CN114945015B - Information acquisition method, device and storage medium - Google Patents

Information acquisition method, device and storage medium Download PDF

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CN114945015B
CN114945015B CN202210582610.1A CN202210582610A CN114945015B CN 114945015 B CN114945015 B CN 114945015B CN 202210582610 A CN202210582610 A CN 202210582610A CN 114945015 B CN114945015 B CN 114945015B
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CN114945015A (en
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邢天齐
任驰
马瑞涛
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China United Network Communications Group Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
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    • H04L41/0813Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
    • HELECTRICITY
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Abstract

本申请提供一种信息获取方法、装置及存储介质,涉及通信领域,该方法包括:会话管理功能SMF网元接收统一数据存储库UDR网元发送的第一边缘应用服务器的部署信息ED I;第一ED I包括数据网络名称DNN、单网络切片选择辅助信息S‑NSSA I以及边缘应用服务器EAS的全称域名FQDN;在第一时间段大于或等于预设时长的情况下,SMF网元接收UDR网元发送的更新后的第一ED I,第一时间段包括:SMF网元接收第一ED I之后的时间段,和/或,UDR网元发送第一ED I之后的时间段。该方法适用于SMF网元为EASDF网元配置DNS消息处理规则的过程中,用于解决配置过程中ED I失效的问题。

Figure 202210582610

The present application provides an information acquisition method, device, and storage medium, which relate to the communication field, and the method includes: the session management function SMF network element receives the deployment information EDI of the first edge application server sent by the unified data storage library UDR network element; An ED I includes the data network name DNN, the single network slice selection auxiliary information S-NSSA I and the full name domain name FQDN of the edge application server EAS; in the case that the first time period is greater than or equal to the preset duration, the SMF network element receives the UDR network For the updated first EDI sent by the element, the first time period includes: a time period after the SMF network element receives the first EDI, and/or, a time period after the UDR network element sends the first EDI. This method is applicable to the process in which the SMF network element configures DNS message processing rules for the EASDF network element, and is used to solve the problem of EDI failure during the configuration process.

Figure 202210582610

Description

信息获取方法、装置及存储介质Information acquisition method, device and storage medium

技术领域technical field

本申请涉及通信领域,尤其涉及一种信息获取方法、装置及存储介质。The present application relates to the communication field, and in particular to an information acquisition method, device and storage medium.

背景技术Background technique

目前,第三代合作伙伴计划(3rd generation partnership project,3GPP)边缘计算标准(3GPP SA2 R17)中定义了,会话管理功能(session management function,SMF)网元可以从统一数据存储库(unified data repository,UDR)网元中获取边缘应用服务器的部署信息(edge application server deployment information,EDI)并存储,用以生成域名系统(domain name system,DNS)消息处理规则。SMF网元可以利用DNS消息处理规则分配边缘环境中的边缘应用服务器(edge application server,EAS)。Currently, the 3rd generation partnership project (3GPP) edge computing standard (3GPP SA2 R17) defines that the session management function (session management function, SMF) network element can be obtained from the unified data repository (unified data repository) , UDR) network element to acquire and store edge application server deployment information (EDI) to generate domain name system (domain name system, DNS) message processing rules. SMF network elements can use DNS message processing rules to allocate edge application servers (edge application server, EAS) in the edge environment.

但是,SMF网元中存储的EDI可能存在失效的EDI,失效的EDI会导致SMF网元无法正确分配EAS。However, the EDI stored in the SMF network element may have invalid EDI, and the invalid EDI will cause the SMF network element to fail to correctly allocate the EAS.

发明内容Contents of the invention

本申请提供一种信息获取方法、装置及存储介质,可以不断更新SMF网元中存储的EDI,从而提高SMF网元中存储的EDI的有效性。The present application provides an information acquisition method, device and storage medium, which can continuously update the EDI stored in the SMF network element, thereby improving the effectiveness of the EDI stored in the SMF network element.

