include:
  • the UDM1 may determine the 5G RG contract data based on the permanent identification information of the 5G RG. UDM1 can then determine the subscription type of the UE based on the 5G RG subscription data. UDM1 can also determine whether the UE is allowed to access 5G RG based on the 5G RG contract data.
  • 5G RG contract data can include the following information:
  • List of subscribers identification information of the user equipment of the subscribers of the 5G RG.
  • the identification information of the user equipment in the subscription user list indicates that the user equipment is a subscription user, that is, a family member.
  • the access type of 5G RG may include an open type, a closed type / private type. Closed type / private type means that 5G RG only allows access by contracted users, and does not allow access by non-subscribed users.
  • the open type means that 5G RG not only allows subscribers to access, but also allows non-subscribers to access. In other words, the access type can be used to indicate whether 5G RG allows non-subscribed users to access.
  • UDM1 may determine the access model of the UE based on the access model of the subscription user list. If the identification information of the UE belongs to the identification information of the user equipment of the subscription user in the subscription user list, the UDM1 may determine that the UE is a subscription user of the 5G RG.
  • UDM1 can determine whether the UE is allowed to access 5G RG in the following ways:
  • the UDM1 may determine that the UE is allowed to access the 5G RG, regardless of whether the access type of the 5G RG is open The type is also a closed type / private type.
  • UDM1 may determine that the UE is allowed to access 5G RG.
  • UDM1 may determine that the UE is not allowed to access 5G RG.
  • the subscription data may include a mapping table, and the mapping table includes identification information of multiple UEs and indication information of respective corresponding subscription types of the identification information of the multiple UEs, where the identification information of the multiple UEs may be It includes identification information of the UE of the contracted user, and may also include identification information of the UE of the non-subscribed user.
  • UDM1 can find out the subscription type corresponding to the specific UE from this mapping table according to the identification information of the specific UE.
  • UDM1 may send a response message to AMF2.
  • the response message includes indication information that may include a subscription type of the UE.
  • AMF2 can receive the response message sent by UDM1, and determine the UE's service management policy (such as QoS control) according to the subscription type of the UE. In this way, the network side can distinguish different access models of the UE, so as to facilitate subsequent different service control.
  • AMF2 may also determine that the UE is allowed to access 5G RG.
  • the response message may further include access instruction information, which indicates whether the UE is allowed to access 5G RG.
  • the access indication information is an access refusal indication; when the UE is allowed to access, the access indication information is an access permission indication.
  • AMF2 may store the subscription type of the UE in the context of the UE.
  • UDM1 may also send the subscription data of 5G RG to AMF2, and AMF2 determines the subscription type of the UE, and whether the UE is allowed to access 5G RG. Specifically, AMF2 determines the UE's subscription type and whether the UE is allowed to access 5G.
  • RG and UDM1 can be the same. For details, refer to S114-S115, and details are not described here.
  • UDM1 may also send the list of contracted users to AMF2 after determining that the UE is allowed to access 5G RG, so that AMF2 can determine the UEs that access 5G RG according to the list of contracted users.
  • AMF2 completes the UE's access process based on the existing registration process or mobile registration update process or periodic registration update process, such as allowing access process or rejecting access process.
  • the existing registration process the mobile registration update process, or the periodic registration update process, please refer to the relevant protocol in the 3gpp standard for details, which will not be repeated here.
  • the AMF2 may send access instruction information to a W-5G AN device or a 5G RG, and the access instruction information is used to indicate whether the UE is allowed to access the 5G RG.
  • the indication information may be a security key, so that the W-5GAN can determine that the UE's authentication is successful based on the received security key, and thus determine that the UE is allowed to access.
  • the indication information may be an EAP-Success message, so that the 5G-RG can determine that the UE's authentication is successful based on receiving the EAP-Success message, and therefore it is determined that the UE is allowed access.
  • the AMF2 may also send indication information of the UE's subscription type and / or indication information of the UE's service management policy (such as QoS control, or local resource access authority, etc.) to the W-5G AN device or 5G RG or UE.
  • the above access indication information, or UE's subscription type indication information, and / or the UE's service management policy are sent from the AMF2 to the W-5GAN through the N2 interface message, or via NAS (Non-Access-Stratum)
  • the message is sent by AMF2 to 5G-RG or UE.
  • the W-5G AN device may send the 5G RG or UE access indication information, UE Indication information of a subscription type and / or indication information of a service management policy of the UE.
  • the indication information may be a security key, so that the W-5GAN may determine that the authentication and authentication of the UE is successful based on the received security key, and thus determine that the UE is allowed to access.
  • the indication information may be an EAP-Success message, so that the 5G-RG or the UE can determine that the UE's authentication is successful based on the receipt of the EAP-success message, so it is determined that the UE is allowed to access.
  • the indication information may be a NAS success message, so that the UE may determine that the UE is allowed to access based on the NAS success message.
  • the access indication information, or the UE's subscription type indication information, and / or the UE's service management policy are sent by the W-5GAN to the 5G-RG or the UE through an access-side message.
  • the access-side message is, for example, a PPPoE message or an EAP message or other fixed-network access-side message.
  • the 5G RG may send the UE the access indication information and the UE's subscription type indication information. And / or indication information of a service management policy of the UE.
  • the indication information may be an EAP-Success message, so that the UE can determine that the authentication and authentication of the UE is successful based on receiving the EAP-success message, so it is determined that the UE is allowed to access.
  • the indication information may be a NAS success message, so that the UE may determine that the UE is allowed to access based on the NAS success message.
  • the access indication information, or the UE's subscription type indication information, and / or the UE's service management policy are sent by the 5G-RG to the UE through an air interface side message.
  • the air interface side message is, for example, a PC5 interface message, an EAP message, a WLAN interface message, or a Bluetooth interface message.
  • the fourth stage: 5G RG contract data is updated. This can include:
  • the 5G RG contract data stored on UDM1 is updated.
  • the access type of 5G RG has changed from an open type to a private type, or the list of contracted users is updated.
  • UDM1 may re-determine the subscription type of the UE based on the updated 5G RG contract data, and re-determine whether the UE is allowed to access the 5G RG.
  • UDM1 can also send the updated 5G RG contract data to AMF2, and AMF2 re-determines the UE's subscription type and whether the UE is allowed to access 5G RG based on the updated 5G RG contract data.
  • UDM1 may send an access update message to AMF2 according to the identification information of AMF2.
  • the access update message is implemented as follows:
  • the access update message may include an access rejection indication.
  • the access update message may include indication information of the UE's updated subscription type to inform AMF2 to adjust the UE's access model, and UE's service management strategy.
  • the access update message may include at least one of the updated 5G RG access type and the updated subscriber list, and AMF2 is based on the updated 5G RG access type and / or the updated subscription
  • the user list determines the subscription type of the UE and whether the UE is allowed to access 5G RG.
  • the AMF2 sends a notification message to the UE.
  • the notification message may be used to notify the UE of the changed subscription type.
  • the notification message may carry a reselection instruction, which is used to notify the UE to reselect the 5G RG for access.
  • the UE may release the connection with the source 5G RG and select another 5G RG to access the 5GC.
  • the UDM can distinguish different access models of the UE based on the 5G RG subscription data to facilitate subsequent different service control, such as different QoS control.
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users.
  • 5GC can support more access methods, and improve the convergence of fixed and mobile networks.
  • the main difference between the second embodiment and the first embodiment lies in that the manner in which the AMF2 obtains the identification information of the 5G RG is different.
  • the network access method provided in the second embodiment may include:
  • Phase 1 The UE initiates an access request.
  • the UE establishes a connection with the 5G RG, such as establishing a connection through a WLAN interface.
  • 5G RG or W-5G AN equipment accessed by 5G RG can assign an IP address to the UE.
  • 5G RG could be registered to 5GC, and the core network element that 5G RG registered was AMF1.
  • AMF1 the core network element that 5G RG registered was AMF1.
  • 5G RG registration to 5GC please refer to the registration process defined by the 3gpp standard protocol, which is not described here.
  • the UE establishes a connection with the W-5G AN device.
  • S103-S105 the UE establishes a connection with the W-5G AN device.
  • the UE may send a request message to the W-5G AN device based on the connection established between the UE and the W-5G AN device.
  • the request message may include identification information of the UE for requesting access to a core network (5GC).
  • the request message may be a NAS message.
  • the W-5G AN device can forward the NAS message to AMF1. For details, refer to S207.
  • the second stage the network obtains the 5G RG identification information and 5G RG contract data. This can include:
  • W-5G AN equipment recognizes 5G RG, obtains 5G RG line ID (line ID), 5G RG GUTI or N2 interface 5G RG temporary identification information and other temporary identification information.
  • W-5GAN determines the 5G RG context, obtains the 5G RG connected AMF1 from the 5G RG context, and sends a request message to AMF1.
  • the request message may include identification information of the UE and temporary identification information of the 5G RG.
  • the above-mentioned 5G RG temporary identification information includes at least one of a 5G RG line ID, or a 5G RGGUTI, or an N2 interface 5G RG temporary identification.
