WO2024050736A1

WO2024050736A1 - Communication method, apparatus and system, electronic device, and medium

Info

Publication number: WO2024050736A1
Application number: PCT/CN2022/117656
Authority: WO
Inventors: 吴锦花
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2024-03-14
Also published as: CN115868125A

Abstract

The present disclosure provides a communication method, applied to a satellite. The satellite is used as an access point for a terminal to access a core network in a non-3GPP access manner by means of the satellite. The method comprises: by means of a Layer 2 connection with a terminal, receiving an EAP data packet sent by the terminal, wherein the Layer 2 connection is established when the terminal determines that the connection of accessing a core network in a non-3 GPP access manner by means of a satellite is a trusted connection; encapsulating the EAP data packet and identification information of the satellite into a first message, wherein the EAP data packet comprises a network access identifier; and sending the first message to a satellite access gateway function network element in an access network, wherein the satellite access gateway function network element provides a trusted non-3GPP gateway function, the first message is used by the satellite access gateway function network element to generate a registration message according to the first message, and the registration message comprises the identification information.

Description

通信方法、装置、***、电子设备及介质Communication methods, devices, systems, electronic equipment and media

技术领域Technical field

本公开涉及通信领域，尤其涉及一种通信方法、装置、***、电子设备及介质。The present disclosure relates to the field of communication, and in particular, to a communication method, device, system, electronic equipment and medium.

背景技术Background technique

在现有的3GPP定义的卫星接入解决方案中，卫星NG-RAN(NG-RAN，Next Generation Radio Access Network，新一代接入网络)是通过NR(New Radio，新空口)向终端提供卫星接入的接入网络。然而在相关技术中，对于不支持NR的卫星，没有现有的3GPP网络解决方案来为其提供服务，以使得终端通过该卫星接入核心网。Among the existing satellite access solutions defined by 3GPP, satellite NG-RAN (NG-RAN, Next Generation Radio Access Network, new generation access network) provides satellite access to terminals through NR (New Radio, new air interface). into the access network. However, in related technologies, there is no existing 3GPP network solution to provide services for satellites that do not support NR, so that terminals can access the core network through the satellite.

发明内容Contents of the invention

为克服相关技术中存在的问题，本公开提供一种通信方法、装置、***、电子设备及介质。In order to overcome problems existing in related technologies, the present disclosure provides a communication method, device, system, electronic equipment and medium.

根据本公开实施例的第一方面，提供一种通信方法，应用于卫星，所述卫星作为接入点，用于终端通过所述卫星以非3GPP接入方式接入核心网，所述方法包括：According to a first aspect of an embodiment of the present disclosure, a communication method is provided, which is applied to a satellite. The satellite serves as an access point for a terminal to access the core network through the satellite in a non-3GPP access mode. The method includes :

通过与所述终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；Receive the EAP data packet sent by the terminal through the layer 2 connection with the terminal. The layer 2 connection is when the terminal determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection. Established;

将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；Encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述第一消息用于所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。The first message is sent to the satellite access gateway function network element in the access network. The satellite access gateway function network element provides a trusted non-3GPP gateway function. The first message is used for the satellite access network element. The gateway function network element generates a registration message according to the first message, and the registration message includes the identification information.

根据本公开实施例的第二方面，提供一种通信方法，应用于卫星接入网关功能网元，所述方法包括：According to a second aspect of the embodiment of the present disclosure, a communication method is provided, which is applied to a satellite access gateway functional network element. The method includes:

接收卫星发送的第一消息，所述第一消息为所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接；Receive the first message sent by the satellite. The first message is encapsulated by the satellite according to the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP gateway. Function, the terminal accessing the core network through the satellite in a non-3GPP access mode is a trusted connection;

根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。A registration message is generated according to the first message, and the registration message includes the identification information.

根据本公开实施例的第三方面，提供一种通信方法，应用于核心网的目标网元，所述方法包括：According to a third aspect of the embodiment of the present disclosure, a communication method is provided, applied to a target network element of a core network, and the method includes:

接收卫星接入网关功能网元发送的注册消息，所述注册消息是根据第一消息生成的，所述第一消息是所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接。Receive a registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. , the satellite access gateway function network element provides a trusted non-3GPP gateway function, and the terminal accesses the core network through the satellite in a non-3GPP access mode, which is a trusted connection.

根据本公开实施例的第四方面，提供一种通信方法，应用于终端，所述方法包括：According to a fourth aspect of the embodiments of the present disclosure, a communication method is provided, applied to a terminal, and the method includes:

在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与所述卫星的层二连接；When it is determined that accessing the core network through a satellite in a non-3GPP access mode is a trusted connection, establish a Layer 2 connection with the satellite;

通过所述层二连接向所述卫星发送EAP数据包，所述EAP数据包用于所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息，并将所述第一消息发送至所述卫星接入网关功能网元。Send an EAP data packet to the satellite through the layer 2 connection. The EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message, and send the first message to the satellite. The message is sent to the satellite access gateway functional network element.

根据本公开实施例的第五方面，提供一种通信方法，应用于通信***，所述通信***包括卫星、卫星接入网关功能网元以及目标网元，所述卫星作为接入点，以供终端通过所述卫星以非3GPP接入方式接入核心网，所述方法包括：所述卫星通过与终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；According to the fifth aspect of the embodiment of the present disclosure, a communication method is provided, which is applied to a communication system. The communication system includes a satellite, a satellite access gateway functional network element, and a target network element. The satellite serves as an access point for The terminal accesses the core network through the satellite in a non-3GPP access mode. The method includes: the satellite receives the EAP data packet sent by the terminal through a layer 2 connection with the terminal, and the layer 2 connection is the The terminal establishes a trusted connection when it determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection;

所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message, and the EAP data packet includes a network access identifier;

所述卫星将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能；The satellite sends the first message to a satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function;

所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息；The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes the identification information;

所述卫星接入网关功能网元将所述注册消息发送至所述目标网元。The satellite access gateway function network element sends the registration message to the target network element.

根据本公开实施例的第六方面，提供一种通信装置，应用于卫星，所述卫星作为接入点，用于终端通过所述卫星以非3GPP接入方式接入核心网，所述装置包括：According to a sixth aspect of the embodiment of the present disclosure, a communication device is provided, which is applied to a satellite. The satellite serves as an access point for a terminal to access the core network in a non-3GPP access mode through the satellite. The device includes :

第一接收模块，被配置为通过与所述终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；The first receiving module is configured to receive the EAP data packet sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is used by the terminal when determining to access the satellite in a non-3GPP access mode. The access to the core network is established when a trusted connection is established;

封装模块，被配置为将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；An encapsulation module configured to encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

第一发送模块，被配置为将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述第一消息用于所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。The first sending module is configured to send the first message to a satellite access gateway functional network element in the access network. The satellite access gateway functional network element provides a trusted non-3GPP gateway function. The first The message is used by the satellite access gateway function network element to generate a registration message according to the first message, and the registration message includes the identification information.

根据本公开实施例的第七方面，提供一种通信装置，应用于卫星接入网关功能网元，所述装置包括：According to the seventh aspect of the embodiment of the present disclosure, a communication device is provided, applied to a satellite access gateway functional network element, and the device includes:

第二接收模块，被配置为接收卫星发送的第一消息，所述第一消息为所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接；The second receiving module is configured to receive the first message sent by the satellite. The first message is encapsulated by the satellite according to the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway function The network element provides a trusted non-3GPP gateway function, and the terminal's access to the core network through the satellite in a non-3GPP access mode is a trusted connection;

生成模块，被配置为根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。A generating module configured to generate a registration message according to the first message, where the registration message includes the identification information.

根据本公开实施例的第八方面，提供一种通信装置，应用于核心网的目标网元，所述方法包括：According to an eighth aspect of the embodiments of the present disclosure, a communication device is provided, applied to a target network element of a core network, and the method includes:

第三接收模块，被配置为接收卫星接入网关功能网元发送的注册消息，所述注册消息是根据第一消息生成的，所述第一消息是所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接。The third receiving module is configured to receive a registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is the EAP data packet sent by the satellite based on the terminal and The identification information of the satellite is encapsulated, the satellite access gateway functional network element provides a trusted non-3GPP gateway function, and the terminal accesses the core network through the satellite in a non-3GPP access mode is a trusted connection.

根据本公开实施例的第九方面，提供一种通信装置，应用于终端，所述装置包括：According to a ninth aspect of the embodiment of the present disclosure, a communication device is provided, applied to a terminal, and the device includes:

确定模块，被配置为在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与所述卫星的层二连接；A determination module configured to establish a layer 2 connection with the satellite when it is determined that accessing the core network through a satellite in a non-3GPP access mode is a trusted connection;

第三发送模块，被配置为通过所述层二连接向所述卫星发送EAP数据包，所述EAP数据包用于所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息，并将所述第一消息发送至所述卫星接入网关功能网元。The third sending module is configured to send an EAP data packet to the satellite through the layer 2 connection. The EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message, and sends the first message to the satellite access gateway functional network element.

根据本公开实施例的第十方面，提供一种通信***，所述通信***包括卫星、卫星接入网关功能网元以及目标网元，所述卫星作为接入点，以供终端通过所述卫星以非3GPP接入方式接入核心网；According to a tenth aspect of the embodiment of the present disclosure, a communication system is provided. The communication system includes a satellite, a satellite access gateway functional network element, and a target network element. The satellite serves as an access point for terminals to pass through the satellite. Access the core network using non-3GPP access methods;

所述卫星用于通过与终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；The satellite is used to receive EAP data packets sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is used for the terminal to determine whether it is possible to access the core network through the satellite in a non-3GPP access mode. Established during the letter connection;

所述卫星用于将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；The satellite is configured to encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

所述卫星用于将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能；The satellite is used to send the first message to a satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function;

所述卫星接入网关功能网元用于根据所述第一消息生成注册消息，所述注册消息包括所述标识信息；The satellite access gateway functional network element is configured to generate a registration message according to the first message, where the registration message includes the identification information;

所述卫星接入网关功能网元用于将所述注册消息发送至所述目标网元。The satellite access gateway function network element is used to send the registration message to the target network element.

根据本公开实施例的第十一方面，提供一种电子设备，包括：According to an eleventh aspect of the embodiments of the present disclosure, an electronic device is provided, including:

处理器；processor;

用于存储处理器可执行指令的存储器；Memory used to store instructions executable by the processor;

其中，所述处理器被配置为执行本公开第一方面中任一项所述方法的步骤，或者本公开第二方面中任一项所述方法的步骤，或者本公开第三方面中任一项所述方法的步骤，或者本公开第四方面中任一项所述方法的步骤。Wherein, the processor is configured to perform the steps of the method described in any one of the first aspects of the disclosure, or the steps of the method described in any one of the second aspects of the disclosure, or any one of the third aspects of the disclosure. The steps of the method described in the item, or the steps of the method described in any one of the fourth aspects of the present disclosure.

根据本公开实施例的第十二方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开第一方面中任一项所述方法的步骤，或者本公开第二方面中任一项所述方法的步骤，或者本公开第三方面中任一项所述方法的步骤，或者本公开第四方面中任一项所述方法的步骤。According to a twelfth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium on which computer program instructions are stored. When the program instructions are executed by a processor, the method of any one of the methods of the first aspect of the present disclosure is implemented. Steps, or steps of the method described in any one of the second aspect of the disclosure, or steps of the method described in any one of the third aspect of the disclosure, or steps of the method described in any one of the fourth aspect of the disclosure.

本公开的实施例提供的技术方案中，通过将卫星作为接入网的接入点，通过层二连接接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求，进而使得终端通过卫星以可信的非3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务并获知卫星的标识消息。In the technical solution provided by the embodiments of the present disclosure, the satellite is used as the access point of the access network, the EAP data packet sent by the terminal is received through the layer 2 connection, and the data packet and the identification information used to identify the satellite are encapsulated, The satellite access gateway function network element generates a registration request based on the first message, thereby allowing the terminal to access the core network through the satellite in a trusted non-3GPP access mode, so that the mobile network can provide terminals under satellites that do not support NR. service and obtain the identification message of the satellite.

应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and do not limit the present disclosure.

附图说明Description of the drawings

本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

图1A示例性示出了本公开实施例适用的一种基于卫星的通信架构示意图。FIG. 1A exemplarily shows a schematic diagram of a satellite-based communication architecture applicable to embodiments of the present disclosure.

图1B示例性示出了本公开实施例适用的另一种基于卫星的通信架构示意图。FIG. 1B exemplarily shows a schematic diagram of another satellite-based communication architecture applicable to embodiments of the present disclosure.

图2是根据一示例性实施例示出的一种通信方法的流程图。Figure 2 is a flow chart of a communication method according to an exemplary embodiment.

图3是根据一示例性实施例示出的一种通信方法的流程图。Figure 3 is a flowchart of a communication method according to an exemplary embodiment.

图4是根据一示例性实施例示出的一种通信方法的流程图。Figure 4 is a flowchart of a communication method according to an exemplary embodiment.

图5是根据一示例性实施例示出的一种通信方法的流程图。Figure 5 is a flowchart of a communication method according to an exemplary embodiment.

图6是根据一示例性实施例示出的一种通信方法的流程图。Figure 6 is a flow chart of a communication method according to an exemplary embodiment.