第一方面,本申请提供一种信息获取方法,该方法包括:会话管理功能SMF网元接收边缘应用服务器发现功能EASDF网元发送的域名系统DNS查询信息;DNS查询信息包括第一用户设备UE的地址信息和边缘应用服务器EAS的全称域名FQDN;SMF网元根据第一UE的地址信息和EAS的FQDN,确定第一UE分别对应的DNN、S-NSSAI以及应用标识;SMF网元根据DNS查询信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,向统一数据存储库UDR网元发送订阅信息;订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识;SMF网元接收UDR网元发送的第一EDI,第一EDI是UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识所确定的;第一EDI包括DNN、S-NSSAI、应用标识以及EAS的FQDN;SMF网元根据第一EDI,确定第一DNS消息处理规则;SMF网元向EASDF网元发送第一DNS消息处理规则,以使得EASDF网元根据第一DNS消息处理规则,为第一UE查询FQDN对应的EAS的网际协议IP地址;在第一时间段大于或等于预设时长的情况下,所述SMF网元接收所述UDR网元发送的更新后的第一EDI,所述第一时间段包括:所述SMF网元接收到所述第一EDI之后的时间段,和/或,所述UDR网元发送所述第一EDI之后的时间段。In a first aspect, the present application provides an information acquisition method, which includes: a session management function SMF network element receives domain name system DNS query information sent by an edge application server discovery function EASDF network element; the DNS query information includes the first user equipment UE The address information and the full domain name FQDN of the edge application server EAS; the SMF network element determines the DNN, S-NSSAI and application identifier corresponding to the first UE according to the address information of the first UE and the FQDN of the EAS; the SMF network element determines the information according to the DNS query The DNN, S-NSSAI and application identification corresponding to the first UE in the network respectively, send subscription information to the UDR network element in the unified data repository; the subscription information includes the DNN, S-NSSAI and application identification corresponding to the first UE respectively; the SMF network element Receive the first EDI sent by the UDR network element. The first EDI is determined by the UDR network element according to the DNN, S-NSSAI and application identifier corresponding to the first UE in the subscription information; the first EDI includes DNN, S-NSSAI, The application identifier and the FQDN of the EAS; the SMF network element determines the first DNS message processing rule according to the first EDI; the SMF network element sends the first DNS message processing rule to the EASDF network element, so that the EASDF network element processes the first DNS message according to the rule Querying the Internet Protocol IP address of the EAS corresponding to the FQDN for the first UE; when the first time period is greater than or equal to a preset time length, the SMF network element receives the updated first EDI sent by the UDR network element , the first time period includes: a time period after the SMF network element receives the first EDI, and/or, a time period after the UDR network element sends the first EDI.

一种可能的实现方式中,在第一时间段大于或等于预设时长的情况下,所述SMF网元接收所述UDR网元发送的更新后的第一EDI,所述第一时间段包括:所述SMF网元接收到所述第一EDI之后的时间段,和/或,所述UDR网元发送所述第一EDI之后的时间段,包括:当SMF网元接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,SMF网元向UDR网元发送更新请求信息;SMF网元接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In a possible implementation manner, when the first time period is greater than or equal to a preset duration, the SMF network element receives the updated first EDI sent by the UDR network element, and the first time period includes : the time period after the SMF network element receives the first EDI, and/or, the time period after the UDR network element sends the first EDI, including: when the SMF network element receives the message sent by the UDR network element When the time period after the first EDI is greater than or equal to the preset duration, the SMF network element sends an update request message to the UDR network element; the SMF network element receives the update response message sent by the UDR network element; the update response message includes the updated first EDI .

另一种可能的实现方式中,更新后的第一EDI是UDR网元在向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,由UDR网元获取并向SMF网元发送的。In another possible implementation, the updated first EDI is obtained by the UDR network element and sent to the SMF network element when the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to the preset duration. sent.