  • the request message may be an N2 message, and N2 is a reference point between the W-5G AN device and the AMF.
  • the W-5G AN device can carry the NAS message (refer to S205) sent by the UE in the N2 message, so that the W-5G AN device can forward the NAS message to AMF2 for the UE to request access from AMF2 Core Network.
  • AMF1 receives the request message sent by the W-5G AN device, and indexes it into the 5G RG context based on the 5G RG temporary identification information, and obtains the 5G RG permanent identification information from the 5G RG context.
  • the W-5GAN identification scheme for 5G RG includes but is not limited to the following:
  • W-5GAN identifies 5G RG based on the UE's local IP address, that is, which 5G RG is allocated by the IP address space to which the IP address belongs, thereby determining 5G RG.
  • the IP address of the UE is assigned by the W-5G AN device based on the DHCP process.
  • the W-5G AN device can obtain the line ID of the 5G RG connection from the DHCP message, that is, the line ID.
  • W-5G AN equipment can identify 5G RG based on the correspondence between line ID and 5G RG.
  • the W-5G AN device can also identify the 5G RG based on the 5G RG's Virtual Local Area Network (VLAN) identifier or the UE's current access point identifier.
  • VLAN Virtual Local Area Network
  • AMF1 may select AMF2 for the UE. Specifically, AMF1 may select AMF2 based on slice selection information or UE identification information.
  • the AMF1 sends a notification message to the AMF2, and the notification message may include identification information of the UE and permanent identification information of the 5G RG.
  • the notification message may be an N1 notification message (N1 messageNotify), and N1 is a reference point between the UE and the AMF.
  • AMF1 may carry the NAS message (refer to S205) sent by the UE in the N1 notification message.
  • the AMF2 can receive the notification message sent by the AMF2 and obtain the permanent identification information of the 5G RG carried in the notification message.
  • AMF1 is responsible for determining the UE's access model (including subscription user access, non-subscriber user access), and determining whether the home gateway allows UE access. Different from the first embodiment and the second embodiment, the embodiment does not need AMF2 to interact with UDM1 to determine 5G RG contract data.
  • the network access method provided in the third embodiment may include:
  • S301-S306 The UE initiates an access request.
  • AMF2 obtains 5G RG temporary identification information. It is the same as S107-S109 in the first embodiment, and is not repeated here.
  • AMF2 can find AMF1 based on the 5G RG temporary identification information, and send a request message to AMF1.
  • the request message may include identification information of the UE and temporary identification information of the 5G RG.
  • the request message may further include an access request indication, indicating that the UE represented by the identification information of the UE requests that the 5G RG represented by the temporary identification information of the 5G RG access the core network.
  • AMF1 can find the context of 5G RG based on the temporary identification information of 5G RG.
  • the context of this 5G RG includes the 5G RG contract data obtained from UDM 1.
  • AMF1 can determine the subscription type of the UE and whether the UE is allowed to access the 5G RG based on the 5G RG's subscription data.
  • AMF1 determines the subscription type of the UE and whether the UE is allowed to access the 5G RG based on the 5G RG contract data.
  • the implementation of the AMF1 is the same as that adopted by the UDM in the first embodiment, and will not be repeated here.
  • AMF1 can send a response message to AMF2.
  • the response message includes indication information that may include a subscription type of the UE.
  • AMF2 may receive the response message sent by AMF1, and determine a service management policy (such as QoS control) of the UE according to the subscription type of the UE. In this way, the network side can distinguish different access models of the UE, so as to facilitate subsequent different service control.
  • AMF2 may also determine that the UE is allowed to access 5G RG.
  • the response message may further include access instruction information, which indicates whether the UE is allowed to access 5G RG.
  • the access indication information is an access refusal indication; when the UE is allowed to access, the access indication information is an access permission indication.
  • AMF2 may store the subscription type of the UE in the context of the UE.
  • AMF1 can store the identification information of AMF2, which can be used to notify AMF2 to update the UE's subscription type under the condition that subsequent 5G RG contract data is updated.
  • AMF1 can also store the identification information of the UE, which can be used to determine whether the subscription data of the UE has changed. If the subscription type of the UE changes from a contracted user to a non-subscribed user, the UE needs to be notified in a targeted manner.
  • AMF2 can complete UE authentication based on the authentication authentication process.
  • AMF2 completes the UE's access process based on the existing registration process or mobile registration update process or periodic registration update process, such as allowing access process or rejecting access process.
  • the existing registration process the mobile registration update process, or the periodic registration update process, please refer to the relevant protocol in the 3gpp standard for details, which will not be repeated here.
  • the AMF2 may send access instruction information to a W-5G AN device or a 5G RG, and the access instruction information may be used to indicate whether the UE is allowed to access the 5G RG, as in the foregoing S117-S118.
  • AMF2 may also send the UE's subscription type indication information and / or the UE's service management policy (such as QoS control, or local resource access rights, etc.) to the W-5G AN device or 5G RG or UE.
  • the access indication information, or the UE's subscription type indication information, and / or the UE's service management policy are sent from the AMF2 to the W-5GAN through an N2 interface message, or via a NAS (Non-Access-Stratum) message Sent by AMF2 to 5G-RG or UE.
  • NAS Non-Access-Stratum
  • the W-5G AN device may send the 5G RG or UE access indication information, UE Indication information of a subscription type and / or indication information of a service management policy of the UE.
  • the access indication information, or the UE's subscription type indication information, and / or the UE's service management policy are sent by the W-5GAN to the 5G-RG or the UE through an access-side message.
  • the above access side message is a PPPoE message or an EAP (Extensible Authentication Protocol) message or other fixed network access side messages.
  • the 5G RG may send the UE the access indication information and the UE's subscription type indication information. And / or indication information of a service management policy of the UE.
  • the access indication information, or the UE's subscription type indication information, and / or the UE's service management policy are sent by the 5G-RG to the UE through an air interface side message.
  • the above air interface side message is a PC5 interface message, an EAP message, a WLAN interface message, or a Bluetooth interface message.
  • the 5G RG contract data stored on UDM1 is updated.
  • the access type of 5G RG has changed from an open type to a private type, or the list of contracted users is updated.
  • UDM1 sends a subscription data update message to AMF1, and the subscription data update message may carry the updated subscription data of 5G RG.
  • AMF1 receives the subscription data update message sent by UDM1, and determines the subscription type of the UE and whether the UE is allowed to access 5G RG based on the updated subscription data of 5G RG. Then, AMF1 may send an access update message to AMF2 according to the identification information of AMF2.
  • the access update message reference may be specifically made to the access update message mentioned in the first embodiment, and details are not described herein again.
  • the AMF2 sends a notification message to the UE.
  • the notification message may be used to notify the AMF2 of the changed subscription type of the UE.
  • the notification message may carry a reselection instruction, which is used to notify the UE to reselect the 5G RG for access.
  • the UE may release the connection with the source 5G RG and select another 5G RG to access the 5GC.
  • the AMF can distinguish different access models of the UE based on the subscription data of the 5G RG to facilitate subsequent different service control, such as different QoS control.
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users.
  • 5GC can support more access methods, and improve the convergence of fixed and mobile networks.
  • AMF2 may also obtain the 5G RG temporary identification information in the manner described in the second embodiment.
  • this application also provides another network access method.
  • whether the UE can access the 5GC using the current access point and the subscription type of the UE can be determined based on the subscription data of the UE.
  • the method may include:
  • Phase 1 The UE initiates an access request. This can include:
  • the UE establishes a connection with the 5G RG, such as establishing a connection through a WLAN interface.
  • 5G RG or W-5G AN equipment accessed by 5G RG can assign an IP address to the UE.
  • 5G RG could be registered to 5GC, and the core network element that 5G RG registered was AMF1.
  • AMF1 the core network element that 5G RG registered was AMF1.
  • 5G RG registration to 5GC please refer to the registration process defined by the 3gpp standard protocol, which is not described here.
  • S403-S405 the UE establishes a connection with the W-5G AN device.
  • S103-S105 the UE establishes a connection with the W-5G AN device.
  • the UE may send a request message to the W-5G AN device based on the connection established between the UE and the W-5G AN device.
  • the request message may include identification information of the UE for requesting access to a core network (5GC).
  • the request message may be a NAS message.
  • the W-5G AN device can forward the NAS message to AMF2. For details, refer to S409.
  • the second stage the network obtains the identification information and subscription data of the UE's current access point. This can include:
  • the 5G RG sends identification information of the current access point of the UE to the W-5G AN device.
  • the current access point of the UE is the 5G RG to which the UE is currently connected.
  • the identification information of the UE's current access point can be used to index the subscription data to the UE at the core network side.
  • the access point identifier may include a service set identifier (SSID), a uniform extended service set identifier (HESSID), and the like.
  • SSID service set identifier
  • HESSID uniform extended service set identifier
  • 5G RG sends a PPPoE message, or other control plane message, which can carry the identification information of the UE's current access point.
  • the message may also carry the IP address of the UE.
  • the request message sent by the UE to the W-5G AN device in S406 may also carry identification information of the current access point of the UE, and the identification information of the current access point may be obtained by the UE.