图7是根据一示例性实施例示出的一种通信方法的流程图。Figure 7 is a flowchart of a communication method according to an exemplary embodiment.

图8是根据一示例性实施例示出的一种通信方法的流程图。Figure 8 is a flowchart of a communication method according to an exemplary embodiment.

图9是根据一示例性实施例示出的一种通信方法的流程图。Figure 9 is a flow chart of a communication method according to an exemplary embodiment.

图10是根据一示例性实施例示出的一种通信方法的流程图。Figure 10 is a flowchart of a communication method according to an exemplary embodiment.

图11是根据一示例性实施例示出的一种通信***的示意图。Figure 11 is a schematic diagram of a communication system according to an exemplary embodiment.

图12是根据一示例性实施例示出的一种通信方法的流程图。Figure 12 is a flowchart of a communication method according to an exemplary embodiment.

图13是根据一示例性实施例示出的一种通信方法的流程图。Figure 13 is a flowchart of a communication method according to an exemplary embodiment.

图14是根据一示例性实施例示出的一种通信方法的交互图。Figure 14 is an interaction diagram illustrating a communication method according to an exemplary embodiment.

图15是根据一示例性实施例示出的一种通信装置的框图。Figure 15 is a block diagram of a communication device according to an exemplary embodiment.

图16是根据一示例性实施例示出的一种通信装置的框图。Figure 16 is a block diagram of a communication device according to an exemplary embodiment.

图17是根据一示例性实施例示出的一种通信装置的框图。Figure 17 is a block diagram of a communication device according to an exemplary embodiment.

图18是根据一示例性实施例示出的一种通信装置的框图。Figure 18 is a block diagram of a communication device according to an exemplary embodiment.

图19是根据一示例性实施例示出的一种电子设备的框图。FIG. 19 is a block diagram of an electronic device according to an exemplary embodiment.

图20是根据一示例性实施例示出的一种网络设备的框图。Figure 20 is a block diagram of a network device according to an exemplary embodiment.

具体实施方式Detailed ways

这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

需要说明的是，本申请中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。It should be noted that all actions to obtain signals, information or data in this application are performed under the premise of complying with the corresponding data protection regulations and policies of the country where the location is located, and with authorization from the owner of the corresponding device.

为了解决相关技术中存在的问题，本公开提供一种通信方法、装置、***、电子设备及介质。In order to solve the problems existing in related technologies, the present disclosure provides a communication method, device, system, electronic equipment and medium.

本公开实施例可以适用于于4G(***移动通信***)演进***，如长期演进(long term evolution，LTE)***，或者还可以为5G(第五代移动通信***)***，如采用新型无线入技术(new radio access technology，New RAT)的接入网；云无线接入网(Cloud Radio Access Network，CRAN)等通信***。Embodiments of the present disclosure may be applied to 4G (fourth generation mobile communication system) evolution systems, such as long term evolution (LTE) systems, or may also be applied to 5G (fifth generation mobile communication system) systems, such as using new Wireless access technology (new radio access technology, New RAT) access network; Cloud Radio Access Network (Cloud Radio Access Network, CRAN) and other communication systems.

图1A示例性示出了本公开实施例适用的一种基于卫星的通信架构示意图，应理解，本公开实施例并不限于图1A所示的***中，此外，图1A中的装置可以是硬件，也可以是从功能上划分的软件或者以上二者结合后的结构。如图1A所示，本公开实施例提供的***架构包括终端、卫星、卫星接入网关功能网元、移动性管理网元、会话管理网元、用户面网元、鉴权服务器功能网元、策略控制功能网元、统一数据管理网元以及数据网络(data network，DN)。卫星、卫星接入网关功能网元构成可信非3GPP接入网(Trusted Non-3GPP Access)，卫星作为接入点，用于终端通过所述卫星以可信非3GPP接入方式接入核心网。FIG. 1A exemplarily shows a schematic diagram of a satellite-based communication architecture applicable to the embodiment of the present disclosure. It should be understood that the embodiment of the present disclosure is not limited to the system shown in FIG. 1A. In addition, the device in FIG. 1A may be hardware. , it can also be functionally divided software or a structure that combines the above two. As shown in Figure 1A, the system architecture provided by the embodiment of the present disclosure includes terminals, satellites, satellite access gateway functional network elements, mobility management network elements, session management network elements, user plane network elements, authentication server functional network elements, Policy control function network element, unified data management network element and data network (DN). Satellites and satellite access gateway functional network elements constitute a Trusted Non-3GPP Access network (Trusted Non-3GPP Access). Satellites serve as access points for terminals to access the core network in a trusted non-3GPP access mode through the satellites. .

数据网络(data network，DN)，为用户提供数据传输服务，可以是协议数据单元(Protocol Data Unit，PDN)网络，如因特网(internet)、IP多媒体业务(IP Multi-media Service，IMS)等。Data network (DN) provides data transmission services to users, and can be a Protocol Data Unit (PDN) network, such as the Internet, IP Multi-media Service (IMS), etc.

参见图1B所示的5G的***架构示意图：移动性管理网元可以包括是5G中的接入与移动性管理实体(access and mobility management function，AMF)。移动性管理网元负责移动网络中终端的接入与移动性管理。其中，AMF负责终端接入与移动性管理，NAS消息路由，会话管理功能实体(session management function，SMF)选择等。AMF可以作为中间网元，用来传输终端和SMF之间的会话管理消息。Refer to the schematic diagram of the 5G system architecture shown in Figure 1B: the mobility management network element may include an access and mobility management function (AMF) in 5G. The mobility management network element is responsible for the access and mobility management of terminals in the mobile network. Among them, AMF is responsible for terminal access and mobility management, NAS message routing, session management function entity (session management function, SMF) selection, etc. AMF can be used as an intermediate network element to transmit session management messages between the terminal and SMF.

会话管理网元，负责转发路径管理，如向用户面网元下发报文转发策略，指示用户面网元根据报文转发策略进行报文处理和转发。会话管理网元可以是5G中的SMF(如图1B所示)，负责会话管理，如会话创建/修改/删除，用户面网元选择以及用户面隧道信息的分配和管理等。The session management network element is responsible for forwarding path management, such as delivering packet forwarding policies to user plane network elements and instructing user plane network elements to process and forward packets according to the packet forwarding policy. The session management network element can be the SMF in 5G (as shown in Figure 1B), which is responsible for session management, such as session creation/modification/deletion, user plane network element selection, and allocation and management of user plane tunnel information.

用户面网元可以是5G架构中的用户面功能实体(user plane function，UPF)，如图1B所示。UPF负责报文处理与转发。The user plane network element can be a user plane function (UPF) in the 5G architecture, as shown in Figure 1B. UPF is responsible for message processing and forwarding.

本公开实施例提供的***架构中还可以包括数据管理网元，用于处理终端设备标识，接入鉴权，注册以及移动性管理等。在5G通信***中，该数据管理网元可以是统一数据管理(unified data management，UDM)网元。The system architecture provided by the embodiments of the present disclosure may also include a data management network element for processing terminal device identification, access authentication, registration, mobility management, etc. In the 5G communication system, the data management network element may be a unified data management (UDM) network element.

本公开实施例提供的***架构中还可以包括策略控制功能实体(policy control function，PCF)或者为策略计费控制功能实体(policy and charging control function，PCRF)。其中，PCF或者PCRF负责策略控制决策和基于流计费控制。The system architecture provided by the embodiments of the present disclosure may also include a policy control function entity (policy control function, PCF) or a policy charging control function entity (policy and charging control function, PCRF). Among them, PCF or PCRF is responsible for policy control decisions and flow-based charging control.

本公开实施例提供的***架构中还可以包括鉴权服务器功能(Authentication Server Function，AUSF)，AUSF用于接收AMF对UE进行身份验证的请求，通过向UDM请求密钥，再将UDM下发的密钥转发给AMF进行鉴权处理。The system architecture provided by this disclosed embodiment may also include an authentication server function (AUSF). The AUSF is used to receive the AMF's request for identity verification of the UE, request the key from the UDM, and then issue the UDM The key is forwarded to AMF for authentication processing.

本公开实施例提供的***架构中还可以包括网络存储网元，用于维护网络中所有网络功能服务的实时信息。在5G通信***中，该网络存储网元可以是网络存储库功能(network repository function，NRF)网元。网络存储库网元中可以存储了很多网元的信息，比如SMF的信息，UPF的信息，AMF的信息等。网络中AMF、SMF、UPF等网元都可能与NRF相连，一方面可以将自身的网元信息注册到NRF，另一方面其他网元可以从NRF中获得已经注册过的网元的信息。其他网元(比如AMF)可以根据网元类型、数据网络标识、未知区域信息等，通过向NRF请求获得可选的网元。如果域名***(domain name system，DNS)服务器集成在NRF，那么相应的选择功能网元(比如AMF)可以向NRF请求获得要选择的其他网元(比如SMF)。The system architecture provided by the embodiments of the present disclosure may also include network storage network elements for maintaining real-time information of all network function services in the network. In the 5G communication system, the network storage network element may be a network repository function (NRF) network element. Network repository network elements can store a lot of network element information, such as SMF information, UPF information, AMF information, etc. Network elements such as AMF, SMF, and UPF in the network may be connected to the NRF. On the one hand, they can register their own network element information to the NRF. On the other hand, other network elements can obtain the information of already registered network elements from the NRF. Other network elements (such as AMF) can obtain optional network elements by requesting NRF based on network element type, data network identification, unknown area information, etc. If the domain name system (DNS) server is integrated in the NRF, then the corresponding selection function network element (such as AMF) can request from the NRF to obtain other network elements to be selected (such as SMF).

卫星(Satellite)作为可信非3GPP接入网络(trusted non-3GPP access network，TNAN)的一个具体实现形式，还可以称为可信非3GPP接入节点(trusted non-3GPP access point，TNAP)，为终端提供无线接入服务。在该TNAN中还包括卫星接入网关功能网元(Satellite Access Gateway Function，S-AGF)，该S-AGF相当于该可信非3GPP接入网络中的可信非3GPP接入网关功能(Trusted Non-3GPP Gateway Function，TNGF)。如图1B所示，卫星可以作为TNAP与S-AGF之间的Ta接口通信，该Ta接口可以是AAA(认证-授权-计费，Authentication-Authorization-Accounting)接口。S-AGF可以通过N2接口与AMF通信，该N2接口可以是被加强过的N2接口，以便S-AGF与AMF能够可靠通信。As a specific implementation form of trusted non-3GPP access network (TNAN), satellite (Satellite) can also be called trusted non-3GPP access point (TNAP). Provide wireless access services to terminals. The TNAN also includes a Satellite Access Gateway Function (S-AGF), which is equivalent to the Trusted Non-3GPP Access Gateway Function (Trusted) in the Trusted Non-3GPP access network. Non-3GPP Gateway Function, TNGF). As shown in Figure 1B, the satellite can communicate as the Ta interface between TNAP and S-AGF, and the Ta interface can be an AAA (Authentication-Authorization-Accounting) interface. The S-AGF can communicate with the AMF through the N2 interface, and the N2 interface can be an enhanced N2 interface so that the S-AGF and the AMF can communicate reliably.

终端，也可称为接入终端、用户设备(user equipment，UE)，用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置等。该终端至少具备卫星接入能力以及NAS(Non-Access Stratum，非接入层)能力。图1B以UE为例进行说明。终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、物联网终端设备，比如火灾检测传感器、智能水表/电表、工厂监控设备等等。该终端可以通过连接至可信非3GPP接入网络(TNAN)，并通过该TNAN使用基于EAP(Extensible Authentication Protocol，可扩展的身份验证协议)的程序注册到5G核心网。如图1B所示，该终端在注册入5G核心网后，可以通过NWt连接与S-AGF通信，以通过该S-AGF以及AMF向SMF发起一个或多个PDU(Protocol Data Units，协议数据单元)会话和/或传输非无缝卸载流量。另外，该终端与卫星之间的链接可以是任何支持EAP封装的数据链接，例如PPP、PANA、以太网、IEEE 802.3、IEEE 802.11等等。Terminal, also known as access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, user agent or User devices, etc. The terminal has at least satellite access capabilities and NAS (Non-Access Stratum, non-access layer) capabilities. Figure 1B takes UE as an example for illustration. The terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a mobile phone with wireless communication capabilities Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, IoT end devices such as fire detection sensors, smart water/electricity meters, factory monitoring equipment, etc. The terminal can be connected to a trusted non-3GPP access network (TNAN) and registered to the 5G core network through the TNAN using a program based on EAP (Extensible Authentication Protocol, Extensible Authentication Protocol). As shown in Figure 1B, after the terminal is registered in the 5G core network, it can communicate with the S-AGF through the NWt connection to initiate one or more PDUs (Protocol Data Units, protocol data units) to the SMF through the S-AGF and AMF. ) sessions and/or transport non-seamless offload traffic. In addition, the link between the terminal and the satellite can be any data link that supports EAP encapsulation, such as PPP, PANA, Ethernet, IEEE 802.3, IEEE 802.11, etc.

可以理解的是，上述功能既可以是硬件设备中的网络元件，也可以是在专用硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。It can be understood that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform).