又一种可能的实现方式中,在第一时间段大于或等于预设时长的情况下,SMF网元接收UDR网元发送的更新后的第一EDI,第一时间段包括:SMF网元接收到第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段,包括:当SMF网元接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长,且SMF网元未接收到UDR网元发送的更新后的第一EDI时,SMF网元向UDR网元发送更新请求信息;SMF网元接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In another possible implementation, when the first time period is greater than or equal to the preset duration, the SMF network element receives the updated first EDI sent by the UDR network element, and the first time period includes: the SMF network element receives The time period after the first EDI, and/or, the time period after the UDR network element sends the first EDI, includes: when the SMF network element receives the first EDI sent by the UDR network element, the time period is greater than or equal to the preset duration , and the SMF network element does not receive the updated first EDI sent by the UDR network element, the SMF network element sends an update request message to the UDR network element; the SMF network element receives the update response message sent by the UDR network element; the update response message includes Updated first EDI.

又一种可能的实现方式中,在第一时间段大于或等于预设时长的情况下,SMF网元接收UDR网元发送的更新后的第一EDI之后,该方法还包括:SMF网元清理第一EDI的缓存。本申请提供的信息获取方法中,在SMF网元接收到UDR网元发送的第一EDI之后的时间段,和/或,UDR网元向SMF网元发送第一EDI之后的时间段大于或等于预设时长的情况下,SMF网元可以接收UDR网元发送的更新之后的第一EDI,与3GPP SA2 R17中的边缘计算项目相比,利用本申请提供的信息获取方法的SMF网元中的第一EDI可以实时更新,整体上第一EDI失效的概率较低,提高了SMF网元中存储的EDI的有效性,从而为SMF网元分配EAS提供了保障。In another possible implementation, when the first time period is greater than or equal to the preset duration, after the SMF network element receives the updated first EDI sent by the UDR network element, the method further includes: SMF network element cleaning A cache of the first EDI. In the information acquisition method provided by this application, the time period after the SMF network element receives the first EDI sent by the UDR network element, and/or, the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to In the case of a preset duration, the SMF network element can receive the updated first EDI sent by the UDR network element. Compared with the edge computing project in 3GPP SA2 R17, the SMF network element using the information acquisition method provided by this application The first EDI can be updated in real time, and the failure probability of the first EDI is low overall, which improves the effectiveness of the EDI stored in the SMF network element, thereby providing a guarantee for the allocation of EAS by the SMF network element.

第二方面,本申请提供一种信息获取装置,该装置可以应用于会话管理功能SMF网元。该装置可以包括:收发模块和处理模块。收发模块和处理模块连接。收发模块,用于接收EASDF网元发送的DNS查询信息,DNS查询信息包括第一UE的地址信息和EAS的FQDN;处理模块,用于根据DNS查询信息中的第一UE的地址信息和EAS的FQDN,确定第一UE分别对应的DNN、S-NSSAI以及应用标识;收发模块,还用于根据第一UE分别对应的DNN、S-NSSAI以及应用标识,向统一数据存储库UDR网元发送订阅信息,订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识;接收UDR网元发送的第一EDI,第一EDI是UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识所确定的;第一EDI包括DNN、S-NSSAI、应用标识以及EAS的FQDN;处理模块,还用于根据第一EDI,确定第一DNS消息处理规则;收发模块,还用于向EASDF网元发送第一DNS消息处理规则,以使得EASDF网元根据第一DNS消息处理规则,为第一UE查询FQDN对应的EAS的网际协议IP地址;收发模块,还用于在第一时间段大于或等于预设时长的情况下,接收UDR网元发送的更新后的第一EDI,第一时间段包括:收发模块接收到第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段。In a second aspect, the present application provides an information acquisition device, which can be applied to a SMF network element with a session management function. The device may include: a transceiver module and a processing module. The transceiver module is connected with the processing module. The transceiver module is configured to receive DNS query information sent by the EASDF network element, the DNS query information includes the address information of the first UE and the FQDN of the EAS; the processing module is configured to use the address information of the first UE in the DNS query information and the FQDN of the EAS FQDN, to determine the DNN, S-NSSAI and application identifier corresponding to the first UE respectively; the transceiver module is also used to send a subscription to the unified data repository UDR network element according to the DNN, S-NSSAI and application identifier respectively corresponding to the first UE The subscription information includes the DNN, S-NSSAI, and application identifier corresponding to the first UE; the first EDI sent by the UDR network element is received, and the first EDI is the DNN, S-NSSAI, and Determined by the S-NSSAI and the application identifier; the first EDI includes DNN, S-NSSAI, the application identifier and the FQDN of the EAS; the processing module is also used to determine the first DNS message processing rule according to the first EDI; the transceiver module is also It is used to send the first DNS message processing rule to the EASDF network element, so that the EASDF network element queries the Internet Protocol IP address of the EAS corresponding to the FQDN for the first UE according to the first DNS message processing rule; When a time period is greater than or equal to the preset duration, receive the updated first EDI sent by the UDR network element, the first time period includes: the time period after the transceiver module receives the first EDI, and/or, the UDR network The period of time after the element sends the first EDI.