  • the UE can obtain the identification information of the current access point through an ANQP query.
  • the UE may receive an ANQP message or an EAP message sent by the 5G RG, and these messages contain identification information of the current access point.
  • the W-5G AN device may select AMF2 for the UE. Specifically, the W-5G AN device may select AMF2 based on slice selection information or UE identification information.
  • the W-5G AN device may send a request message to the AMF2.
  • the request message may include identification information of the UE and identification information of the current access point of the UE, and is used by the UE to request access to the core network.
  • the request message may be an N2 message, and N2 is a reference point between the W-5G AN device and the AMF.
  • the W-5G AN device can carry the NAS message (refer to S406) sent by the UE in the N2 message, so that the W-5G AN device can forward the NAS message to AMF2 for the UE to request access from AMF2 Core Network.
  • AMF2 sends a request message to UDM2, and the request message may include identification information of the UE and identification information of the current access point of the UE.
  • the core network determines the access model of the UE based on the subscription data of the UE. This can include:
  • UDM2 receives the request message sent by AMF2.
  • UDM2 may obtain the subscription data of the UE based on the identification information of the current access point included in the request message.
  • UDM2 can determine the subscription type of the UE from the subscription data of the UE.
  • UDM2 can also determine whether the UE is allowed to access the current access point based on the subscription data of the UE.
  • the subscription data of the UE may be used to indicate which access points the UE is a subscription user of.
  • the subscription data of the UE may include the following information:
  • List of contracted access points contains identification information of at least one access point, indicating that the UE is a contracted user of the at least one access point. If the identification information of the current access point of the UE belongs to the identification information of the at least one access point, it indicates that the UE is a contracted user of the current access point. It should be understood that if the UE is a contracted user of the current access point, the UE is allowed to access the current access point.
  • Non-subscribed access point list contains identification information of at least one access point, indicating that the UE is a non-subscribed user of the at least one access point. If the identification information of the current access point of the UE belongs to the identification information of the at least one access point, it indicates that the UE is a non-subscribed user of the current access point.
  • the access point list (a list of contracted access points or a list of non-subscribed access points) contains an identification of an access point to which the UE can access.
  • the white list only records identification information of an access point to which the UE can access.
  • UDM2 may complete the UE's authentication and authentication process based on the authentication vector in the UE's subscription data. Regarding the authentication and authentication process, you can specifically refer to the relevant protocols in the 3gpp standard, which will not be repeated here.
  • UDM2 may send a response message to AMF2.
  • the response message includes indication information that may include a subscription type of the UE.
  • AMF2 can receive the response message sent by UDM2 and determine the UE's service management policy (such as QoS control) according to the subscription type of the UE. In this way, the network side can distinguish different access models of the UE, so as to facilitate subsequent different service control.
  • UDM2 may also determine that the UE is allowed to access 5G RG.
  • the response message may further include access instruction information, which indicates whether the UE is allowed to access the current access point.
  • the access indication information is an access refusal indication; when the UE is allowed to access, the access indication information is an access permission indication.
  • UDM2 may store the subscription type of the UE in the context of the UE.
  • UDM2 may also send the above-mentioned contracted access point list and / or the above-mentioned non-subscribed access point list to AMF2, and AMF2 determines the UE's subscription type and whether the UE is allowed to access the current Access Point.
  • AMF2 determines the UE's subscription type and whether the UE is allowed to access the current Access Point.
  • the implementation manner of the AMF2 determining the UE's subscription type and whether the UE is allowed to access the current access point may be the same as that adopted by the UDM2, and details are not described herein again.
  • AMF2 completes the UE's access process based on the existing registration process or mobile registration update process or periodic registration update process, such as allowing access process or rejecting access process.
  • the existing registration process the mobile registration update process, or the periodic registration update process, please refer to the relevant protocol in the 3gpp standard for details, which will not be repeated here.
  • the AMF2 may send the UE's subscription type indication information and / or the UE's service management policy (such as QoS control) to the W-5G AN device or the 5G RG.
  • the AMF2 may also send an access instruction to the W-5G AN device or the 5G RG, and the access instruction is used to indicate whether the UE is allowed to access the current access point.
  • the fourth stage the subscription data of the UE is updated. This can include:
  • the subscription data of the UE stored on the UDM2 is updated. For example, the list of contracted access points and / or the list of non-subscribed access points is updated.
  • UDM2 may re-determine the subscription type of the UE based on the updated subscription data of the UE, and re-determine whether the UE is allowed to access the current access point.
  • UDM2 may also send the subscription data of the updated UE to AMF2, and AMF2 re-determines the subscription type of the UE and whether the UE is allowed to access the current access point based on the updated subscription data of the UE.
  • the UDM2 may send an access update message to the AMF2 according to the identification information of the AMF2.
  • the access update message is implemented as follows:
  • the access update message may include the UE's updated subscription type indication information to notify the AMF2 Adjust the access model of the UE and the service management strategy of the UE.
  • the access update message may include an access rejection indication.
  • the AMF2 sends a notification message to the UE.
  • the notification message may be used to notify the UE of the changed subscription type.
  • the notification message may carry a reselection instruction, which is used to notify the UE to reselect the access point for access.
  • the UE may release the connection with the current access point and select another access point to access the 5GC.
  • the core network can distinguish different access models of the UE based on the subscription data of the UE to facilitate subsequent different service control, such as different QoS control.
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users. In this way, 5GC can support more access methods, and improve the convergence of fixed and mobile networks.
  • the network side can also obtain 5G RG identification information in the following ways:
  • the UE sends a NAS message to the core network, and the NAS message contains 5G -RG identification information.
  • the 5G-RG identification information may be sent by the 5G-RG to the UE, or may be sent by the 5G-RG to the UE via a W-5G AN device.
  • the above 5G RG identification information (that is, 5G RG ID) includes, for example, 5G RG 5G-GUTI, or 5G RG SUCI (encrypted identification contracted by Subscription Identifier), or 5G-RG N2 interface identification.
  • the specific process of obtaining 5G RG identification information on the network side may include:
  • the UE establishes a layer 2 (L2) connection with the 5G-RG.
  • L2 layer 2
  • the 5G-RG sends an EAP request or an Identity request to the UE.
  • the optional EAP request or Identity request can contain 5G RG identification information, such as 5G-RG ID.
  • the UE After receiving the EAP request message or the Identity request message sent by the 5G-RG, the UE returns an EAP response message / Identity message to the 5G-RG.
  • the 5G-RG sends an authentication, authorization, and accounting (AAA) message, such as an authentication request message, to the W-5G AN.
  • AAA authentication, authorization, and accounting
  • the AAA message may carry the EAP message to the W-5GAN.
  • the AAA message may also carry a 5G-RG ID.
  • the W-5G AN sends an EAP Request / 5G-Start message.
  • the EAP Request / 5G-Start message may contain a 5G-RG ID.
  • the 5G-RG ID may be received in S504, such as 5G RG 5G-GUTI, or 5G RG SUCI (Encrypted Identity Signed by Subscription Identifier).
  • the 5G-RG ID may also be another 5G-RG ID, such as a 5G-RG N2 interface ID.
  • 5G-RG forwards the EAP Request / 5G-Start message to the UE.
  • the 5G-RG can parse the EAP Request / 5G-Start message. If the 5G-RG ID is not included in the EAP Request / 5G-Start message, the 5G-RG can request the 5G-Start message in the EAP Add 5G-RG ID.
  • the UE receives the EAP-Req / 5G-Sart message, obtains the 5G-RG ID from the message, and sends a NAS message.
  • the NAS message carries the 5G-RG ID.
  • the above 5G-RG ID is used by the AMF to find 5G RG context information, thereby obtaining a 5G RG permanent identity (that is, 5G RG SUPI).
  • the NAS message may also carry a Host UE indication.
  • the Host UE instructs the UE to request to access the core network as a host UE (that is, as a subscribed user).
  • the core network can trigger the determination process of the UE access model based on the Host UE indication.
  • the 5G-RG ID may be used as the host UE indication, that is, the 5G-RG ID may indicate that the UE requests access to the core network as the host UE.
  • the AMF determines that the UE requests to access the core network as the host UE based on the Host UE indication or based on the 5G-RG ID information contained in the NAS message.
  • the network side determines whether the UE is a host UE based on the solution of the foregoing embodiment. If the UE requests access as a host, but the UE is not a host UE, the AMF rejects the UE's access request.
  • 5G-RG ID can also be used to indicate that the UE accesses the core network through 5G RG.
  • the AMF determines that the UE accesses the core network through the 5G RG based on the 5G-RG ID information contained in the NAS message.
  • the AMF determines the device type of the UE, that is, determines whether the UE is a contracted user equipment or a non-subscribed user equipment.
  • AMF finds 5G RG context based on 5G RG ID. If the context information of the 5G RG is not stored on the AMF, the AMF selects another AMF (target AMF) that stores the 5G RG context based on the 5G RG ID. Specifically, the AMF sends a request message to the target AMF, and the above request message includes a 5G RG ID and a permanent identification request indication (such as SUPI requested). The target AMF looks for the 5G RG context based on the 5G RG ID and responds with a 5G RG permanent identity to the AMF.