图2是根据一示例性实施例示出的一种通信方法，应用于卫星，卫星作为接入点，用于终端通过卫星以非3GPP接入方式接入核心网，方法包括：Figure 2 shows a communication method according to an exemplary embodiment. It is applied to satellites. Satellites serve as access points for terminals to access the core network through satellites in a non-3GPP access mode. The method includes:

S201、卫星通过与终端的层二连接(L2 connection，Layer 2 connection)，接收终端发送的EAP数据包，层二连接为终端在确定通过卫星以非3GPP接入方式接入核心网是可信连接时建立的。S201. The satellite receives the EAP data packet sent by the terminal through the Layer 2 connection (L2 connection, Layer 2 connection) with the terminal. The Layer 2 connection is the trusted connection for the terminal to determine that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection. established at the time.

S202、卫星将EAP数据包以及卫星的标识信息封装为第一消息，EAP数据包包括网络接入标识符。S202. The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message. The EAP data packet includes a network access identifier.

S203、卫星将第一消息发送至接入网中的卫星接入网关功能网元，卫星接入网关功能网元提供可信非3GPP网关功能，第一消息用于卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S203. The satellite sends the first message to the satellite access gateway functional network element in the access network. The satellite access gateway functional network element provides a trusted non-3GPP gateway function. The first message is used by the satellite access gateway functional network element according to The first message generates a registration message, and the registration message includes identification information.

具体地，终端可以是通过可信的非3GPP接入网选择程序，选择一个公共陆地移动网络(PLMN，Public Land Mobile Network)，并选择一个用于接入该移动网络的非3GPP接入网络，该接入网的接入点由该可信非3GPP卫星提供。Specifically, the terminal can select a public land mobile network (PLMN, Public Land Mobile Network) through a trusted non-3GPP access network selection procedure, and select a non-3GPP access network for accessing the mobile network, The access point of the access network is provided by the trusted non-3GPP satellite.

进一步，终端在检测到该接入点后，与该接入点(即卫星)建立一个L2连接(即层二连接)。卫星则在L2连接建立后向终端发送EAP请求，以使得终端启动EAP程序，以将EAP消息封装至EAP数据包中，该EAP数据包可以是IEEE 802.3/802.1x数据包、IEEE 802.11/802.1x数据包或者PPP数据包等等。该EAP数据包中可以包括NAI(网络接入标识符，Nature of Address Indicator)，该NAI可以用于表明该终端请求连接到一个特定的PLMN，示例地，NAI可以是如下的一条消息：NAI＝＝"<any_username>@nai.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org"。Further, after detecting the access point, the terminal establishes an L2 connection (ie, layer 2 connection) with the access point (ie, satellite). After the L2 connection is established, the satellite sends an EAP request to the terminal, so that the terminal starts the EAP program to encapsulate the EAP message into an EAP data packet. The EAP data packet can be an IEEE 802.3/802.1x data packet, IEEE 802.11/802.1x Data packets or PPP packets, etc. The EAP packet may include NAI (Network Access Identifier, Nature of Address Indicator). The NAI may be used to indicate that the terminal requests to connect to a specific PLMN. For example, the NAI may be the following message: NAI＝ ="<any_username>@nai.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org".

在一示例中，卫星接入网关功能网元在生成注册消息后还可以将该注册消息发送至核心网中的目标网元。进而使得终端以非3GPP接入方式接入核心网。In an example, after generating the registration message, the satellite access gateway functional network element may also send the registration message to the target network element in the core network. This allows the terminal to access the core network in a non-3GPP access mode.

卫星接入网关功能网元在选取目标网元(例如选取AMF网元)后向该网元发送的注册请求中，可以包括一个终端位置信息(ULI)，该信息包含一个"空"IP地址(例如0.0.0.0)，因为终端还没有被分配一个IP地址，此外，还可以包括上述的标识信息。在终端被分配到一个IP地址后，卫星接入网关功能网元会在随后的N2消息中包括这个地址和/或标识消息。After the satellite access gateway functional network element selects the target network element (for example, the AMF network element is selected), the registration request sent to the network element can include a terminal location information (ULI), which contains an "empty" IP address ( For example, 0.0.0.0), because the terminal has not been assigned an IP address, in addition, the above identification information can also be included. After the terminal is assigned an IP address, the satellite access gateway function network element will include the address and/or identification message in the subsequent N2 message.

可选地，将第一消息发送至可信非3GPP接入网的卫星接入网关功能网元包括：通过卫星与卫星接入网关功能网元的AAA接口，将第一消息发送至卫星接入网关功能网元；其中，第一消息为AAA消息。Optionally, sending the first message to the satellite access gateway functional network element of the trusted non-3GPP access network includes: sending the first message to the satellite access network through the AAA interface between the satellite and the satellite access gateway functional network element. Gateway function network element; wherein the first message is an AAA message.

其中，该第一消息中的标识信息可以用于认证、授权与计费。也就是说，卫星与卫星接入网关之间可以是通过AAA接口进行信息交互的，该AAA接口为支持EAP封装的数据连接(L2连接，即层二连接)。The identification information in the first message can be used for authentication, authorization and accounting. In other words, information can be exchanged between the satellite and the satellite access gateway through the AAA interface, which is a data connection that supports EAP encapsulation (L2 connection, that is, a layer two connection).

具体的，该卫星接入网关功能网元可以作为AAA代理，上述NAI可以触发卫星向作为AAA代理的卫星接入网关功能网元发送AAA消息。Specifically, the satellite access gateway functional network element can serve as an AAA agent, and the above NAI can trigger the satellite to send an AAA message to the satellite access gateway functional network element serving as the AAA agent.

在一示例中，标识信息包括航天器国际电联身份编号(S-ITU ID)、国际空间研究委员会编号(COSPAR ID，Committee on Space Research Identity)、国际卫星标识符(International Designator，ID)，以及国家航天科学数据中心标识(NSSDC ID，National Space Science Data Center ID)中的一者或多者。其中，国际卫星标识符可以与国际空间研究委员会编号等同，均为COSPAR ID，仅是称呼不同。In one example, the identification information includes the spacecraft ITU ID (S-ITU ID), the Committee on Space Research Identity (COSPAR ID), the International Satellite Identifier (International Designator, ID), and One or more of the National Space Science Data Center IDs (NSSDC ID, National Space Science Data Center ID). Among them, the international satellite identifier can be the same as the International Committee on Space Research number, both are COSPAR IDs, only the names are different.

在一示例中，目标网元为AMF网元。In an example, the target network element is an AMF network element.

其中，核心网中的AMF网元可以有多个，卫星接入网关功能网元可以在向AMF网元发送注册请求之前，从该多个AMF网元中选取一个AMF网元。There may be multiple AMF network elements in the core network, and the satellite access gateway function network element may select one AMF network element from the multiple AMF network elements before sending a registration request to the AMF network element.

在另一示例中，该AMF网元用于将标识信息发送给核心网中的UDM网元。In another example, the AMF network element is used to send identification information to the UDM network element in the core network.

具体地，核心网中还可与包括多个UDM网元，AMF网元可以从多个UDM中选取一个UDM网元进行注册，该标识消息可以是AMF网元向UDM注册时提供接入类型(接入类型为非3GPP接入)时同时发送的。Specifically, the core network may also include multiple UDM network elements, and the AMF network element may select one UDM network element from multiple UDMs for registration. The identification message may be the access type ( Sent simultaneously when the access type is non-3GPP access).

在又一实例中，该AMF网元还用于将标识信息发送给核心网中的SMF网元和/或PCF网元。将该标识信息发送至SMF网元/PCF网元，该标识信息可以用政策管理(例如QoS、移动性管理)以及收费控制。In another example, the AMF network element is also used to send identification information to the SMF network element and/or the PCF network element in the core network. The identification information is sent to the SMF network element/PCF network element, and the identification information can be used for policy management (such as QoS, mobility management) and charging control.

在一示例中，卫星接入网关功能网元与AMF网元可以通过N2接口通信，卫星接入网关功能网元用于根据第一消息，通过N2接口向AMF网元发送注册消息。In an example, the satellite access gateway functional network element and the AMF network element can communicate through the N2 interface, and the satellite access gateway functional network element is configured to send a registration message to the AMF network element through the N2 interface according to the first message.

其中，该N2接口可以是增强后的N2接口，以确保卫星接入网关功能网元与能够可靠通信。可以理解的是，在这样的情况下，该第一消息可以是N2消息。另外，卫星接入网关功能网元还可以通过该N2接口接收AMF发送的身份响应(identity response)、SMC(Satellite Mobile Channel，卫星移动信道)请求消息、N2初始上下文设置请求消息(N2Initial Ctx Setup Request)等等，并发送身份请求(identity request)、N2初始上下文设置响应消息(N2 Initial Ctx Setup Response)等等。The N2 interface may be an enhanced N2 interface to ensure reliable communication between the satellite access gateway functional network element and the network element. It can be understood that in such a case, the first message may be an N2 message. In addition, the satellite access gateway functional network element can also receive the identity response (identity response) sent by the AMF, the SMC (Satellite Mobile Channel, satellite mobile channel) request message, and the N2 initial context setting request message (N2Initial Ctx Setup Request) through the N2 interface. ), etc., and send identity request, N2 Initial Context Setup Response message (N2 Initial Ctx Setup Response), etc.

值得说明的是，以目标网元为AMF为例，卫星将第一消息发送至卫星接入网关功能网元之后，卫星接入网关功能网元可以通过L2接口向终端发送EAP-Req/5G-Start消息，该EAP-Req/5G-Start消息用于请求终端发送接入点参数(AN parameters，access point parameters)，并且，终端仅在可信非3GPP接入的情况下再将NSSAI(Network Slice Selection Assistance Information，网络切片选择协助信息)纳入该接入点参数。卫星接入网关功能网元在接收到该接入点参数后，再进行AMF网元的选择，并向AMF网元发送注册请求，该注册请求可以是根据接入点参数以及第一消息中的标识信息生成的。It is worth noting that, taking the target network element as the AMF as an example, after the satellite sends the first message to the satellite access gateway functional network element, the satellite access gateway functional network element can send EAP-Req/5G- to the terminal through the L2 interface. Start message, the EAP-Req/5G-Start message is used to request the terminal to send access point parameters (AN parameters, access point parameters), and the terminal will only send NSSAI (Network Slice) in the case of trusted non-3GPP access. Selection Assistance Information, network slice selection assistance information) is included in the access point parameters. After receiving the access point parameters, the satellite access gateway function network element selects the AMF network element and sends a registration request to the AMF network element. The registration request can be based on the access point parameters and the information in the first message. Identification information is generated.

AMF在接收到该注册请求后，可以与AUSF、卫星接入网关功能网元、以及通过卫星接入网关功能网元与终端进行交互，进而使得该终端接入该AMF所在的核心网。具体的，可以包括在终端与AMF中创建一个TNGF(相当于卫星接入网关功能网元)密钥，并通过卫星接入网关功能网元将该密钥根据该TNGF密钥生成TNAP(相当于卫星)密钥，并将该密钥提供给卫星，该TNAP密钥对生成方式可以是基于非3GPP接入技术协议，例如，在IEEE 802.11标准的情况下，该TNAP密钥是一个成对主密钥。该TNAP密钥可以用于在终端与卫星之间确保层二连接的安全，在IEEE 802.11标准对情况下，执行4路握手，在卫星与终端之间建立一个安全环境，用于保护空中的单播和多播流量。终端还可以接受卫星接入网关功能网元发送的IP配置，例如是否使用DHCP(Dynamic Host Configuration Protocol，动态主机配置协议)，以使得终端连接到该接入网并获取IP配置并与卫星接入网关功能网元建立安全的NWt连接。进一步，NAS注册接受消息由AMF发送至卫星接入网关功能网元并通过建立的NWt连接转发给UE，以使得终端可以使用TNAN传输非无缝卸载流量和/或建立一个或多个PDU会话，实现核心网的接入。After receiving the registration request, the AMF can interact with the AUSF, the satellite access gateway functional network element, and the terminal through the satellite access gateway functional network element, thereby allowing the terminal to access the core network where the AMF is located. Specifically, it may include creating a TNGF (equivalent to a satellite access gateway functional network element) key in the terminal and the AMF, and using the satellite access gateway functional network element to generate a TNAP (equivalent to a TNAP) based on the TNGF key through the satellite access gateway functional network element. satellite) key and provide the key to the satellite. The TNAP key pair generation method may be based on a non-3GPP access technology protocol. For example, in the case of the IEEE 802.11 standard, the TNAP key is a pairwise master key. The TNAP key can be used to secure the Layer 2 connection between the terminal and the satellite. In the case of the IEEE 802.11 standard pair, a 4-way handshake is performed to establish a secure environment between the satellite and the terminal to protect the single unit in the air. broadcast and multicast traffic. The terminal can also accept the IP configuration sent by the satellite access gateway functional network element, such as whether to use DHCP (Dynamic Host Configuration Protocol), so that the terminal can connect to the access network and obtain the IP configuration and connect with the satellite The gateway function network element establishes a secure NWt connection. Further, the NAS registration acceptance message is sent by the AMF to the satellite access gateway function network element and forwarded to the UE through the established NWt connection, so that the terminal can use TNAN to transmit non-seamless offload traffic and/or establish one or more PDU sessions, Achieve core network access.