一种可能的实现方式中,收发模块,具体用于当接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,向UDR网元发送更新请求信息;接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In a possible implementation, the transceiver module is specifically configured to send update request information to the UDR network element when the time period after receiving the first EDI sent by the UDR network element is greater than or equal to the preset duration; The update response information; the update response information includes the updated first EDI.

另一种可能的实现方式中,更新后的第一EDI是UDR网元在向收发模块发送第一EDI之后的时间段大于或等于预设时长时,由UDR网元获取并向收发模块发送的。In another possible implementation, the updated first EDI is obtained by the UDR network element and sent to the transceiver module when the time period after the UDR network element sends the first EDI to the transceiver module is greater than or equal to the preset duration. .

又一种可能的实现方式中,收发模块,具体用于当接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长,且未接收到UDR网元发送的更新后的第一EDI时,向UDR网元发送更新请求信息;接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In yet another possible implementation, the transceiver module is specifically configured to receive the first EDI sent by the UDR network element when the time period after receiving the first EDI sent by the UDR network element is greater than or equal to the preset duration, and the updated first EDI sent by the UDR network element has not been received. During EDI, send update request information to the UDR network element; receive update response information sent by the UDR network element; the update response information includes the updated first EDI.

又一种可能的实现方式中,处理模块,还用于在第一时间段大于或等于预设时长的情况下,收发模块接收UDR网元发送的更新后的第一EDI之后,清理第一EDI的缓存。In another possible implementation, the processing module is further configured to clear the first EDI after the transceiver module receives the updated first EDI sent by the UDR network element when the first time period is greater than or equal to the preset time period. cache.

第三方面,本申请提供一种信息获取方法,该方法包括:统一数据存储库UDR网元接收会话管理功能SMF网元发送的订阅信息,订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识;UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,确定第一EDI;第一EDI包括DNN、S-NSSAI、应用标识以及边缘应用服务器EAS的全称域名FQDN;UDR网元向SMF网元发送第一EDI;在第一时间段大于或等于预设时长的情况下,UDR网元获取更新后的第一EDI,第一时间段包括:SMF网元接收第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段。UDR网元向SMF网元发送更新后的第一EDI。In a third aspect, the present application provides a method for obtaining information, the method comprising: the unified data repository UDR network element receives the subscription information sent by the session management function SMF network element, and the subscription information includes the DNN and S-NSSAI respectively corresponding to the first UE and the application identifier; the UDR network element determines the first EDI according to the DNN, S-NSSAI, and application identifier corresponding to the first UE in the subscription information; the first EDI includes the DNN, S-NSSAI, application identifier, and edge application server EAS Full name domain name FQDN; the UDR network element sends the first EDI to the SMF network element; in the case that the first time period is greater than or equal to the preset time period, the UDR network element obtains the updated first EDI, and the first time period includes: SMF network The time period after the element receives the first EDI, and/or, the time period after the UDR network element sends the first EDI. The UDR network element sends the updated first EDI to the SMF network element.