  • target AMF looks for the 5G RG context based on the 5G RG ID and responds with a 5G RG permanent identity to the AMF.
  • the process performed by the AMF may also be performed by the SMF, that is, the AMF in the foregoing first to third embodiments may be replaced with the SMF.
  • the AMF may also notify the SMF of the Host UE indication.
  • the AMF2 may send the Host UE or Guest UE indication to the PCF or SMF, and the PCF may issue a QoS policy based on the Host UE or Guest UE indication.
  • AMF2 sends the Host UE or Guest UE indication to the SMF
  • the SMF reports the Host UE or Guest UE indication to the PCF
  • the PCF issues different QoS policies based on the Host / Guest UE indication. For example, for the host UE, the PCF assigns high priority parameters in the QoS policy, such as setting the QoS parameters to not allow resources to be preempted, or to preempt other user resources.
  • the PCF assigns low priority parameters in the QoS policy, such as setting the QoS parameter to allow resources to be preempted, or not preempt other user resources.
  • AMF2 can find the UDM that stores the 5G RG contract data based on the SUCI. And send a request message to UDM.
  • the above message contains 5G RG SUCI and UE identity.
  • UDM searches for 5G RG contract data based on 5G RG and SUCI, and judges the device type of the UE based on the above contract data, as in the previous embodiment.
  • the UDM sends a reply message to the AMF2.
  • the UDM also contains the AMF1 identifier attached to the 5G RG, which is the AMF1 identifier of the 5G RG service.
  • AMF2 stores 5G RG ID and AMF1 identification.
  • the terminal device Before the network side performs the determination process of the UE access model, the terminal device (UE or 5G RG) also needs to register with the network and obtain the access network side parameters related to the PDU session.
  • the following uses 5G RG as an example to describe related technical solutions (the UE involves the same process, and will not be described in detail). As shown in Figure 12, it specifically includes:
  • 5G-RG is registered to AMF1.
  • AMF1 provides services for 5G-RG.
  • the W-5G AN After the W-5G AN learns that the 5G-RG authentication is successful (for example, the W-5GAN obtains an authentication success indication from the N2 interface, which can be a security key Key), the W-5GAN can allocate a NAS corresponding to the 5G-RG. IP address information. W-5GAN can also assign user plane addresses corresponding to 5G RG, such as user plane IP addresses. Then, the W-5G AN can send a message (such as an EAP message) to the 5G-RG pair, and the message can carry the NAS IP address information corresponding to the 5G-RG. Optionally, the message may further include user plane address information corresponding to 5G RG.
  • a message such as an EAP message
  • the IP address information of the NAS corresponding to the 5G-RG is used to carry subsequent NAS messages sent by the 5G-RG.
  • the user plane address information corresponding to 5G-RG is used to carry subsequent user plane data packets sent by 5G-RG.
  • 5G-RG encapsulates a user plane data packet, an IP header is added, and the destination address in the newly added IP header is set to the user plane IP address corresponding to the 5G-RG.
  • the W-5GAN can allocate a UE IP address for 5G RG.
  • This message (such as an EAP message) can also carry an IP address assigned to the UE for 5G RG.
  • the 5G-RG sends a request message to the W-5G AN.
  • the request message may be a DHCP discover message or a DHCP request message, etc., and is used to request the W-5G AN to allocate a UE IP address to the 5G-RG.
  • the request message may carry UE identification information, such as a UE's Network Access Identity (NAI), or a UE MAC address, or a UE IP address (can be obtained from S602).
  • NAI Network Access Identity
  • the request message may carry a NAS IP address corresponding to 5G-RG and / or a user plane IP address corresponding to 5G-RG.
  • the request message may also carry at least one of a NAS indication or a user plane indication.
  • the NAS indication is used to indicate that the address carried in the message is a NAS IP address
  • the user plane is used to indicate that the address carried in the message is User plane IP address.
  • the W-5GAN allocates a UE IP address to the 5G RG based on the identification information of the 5G RG.
  • the W-5GAN can obtain the 5G RG identification information from the DHCP message header sent in S603, and find the UE context based on the 5G RG identification information.
  • the UE context contains the 5G RG authentication success information.
  • W-5GAN assigns UE IP addresses to 5G RGs with successful authentication. If the UE IP address has been assigned to 5G RG in S602, W-5GAN can assign the same or different UE IP address in the current step.
  • the W-5GAN sends a response message (EAP message or DHCP ACK message) to the 5G RG, and the response message carries the UE IP address allocated by the W-5GAN to the 5G RG.
  • EAP message or DHCP ACK message a response message
  • the 5G-RG initiates a NAS message, such as a PDU session establishment request message.
  • a NAS message such as a PDU session establishment request message.
  • the UE-5 IP address allocated by W-5GAN for 5G RG is used as the source address for encapsulating the NAS message
  • the NAS IP address allocated by W-5GAN corresponding to 5G RG is used as the destination address for encapsulating the NAS message.
  • W-5GAN can identify the NAS message carried by the IP data packet according to the NAS IP address in the IP header, and forward the NAS message to the AMF through the N2 interface. Then, the AMF can process the NAS message and complete the 5G-RG PDU session establishment process based on the existing process. In this process, the AMF sends the PDU session identification information (such as the PDU session ID) to the W-5GAN through the N2 interface, so that the W-5GAN can obtain the PDU session ID of the PDU session.
  • PDU session identification information such as the PDU session ID
  • the 5G-RG After the 5G-RG receives a PDU session establishment acceptance message (PDU session establishment acceptance), the 5G-RG initiates a request message to the W-5GAN.
  • the request message may be a DHCP request message (DHCP request) or a DHCP information message (DHCP information).
  • the request message may carry identification information of the PDU session (such as a PDU session ID). This request message is used to request the W-5GAN to allocate the W-5GAN IP address corresponding to the PDU session.
  • the W-5GAN may allocate a W-5GAN IP address corresponding to the PDU session based on the PDU session ID in the request message, and store the W-5GAN IP address and the PDU session. ID correspondence.
  • the W-5GAN IP address corresponding to the PDU session is the address information of the W-5GAN corresponding PDU session.
  • the W-5GAN IP address corresponding to the PDU session can be used as the identification information of the PDU session, and can be used by the user plane to establish the correspondence between the session resources allocated by the W-5GAN for the PDU session and the PDU session.
  • the W-5GAN sends a response message (such as a DHCP ACK message) to the 5G-RG.
  • the response message may carry the address information of the W-5GAN corresponding PDU session.
  • the response message may also carry a PDU session ID corresponding to the W-5GAN IP address.
  • the address information of the W-5GAN corresponding PDU session is used as the target IP address of the 5G-RG sending the user plane data packet of the PDU session.
  • 5G RG sends user plane data packets.
  • the specific implementation is described in detail in the subsequent content.
  • the destination address required by the terminal device (5G RG or UE) to send user plane data packets can include two implementation forms: 1. The user plane address information of the corresponding terminal device (obtained through S602); 2. W-5GAN corresponds to the address information of the PDU session (obtained through S607-S608). Among them, the address information of the W-5GAN corresponding to the PDU session is a more granular address, which can directly indicate to which PDU session the user plane data packet is sent.
  • Method 1 A Generic Routing Encapsulation (GRE) header is encapsulated outside the user plane data packet, and an IP header is encapsulated outside the GRE header.
  • the GRE header can carry identification information (QoS flow ID, QFI) / reflective QoS indication (RQI) of the QoS flow.
  • QFI identification information
  • RQI reflective QoS indication
  • the source address in the IP header is the UE IP address
  • the destination address in the IP header is the address information of the PDU session corresponding to W-5GAN.
  • W-5GAN After W-5GAN receives the user plane data packet of the PDU session sent by 5G RG, W-5GAN can identify the PDU session based on the address information of the W-5GAN corresponding PDU session, and after removing the GRE header and IP header, use The tunnel corresponding to the identified PDU session sends user plane data packets of the PDU session.
  • the address information of the W-5GAN corresponding PDU session mentioned in the first method is obtained through S607-S608.
  • Method 2 The user plane data packet is encapsulated with a GRE header, and the GRE header is encapsulated with an IP header.
  • the GRE header may carry identification information (QoS flow ID, QFI) / (reflective QoS indication, RQI) of the QoS flow.
  • the GRE header carries the PDU session ID.
  • the source address in the IP header is the UE IP address, and the destination address in the IP header is the user plane address information.
  • W-5GAN After W-5GAN receives the user plane data packet sent by 5G RG, W-5GAN can identify the PDU session based on the PDU session ID, and after removing the GRE header and IP header, use the tunnel corresponding to the PDU session ID to send the PDU User plane packets for the session.
  • the user plane address information mentioned in the second method is obtained through S602.
  • the core network After the network side executes the UE access model determination process, the core network also needs to issue service management policies for the UE, such as QoS policies or local resource control policies, etc., which will detail how the network side is implemented based on Host UE / Guest UE. Different QoS control and local service control. The related technical solution is described below with reference to FIG. 13.