在本公开实施例中，通过将卫星作为接入网的接入点，通过层二连接接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求，进而使得终端通过卫星以可信的非3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务并获知卫星的标识消息。In the embodiment of the present disclosure, the satellite is used as the access point of the access network, the EAP data packet sent by the terminal is received through the layer 2 connection, and the data packet and the identification information used to identify the satellite are encapsulated, and the satellite is accessed through the satellite. The gateway function network element generates a registration request based on the first message, thereby allowing the terminal to access the core network through the satellite in a trusted non-3GPP access mode, so that the mobile network can provide services to terminals under satellites that do not support NR and learn about the satellite identification message.

图3是根据一示例性实施例示出的一种通信方法的流程图，应用于卫星接入网关功能网元，如图3所示，方法包括：Figure 3 is a flow chart of a communication method according to an exemplary embodiment, applied to a satellite access gateway functional network element. As shown in Figure 3, the method includes:

S301、卫星接入网关功能网元接收卫星发送的第一消息，第一消息为卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S301. The satellite access gateway functional network element receives the first message sent by the satellite. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP Gateway function, the terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S302、卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S302. The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

在一示例中，标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。In one example, the identification information includes one or more of a spacecraft ITU identification number, an International Space Research Council number, an international satellite identifier, and a National Space Science Data Center identification.

在本公开实施例中，通过将卫星作为接入网的接入点接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求，进而使得终端通过卫星以可信的非3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务并获知卫星的标识消息。In the embodiment of the present disclosure, the satellite is used as the access point of the access network to receive the EAP data packet sent by the terminal and encapsulate the data packet and the identification information used to identify the satellite, and then the satellite access gateway function network element is based on The first message generates a registration request, thereby allowing the terminal to access the core network through the satellite in a trusted non-3GPP access mode, so that the mobile network can provide services to terminals under satellites that do not support NR and learn the identification message of the satellite.

图4是根据一示例性实施例示出的一种通信方法的流程图，应用于卫星接入网关功能网元，如图4所示，方法包括：Figure 4 is a flow chart of a communication method according to an exemplary embodiment, applied to a satellite access gateway functional network element. As shown in Figure 4, the method includes:

S401、卫星接入网关功能网元接收卫星发送的第一消息，第一消息为卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S401. The satellite access gateway functional network element receives the first message sent by the satellite. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP Gateway function, the terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S402、卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S402. The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

S403、卫星接入网关功能网元将所述注册消息发送至核心网中的目标网元。S403. The satellite access gateway function network element sends the registration message to the target network element in the core network.

在一示例中，卫星接入网关功能网元与AMF网元可以通过N2接口通信，卫星接入网关功能网元用于通过N2接口向AMF网元发送注册消息。In an example, the satellite access gateway functional network element and the AMF network element can communicate through the N2 interface, and the satellite access gateway functional network element is used to send a registration message to the AMF network element through the N2 interface.

其中，该N2接口可以是增强后的N2接口，以确保卫星接入网关功能网元与能够可靠通信。可以理解的是，在这样的情况下，该第一消息可以是N2消息。另外，卫星接入网关功能网元还可以通过该N2接口接收AMF发送的身份响应(identity response)、SMC(Satellite Mobile Channel，卫星移动信道)请求消息、N2初始上下文设置请求消息(N2 Initial Ctx Setup Request)等等，并发送身份请求(identity request)、N2初始上下文设置响应消息(N2 Initial Ctx Setup Response)等等。The N2 interface may be an enhanced N2 interface to ensure reliable communication between the satellite access gateway functional network element and the network element. It can be understood that in such a case, the first message may be an N2 message. In addition, the satellite access gateway functional network element can also receive the identity response (identity response) sent by the AMF, the SMC (Satellite Mobile Channel, satellite mobile channel) request message, and the N2 initial context setting request message (N2 Initial Ctx Setup) through the N2 interface. Request), etc., and send identity request, N2 Initial Context Setup Response message (N2 Initial Ctx Setup Response), etc.

在本公开实施例中，通过将卫星作为接入网的接入点接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求发送至核心网中的目标网元，进而使得终端通过卫星以可信的非3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务并获知卫星的标识消息。In the embodiment of the present disclosure, the satellite is used as the access point of the access network to receive the EAP data packet sent by the terminal and encapsulate the data packet and the identification information used to identify the satellite, and then the satellite access gateway function network element is based on The first message generates a registration request and sends it to the target network element in the core network, thereby allowing the terminal to access the core network through the satellite in a trusted non-3GPP access mode, so that the mobile network can provide terminals under satellites that do not support NR. service and obtain the identification message of the satellite.

图5是根据一示例性实施例示出的一种通信方法的流程图，应用于卫星接入网关功能网元，如图5所示，方法包括：Figure 5 is a flow chart of a communication method according to an exemplary embodiment, applied to a satellite access gateway functional network element. As shown in Figure 5, the method includes:

S501、卫星接入网关功能网元接收卫星发送的第一消息，第一消息为卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S501. The satellite access gateway functional network element receives the first message sent by the satellite. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP Gateway function, the terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S502、卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S502. The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

S503、卫星接入网关功能网元通过N2接口向AMF网元发送注册消息。S503. The satellite access gateway function network element sends a registration message to the AMF network element through the N2 interface.

S504、卫星接入网关功能网元在与终端的NWt连接成功建立后，通过N2接口向AMF网元发送初始上下文设置响应消息。S504. After the NWt connection with the terminal is successfully established, the satellite access gateway function network element sends an initial context setting response message to the AMF network element through the N2 interface.

其中，卫星接入网关功能网元可以是响应于接收到AMF发送的初始上下文设置请求消息，并成功建立NWt连接后发送的。The satellite access gateway function network element may be sent in response to receiving the initial context setting request message sent by the AMF and successfully establishing the NWt connection.

S505、卫星接入网关功能网元通过N2接口接收AMF网元发送的注册接受消息，并通过NWt连接将注册接受消息发送至终端，注册接受消息用于终端通过可信非3GPP接入方式接入核心网。S505. The satellite access gateway function network element receives the registration acceptance message sent by the AMF network element through the N2 interface, and sends the registration acceptance message to the terminal through the NWt connection. The registration acceptance message is used for the terminal to access through the trusted non-3GPP access method. Core Network.

其中，该注册接受消息可以是NAS注册接受消息(NAS Registration Accept，Non-Access Stratum Registration Accept)。该注册接受消息可以是由AMF响应于初始上下文设置响应消息发送的，并通过该卫星接入网关功能网元通过NWt连接发送至终端。终端响应于接收到该注册接受消息，则可以利用基于卫星的可行非3GPP接入网接入核心网，并传输非无缝卸载流量和/或建立一个或多个PDU会话。The registration acceptance message may be a NAS registration acceptance message (NAS Registration Accept, Non-Access Stratum Registration Accept). The registration acceptance message may be sent by the AMF in response to the initial context setting response message, and is sent to the terminal through the NWt connection through the satellite access gateway function network element. In response to receiving the registration acceptance message, the terminal may utilize a feasible satellite-based non-3GPP access network to access the core network, and transmit non-seamless offload traffic and/or establish one or more PDU sessions.

在又一示例中，该AMF网元还用于将标识信息发送给核心网中的SMF网元和/或PCF网元。将该标识信息发送至SMF网元/PCF网元，该标识信息可以用政策管理(例如QoS、移动性管理)以及收费控制。In another example, the AMF network element is also used to send identification information to the SMF network element and/or the PCF network element in the core network. The identification information is sent to the SMF network element/PCF network element, and the identification information can be used for policy management (such as QoS, mobility management) and charging control.

在另一示例中，卫星在终端基于注册接受消息通过可信非3GPP方式接入核心网后，将注册消息中的标识信息，发送至UDM网元、SMF网元或者PCF网元中的一者或多者。In another example, after the terminal accesses the core network through a trusted non-3GPP method based on the registration acceptance message, the satellite sends the identification information in the registration message to one of the UDM network element, SMF network element, or PCF network element. Or more.

采用上述方案，通过将卫星作为接入网的接入点，通过层二连接接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求发送至核心网中的AMF网元，进而使得终端能够与卫星接入网关功能网元建立安全的NWt连接，并且通过卫星接入网关功能网元基于NWt连接将AMF网元发送的注册接受消息发送至终端，使得终端能够根据注册接受消息使用基于卫星的可信3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务。Using the above solution, the satellite is used as the access point of the access network, the EAP data packet sent by the terminal is received through the layer 2 connection, and the data packet and the identification information used to identify the satellite are encapsulated, and then the satellite access gateway function network is The terminal generates a registration request based on the first message and sends it to the AMF network element in the core network, thereby enabling the terminal to establish a secure NWt connection with the satellite access gateway functional network element, and through the satellite access gateway functional network element based on the NWt connection. The registration acceptance message sent by the AMF network element is sent to the terminal, so that the terminal can use the satellite-based trusted 3GPP access method to access the core network according to the registration acceptance message, so that the mobile network can provide services to terminals under satellites that do not support NR.

图6是根据一示例性实施例示出的一种通信方法的流程图，应用于核心网的目标网元，如图6所示，方法包括：Figure 6 is a flow chart of a communication method according to an exemplary embodiment, applied to a target network element of the core network. As shown in Figure 6, the method includes:

S601、目标网元接收卫星接入网关功能网元发送的注册消息，注册消息是根据第一消息生成的，第一消息是卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S601. The target network element receives the registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite The access gateway function network element provides a trusted non-3GPP gateway function. The terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

其中，目标网元在接收到卫星接入网关功能网元发送的注册消息之后使得终端通过可信非3GPP接入方式接入核心网的具体实现方式在前文中已有较为详细的描述，此处不在赘述。Among them, the specific implementation method for the target network element to enable the terminal to access the core network through a trusted non-3GPP access method after receiving the registration message sent by the satellite access gateway function network element has been described in detail in the previous article. Here No need to go into details.

其中，核心网中的AMF网元可以有多个，卫星接入网关功能网元可以在向AMF网元发送注册请求之前，从该多个AMF网元中选取一个AMF网元作为目标网元。There can be multiple AMF network elements in the core network, and the satellite access gateway function network element can select one AMF network element from the multiple AMF network elements as the target network element before sending a registration request to the AMF network element.

在一示例中，卫星接入网关功能网元与AMF网元可以通过N2接口通信，卫星接入网关功能网元用于根据第一消息，通过N2接口向目标网元发送注册消息。In an example, the satellite access gateway functional network element and the AMF network element can communicate through the N2 interface, and the satellite access gateway functional network element is configured to send a registration message to the target network element through the N2 interface according to the first message.

也就是说，步骤S601中的目标网元接收卫星接入网关功能网元发送的注册消息包括：That is to say, the target network element in step S601 receives the registration message sent by the satellite access gateway function network element including:

目标网元(即AMF网元)通过N2接口接收卫星接入网关功能网元发送注册消息。The target network element (that is, the AMF network element) receives the registration message sent by the satellite access gateway function network element through the N2 interface.

图7是根据一示例性实施例示出的一种通信方法的流程图，应用于核心网的目标网元，如图7所示，方法包括：Figure 7 is a flow chart of a communication method according to an exemplary embodiment, applied to a target network element of the core network. As shown in Figure 7, the method includes:

S701、目标网元接收卫星接入网关功能网元发送的注册消息，注册消息是根据第一消息生成的，第一消息是卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S701. The target network element receives the registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite The access gateway function network element provides a trusted non-3GPP gateway function. The terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S702、目标网元通过N2接口接收卫星接入网关功能网元发送的初始上下文设置响应消息，初始上下文设置响应消息是在卫星接入网关功能网元与终端的NWt连接成功建立后发送的。S702. The target network element receives the initial context setting response message sent by the satellite access gateway functional network element through the N2 interface. The initial context setting response message is sent after the NWt connection between the satellite access gateway functional network element and the terminal is successfully established.

S703、目标网元通过N2接口向卫星接入网关功能网元发送注册接受消息，注册接收消息用于卫星接入网关功能网元通过NWt连接将注册接受消息发送至终端。S703. The target network element sends a registration acceptance message to the satellite access gateway functional network element through the N2 interface. The registration acceptance message is used by the satellite access gateway functional network element to send the registration acceptance message to the terminal through the NWt connection.

采用上述方案，通过将卫星作为接入网的接入点，通过层二连接接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装后，通过卫星接入网关功能网元基于该第一消息生成注册请求发送至核心网中的目标网元，进而使得终端能够与卫星接入网关功能网元建立安全的NWt连接，并且通过卫星接入网关功能网元基于NWt连接将目标网元发送的注册接受消息发送至终端，使得终端能够根据注册接受消息使用基于卫星的可信3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务。Using the above solution, the satellite is used as the access point of the access network, the EAP data packet sent by the terminal is received through the layer 2 connection, and the data packet and the identification information used to identify the satellite are encapsulated, and then the satellite access gateway function network is The terminal generates a registration request based on the first message and sends it to the target network element in the core network, thereby enabling the terminal to establish a secure NWt connection with the satellite access gateway functional network element, and through the satellite access gateway functional network element based on the NWt connection. The registration acceptance message sent by the target network element is sent to the terminal, so that the terminal can use the satellite-based trusted 3GPP access method to access the core network according to the registration acceptance message, so that the mobile network can provide services to terminals under satellites that do not support NR.