一种可能的实现方式中,在第一时间段大于或等于预设时长的情况下,UDR网元获取更新后的第一EDI,第一时间段包括:SMF网元接收第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段,包括:UDR网元接收SMF网元发送的更新请求信息;更新请求信息是SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,由SMF网元发送的;UDR网元响应于更新请求信息,获取更新后的第一EDI。In a possible implementation, when the first time period is greater than or equal to the preset duration, the UDR network element obtains the updated first EDI, and the first time period includes: the time after the SMF network element receives the first EDI period, and/or, the time period after the UDR network element sends the first EDI, including: the UDR network element receives the update request information sent by the SMF network element; the update request information is that the SMF network element receives the first EDI sent by the UDR network element When the subsequent time period is greater than or equal to the preset time length, it is sent by the SMF network element; the UDR network element responds to the update request information and obtains the updated first EDI.

另一种可能的实现方式中,在第一时间段大于或等于预设时长的情况下,UDR网元获取更新后的第一EDI,第一时间段包括:SMF网元接收第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段,包括:当UDR网元向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,UDR网元向应用功能AF网元发送查询请求信息,查询请求信息用于请求查询最新的第一EDI;UDR网元接收AF网元发送的更新后的第一EDI。In another possible implementation, when the first time period is greater than or equal to the preset duration, the UDR network element obtains the updated first EDI, and the first time period includes: the period after the SMF network element receives the first EDI The time period, and/or, the time period after the UDR network element sends the first EDI, including: when the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to the preset duration, the UDR network element sends the application The function AF network element sends query request information, and the query request information is used to request to query the latest first EDI; the UDR network element receives the updated first EDI sent by the AF network element.

第四方面,本申请提供一种信息获取装置,该装置应用于统一数据存储库UDR网元,该装置包括收发模块和处理模块,收发模块和处理模块连接。收发模块,用于接收SMF网元发送的订阅信息,订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识。处理模块,用于根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,确定第一EDI;第一EDI包括DNN、S-NSSAI、应用标识以及边缘应用服务器EAS的全称域名FQDN。收发模块,还用于向SMF网元发送第一EDI。处理模块,还用于在第一时间段大于或等于预设时长的情况下,获取更新后的第一EDI,第一时间段包括:SMF网元接收第一EDI之后的时间段,和/或,收发模块发送第一EDI之后的时间段。收发模块,还用于向SMF网元发送更新后的第一EDI。In a fourth aspect, the present application provides an information acquisition device, which is applied to a UDR network element of a unified data repository, and the device includes a transceiver module and a processing module, and the transceiver module and the processing module are connected. The transceiver module is configured to receive the subscription information sent by the SMF network element, and the subscription information includes the DNN, S-NSSAI and application identifier respectively corresponding to the first UE. The processing module is configured to determine the first EDI according to the DNN, S-NSSAI and application identifier respectively corresponding to the first UE in the subscription information; the first EDI includes DNN, S-NSSAI, application identifier and the full domain name of the edge application server EAS FQDN. The transceiver module is further configured to send the first EDI to the SMF network element. The processing module is also used to obtain the updated first EDI when the first time period is greater than or equal to the preset duration, the first time period includes: the time period after the SMF network element receives the first EDI, and/or , a period of time after the transceiver module sends the first EDI. The transceiver module is further configured to send the updated first EDI to the SMF network element.

一种可能的实现方式中,收发模块,具体用于接收SMF网元发送的更新请求信息;更新请求信息是SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,由SMF网元发送的。处理模块,具体用于响应于更新请求信息,获取更新后的第一EDI。In a possible implementation, the transceiver module is specifically configured to receive the update request information sent by the SMF network element; the update request information is that the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset When the duration is set, it is sent by the SMF network element. The processing module is specifically configured to acquire the updated first EDI in response to the update request information.