  • AMF2 may send a first message to the PCF, such as a policy association establishment / modification message.
  • the first message may include indication information of a device classification of the UE. It is not limited to Host UE / Guest UE instruction information, the device classification instruction information may also include device type indication information, and this application does not limit the manner in which the device classification is based.
  • the first message may be used to request the PCF to deliver a service management policy for the UE.
  • the service management policy may include at least one of a QoS policy and a local resource control policy.
  • the AMF2 may also send the indication information of the device classification of the UE to the SMF, and the SMF sends the first message carrying the indication information of the device classification to the PCF.
  • the PCF sends a second message to the AMF2 or the SMF, and the second message may include a service management policy for the UE determined by the PCF based on the device classification of the UE. That is to say, after receiving the first message sent by the AMF or SMF, the PCF can send a second message to the SMF or AMF.
  • AMF2 completes the registration of the UE.
  • W-5GAN assigns NAS IP address and optional user plane IP address.
  • S602 in the embodiment of FIG. 12.
  • the AMF2 sends the device classification indication information of the UE (such as Host UE / Guest UE indication information) and UE identification information to the AMF1.
  • the identification information of the UE may be at least one of a UE MAC address, a UE 5G GUTI, or a UE SUPI, or other identification information.
  • AMF2 may send the identification information of the UE to AMF1.
  • AMF1 can determine the classification of the UE, such as whether the UE is a Host UE or a Guest UE.
  • AMF1 can issue a service management policy for the UE, such as QoS, to the 5G-RG based on the UE's device classification instruction information (such as Host UE / Guest UE instruction information). Policies or local resource control policies.
  • AMF1 may issue a service management policy for the UE by sending a UE configuration update message (UE configuration update) or a NAS notification message.
  • the UE configuration update message or the NAS notification message may carry identification information of the UE and indication information of the device classification of the UE.
  • the local resource control policy may include a local device list, such as a local device MAC address list or a local device IP address list.
  • the local device can only allow Host UE access.
  • the local device can be a device such as a local printer.
  • the 5G-RG may correspondingly store identification information of the UE and indication information of the device classification of the UE (such as Host / Guest UE indication information).
  • the 5G-RG may also store the identification information of the UE and the service policy issued by the network side.
  • 5G-RG may control UE access according to a local resource control policy.
  • the specific process may include: 5G-RG may receive identification information of the UE sent by the AMF and indication information of the device classification of the UE, and then obtain The local resource access policy, and finally, the UE is controlled to access the local resource according to the UE classification information and the local resource access policy.
  • the 5G-RG may receive the local resource access policy of the 5G RG sent by the AMF or the SMF.
  • the 5G-RG may configure a local resource control policy.
  • the local resource control policy may include a local device MAC address list, or a local device IP address list, etc., where the local device may only allow Host UE access.
  • the local device can be a device such as a local printer.
  • the UE initiates a local service, that is, the UE initiates a request to 5G-RG, and the request carries identification information.
  • 5G-RG can identify the UE based on the identification information, and determine the classification of the UE (such as whether the UE is a host or not) based on the stored identification information of the UE and indication information of the device classification of the UE (such as Host / UE). ).
  • the 5G-RG can also reply the MAC address or IP address of the local device to the UE.
  • S710 The UE initiates a PDU session to the core network, and allocates a corresponding PDU session ID. After the PDU session is successfully established, the UE may send a request message to the W-5GAN to request the W-5GAN IP address corresponding to the PDU session allocated by the W-5GAN. For details, refer to S607-S609 in the embodiment of FIG. To repeat.
  • FIG. 6 illustrates a terminal 200 provided by some embodiments of the present application.
  • the terminal 200 may include: an input / output module (including an audio input / output module 218, a key input module 216, a display 220, etc.), a user interface 202, one or more terminal processors 204, a transmitter 208, and a receiver.
  • FIG. 6 uses the connection through a bus as an example. among them:
  • the communication interface 201 may be used for the terminal 200 to communicate with other communication devices, such as a base station.
  • the base station may be the network device 400 shown in FIG. 6.
  • the communication interface 201 refers to an interface between the terminal processor 204 and a transceiving system (consisting of a transmitter 208 and a receiver 210), such as the X1 interface in LTE.
  • the communication interface 201 may include: a Global System for Mobile Communication (GSM) (2G) communication interface, a Wideband Code Division Multiple Access (WCDMA) (3G) communication interface, and One or more of Long Term Evolution (LTE) (4G) communication interfaces, etc., may also be communication interfaces of 4.5G, 5G or future new air interfaces.
  • the terminal 200 may also be configured with a wired communication interface 201, such as a Local Access Network (Local Access Network, LAN) interface.
  • a wired communication interface 201 such as a Local Access Network (Local Access Network, LAN) interface.
  • the antenna 214 may be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 212 is configured to divide the mobile communication signal received by the antenna 214 into multiple channels and distribute the signals to multiple receivers 210.
  • the transmitter 208 may be configured to perform transmission processing on a signal output by the terminal processor 204, such as modulating the signal in a licensed frequency band or modulating a signal in an unlicensed frequency band.
  • the receiver 210 may be configured to perform receiving processing on a mobile communication signal received by the antenna 214. For example, the receiver 210 may demodulate a received signal that has been modulated on an unlicensed frequency band, and may also demodulate a received signal that is modulated on a licensed frequency band.
  • the transmitter 208 and the receiver 210 may be considered as a wireless modem.
  • the number of the transmitters 208 and the receivers 210 may be one or more.
  • the terminal 200 may further include other communication components, such as a GPS module, a Bluetooth module, a Wireless Fidelity (Wi-Fi) module, and the like.
  • the terminal 200 is not limited to the wireless communication signals described above, and the terminal 200 may also support other wireless communication signals, such as satellite signals, short-wave signals, and the like.
  • the terminal 200 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • the input / output module may be used to implement interaction between the terminal 200 and a user / external environment, and may mainly include an audio input / output module 218, a key input module 216, a display 220, and the like. In specific implementation, the input / output module may further include a camera, a touch screen, a sensor, and the like. The input and output modules communicate with the terminal processor 204 through the user interface 202.
  • the memory 206 is coupled to the terminal processor 204 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 206 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 206 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 206 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 206 can also store a user interface program.
  • the user interface program can realistically display the content image of the application program through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog boxes, and buttons. .
  • the memory 206 may be configured to store a program for implementing a signal transmission method provided by one or more embodiments of the present application on the terminal 200 side.
  • a signal transmission method provided by one or more embodiments of this application, please refer to the subsequent embodiments.
  • the terminal processor 204 may be used to read and execute computer-readable instructions. Specifically, the terminal processor 204 may be used to call a program stored in the memory 206, such as an implementation program of the signal transmission method provided by one or more embodiments of the present application on the terminal 200 side, and execute instructions included in the program.
  • the terminal 200 may be the terminal 103 in the wireless communication system 100 shown in FIG. 2 and may be implemented as a mobile device, a mobile station, a mobile unit, a wireless unit, a remote unit, and a user agent. , Mobile clients, and more.
  • the terminal 200 shown in FIG. 6 is only an implementation manner of the present application. In actual applications, the terminal 200 may further include more or fewer components, which is not limited herein.
  • FIG. 7 illustrates a home gateway 300 provided by some embodiments of the present application.
  • the home gateway 300 may include one or more processors 301, a memory 302, a wired home network interface 303, a wireless home network 305, and an Ethernet module 306. These components may be connected through the bus 304 or in other manners, and FIG. 7 takes the connection through the bus as an example. among them:
  • the Ethernet module 306 realizes a physical connection between the home gateway and an external network, and a user can remotely access and control the home internal network through the Internet.
  • the connection between the home gateway and the Internet can be realized by wired or mobile wireless communication.
  • Both the wireless home network interface 303 and the wired home network interface 305 belong to the networking mode of the home internal network. Among them, the twisted pair, telephone line, and power line are the most typical wired methods.
  • the wireless method is represented by IrDA, Bluetooth, IEEE802.11, Zigbee, UWB, etc. Wireless connectivity is the ideal way to implement a home network, avoiding rewiring inside the home.
  • the memory 302 is coupled to the processor 301 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 302 may include FLASH and SDRAM chips, and the FLASH chip may be used to store an embedded operating system in a home gateway, a Common Gateway Interface (CGI) gateway application, a home network server, and support for various services required File system.
  • the memory 302 may store an operating system, such as an embedded operating system such as uCOS, VxWorks, and RTLinux.
  • the memory 302 may also store a network communication program, which can be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 302 may be used to store the network access method provided by one or more embodiments of the present application, and the technical solution provided by the embodiment of FIG. 11-13 of the present application on the home gateway 300 side.
  • Implementation procedures Regarding the network access method provided by one or more embodiments of the present application, and the implementation of the technical solution provided by the embodiments of FIG. 11-13 of the present application, please refer to the related embodiments.
  • the processor 301 may be used to read and execute computer-readable instructions. Specifically, the processor 301 may be used to call a program stored in the memory 302, for example, a network access method provided by one or more embodiments of the present application, and the technical solution provided by the embodiment of Figs.