图8是根据一示例性实施例示出的一种通信方法的流程图，应用于核心网的目标网元，目标网元为AMF网元，如图8所示，方法包括：Figure 8 is a flow chart of a communication method according to an exemplary embodiment. It is applied to a target network element of the core network. The target network element is an AMF network element. As shown in Figure 8, the method includes:

S801、目标网元接收卫星接入网关功能网元发送的注册消息，注册消息是根据第一消息生成的，第一消息是卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S801. The target network element receives the registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite The access gateway function network element provides a trusted non-3GPP gateway function. The terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S802、目标网元在终端基于注册接受消息通过可信非3GPP方式接入核心网后，将注册消息中的标识信息，发送至UDM网元、SMF网元或者PCF网元中的一者或多者。S802. After the terminal accesses the core network through a trusted non-3GPP method based on the registration acceptance message, the target network element sends the identification information in the registration message to one or more of the UDM network element, SMF network element or PCF network element. By.

在一示例中，将注册消息中的标识信息，发送至UDM网元包括：In an example, sending the identification information in the registration message to the UDM network element includes:

在AMF网元向UDM网元注册时，将目标接入类型与标识信息通过AMF注册请求发送至UDM网元。When the AMF network element registers with the UDM network element, the target access type and identification information are sent to the UDM network element through the AMF registration request.

采用上述方案，在终端通过可信非3GPP方式接入核心网，通过AMF网元将卫星的标识信息发送至UDM网元、SMF网元或者PCF网元中的一者或多者，能够使得UDM网元、SMF网元或者PCF网元能够基于卫星的标识信息进行数据管理、政策管理(例如QoS、移动性管理)以及收费控制，使得终端能够根据注册接受消息使用基于卫星的可信3GPP接入方式接入核心网、令移动网络可以向不支持NR的卫星下的终端提供服务并能够基于卫星标识进行有效地管理与计费。Using the above solution, when the terminal accesses the core network through a trusted non-3GPP method, the identification information of the satellite is sent to one or more of the UDM network element, SMF network element or PCF network element through the AMF network element, which can enable UDM Network elements, SMF network elements or PCF network elements can perform data management, policy management (such as QoS, mobility management) and charging control based on satellite identification information, so that terminals can use satellite-based trusted 3GPP access based on registration acceptance messages. This method allows the mobile network to access the core network, provide services to terminals under satellites that do not support NR, and effectively manage and charge based on satellite identities.

图9是根据一示例性实施例示出的一种通信方法的流程图，应用于核心网的目标网元，目标网元为AMF网元，如图9所示，方法包括：Figure 9 is a flow chart of a communication method according to an exemplary embodiment. It is applied to a target network element of the core network. The target network element is an AMF network element. As shown in Figure 9, the method includes:

S901、目标网元接收卫星接入网关功能网元发送的注册消息，注册消息是根据第一消息生成的，第一消息是卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。S901. The target network element receives the registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. The satellite The access gateway function network element provides a trusted non-3GPP gateway function. The terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection.

S902、目标网元接通过N2接口接收卫星接入网关功能网元发送的初始上下文设置响应消息，初始上下文设置响应消息是在卫星接入网关功能网元与终端的NWt连接成功建立后发送的。S902. The target network element receives the initial context setting response message sent by the satellite access gateway functional network element through the N2 interface. The initial context setting response message is sent after the NWt connection between the satellite access gateway functional network element and the terminal is successfully established.

S903、目标网元接通过N2接口向卫星接入网关功能网元发送注册接受消息，注册接收消息用于卫星接入网关功能网元通过NWt连接将注册接受消息发送至终端。S903. The target network element sends a registration acceptance message to the satellite access gateway functional network element through the N2 interface. The registration acceptance message is used by the satellite access gateway functional network element to send the registration acceptance message to the terminal through the NWt connection.

图10是根据一示例性实施例示出的一种通信方法的流程图，应用于终端，如图10所示，该方法包括：Figure 10 is a flow chart of a communication method according to an exemplary embodiment, applied to a terminal. As shown in Figure 10, the method includes:

S1001、终端在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与卫星的层二连接。S1001. When the terminal determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection, it establishes a Layer 2 connection with the satellite.

S1002、终端通过层二连接向卫星发送EAP数据包，EAP数据包用于卫星将EAP数据包以及卫星的标识信息封装为第一消息。S1002. The terminal sends an EAP data packet to the satellite through a Layer 2 connection. The EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message.

在另一示例中，通过层二连接向卫星发送EAP数据包包括：响应于接收到卫星通过层二连接发送的EAP请求，通过层二连接向卫星发送EAP数据包。In another example, sending the EAP data packet to the satellite over the layer two connection includes sending the EAP data packet to the satellite over the layer two connection in response to receiving an EAP request sent by the satellite over the layer two connection.

其中，EAP请求可以是卫星响应于卫星与终端之间的层二连接建立成功后发送至该终端的。The EAP request may be sent by the satellite to the terminal in response to the successful establishment of the Layer 2 connection between the satellite and the terminal.

在一示例中，卫星将EAP数据包以及卫星的标识信息封装为第一消息还将该第一消息发送至卫星接入网关功能网元，该卫星接入网关功能网元可以根据该第一消息生成注册消息发送至目标网元，进而使得终端以非3GPP接入方式接入核心网。In an example, the satellite encapsulates the EAP data packet and the identification information of the satellite into a first message and sends the first message to the satellite access gateway functional network element. The satellite access gateway functional network element can respond to the first message Generate a registration message and send it to the target network element, thereby allowing the terminal to access the core network in a non-3GPP access mode.

在本公开实施例中，通过将卫星作为接入网的接入点接收终端发送的EAP数据包并将该数据包以及用于标识卫星的标识信息封装，进而使得终端通过卫星以可信的非3GPP接入方式接入核心网，令移动网络可以向不支持NR的卫星下的终端提供服务并获知卫星的标识消息。In the embodiment of the present disclosure, the satellite is used as the access point of the access network to receive the EAP data packet sent by the terminal and encapsulate the data packet and the identification information used to identify the satellite, thereby enabling the terminal to use the satellite through the satellite to authenticate the EAP data packet. The 3GPP access method is connected to the core network, so that the mobile network can provide services to terminals under satellites that do not support NR and obtain the identification information of the satellite.

图11是根据一示例性实施例示出的一种通信***的示意图，如图11所示，通信***1100包括卫星1101、卫星接入网关功能网元1102以及目标网元1103，其中，该卫星1101作为接入点，以供终端通过卫星以非3GPP接入方式接入核心网。Figure 11 is a schematic diagram of a communication system according to an exemplary embodiment. As shown in Figure 11, the communication system 1100 includes a satellite 1101, a satellite access gateway functional network element 1102 and a target network element 1103, where the satellite 1101 As an access point, terminals can access the core network via satellite in a non-3GPP access mode.

基于图11所示的通信***的示意图，本公开还提供如图12所示根据一示例性实施例示出的一种通信方法的流程图，应用于如图11所示的通信***，如图12所示，该方法包括：Based on the schematic diagram of the communication system shown in Figure 11, the present disclosure also provides a flow chart of a communication method shown in Figure 12 according to an exemplary embodiment, which is applied to the communication system shown in Figure 11, as shown in Figure 12 As shown, the method includes:

S1201、卫星通过与终端的层二连接，接收终端发送的EAP数据包，层二连接为终端在确定通过卫星以非3GPP接入方式接入核心网是可信连接时建立的。S1201. The satellite receives the EAP data packet sent by the terminal through the layer 2 connection with the terminal. The layer 2 connection is established when the terminal determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection.

S1202、卫星将EAP数据包以及卫星的标识信息封装为第一消息，EAP数据包包括网络接入标识符。S1202. The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message. The EAP data packet includes the network access identifier.

S1203、卫星将第一消息发送至接入网中的卫星接入网关功能网元，卫星接入网关功能网元提供可信非3GPP网关功能。S1203. The satellite sends the first message to the satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function.

S1204、卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S1204. The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

S1205、卫星接入网关功能网元将注册消息发送至目标网元。S1205. The satellite access gateway function network element sends the registration message to the target network element.

在一示例中，卫星接入网关功能网元与AMF网元可以通过N2接口通信，步骤S1205中卫星接入网关功能网元将注册消息发送至目标网元可以包括：卫星接入网关功能网元通过N2接口向AMF网元发送注册消息。In an example, the satellite access gateway functional network element and the AMF network element can communicate through the N2 interface. In step S1205, the satellite access gateway functional network element sends the registration message to the target network element, which may include: the satellite access gateway functional network element. Send a registration message to the AMF network element through the N2 interface.

图13是根据一示例性实施例示出的一种通信方法的流程图，应用于如图11所示的通信***，其中，目标网元为AMF网元，如图13所示，该方法包括：Figure 13 is a flow chart of a communication method according to an exemplary embodiment, which is applied to the communication system shown in Figure 11, where the target network element is an AMF network element. As shown in Figure 13, the method includes:

S1301、卫星通过与终端的层二连接，接收终端发送的EAP数据包，层二连接为终端在确定通过卫星以非3GPP接入方式接入核心网是可信连接时建立的。S1301. The satellite receives the EAP data packet sent by the terminal through the layer 2 connection with the terminal. The layer 2 connection is established when the terminal determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection.

S1302、卫星将EAP数据包以及卫星的标识信息封装为第一消息，EAP数据包包括网络接入标识符。S1302. The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message. The EAP data packet includes a network access identifier.

S1303、卫星将第一消息发送至接入网中的卫星接入网关功能网元，卫星接入网关功能网元提供可信非3GPP网关功能。S1303. The satellite sends the first message to the satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function.

S1304、卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。S1304. The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

S1305、卫星接入网关功能网元通过N2接口向AMF网元发送注册消息。S1305. The satellite access gateway function network element sends a registration message to the AMF network element through the N2 interface.

S1306、卫星接入网关功能网元在与终端的NWt连接成功建立后，通过N2接口向AMF网元发送初始上下文设置响应消息。S1306. After the NWt connection with the terminal is successfully established, the satellite access gateway function network element sends an initial context setting response message to the AMF network element through the N2 interface.

S1307、卫星接入网关功能网元通过N2接口接收AMF网元发送的注册接受消息，并通过NWt连接将注册接受消息发送至终端，注册接受消息用于终端通过可信非3GPP接入方式接入核心网。S1307. The satellite access gateway function network element receives the registration acceptance message sent by the AMF network element through the N2 interface, and sends the registration acceptance message to the terminal through the NWt connection. The registration acceptance message is used for the terminal to access through the trusted non-3GPP access method. Core Network.

其中，该注册接受消息可以是NAS注册接受消息(NAS Registration Accept，Non-Access Stratum Registration Accept)。该注册接受消息可以是由AMF响应于初始上下文设置响应消息发送的，并通过该卫星接入网关功能网元通过NWt连接发送至终端。终端响应于接收到该注册接受消息，则可以利用基于卫星的可行非3GPP接入网接入核心网，并传输非无缝卸载流量和/或建立一个或多个PDU会话。The registration acceptance message may be a NAS registration acceptance message (NAS Registration Accept, Non-Access Stratum Registration Accept). The registration acceptance message may be sent by the AMF in response to the initial context setting response message, and is sent to the terminal through the NWt connection through the satellite access gateway function network element. In response to receiving the registration acceptance message, the terminal may utilize a feasible satellite-based non-3GPP access network to access the core network and transmit non-seamless offload traffic and/or establish one or more PDU sessions.

在一示例中，该AMF网元用于将标识信息发送给核心网中的UDM网元。In an example, the AMF network element is used to send identification information to the UDM network element in the core network.

即，AMF网元将注册消息中的标识信息，发送至UDM网元包括：That is, the AMF network element sends the identification information in the registration message to the UDM network element including:

AMF网元在向UDM网元注册时，将目标接入类型与标识信息通过AMF注册请求发送至UDM网元。When the AMF network element registers with the UDM network element, it sends the target access type and identification information to the UDM network element through the AMF registration request.

为了使得本领域技术人员能够更加理解本公开提供的技术方案，图14是根据一示例性实施例示出的一种通信方法的交互图，如图14所示，该方法包括：In order to enable those skilled in the art to better understand the technical solutions provided by the present disclosure, Figure 14 is an interaction diagram illustrating a communication method according to an exemplary embodiment. As shown in Figure 14, the method includes:

S1401、终端检测通过非3GPP接入方式接入一个PLMN的核心网是可信连接，接入网的接入点由卫星提供。S1401. The terminal detects that accessing a PLMN's core network through a non-3GPP access method is a trusted connection, and the access point of the access network is provided by the satellite.

S1402、终端与卫星建立层二连接。S1402. The terminal establishes a Layer 2 connection with the satellite.

S1403、卫星通过层二连接向终端发送EAP身份请求。S1403. The satellite sends an EAP identity request to the terminal through the layer 2 connection.

S1404、终端通过层二连接向卫星发送EAP身份响应，即EAP数据包。S1404. The terminal sends an EAP identity response, that is, an EAP data packet, to the satellite through the layer 2 connection.