另一种可能的实现方式中,收发模块,具体用于当向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,向AF网元发送查询请求信息,查询请求信息用于请求查询最新的第一EDI;接收AF网元发送的更新后的第一EDI。In another possible implementation, the transceiver module is specifically configured to send query request information to the AF network element when the time period after sending the first EDI to the SMF network element is greater than or equal to the preset duration, and the query request information is used for Request to query the latest first EDI; receive the updated first EDI sent by the AF network element.

第五方面,本申请提供一种通信装置,该通信装置包括:处理器和存储器;存储器存储有处理器可执行的指令;处理器被配置为执行指令时,使得通信装置实现上述第一方面或第三方面所述的方法。In a fifth aspect, the present application provides a communication device, which includes: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements the above first aspect or The method described in the third aspect.

第六方面,本申请提供一种计算机可读存储介质,该计算机可读存储介质包括:计算机软件指令;当计算机软件指令在计算机中运行时,使得计算机实现上述第一方面或第三方面所述的方法。In a sixth aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium comprising: computer software instructions; when the computer software instructions are run in the computer, the computer is made to implement the above-mentioned first aspect or the third aspect. Methods.

第七方面,本申请提供一种计算机程序产品,当该计算机程序产品在计算机上运行时,使得计算机执行上述第一方面所述相关方法的步骤,以实现上述第一方面或第三方面所述的方法。In the seventh aspect, the present application provides a computer program product that, when the computer program product is run on a computer, causes the computer to execute the steps of the related method described in the first aspect above, so as to realize the above-mentioned first aspect or the third aspect Methods.

第八方面,本申请提供一种芯片系统,包括:处理器和接口电路;接口电路,用于接收计算机程序或指令并传输至处理器;处理器用于执行所述计算机程序或指令,以使该芯片系统执行如上述第一方面或第三方面所述的方法。In an eighth aspect, the present application provides a chip system, including: a processor and an interface circuit; the interface circuit is used to receive computer programs or instructions and transmit them to the processor; the processor is used to execute the computer programs or instructions, so that the The chip system executes the method described in the first aspect or the third aspect above.

第九方面,本申请提供一种通信系统,该通信系统包括用于执行上述第一方面所述的方法的SMF网元、以及用于执行上述第三方面所述的方法的UDR网元。In a ninth aspect, the present application provides a communication system, which includes an SMF network element for performing the method described in the first aspect above, and a UDR network element for performing the method described in the third aspect above.

上述第二方面至第九方面的有益效果可以参考第一方面所述,不再赘述。For the beneficial effects of the above-mentioned second aspect to the ninth aspect, reference may be made to the description in the first aspect, and details are not repeated here.

附图说明Description of drawings

为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

图1为本申请实施例提供的通信系统的架构示意图;FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

图2为本申请实施例提供的信息获取方法的流程示意图;FIG. 2 is a schematic flow diagram of an information acquisition method provided by an embodiment of the present application;

图3为本申请实施例提供的信息获取方法的另一种流程示意图;FIG. 3 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图4为本申请实施例提供的信息获取方法的又一种流程示意图;FIG. 4 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图5为本申请实施例提供的信息获取方法的又一种流程示意图;FIG. 5 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图6为本申请实施例提供的信息获取方法的又一种流程示意图;FIG. 6 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图7为本申请实施例提供的信息获取方法的又一种流程示意图;FIG. 7 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图8为本申请实施例提供的信息获取方法的又一种流程示意图;FIG. 8 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application;

图9为本申请实施例提供的信息获取装置的组成示意图;FIG. 9 is a schematic diagram of the composition of the information acquisition device provided by the embodiment of the present application;

图10为本申请实施例提供的信息获取装置的另一种组成示意图;FIG. 10 is another schematic diagram of the composition of the information acquisition device provided by the embodiment of the present application;

图11为本申请实施例提供的通信装置的组成示意图。FIG. 11 is a schematic diagram of a composition of a communication device provided by an embodiment of the present application.

具体实施方式Detailed ways

下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

需要说明的是,本申请实施例中,“示例性地”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性地”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性地”或者“例如”等词旨在以具体方式呈现相关概念。It should be noted that, in the embodiments of the present application, words such as "exemplarily" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a concrete manner.