  • the gateway 300 implements the program and executes the instructions contained in the program.
  • the home gateway 300 may be 5G RG in the communication system architecture shown in FIGS. 1A-1C.
  • the home gateway 300 shown in FIG. 7 is only an implementation manner of the embodiment of the present application. In practical applications, the home gateway 300 may further include more or fewer components, which is not limited herein.
  • FIG. 8 illustrates an access network device 400 provided by some embodiments of the present application.
  • the access network device 400 may include one or more processors 401, a memory 403, and a communication interface 405. These components may be connected through the bus 404 or in other manners, and FIG. 8 takes the connection through the bus as an example. among them:
  • the communication interface 405 can be used for the access network device 400 to communicate with other communication devices, such as a home gateway and a core network device.
  • the home gateway may be the application server 300 shown in FIG. 7, and the core network device may be the core network device 500 shown in FIG. 9.
  • the communication interface 405 may include a wired communication interface, such as a wide area network (WAN) interface, a local area access network (LAN) interface, and the like.
  • WAN wide area network
  • LAN local area access network
  • the communication interface 405 may further include a wireless communication interface, such as a wireless local area network (WLAN) interface.
  • WLAN wireless local area network
  • the memory 403 is coupled to the processor 401 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 403 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 403 may store an operating system (hereinafter referred to as a system), for example, embedded operating systems such as uCOS, VxWorks, and RTLinux.
  • the memory 403 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 403 may be configured to store the network access method provided by one or more embodiments of the present application, and the technical solution provided by the embodiment of FIG. 11-13 of the present application is stored in the access network device 400.
  • Implementation procedures Regarding the network access method provided by one or more embodiments of the present application, and the implementation of the technical solution provided by the embodiments of FIG. 11-13 of the present application, please refer to the related embodiments.
  • the processor 401 may be used to read and execute computer-readable instructions. Specifically, the processor 401 may be used to call a program stored in the memory 405, such as a network access method provided by one or more embodiments of the present application, and a technical solution provided by the embodiment of FIG. 11-13 of the present application An implementation program on the network access device 400 side, and executes the instructions contained in the program.
  • the access network device 400 may be a W-5G AN in the system architecture shown in FIGS. 1A-1C.
  • the access network device 400 shown in FIG. 8 is only an implementation manner of the embodiment of the present application. In practical applications, the access network device 400 may further include more or fewer components, which is not limited herein.
  • FIG. 9 illustrates a core network device 500 provided by some embodiments of the present application.
  • the core network device 500 may include: one or more processors 501, a memory 503, and a communication interface 505. These components may be connected through the bus 504 or in other manners, and FIG. 9 takes the connection through the bus as an example. among them:
  • the communication interface 505 may be used for the core network device 500 to communicate with other communication devices, such as an access network device.
  • the access network device may be the access network device 400 shown in FIG. 8.
  • the communication interface 505 may include a wired communication interface, such as a wide area network (WAN) interface, a local area access network (LAN) interface, and the like.
  • WAN wide area network
  • LAN local area access network
  • the communication interface 505 may further include a wireless communication interface, such as a wireless local area network (WLAN) interface, and the like.
  • WLAN wireless local area network
  • the memory 503 is coupled to the processor 501 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 503 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 503 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as uCOS, VxWorks, and RTLinux.
  • the memory 503 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 503 may be used to store the network access method provided by one or more embodiments of the present application, and the technical solution provided by the embodiment of FIG. 11-13 of the present application is on the core network device 500 side.
  • Implementation procedures Regarding the network access method provided by one or more embodiments of the present application, and the implementation of the technical solution provided by the embodiments of FIG. 11-13 of the present application, please refer to the related embodiments.
  • the processor 501 may be used to read and execute computer-readable instructions. Specifically, the processor 501 may be used to call a program stored in the memory 505, for example, a network access method provided by one or more embodiments of the present application, and a technical solution provided by the embodiment of FIGS. 11-13 of the present application is at the core.
  • the network device 500 implements the program and executes the instructions contained in the program.
  • the core network device 500 may be a core network device in the system architecture shown in FIGS. 1A-1C and may be implemented as an AMF network element, a UDM network element, and the like.
  • the core network device 500 shown in FIG. 9 is only an implementation manner of the embodiment of the present application. In actual applications, the core network device 500 may further include more or fewer components, which is not limited herein.
  • FIG. 10 illustrates a communication system and a communication device provided by the present application.
  • the communication system 10 may include the following communication devices: a user equipment 60, a home gateway 70, an access network device 80, an access and mobility management network element 90, and a unified data management network element 100.
  • the communication system 10 and the communication device therein may be used to implement a network access method described in the embodiments corresponding to FIG. 2 to FIG. 4 respectively. Expand the description below.
  • each communication device can be used to implement a network access method described in the embodiments corresponding to FIG. 2 to FIG. 3, the specific implementation of each communication device can be as follows:
  • the user equipment 60 may include a processing unit 61 and a communication unit 63. among them:
  • the processing unit 61 may be configured to generate information to be sent by the user equipment 60 and analyze information received by the user equipment 60;
  • the communication unit 63 may be configured to obtain temporary identification information of the home gateway 70 connected to the user equipment 60;
  • the communication unit 63 may be further configured to send a request message to the access network device 80 to request access to the core network.
  • the request message may include: temporary identification information of the home gateway 70, and identification information of the user equipment 60.
  • the communication unit 63 may be configured to receive the temporary identification information of the home gateway 70 sent by the home gateway 70. Specifically, after establishing a connection with the home gateway 70, the communication unit 63 may obtain the temporary identification information of the home gateway 70 through an access network query protocol (ANQP). Specifically, the communication unit 63 may receive an ANQP message or an EAP message sent by the home gateway 70, and these messages include the temporary identity of the home gateway 70. Alternatively, the communication unit 63 may obtain the temporary identification information of the 5G-RG through an EAP message. Specifically, the 5G-RG carries a 5G-RG temporary identity in an EAP message sent to the UE. The EAP message may be an EAP-Request / Identity message or an EAP-request / 5G-start message.
  • ANQP access network query protocol
  • the communication unit 63 may receive an ANQP message or an EAP message sent by the home gateway 70, and these messages include the temporary identity of the home gateway 70.
  • the communication unit 63 may obtain
  • the home gateway 70 may include a processing unit 71 and a communication unit 73. among them:
  • the processing unit 71 may be configured to generate information to be sent by the home gateway 70 and analyze information received by the home gateway 70;
  • the communication unit 73 may be configured to send the temporary identification information of the home gateway 70 to the access network device 80.
  • the temporary identification information of the home gateway 70 may be used to index the context of the home gateway 70 on the core network side.
  • the temporary identification of the home gateway 70 may include a GUTI.
  • the communication unit 73 may send a PPPoE message or other control plane message, and the message may carry the temporary identification information of the home gateway 70.
  • the message may also carry the IP address of the UE.
  • the access network device 80 may include a processing unit 81 and a communication unit 83. among them:
  • the processing unit 81 may be configured to generate information to be sent by the access network device 80 and analyze information received by the access network device 80;
  • the communication unit 83 may be configured to obtain temporary identification information of the home gateway 70 connected to the user equipment 60;
  • the communication unit 83 may be further configured to send a message to the access and mobility management function network element 90, and the message includes: temporary identification information of the home gateway 70 and identification information of the user equipment 60.
  • the identification information of the user equipment 60 comes from the user equipment 60.
  • the communication unit 83 may be specifically configured to receive the temporary identification information sent by the user equipment 60, or receive the temporary identification information sent by the home gateway 70.
  • the processing unit 81 may be specifically configured to be based on the IP address of the user equipment 60 or the line identification or VLAN identification of the fixed network gateway connection or the connection of the user equipment 60.
  • the identification information of the entry point identifies the temporary identification information.
  • the access and mobility management network element 90 may include a processing unit 91 and a communication unit 93. among them:
  • the communication unit 93 may be configured to send a request message to the unified data management network element 100, where the request message includes identification information of the user equipment 60 and identification information of the home gateway 70 to which the user equipment 60 is connected;
  • the communication unit 93 may be further configured to receive indication information of the subscription type of the user equipment 60 sent by the unified data management network element 100;
  • the processing unit 91 may be configured to determine whether the user equipment 60 is allowed to access the home gateway 70 and / or the service management policy of the user equipment 60 according to the subscription type of the user equipment 60.
  • the processing unit 91 may be specifically configured to determine that the user equipment 60 is allowed to access the home gateway 70 if the subscription type of the user equipment 60 is a subscription user of the home gateway 70.
  • the processing unit 91 may be specifically configured to determine that the service management policy of the user equipment 60 is a service management policy corresponding to the non-subscribed user if the subscription type is a non-subscribed user; or, if the contract type is a subscription The user determines that the service management policy of the user equipment 60 is a service management policy corresponding to the contracted user.
  • the communication unit 93 may be further configured to receive the access instruction information sent by the unified data management network element 100, and / or the service management policy instruction information of the user equipment 60, and the access instruction information indicates the user equipment. Whether 60 is allowed to access the home gateway 70. In this way, the access and mobility management network element 90 can notify the UE whether it is accessible and what the subscription type is.