其中，EAP数据包可以是通过终端启动EAP程序，以将EAP消息封装得到的。该EAP数据包可以是IEEE 802.3/802.1x数据包、IEEE 802.11/802.1x数据包或者PPP数据包等等。该EAP数据包中可以包括NAI(网络接入标识符，Nature of Address Indicator)，该NAI可以用于表明该终端请求连接到一个特定的PLMN，示例地，NAI可以是如下的一条消息：NAI＝＝"<any_username>@nai.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org"。The EAP data packet can be obtained by starting the EAP program through the terminal to encapsulate the EAP message. The EAP data packet can be an IEEE 802.3/802.1x data packet, an IEEE 802.11/802.1x data packet or a PPP data packet, etc. The EAP packet may include NAI (Network Access Identifier, Nature of Address Indicator). The NAI may be used to indicate that the terminal requests to connect to a specific PLMN. For example, the NAI may be the following message: NAI＝ ="<any_username>@nai.5gc.mnc<MNC>.mcc<MCC>.3gppnetwork.org".

S1405、卫星将EAP数据包以及卫星的标识信息封装为第一消息，并通过AAA接口将第一消息发送至卫星接入网关功能网元。S1405. The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message, and sends the first message to the satellite access gateway functional network element through the AAA interface.

其中，卫星的标识信息包括航天器国际电联身份编号(S-ITU ID)、国际空间研究委员会编号(COSPAR ID，Committee on Space Research Identity)、国际卫星标识符 (International Designator，ID)，以及国家航天科学数据中心标识(NSSDC ID，National Space Science Data Center ID)中的一者或多者。Among them, the identification information of the satellite includes the spacecraft ITU ID (S-ITU ID), the International Space Research Committee number (COSPAR ID, Committee on Space Research Identity), the International Satellite Identifier (International Designator, ID), and the country One or more of the National Space Science Data Center ID (NSSDC ID).

S1406、卫星接入网关功能网元向终端发送EAP-Req/5G-Start消息。S1406. The satellite access gateway functional network element sends the EAP-Req/5G-Start message to the terminal.

S1407、终端向卫星接入网关功能网元发送接入点参数。S1407. The terminal sends access point parameters to the satellite access gateway functional network element.

其中，接入点参数可以包括终端标识、PLMN标识、NSSAI等，该终端标识例如可以是5G-GUTI(5G Globally Unique Temporary Identifier，5G全球唯一临时标识)。The access point parameters may include terminal identification, PLMN identification, NSSAI, etc., and the terminal identification may be, for example, 5G-GUTI (5G Globally Unique Temporary Identifier, 5G Globally Unique Temporary Identifier).

S1408、卫星接入网关功能网元从多个AMF网元中选取一个AMF网元作为目标网元。S1408. The satellite access gateway function network element selects an AMF network element from multiple AMF network elements as the target network element.

S1409、卫星接入网关功能网元通过N2接口向目标网元发送注册请求。S1409. The satellite access gateway function network element sends a registration request to the target network element through the N2 interface.

其中，该注册请求可以是根据第一消息中的标识信息以及接入点参数等信息生成的。The registration request may be generated based on the identification information, access point parameters and other information in the first message.

S1410、目标网元根据注册请求与AUSF网元、卫星接入网关功能网元、卫星以及终端进行交互，建立终端与卫星之间的NWt连接。S1410. The target network element interacts with the AUSF network element, satellite access gateway function network element, satellite and terminal according to the registration request, and establishes an NWt connection between the terminal and the satellite.

其中，具体地交互流程可以参考相关技术TS 23.502。Among them, the specific interaction process can refer to the related technology TS 23.502.

S1411、卫星接入网关功能网元通过N2接口向目标网元发送初始上下文设置响应消息。S1411. The satellite access gateway function network element sends an initial context setting response message to the target network element through the N2 interface.

S1412、目标网元通过N2接口向卫星接入网关功能网元发送NAS注册接受消息。S1412. The target network element sends a NAS registration acceptance message to the satellite access gateway functional network element through the N2 interface.

S1413、卫星接入网关功能网元通过NWt连接将NAS注册接受消息转发至终端，以完成终端通过可信非3GPP方式接入核心网。S1413. The satellite access gateway functional network element forwards the NAS registration acceptance message to the terminal through the NWt connection to complete the terminal's access to the core network through a trusted non-3GPP method.

在一示例中，在终端通过可信非3GPP方式接入核心网后，目标网元还可以将卫星的标识消息发送至UDM网元、SMF网元或者PCF网元中的一者或多者。使得UDM网元、SMF网元或者PCF网元能够基于卫星的标识信息进行数据管理、政策管理(例如QoS、移动性管理)以及收费控制，使得终端能够根据注册接受消息使用基于卫星的可信3GPP接入方式接入核心网、令移动网络可以向不支持NR的卫星下的终端提供服务并能够基于卫星标识进行有效地管理与计费。In one example, after the terminal accesses the core network through a trusted non-3GPP method, the target network element can also send the identification message of the satellite to one or more of the UDM network element, SMF network element, or PCF network element. Enables UDM network elements, SMF network elements or PCF network elements to perform data management, policy management (such as QoS, mobility management) and charging control based on satellite identification information, enabling terminals to use satellite-based trusted 3GPP based on registration acceptance messages The access method connects to the core network so that the mobile network can provide services to terminals under satellites that do not support NR and can effectively manage and bill based on satellite identities.

图15是根据一示例性实施例示出的一种通信装置的框图，应用于卫星，卫星作为接入点，用于终端通过卫星以非3GPP接入方式接入核心网，如图15所示，该通信装置1500包括：Figure 15 is a block diagram of a communication device according to an exemplary embodiment. It is applied to a satellite. The satellite serves as an access point for terminals to access the core network in a non-3GPP access mode through the satellite. As shown in Figure 15, The communication device 1500 includes:

第一接收模块1501，被配置为通过与终端的层二连接，接收终端发送的EAP数据包，层二连接为终端在确定通过卫星以非3GPP接入方式接入核心网是可信连接时建立的；The first receiving module 1501 is configured to receive the EAP data packet sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is established when the terminal determines that accessing the core network through a satellite in a non-3GPP access mode is a trusted connection. of;

封装模块1502，被配置为将EAP数据包以及卫星的标识信息封装为第一消息，EAP数据包包括网络接入标识符；The encapsulation module 1502 is configured to encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

第一发送模块1503，被配置为将第一消息发送至接入网中的卫星接入网关功能网元，卫星接入网关功能网元提供可信非3GPP网关功能，第一消息用于卫星接入网关功能网元根据第一消息生成注册消息，注册消息包括标识信息。The first sending module 1503 is configured to send the first message to the satellite access gateway functional network element in the access network. The satellite access gateway functional network element provides the trusted non-3GPP gateway function. The first message is used for satellite access. The ingress gateway function network element generates a registration message according to the first message, and the registration message includes identification information.

可选地，标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。Optionally, the identification information includes one or more of a spacecraft ITU identification number, an International Space Research Council number, an international satellite identifier, and a National Space Science Data Center identification.

可选地，第一发送模块1503，被配置为：Optionally, the first sending module 1503 is configured as:

通过卫星与卫星接入网关功能网元的AAA接口，将第一消息发送至卫星接入网关功能网元；其中，第一消息为AAA消息。The first message is sent to the satellite access gateway functional network element through the AAA interface between the satellite and the satellite access gateway functional network element; wherein the first message is an AAA message.

图16是根据一示例性实施例示出的一种通信装置的框图，应用于卫星接入网关功能网元，如图16所示，该通信装置1600包括：Figure 16 is a block diagram of a communication device according to an exemplary embodiment, applied to a satellite access gateway functional network element. As shown in Figure 16, the communication device 1600 includes:

第二接收模块1601，被配置为接收卫星发送的第一消息，第一消息为卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接；The second receiving module 1601 is configured to receive the first message sent by the satellite. The first message is encapsulated by the satellite according to the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP Gateway function, the terminal accesses the core network through satellite through non-3GPP access mode, which is a trusted connection;

生成模块1602，被配置为根据第一消息生成注册消息，注册消息包括标识信息。The generating module 1602 is configured to generate a registration message according to the first message, where the registration message includes identification information.

可选地，通信装置1600包括：Optionally, the communication device 1600 includes:

第二发送模块，被配置为注册消息将注册消息发送至核心网中的目标网元。The second sending module is configured to send the registration message to the target network element in the core network.

可选地，目标网元为AMF网元。Optionally, the target network element is an AMF network element.

可选地，AMF网元用于将标识信息发送给核心网中的UDM网元。Optionally, the AMF network element is used to send identification information to the UDM network element in the core network.

可选地，AMF网元还用于将标识信息发送给核心网中的SMF网元和/或PCF网元。Optionally, the AMF network element is also used to send the identification information to the SMF network element and/or the PCF network element in the core network.

可选地，卫星接入网关功能网元与AMF网元通过N2接口通信，第二发送模块，被配置为：Optionally, the satellite access gateway functional network element communicates with the AMF network element through the N2 interface, and the second sending module is configured as:

通过N2接口向AMF网元发送注册消息。Send a registration message to the AMF network element through the N2 interface.

第二发送子模块，被配置为在与终端的NWt连接成功建立后，通过N2接口向AMF网元发送初始上下文设置响应消息；The second sending submodule is configured to send an initial context setting response message to the AMF network element through the N2 interface after the NWt connection with the terminal is successfully established;

第二接受子模块，被配置为通过N2接口接收AMF网元发送的注册接受消息，并通过NWt连接将注册接受消息发送至终端，注册接受消息用于终端通过可信非3GPP接入方式接入核心网。The second receiving submodule is configured to receive the registration acceptance message sent by the AMF network element through the N2 interface, and send the registration acceptance message to the terminal through the NWt connection. The registration acceptance message is used for the terminal to access through the trusted non-3GPP access method. Core Network.

图17是根据一示例性实施例示出的一种通信装置的框图，应用于核心网的目标网元，如图17所示，通信装置1700包括：Figure 17 is a block diagram of a communication device according to an exemplary embodiment, applied to a target network element of the core network. As shown in Figure 17, the communication device 1700 includes:

第三接收模块1700，被配置为接收卫星接入网关功能网元发送的注册消息，注册消息是根据第一消息生成的，第一消息是卫星根据终端发送的EAP数据包以及卫星的标识信息封装得到的，卫星接入网关功能网元提供可信非3GPP网关功能，终端通过卫星以非3GPP接入方式接入核心网是可信连接。The third receiving module 1700 is configured to receive a registration message sent by the satellite access gateway functional network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. It is obtained that the satellite access gateway functional network element provides a trusted non-3GPP gateway function, and the terminal accessing the core network through the satellite in a non-3GPP access mode is a trusted connection.

可选地，所述目标网元为AMF网元。Optionally, the target network element is an AMF network element.

可选地，所述卫星接入网关功能网元与所述AMF网元通过N2接口通信，第三接收模块1700，被配置为：Optionally, the satellite access gateway function network element communicates with the AMF network element through the N2 interface. The third receiving module 1700 is configured as:

通过N2接口接收所述卫星接入网关功能网元发送注册消息。Receive the registration message sent by the satellite access gateway functional network element through the N2 interface.

可选地，通信装置1700包括：Optionally, the communication device 1700 includes:

第三接收子模块，被配置为通过N2接口接收卫星接入网关功能网元发送的初始上下文设置响应消息，初始上下文设置响应消息是在卫星接入网关功能网元与终端的NWt连接成功建立后发送的；The third receiving submodule is configured to receive the initial context setting response message sent by the satellite access gateway functional network element through the N2 interface. The initial context setting response message is after the NWt connection between the satellite access gateway functional network element and the terminal is successfully established. sent;

第三发送子模块，被配置为通过N2接口向卫星接入网关功能网元发送注册接受消息，注册接收消息用于卫星接入网关功能网元通过NWt连接将注册接受消息发送至终端。The third sending submodule is configured to send a registration acceptance message to the satellite access gateway functional network element through the N2 interface. The registration acceptance message is used by the satellite access gateway functional network element to send the registration acceptance message to the terminal through the NWt connection.

第四发送子模块，被配置为在终端基于注册接受消息通过可信非3GPP方式接入核心网后，将注册消息中的标识信息，发送至UDM网元、SMF网元或者PCF网元中的一者或多者。The fourth sending submodule is configured to send the identification information in the registration message to the UDM network element, SMF network element or PCF network element after the terminal accesses the core network through a trusted non-3GPP method based on the registration acceptance message. one or more.

可选地，第四发送子模块，被配置为：Optionally, the fourth sending sub-module is configured as:

图18是根据一示例性实施例示出的一种通信装置的框图，应用于终端，如图18所示，通信装置1800包括：Figure 18 is a block diagram of a communication device according to an exemplary embodiment, applied to a terminal. As shown in Figure 18, the communication device 1800 includes:

确定模块1801，被配置为在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与卫星的层二连接；The determination module 1801 is configured to establish a Layer 2 connection with the satellite when it is determined that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection;

第三发送模块1802，被配置为通过层二连接向卫星发送EAP数据包，EAP数据包用于卫星将EAP数据包以及卫星的标识信息封装为第一消息。The third sending module 1802 is configured to send an EAP data packet to the satellite through a Layer 2 connection. The EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message.