为了便于清楚描述本申请实施例的技术方案,在本申请的实施例中,采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分,本领域技术人员可以理解“第一”、“第二”等字样并不是在对数量和执行次序进行限定。In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same functions and functions. A skilled person can understand that words such as "first" and "second" do not limit the quantity and execution order.

此外,本申请的描述中所提到的术语“包括”和“具有”以及它们的任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元,而是可选的还包括其他没有列出的步骤或单元,或可选的还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。In addition, the terms "including" and "having" mentioned in the description of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other unlisted steps or units, or may optionally also include Other steps or elements inherent to the process, method, product or apparatus are included.

目前,在支持边缘计算的5G系统中,终端设备(user equipment,UE)可以通过EAS获得边缘应用服务。在获得边缘应用服务之前,UE需要先发现合适的EAS的IP地址。例如,UE可以向边缘应用服务器发现功能(edgeapplication server discovery function,EASDF)网元发送EAS的DNS查询;EASDF网元可以根据SMF网元配置的DNS消息处理规则,将UE发送的EAS的DNS查询发送给DNS服务器;EASDF网元还可以将EAS的DNS查询结果反馈给UE。Currently, in a 5G system supporting edge computing, a terminal device (user equipment, UE) can obtain edge application services through EAS. Before obtaining edge application services, the UE needs to discover the IP address of a suitable EAS. For example, the UE can send the DNS query of the EAS to the edge application server discovery function (EASDF) network element; the EASDF network element can send the DNS query of the EAS sent by the UE according to the DNS message processing rules configured by the SMF network element. To the DNS server; the EASDF network element can also feed back the DNS query result of the EAS to the UE.

其中,DNS消息处理规则可以根据EDI获得。例如,UDR网元可以与AF网元交互,获取EDI并存储;SMF网元可以从UDR网元中获取EDI并存储,根据EDI确定DNS消息处理规则。Wherein, the DNS message processing rule can be obtained according to the EDI. For example, UDR network elements can interact with AF network elements to obtain and store EDI; SMF network elements can obtain and store EDI from UDR network elements, and determine DNS message processing rules based on EDI.

但是,SMF网元中存储的EDI可能存在失效的EDI。失效的EDI会导致SMF网元无法正确分配EAS。However, there may be invalid EDI in the EDI stored in the SMF network element. Invalid EDI will cause SMF network elements to fail to correctly allocate EAS.

在此背景技术下,本申请实施例提供一种信息获取方法,利用该方法的SMF网元可以定时地接收UDR网元发送的更新后的EDI,从而提高SMF网元中存储的EDI的有效性,从而为SMF网元分配EAS提供了保障。这一过程将在下述图2至图8所示的实施例中介绍,在此不做赘述。Under this background technology, the embodiment of the present application provides an information acquisition method, and the SMF network element using this method can regularly receive the updated EDI sent by the UDR network element, thereby improving the effectiveness of the EDI stored in the SMF network element , thus guaranteeing the allocation of EAS to SMF network elements. This process will be introduced in the embodiments shown in FIG. 2 to FIG. 8 below, and will not be repeated here.

图1为本申请实施例提供的通信系统的架构示意图。如图1所示,通信系统100可以包括SMF网元101和UDR网元102。UDR网元102中可以存储有多个EDI。SMF网元101可以用于接收UDR网元102发送的第一EDI。第一EDI为UDR网元102中存储的多个EDI中的一个。SMF网元101和/或UDR网元102中可以设置有定时器,定时更新第一EDI。FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1 , a communication system 100 may include an SMF network element 101 and a UDR network element 102 . Multiple EDIs may be stored in the UDR network element 102 . The SMF network element 101 may be configured to receive the first EDI sent by the UDR network element 102 . The first EDI is one of the multiple EDIs stored in the UDR network element 102 . A timer may be set in the SMF network element 101 and/or the UDR network element 102 to regularly update the first EDI.