  • the communication unit 93 may be further configured to receive the subscription data of the home gateway 70 sent by the unified data management network element 100, and the processing unit 91 may be further configured to use the subscription data of the home gateway 70 and the identity of the user equipment 60.
  • the information determines whether the user equipment 60 is allowed to access the home gateway 70.
  • the manner in which the access and mobility management network element 90 determines the subscription type of the user equipment 60 and whether the user equipment 60 is allowed to access the home gateway 70 is the same as
  • the communication unit 93 may be further configured to send access instruction information to the access network device 80 or the home gateway 70, and / or instruction information of a service management policy of the user equipment 60, and the access instruction information indicates Whether the user equipment 60 is allowed to access the home gateway 70.
  • the identification information of the home gateway 70 carried in the request message sent by the communication unit 93 to the unified data management network element 100 is permanent identification information.
  • the communication unit 93 may be specifically configured to obtain temporary identification information of the home gateway 70, and obtain permanent identification information from the context of the home gateway 70 according to the temporary identification information.
  • the specific implementation of the communication unit 93 may include, but is not limited to: the communication unit 93 may be specifically configured to obtain the temporary identification information from the NAS signaling sent by the user equipment 60; or, the communication unit 93 may Specifically, it is used to obtain temporary identification information from the signaling sent by the access network device 80 accessed by the home gateway 70.
  • the temporary identification information included in the signaling sent by the access network device 80 is sent by the home gateway 70 to the access network device 80; or, the temporary identification information included in the signaling sent by the access network device 80 is to access the network.
  • the device 80 is identified based on the IP address of the user equipment 60 or the line identification or VLAN identification of the fixed network gateway connection, or the access point identification of the user equipment 60.
  • each functional unit of the access and mobility management network element 90 reference may be made to the method embodiments respectively corresponding to FIG. 2-3, and details are not described herein again.
  • the unified data management network element 100 may include a processing unit 101 and a communication unit 103. among them:
  • the communication unit 103 may be configured to receive a request message sent by the access and mobility management function network element 90, where the request message includes identification information of the user equipment 60 and identification information of the home gateway 70 to which the user equipment 60 is connected;
  • the processing unit 101 may be configured to determine subscription data of the home gateway 70 according to the identification information of the home gateway 70;
  • the processing unit 101 may be further configured to determine a subscription type of the user equipment 60 according to the subscription data of the home gateway 70 and the identification information of the user equipment 60;
  • the communication unit 103 may be further configured to send subscription type indication information to the access and mobility management function network element; the subscription type includes a subscriber or a non-subscriber of the home gateway 70.
  • the subscription data of the home gateway 70 may include identification information of the user equipment 60 of the subscriber of the home gateway 70.
  • the processing unit 101 may be specifically configured to determine that the user equipment 60 is a subscription user of the home gateway 70 if the identification information of the user equipment 60 belongs to the identification information of the user equipment 60 of the contracted user of the home gateway 70.
  • the subscription data of the home gateway 70 may include an access type of the home gateway 70, and the access type indicates whether the home gateway 70 allows non-subscribed users to access.
  • the processing unit 101 may also be used to determine whether the user equipment 60 is allowed to access the home gateway 70.
  • the details can be as follows:
  • the processing unit 101 may be specifically configured to determine that the user equipment 60 is allowed to access the home gateway 70 if the identification information of the user equipment 60 belongs to the identification information of the user equipment 60 of the contracted user of the home gateway 70.
  • the processing unit 101 may be specifically configured to determine that the user equipment 60 is allowed to access the home gateway 70 if the identification information of the user equipment 60 belongs to the identification information of the user equipment 60 of the contracted user of the home gateway 70.
  • the processing unit 101 may be specifically used if the identification information of the user equipment 60 does not belong to the identification information of the user equipment 60 of the subscribed user of the home gateway 70, but the access type of the home gateway 70 indicates that the home gateway 70 allows non-subscribed users to access, then It is determined that the user equipment 60 is allowed to access the home gateway 70.
  • the processing unit 101 may be specifically used if the identification information of the user equipment 60 does not belong to the identification information of the user equipment 60 of the contracted user of the home gateway 70, and the access type of the home gateway 70 indicates that the home gateway 70 does not allow non-subscribed users to access, It is determined that the user equipment 60 is not allowed to access the home gateway 70.
  • the communication unit 103 may be further configured to send access instruction information; the access instruction information indicates the user equipment 60 Whether access to the home gateway 70 is permitted.
  • the communication unit 103 may be further configured to send subscription data to an access and mobility management function network element.
  • the access and mobility management function network element can also determine the subscription type of the UE and whether the UE is allowed to access the home gateway 70 according to the subscription data of the home gateway 70.
  • the specific implementation of the user equipment 60, the home gateway 70, and the access network device 80 can refer to the foregoing content.
  • the subscription type of the UE and whether the UE is allowed to access the home gateway 70 are determined by the access and mobility management network element 90.
  • the specific implementation of the access and mobility management network element 90 may be as follows:
  • the access and mobility management network element 90 may include a processing unit 91 and a communication unit 93. among them:
  • the communication unit 93 may be configured to receive a request message sent by the access network device 80 (W-5G AN), and the request message includes identification information of the home gateway 70 and identification information of the user equipment 60;
  • the communication unit 93 may be further configured to obtain subscription data of the home gateway 70 according to the identification information of the home gateway 70;
  • the processing unit 91 may be configured to determine a subscription type of the user equipment 60 and / or a service management policy of the user equipment 60 according to the subscription data of the home gateway 70 and the identification information of the user equipment 60;
  • the communication unit 93 may be further configured to send the subscription type indication information and / or the service management policy indication information of the user equipment 60 to the access network device 80 or the home gateway 70; the subscription type includes a subscribed user or a non-subscribed user of the home gateway 70.
  • the communication unit 93 may be specifically configured to receive the subscription data of the home gateway 70 sent by the unified data management network element 100 according to the identification information of the home gateway 70.
  • the processing unit 91 in order to obtain subscription data of the home gateway 70, under the condition that the home gateway 70 includes the contract data of the home gateway 70 in the context of the home gateway 70, the processing unit 91 may be specifically configured to identify the home gateway 70 according to the identity of the home gateway 70. The information obtains the subscription data of the home gateway 70 from the context of the home gateway 70.
  • the subscription data of the home gateway 70 may include identification information of the user equipment 60 of the subscriber of the home gateway 70.
  • the processing unit 91 may be specifically configured to determine that the user equipment 60 is a subscription user of the home gateway 70 if the identification information of the user equipment 60 belongs to the identification information of the user equipment 60 of the subscription user of the home gateway 70 .
  • the subscription data further includes an access type of the home gateway 70, and the access type indicates whether the home gateway 70 allows non-subscribed users to access.
  • the processing unit 91 may be specifically configured to identify the user equipment 60 if the identification information of the user equipment 60 belongs to the user equipment 60 of the subscriber of the home gateway 70 Information, it is determined that the user equipment 60 is allowed to access the home gateway 70.
  • the processing unit 91 may be specifically configured to: Identification information, but if the access type of the home gateway 70 indicates that the home gateway 70 allows non-subscribed users to access, it is determined that the user equipment 60 is allowed to access the home gateway 70.
  • the processing unit 91 may be specifically configured to, if the identification information of the user equipment 60 does not belong to the user equipment 60 of the subscriber of the home gateway 70 Identification information, and the access type of the home gateway 70 indicates that the home gateway 70 does not allow non-subscribed users to access, it is determined that the user equipment 60 is not allowed to access the home gateway 70.
  • the communication unit 93 may be further configured to send access instruction information to the access network device 80 or the home gateway 70, and / or instruction information of a service management policy of the user equipment 60; the access instruction information indicates Whether the user equipment 60 is allowed to access the home gateway 70.
  • the identification information of the home gateway 70 carried in the request message sent by the access network device 80 is temporary identification information.
  • the communication unit 93 may also be configured to obtain temporary identification information of the home gateway 70, and determine subscription data from the context of the home gateway 70 according to the temporary identification information.
  • the communication unit 93 may be specifically used for the access and mobility management function network element to receive the temporary identification information sent by the user equipment 60; or, the access network device 80 receiving the access of the home gateway 70 The temporary identification information sent.
  • the temporary identification information sent by the access network device 80 may be sent by the home gateway 70 to the access network device 80, or may be the access network device 80 based on the IP address of the user device 60 or the line identifier connected to the fixed network gateway or The VLAN identification or the home gateway 70 access point identification is identified.
  • each communication device can be as follows:
  • the access network device 80 may include a processing unit 81 and a communication unit 83. among them:
  • the communication unit 83 may be configured to receive a request message, where the request message includes identification information of a packet data unit PDU session.
  • the communication unit 83 may be further configured to send a response message to the terminal device, where the response message includes address information of the access network device corresponding to the PDU session.
  • the address information of the access network device corresponding to the PDU session is used as a target address of a user plane data packet of the PDU session sent by the home gateway 70.