可选地，第三发送模块1802，被配置为：Optionally, the third sending module 1802 is configured as:

响应于接收到卫星通过层二连接发送的EAP请求，通过层二连接向卫星发送EAP数据包。In response to receiving an EAP request sent by the satellite over the Layer 2 connection, an EAP packet is sent to the satellite over the Layer 2 connection.

以上对本公开实施例的装置进行说明，需要说明的是，其中各个模块的功能已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。The device of the embodiment of the present disclosure has been described above. It should be noted that the functions of each module have been described in detail in the embodiment of the method and will not be explained in detail here.

图19是根据一示例性实施例示出的一种电子设备1900的框图。该电子设备1900可以被提供为一个终端，例如，电子设备1900可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。FIG. 19 is a block diagram of an electronic device 1900 according to an exemplary embodiment. The electronic device 1900 may be provided as a terminal, for example, the electronic device 1900 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

参照图19，电子设备1900可以包括以下一个或多个组件：处理组件1902，存储器1904，电力组件1906，多媒体组件1908，音频组件1910，输入/输出(I/O)的接口1912，传感器组件1914，以及通信组件1916。Referring to FIG. 19 , electronic device 1900 may include one or more of the following components: processing component 1902 , memory 1904 , power component 1906 , multimedia component 1908 , audio component 1910 , input/output (I/O) interface 1912 , sensor component 1914 , and communications component 1916.

处理组件1902通常控制电子设备1900的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1902可以包括一个或多个处理器1920来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1902可以包括一个或多个模块，便于处理组件1902和其他组件之间的交互。例如，处理组件1902可以包括多媒体模块，以方便多媒体组件1908和处理组件1902之间的交互。 Processing component 1902 generally controls the overall operations of electronic device 1900, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1902 may include one or more processors 1920 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 1902 may include one or more modules that facilitate interaction between processing component 1902 and other components. For example, processing component 1902 may include a multimedia module to facilitate interaction between multimedia component 1908 and processing component 1902.

存储器1904被配置为存储各种类型的数据以支持在电子设备1900的操作。这些数据的示例包括用于在电子设备1900上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1904可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。 Memory 1904 is configured to store various types of data to support operations at electronic device 1900 . Examples of such data include instructions for any application or method operating on electronic device 1900, contact data, phonebook data, messages, pictures, videos, etc. Memory 1904 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

电力组件1906为电子设备1900的各种组件提供电力。电力组件1906可以包括电源管理***，一个或多个电源，及其他与为电子设备1900生成、管理和分配电力相关联的组件。 Power component 1906 provides power to various components of electronic device 1900 . Power components 1906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1900 .

多媒体组件1908包括在所述电子设备1900和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1908包括一个前置摄像头和/或后置摄像头。当电子设备1900处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜***或具有焦距和光学变焦能力。 Multimedia component 1908 includes a screen that provides an output interface between the electronic device 1900 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action. In some embodiments, multimedia component 1908 includes a front-facing camera and/or a rear-facing camera. When the electronic device 1900 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

音频组件1910被配置为输出和/或输入音频信号。例如，音频组件1910包括一个麦克风(MIC)，当电子设备1900处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1904或经由通信组件1916发送。在一些实施例中，音频组件1910还包括一个扬声器，用于输出音频信号。 Audio component 1910 is configured to output and/or input audio signals. For example, audio component 1910 includes a microphone (MIC) configured to receive external audio signals when electronic device 1900 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1904 or sent via communications component 1916 . In some embodiments, audio component 1910 also includes a speaker for outputting audio signals.

I/O接口1912为处理组件1902和***接口模块之间提供接口，上述***接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。The I/O interface 1912 provides an interface between the processing component 1902 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

传感器组件1914包括一个或多个传感器，用于为电子设备1900提供各个方面的状态评估。例如，传感器组件1914可以检测到电子设备1900的打开/关闭状态，组件的相对定位，例如所述组件为电子设备1900的显示器和小键盘，传感器组件1914还可以检测电子设备1900或电子设备1900一个组件的位置改变，用户与电子设备1900接触的存在或不存在，电子设备1900方位或加速/减速和电子设备1900的温度变化。传感器组件1914可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1914还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1914还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。 Sensor component 1914 includes one or more sensors for providing various aspects of status assessment for electronic device 1900 . For example, the sensor component 1914 can detect the open/closed state of the electronic device 1900, the relative positioning of components, such as the display and keypad of the electronic device 1900, the sensor component 1914 can also detect the electronic device 1900 or one of the electronic device 1900. The position of components changes, the presence or absence of user contact with the electronic device 1900 , the orientation or acceleration/deceleration of the electronic device 1900 and the temperature of the electronic device 1900 change. Sensor assembly 1914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

通信组件1916被配置为便于电子设备1900和其他设备之间有线或无线方式的通信。电子设备1900可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1916经由广播信道接收来自外部广播管理***的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1916还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。 Communication component 1916 is configured to facilitate wired or wireless communication between electronic device 1900 and other devices. The electronic device 1900 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 1916 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communications component 1916 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

在示例性实施例中，电子设备1900可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。In an exemplary embodiment, electronic device 1900 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programmable gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation is used to perform the above method.

在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1904，上述指令可由电子设备1900的处理器1920执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 1904 including instructions, which can be executed by the processor 1920 of the electronic device 1900 to complete the above method is also provided. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述通信方法的代码部分。In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device. The code part of the communication method.

图20是根据一示例性实施例示出的一种网络设备的框图。例如，网络设备2000可以被提供为一卫星，也可以被提供为一核心网或者接入网中的其他网络逻辑实体。参照图20，网络设备2000包括处理组件2022，其进一步包括一个或多个处理器，以及由存储器2032所代表的存储器资源，用于存储可由处理组件2022的执行的指令，例如应用程序。存储器2032中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件2022被配置为执行指令，以执行上述方法实施例提供的通信方法的步骤。Figure 20 is a block diagram of a network device according to an exemplary embodiment. For example, the network device 2000 may be provided as a satellite, or may be provided as a core network or other network logical entity in an access network. Referring to Figure 20, network device 2000 includes a processing component 2022, which further includes one or more processors, and memory resources represented by memory 2032 for storing instructions, such as application programs, executable by processing component 2022. The application program stored in memory 2032 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 2022 is configured to execute instructions to perform steps of the communication method provided by the above method embodiments.

网络设备2000还可以包括一个电源组件2026被配置为执行装置2000的电源管理，一个有线或无线网络接口2050被配置为将网络设备2000连接到网络，和一个输入输出(I/O)接口2058。网络设备2000可以操作基于存储在存储器2032的操作***，例如Windows Server ^TM，Mac OS X ^TM，Unix ^TM，Linux ^TM，FreeBSD ^TM或类似。 Network device 2000 may also include a power supply component 2026 configured to perform power management of device 2000, a wired or wireless network interface 2050 configured to connect network device 2000 to a network, and an input-output (I/O) interface 2058. Network device 2000 may operate based on an operating system stored in memory 2032, such as Windows Server ^™ , Mac OS X ^™ , Unix ^™ , Linux ^™ , FreeBSD ^™ or the like.

在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述的通信方法的代码部分。In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device. The code part of the communication method.

本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common knowledge or customary technical means in the technical field that are not disclosed in the disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

Claims

一种通信方法，其特征在于，应用于卫星，所述卫星作为接入点，用于终端通过所述卫星以非3GPP接入方式接入核心网，所述方法包括：A communication method, characterized in that it is applied to satellites, and the satellites serve as access points for terminals to access the core network through the satellites in a non-3GPP access mode. The method includes:

通过与所述终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；Receive the EAP data packet sent by the terminal through the layer 2 connection with the terminal. The layer 2 connection is when the terminal determines that accessing the core network through the satellite in a non-3GPP access mode is a trusted connection. Established;

将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；Encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述第一消息用于所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。The first message is sent to the satellite access gateway function network element in the access network. The satellite access gateway function network element provides a trusted non-3GPP gateway function. The first message is used for the satellite access network element. The gateway function network element generates a registration message according to the first message, and the registration message includes the identification information.
根据权利要求1所述的方法，其特征在于，所述标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。The method according to claim 1, characterized in that the identification information includes one or more of the spacecraft ITU identification number, the International Space Research Council number, the international satellite identifier, and the National Aerospace Science Data Center identification. By.
根据权利要求1所述的方法，其特征在于，所述将所述第一消息发送至接入网中的卫星接入网关功能网元包括：The method according to claim 1, wherein sending the first message to the satellite access gateway function network element in the access network includes:

通过所述卫星与所述卫星接入网关功能网元的AAA接口，将所述第一消息发送至所述卫星接入网关功能网元；其中，所述第一消息为AAA消息。The first message is sent to the satellite access gateway functional network element through the AAA interface between the satellite and the satellite access gateway functional network element; wherein the first message is an AAA message.
一种通信方法，其特征在于，应用于卫星接入网关功能网元，所述方法包括：A communication method, characterized in that it is applied to a satellite access gateway functional network element, and the method includes:

接收卫星发送的第一消息，所述第一消息为所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接；Receive the first message sent by the satellite. The first message is encapsulated by the satellite according to the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway functional network element provides a trusted non-3GPP gateway. Function, the terminal accessing the core network through the satellite in a non-3GPP access mode is a trusted connection;

根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。A registration message is generated according to the first message, and the registration message includes the identification information.
根据权利要求4所述的方法，其特征在于，所述标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。The method according to claim 4, characterized in that the identification information includes one or more of the spacecraft ITU identity number, the International Space Research Council number, the international satellite identifier, and the National Aerospace Science Data Center identification. By.
根据权利要求4所述的方法，其特征在于，所述方法包括：The method according to claim 4, characterized in that the method includes:

将所述注册消息发送至核心网中的目标网元。Send the registration message to the target network element in the core network.
根据权利要求5所述的方法，其特征在于，所述目标网元为AMF网元。The method according to claim 5, characterized in that the target network element is an AMF network element.
根据权利要求7所述的方法，其特征在于，所述AMF网元用于将所述标识信息发送给所述核心网中的UDM网元。The method according to claim 7, characterized in that the AMF network element is used to send the identification information to the UDM network element in the core network.
根据权利要求7所述的方法，其特征在于，所述AMF网元还用于将所述标识信息发送给所述核心网中的SMF网元和/或PCF网元。The method according to claim 7, characterized in that the AMF network element is further configured to send the identification information to the SMF network element and/or the PCF network element in the core network.
根据权利要求7所述的方法，其特征在于，所述卫星接入网关功能网元与所述AMF网元通过N2接口通信，所述将所述注册消息发送至核心网中的目标网元包括：The method according to claim 7, characterized in that the satellite access gateway functional network element communicates with the AMF network element through an N2 interface, and the sending the registration message to the target network element in the core network includes :

通过N2接口向所述AMF网元发送注册消息。Send a registration message to the AMF network element through the N2 interface.
根据权利要求10所述的方法，其特征在于，所述方法包括：The method according to claim 10, characterized in that the method includes:

在与所述终端的NWt连接成功建立后，通过所述N2接口向所述AMF网元发送初始上下文设置响应消息；After the NWt connection with the terminal is successfully established, send an initial context setting response message to the AMF network element through the N2 interface;

通过所述N2接口接收所述AMF网元发送的注册接受消息，并通过NWt连接将所述注册接受消息发送至所述终端，所述注册接受消息用于所述终端通过可信非3GPP接入方式接入所述核心网。The registration acceptance message sent by the AMF network element is received through the N2 interface, and the registration acceptance message is sent to the terminal through the NWt connection. The registration acceptance message is used for the terminal to access through trusted non-3GPP. method to access the core network.
一种通信方法，其特征在于，应用于核心网的目标网元，所述方法包括：A communication method, characterized in that it is applied to a target network element of a core network, and the method includes:

接收卫星接入网关功能网元发送的注册消息，所述注册消息是根据第一消息生成的，所述第一消息是所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接。Receive a registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is encapsulated by the satellite based on the EAP data packet sent by the terminal and the identification information of the satellite. , the satellite access gateway function network element provides a trusted non-3GPP gateway function, and the terminal accesses the core network through the satellite in a non-3GPP access mode, which is a trusted connection.
根据权利要求12所述的方法，其特征在于，所述标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。The method according to claim 12, characterized in that the identification information includes one or more of the spacecraft ITU identity number, the International Space Research Council number, the international satellite identifier, and the National Aerospace Science Data Center identification. By.
根据权利要求12所述的方法，其特征在于，所述目标网元为AMF网元。The method according to claim 12, characterized in that the target network element is an AMF network element.
根据权利要求14所述的方法，其特征在于，所述卫星接入网关功能网元与所述AMF网元通过N2接口通信，所述接收卫星接入网关功能网元发送的注册消息包括：The method according to claim 14, characterized in that the satellite access gateway functional network element communicates with the AMF network element through an N2 interface, and the receiving the registration message sent by the satellite access gateway functional network element includes:

通过N2接口接收所述AMF网元发送注册消息。Receive registration messages sent by the AMF network element through the N2 interface.
根据权利要求15所述的方法，其特征在于，所述方法包括：The method according to claim 15, characterized in that the method includes:

通过所述N2接口接收所述卫星接入网关功能网元发送的初始上下文设置响应消息，所述初始上下文设置响应消息是在所述卫星接入网关功能网元与所述终端的NWt连接成功建立后发送的；The initial context setting response message sent by the satellite access gateway functional network element is received through the N2 interface. The initial context setting response message is received after the NWt connection between the satellite access gateway functional network element and the terminal is successfully established. sent later;

通过所述N2接口向所述卫星接入网关功能网元发送注册接受消息，所述注册接收消息用于所述卫星接入网关功能网元通过NWt连接将所述注册接受消息发送至所述终端。Send a registration acceptance message to the satellite access gateway functional network element through the N2 interface, and the registration acceptance message is used by the satellite access gateway functional network element to send the registration acceptance message to the terminal through the NWt connection. .
根据权利要求14所述的方法，其特征在于，所述方法包括：The method according to claim 14, characterized in that the method includes:

在所述终端基于所述注册接受消息通过所述可信非3GPP方式接入所述核心网后，将所述注册消息中的标识信息，发送至UDM网元、SMF网元或者PCF网元中的一者或多者。After the terminal accesses the core network through the trusted non-3GPP method based on the registration acceptance message, the identification information in the registration message is sent to the UDM network element, SMF network element or PCF network element. one or more of.
根据权利要求17所述的方法，其特征在于，将所述注册消息中的标识信息，发送至UDM网元包括：The method according to claim 17, characterized in that sending the identification information in the registration message to the UDM network element includes:

在所述AMF网元向所述UDM网元注册时，将目标接入类型与所述标识信息通过AMF注册请求发送至所述UDM网元。When the AMF network element registers with the UDM network element, the target access type and the identification information are sent to the UDM network element through an AMF registration request.
一种通信方法，其特征在于，应用于终端，所述方法包括：A communication method, characterized in that it is applied to a terminal, and the method includes:

在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与所述卫星的层二连接；When it is determined that accessing the core network through a satellite in a non-3GPP access mode is a trusted connection, establish a Layer 2 connection with the satellite;

通过所述层二连接向所述卫星发送EAP数据包，所述EAP数据包用于所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息。An EAP data packet is sent to the satellite through the layer 2 connection, and the EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message.
根据权利要求19所述的方法，其特征在于，所述标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。The method according to claim 19, characterized in that the identification information includes one or more of the spacecraft ITU identity number, the International Space Research Committee number, the international satellite identifier, and the National Aerospace Science Data Center identification. By.
根据权利要求19所述的方法，其特征在于，所述通过所述层二连接向所述卫星发送EAP数据包包括：The method according to claim 19, wherein sending the EAP data packet to the satellite through the layer 2 connection includes:

响应于接收到所述卫星通过所述层二连接发送的EAP请求，通过所述层二连接向所述卫星发送EAP数据包。In response to receiving an EAP request sent by the satellite over the layer two connection, sending an EAP data packet to the satellite over the layer two connection.
一种通信方法，其特征在于，应用于通信***，所述通信***包括卫星、卫星接入网关功能网元以及目标网元，所述卫星作为接入点，以供终端通过所述卫星以非3GPP接入方式接入核心网，所述方法包括：所述卫星通过与终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；A communication method, characterized in that it is applied to a communication system. The communication system includes a satellite, a satellite access gateway functional network element, and a target network element. The satellite serves as an access point for terminals to use non-transportation via the satellite. The 3GPP access method is used to access the core network. The method includes: the satellite receives the EAP data packet sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is for the terminal to determine whether to pass the satellite. Access to the core network using non-3GPP access methods is established when a trusted connection is established;

所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；The satellite encapsulates the EAP data packet and the identification information of the satellite into a first message, and the EAP data packet includes a network access identifier;

所述卫星将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能；The satellite sends the first message to a satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function;

所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息；The satellite access gateway function network element generates a registration message according to the first message, and the registration message includes the identification information;

所述卫星接入网关功能网元将所述注册消息发送至所述目标网元。The satellite access gateway function network element sends the registration message to the target network element.
根据权利要求22所述的方法，其特征在于，所述标识信息包括航天器国际电联身份编号、国际空间研究委员会编号、国际卫星标识符，以及国家航天科学数据中心标识中的一者或多者。The method according to claim 22, characterized in that the identification information includes one or more of the spacecraft ITU identity number, the International Space Research Council number, the international satellite identifier, and the National Aerospace Science Data Center identification. By.
根据权利要求22所述的方法，其特征在于，所述目标网元为AMF网元。The method according to claim 22, characterized in that the target network element is an AMF network element.
根据权利要求24所述的方法，其特征在于，所述卫星接入网关功能网元与所述AMF网元通过N2接口通信，所述卫星接入网关功能网元将所述注册消息发送至所述目标网元包括：The method according to claim 24, characterized in that the satellite access gateway functional network element communicates with the AMF network element through an N2 interface, and the satellite access gateway functional network element sends the registration message to the The target network elements include:

所述卫星接入网关功能网元通过N2接口向所述AMF网元发送注册消息。The satellite access gateway function network element sends a registration message to the AMF network element through the N2 interface.
根据权利要求25所述的方法，其特征在于，所述方法包括：The method according to claim 25, characterized in that the method includes:

所述卫星接入网关功能网元在与所述终端的NWt连接成功建立后，通过所述N2接口向所述AMF网元发送初始上下文设置响应消息；After the NWt connection with the terminal is successfully established, the satellite access gateway function network element sends an initial context setting response message to the AMF network element through the N2 interface;

所述卫星接入网关功能网元通过所述N2接口接收所述AMF网元发送的注册接受消息，并通过NWt连接将所述注册接受消息发送至所述终端，所述注册接受消息用于所述终端通过可信非3GPP接入方式接入所述核心网。The satellite access gateway function network element receives the registration acceptance message sent by the AMF network element through the N2 interface, and sends the registration acceptance message to the terminal through the NWt connection. The registration acceptance message is used for all The terminal accesses the core network through a trusted non-3GPP access method.
根据权利要求26所述的方法，其特征在于，所述方法包括：The method according to claim 26, characterized in that the method includes:

所述卫星在所述终端基于所述注册接受消息通过所述可信非3GPP方式接入所述核心网后，将所述注册消息中的标识信息，发送至UDM网元、SMF网元或者PCF网元中的一者或多者。After the terminal accesses the core network through the trusted non-3GPP method based on the registration acceptance message, the satellite sends the identification information in the registration message to the UDM network element, SMF network element or PCF One or more of the network elements.
根据权利要求27所述的方法，其特征在于，所述卫星将所述注册消息中的标识信息，发送至UDM网元包括：The method according to claim 27, wherein the satellite sending the identification information in the registration message to the UDM network element includes:

所述卫星在所述AMF网元向所述UDM网元注册时，将目标接入类型与所述标识信息通过AMF注册请求发送至所述UDM网元。When the AMF network element registers with the UDM network element, the satellite sends the target access type and the identification information to the UDM network element through an AMF registration request.
一种通信装置，其特征在于，应用于卫星，所述卫星作为接入点，用于终端通过所述卫星以非3GPP接入方式接入核心网，所述装置包括：A communication device, characterized in that it is applied to a satellite, and the satellite serves as an access point for terminals to access the core network through the satellite in a non-3GPP access mode. The device includes:

第一接收模块，被配置为通过与所述终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；The first receiving module is configured to receive the EAP data packet sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is used by the terminal when determining to access the satellite in a non-3GPP access mode. The access to the core network is established when a trusted connection is established;

封装模块，被配置为将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；An encapsulation module configured to encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

第一发送模块，被配置为将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述第一消息用于所述卫星接入网关功能网元根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。The first sending module is configured to send the first message to a satellite access gateway functional network element in the access network. The satellite access gateway functional network element provides a trusted non-3GPP gateway function. The first The message is used by the satellite access gateway function network element to generate a registration message according to the first message, and the registration message includes the identification information.
一种通信装置，其特征在于，应用于卫星接入网关功能网元，所述装置包括：A communication device, characterized in that it is applied to a satellite access gateway functional network element, and the device includes:

第二接收模块，被配置为接收卫星发送的第一消息，所述第一消息为所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接；The second receiving module is configured to receive the first message sent by the satellite. The first message is encapsulated by the satellite according to the EAP data packet sent by the terminal and the identification information of the satellite. The satellite access gateway function The network element provides a trusted non-3GPP gateway function, and the terminal's access to the core network through the satellite in a non-3GPP access mode is a trusted connection;

生成模块，被配置为根据所述第一消息生成注册消息，所述注册消息包括所述标识信息。A generating module configured to generate a registration message according to the first message, where the registration message includes the identification information.
一种通信装置，其特征在于，应用于核心网的目标网元，所述方法包括：A communication device, characterized in that it is applied to a target network element of a core network, and the method includes:

第三接收模块，被配置为接收卫星接入网关功能网元发送的注册消息，所述注册消息是根据第一消息生成的，所述第一消息是所述卫星根据终端发送的EAP数据包以及所述卫星的标识信息封装得到的，所述卫星接入网关功能网元提供可信非3GPP网关功能，所述终端通过所述卫星以非3GPP接入方式接入核心网是可信连接。The third receiving module is configured to receive a registration message sent by the satellite access gateway function network element. The registration message is generated based on the first message. The first message is the EAP data packet sent by the satellite based on the terminal and The identification information of the satellite is encapsulated, the satellite access gateway functional network element provides a trusted non-3GPP gateway function, and the terminal accesses the core network through the satellite in a non-3GPP access mode is a trusted connection.
一种通信装置，其特征在于，应用于终端，所述装置包括：A communication device, characterized in that it is applied to a terminal, and the device includes:

确定模块，被配置为在确定通过卫星以非3GPP接入方式接入核心网是可信连接时，建立与所述卫星的层二连接；A determination module configured to establish a layer 2 connection with the satellite when it is determined that accessing the core network through a satellite in a non-3GPP access mode is a trusted connection;

第三发送模块，被配置为通过所述层二连接向所述卫星发送EAP数据包，所述EAP数据包用于所述卫星将所述EAP数据包以及所述卫星的标识信息封装为第一消息，并将所述第一消息发送至所述卫星接入网关功能网元。The third sending module is configured to send an EAP data packet to the satellite through the layer 2 connection. The EAP data packet is used by the satellite to encapsulate the EAP data packet and the identification information of the satellite into a first message, and sends the first message to the satellite access gateway functional network element.
一种通信***，其特征在于，所述通信***包括卫星、卫星接入网关功能网元以及目标网元，所述卫星作为接入点，以供终端通过所述卫星以非3GPP接入方式接入核心网；A communication system, characterized in that the communication system includes a satellite, a satellite access gateway function network element and a target network element, and the satellite serves as an access point for terminals to access in a non-3GPP access mode through the satellite. into the core network;

所述卫星用于通过与终端的层二连接，接收所述终端发送的EAP数据包，所述层二连接为所述终端在确定通过所述卫星以非3GPP接入方式接入核心网是可信连接时建立的；The satellite is used to receive EAP data packets sent by the terminal through a layer 2 connection with the terminal. The layer 2 connection is used for the terminal to determine whether it is possible to access the core network through the satellite in a non-3GPP access mode. Established during the letter connection;

所述卫星用于将所述EAP数据包以及所述卫星的标识信息封装为第一消息，所述EAP数据包包括网络接入标识符；The satellite is configured to encapsulate the EAP data packet and the identification information of the satellite into a first message, where the EAP data packet includes a network access identifier;

所述卫星用于将所述第一消息发送至接入网中的卫星接入网关功能网元，所述卫星接入网关功能网元提供可信非3GPP网关功能；The satellite is used to send the first message to a satellite access gateway functional network element in the access network, and the satellite access gateway functional network element provides a trusted non-3GPP gateway function;

所述卫星接入网关功能网元用于根据所述第一消息生成注册消息，所述注册消息包括所述标识信息；The satellite access gateway functional network element is configured to generate a registration message according to the first message, where the registration message includes the identification information;

所述卫星接入网关功能网元用于将所述注册消息发送至所述目标网元。The satellite access gateway function network element is used to send the registration message to the target network element.
一种电子设备，其特征在于，包括：An electronic device, characterized by including:

处理器；processor;

用于存储处理器可执行指令的存储器；Memory used to store instructions executable by the processor;

其中，所述处理器被配置为执行权利要求1-3中任一项所述方法的步骤，或者权利要求4-11中任一项所述方法的步骤，或者权利要求12-18中任一项所述方法的步骤，或者权利要求19-21中任一项所述方法的步骤。Wherein, the processor is configured to perform the steps of the method described in any one of claims 1-3, or the steps of the method described in any one of claims 4-11, or any one of claims 12-18. The steps of the method described in claim 19, or the steps of the method described in any one of claims 19-21.
一种计算机可读存储介质，其上存储有计算机程序指令，其特征在于，该程序指令被处理器执行时实现权利要求1-3中任一项所述方法的步骤，或者权利要求4-11中任一项所述方法的步骤，或者权利要求12-18中任一项所述方法的步骤，或者权利要求19-21中任一项所述方法的步骤。A computer-readable storage medium with computer program instructions stored thereon, characterized in that when the program instructions are executed by a processor, the steps of the method described in any one of claims 1-3 are implemented, or claims 4-11 The steps of the method described in any one of claims 12-18, or the steps of the method described in any one of claims 19-21.