  • the processing unit 81 may be configured to store a correspondence between the identification information of the PDU session and the address information of the access network device.
  • the communication unit 83 may be further configured to receive the identification information of the home gateway 70.
  • the processing unit 81 may be configured to allocate an address to the home gateway 70 according to the identification information of the home gateway 70.
  • the communication unit 83 may be further configured to send the address of the home gateway 70 to the home gateway 70; the address of the home gateway 70 is used as the source address of the user plane data packet of the PDU session sent by the home gateway 70.
  • the communication unit 83 may be further configured to receive a user plane data packet of the PDU session sent by the home gateway 70.
  • the destination address included in the user plane data packet is a corresponding PDU of the access network device. Address information for the session.
  • the processing unit 81 may be further configured to identify the PDU session based on the address information of the access network device corresponding to the PDU session.
  • the processing unit 81 may be configured to allocate user plane address information of the home network 70 corresponding to the access network device.
  • the communication unit 83 may be further configured to send a message to the home gateway 70, where the message includes the user plane address information; the user plane address information is used for the purpose of a user plane data packet of a PDU session sent by the home gateway 70 address.
  • the communication unit 83 may be further configured to receive the identification information of the home gateway 70.
  • the processing unit 81 may be further configured to allocate an address to the home gateway 70 according to the identification information of the home gateway 70.
  • the communication unit 83 may be further configured to send the address of the home gateway 70 to the home gateway 70; the address of the home gateway 70 is used as the source address of the user plane data packet of the PDU session sent by the home gateway 70.
  • the communication unit 83 may be further configured to receive the user plane data packet sent by the home gateway 70.
  • the destination address in the user plane data packet is address information of the user plane of the access network device. ;
  • the user plane data packet further includes identification information of the PDU session.
  • the processing unit 81 may be further configured to identify the PDU session based on the identification information of the PDU session.
  • the communication unit 83 may be further configured to send the user plane data packet by using the identified tunnel corresponding to the PDU session.
  • the home gateway 70 may include a processing unit 71 and a communication unit 73. Among them (the user equipment 60 can be similarly implemented, and is not described in detail):
  • the communication unit 73 may be configured to send a request message to the access network device 80, where the request message includes identification information of a packet data unit PDU session.
  • the communication unit 73 may be further configured to receive a response message sent by the access network device 80, where the response message includes address information of the access network device corresponding to the PDU session.
  • the address information of the access network device corresponding to the PDU session is used as a target address of a user plane data packet of the PDU session sent by the home gateway 70.
  • the communication unit 73 may be further configured to send the identification information of the home gateway 70.
  • the communication unit 73 may be further configured to receive an address of the home gateway 70; the address of the home gateway 70 is used as a source address of a user plane data packet of the PDU session sent by the home gateway 70.
  • the communication unit 73 may be further configured to send a user plane data packet of the PDU session, and the destination address included in the user plane data packet is address information of the corresponding PDU session of the access network device.
  • the processing unit 71 may be further configured to identify the PDU session based on the address information of the access network device corresponding to the PDU session.
  • the communication unit 73 may be further configured to receive a message sent by the home gateway 70, where the message includes the user plane address information; the user plane address information is used as a PDU sent by the home gateway 70 The destination address of the user plane packet for the session.
  • the communication unit 73 may be further configured to send the identification information of the home gateway 70.
  • the communication unit 73 may be further configured to receive an address of the home gateway 70; the address of the home gateway 70 is used as a source address of a user plane data packet of a PDU session sent by the home gateway 70.
  • the communication unit 73 may be further configured to send the user plane data packet, and a destination address in the user plane data packet is address information of a user plane of the access network device; the user plane data packet The identification information of the PDU session is also included.
  • the communication system 10 may further include a policy control network element 200 (not shown) and a session management network element 300 (not shown)
  • a policy control network element 200 not shown
  • a session management network element 300 not shown
  • the policy control network element 200 may include a processing unit 201 and a communication unit 203. among them:
  • the communication unit 203 may be configured to receive a first message sent by the access and mobility management function network element or the session management network element 300, where the first message includes indication information of a device type of the user equipment;
  • the communication unit 203 may be further configured to send a second message to the session management network element 300, where the second message includes a service management policy of the user equipment determined by the policy control network element based on the device type indication information of the user equipment .
  • the service management policy includes a QoS policy and / or a local resource access policy of a home gateway.
  • the communication unit 203 may be further configured to send the local resource access policy to the access and mobility management function network element.
  • the session management network element 300 may include a processing unit 301 and a communication unit 303. among them:
  • the communication unit 303 may be further configured to receive identification information of the user equipment and indication information of a device type of the user equipment sent by the access and mobility management function network element, and obtain a local resource access policy of the home gateway.
  • the processing unit 301 may be configured to control the user equipment to access local resources according to the device type indication information of the user equipment and the local resource access policy.
  • the communication unit 303 may be specifically configured to receive a local resource access policy of the home gateway sent by the access and mobility management function network element or the session management network element.
  • the processing unit 301 may be configured to configure the local resource access policy.
  • the local resource access policy includes address information of a device connected to the home gateway.
  • the communication unit 303 may be further configured to receive a request message sent by the user equipment, where the request message includes identification information of the user equipment.
  • the processing unit 301 may be specifically configured to determine the device type of the user equipment according to the identification information of the user equipment and the device type indication information of the user equipment, and connect the device type of the user equipment to the local resource.
  • the access policy controls the user equipment to access local resources.
  • the 5GC can distinguish different access models of user equipment based on the subscription data of the home gateway to facilitate subsequent different service control, such as different QoS control. .
  • the network side can prioritize access for contracted users and restrict access for non-subscribed users. In this way, 5GC can support more access methods, and improve the convergence of fixed and mobile networks.
  • the communication system 10 and the communication device therein may also be used to implement another network access method described in the embodiment of FIG. 5.
  • the communication system 10 and the communication device therein can be used to implement the network access method described in the embodiment of FIG. 5, the specific implementation of each communication device can refer to the embodiment of FIG. 5, and details are not described herein again.
  • the communication system 10 shown in FIG. 10 may be implemented as the system architecture shown in FIGS. 1A-1C.
  • the home gateway 70 may be 5G RG in the system architecture shown in FIGS. 1A-1C
  • the user equipment 60 may be a UE connected to the 5G RG
  • the access network device 80 may be in the system architecture shown in FIGS. 1A-1C.
  • the access and mobility management network element 90 may be AMF
  • the unified data management network element 100 may be UDM.
  • the access and mobility management network element 90 may include an AMF serving a user equipment and an AMF serving a home gateway.
  • the two AMFs may be the same AMF or different AMFs.
  • the unified data management network element 100 may include a UDM registered by a user equipment and a UDM registered by a home gateway.
  • the two UDMs may be the same UDM or different UDMs.
  • 5GC can support more access methods and improve the convergence of fixed and mobile networks.
  • the processes may be completed by a computer program instructing related hardware.
  • the program may be stored in a computer-readable storage medium. It may include the processes of the method embodiments described above.
  • the foregoing storage media include: ROM or random storage memory RAM, magnetic disks, or optical discs, which can store various program code media.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Selon certains modes de realisation, la présente invention concerne un procédé d'accès à un réseau. Le procédé peut comporter les étapes suivantes: un élément de réseau de gestion de données reçoit un message de demande émis par un élément de réseau de fonction de gestion d'accès et de mobilité, le message de demande comportant des informations d'identification d'un équipement d'utilisateur (UE) et des informations d'identification d'une passerelle résidentielle à laquelle l'UE est connecté; l'élément de réseau de gestion de données détermine des données d'abonnement de la passerelle résidentielle d'après les informations d'identification de la passerelle résidentielle; l'élément de réseau de gestion de données détermine le type d'abonnement de l'UE d'après les données d'abonnement de la passerelle résidentielle et les informations d'identification de l'UE; l'élément de réseau de gestion de données envoie des informations d'indication du type d'abonnement à l'élément de réseau de fonction de gestion d'accès et de mobilité, le type d'abonnement comportant un abonné ou non-abonné de la passerelle résidentielle. La solution permet à un UE d'accéder à des 5GC au moyen d'une passerelle résidentielle, de sorte que les 5GC peuvent prendre en charge plus de modes d'accès, améliorant ainsi la convergence d'un réseau fixe et d'un réseau mobile.
PCT/CN2019/086411 2018-05-22 2019-05-10 Procédé d'accès à un réseau, dispositif associé, et système WO2019223557A1 (fr)

Priority Applications (2)

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EP19808381.8A EP3817423B1 (fr) 2018-05-22 2019-05-10 Procédé d'accès à un réseau, dispositif associé, et système
US17/100,457 US11399331B2 (en) 2018-05-22 2020-11-20 Network access method, related apparatus, and system

Applications Claiming Priority (4)

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CN201810497274 2018-05-22
CN201810497274.4 2018-05-22
CN201810672363.8 2018-06-26
CN201810672363.8A CN110519826B (zh) 2018-05-22 2018-06-26 网络接入方法、相关装置及系统

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