可选地,SMF网元101还可以用于负责隧道维护、IP至分配和管理、UP功能选择、策略实施、计费数据采集、漫游等。Optionally, the SMF network element 101 can also be responsible for tunnel maintenance, IP address allocation and management, UP function selection, policy implementation, charging data collection, roaming, etc.

可选地,UDR网元102还可以用于为5G网络中的其他网元提供数据存储和检索等服务。Optionally, the UDR network element 102 may also be used to provide services such as data storage and retrieval for other network elements in the 5G network.

可选地,通信系统100还可以包括以下至少一个网元:AF网元、NEF网元或EASDF网元(图1中未示出)。Optionally, the communication system 100 may further include at least one of the following network elements: an AF network element, a NEF network element, or an EASDF network element (not shown in FIG. 1 ).

其中,AF网元,可以用于与5G网络中的其他网元交互,并提供业务服务。NEF网元,可以用于为5G核心网网元的对外开放和提供标准接口。EASDF网元,可以用于将UE发送的EAS的DNS查询根据SMF网元的指导发送给DNS服务器,并将DNS查询结果反馈给UE。Among them, the AF network element can be used to interact with other network elements in the 5G network and provide business services. NEF network elements can be used to open and provide standard interfaces for 5G core network network elements. The EASDF network element can be used to send the DNS query of the EAS sent by the UE to the DNS server according to the guidance of the SMF network element, and feed back the DNS query result to the UE.

首先以SMF网元为本申请实施例提供的信息获取方法为执行主体进行介绍。图2为本申请实施例提供的信息获取方法的流程示意图。如图2所示,该方法可以包括S101至S107。First, the information acquisition method provided by the SMF network element in the embodiment of the present application is introduced as the execution subject. FIG. 2 is a schematic flowchart of an information acquisition method provided by an embodiment of the present application. As shown in FIG. 2, the method may include S101 to S107.

S101、SMF网元接收EASDF网元发送的DNS查询信息。S101. The SMF network element receives DNS query information sent by the EASDF network element.

其中,DNS查询信息可以包括第一UE的地址信息(如:第一UE的IP地址或者第一UE的媒体访问控制(media access control,MAC)地址等)和EAS的全称域名(fullyqualified domain name,FQDN)。Wherein, the DNS query information may include the address information of the first UE (such as: the IP address of the first UE or the media access control (media access control, MAC) address of the first UE, etc.) and the fully qualified domain name (fullyqualified domain name) of the EAS. FQDN).

S102、SMF网元根据DNS查询信息中的第一UE的地址信息和EAS的FQDN,确定第一UE分别对应的数据网络名称(data network name,DNN)、单网络切片选择辅助信息(singlenetwork slice selection assistance information,S-NSSAI)以及应用标识(application ID)。S102, the SMF network element determines the data network name (data network name, DNN) and single network slice selection auxiliary information (single network slice selection) respectively corresponding to the first UE according to the address information of the first UE in the DNS query information and the FQDN of the EAS assistance information, S-NSSAI) and application ID (application ID).

例如,第一UE的地址信息可以和协议数据单元(protocol data unit,PDU)会话具有对应关系,PDU会话的配置信息可以包括DNN和S-NSSAI,SMF网元可以根据第一UE的地址信息查询该地址信息对应的PDU会话,获取该PDU会话的配置信息中的DNN和S-NSSAI作为第一UE对应的DNN和S-NSSAI。For example, the address information of the first UE may have a corresponding relationship with the protocol data unit (protocol data unit, PDU) session, the configuration information of the PDU session may include DNN and S-NSSAI, and the SMF network element may query according to the address information of the first UE For the PDU session corresponding to the address information, obtain the DNN and S-NSSAI in the configuration information of the PDU session as the DNN and S-NSSAI corresponding to the first UE.

又例如,一个EAS可以对应多个边缘应用的应用标识,SMF网元可以根据EAS的FQDN查询该EAS对应的边缘应用的应用标识。For another example, one EAS may correspond to multiple application identifiers of edge applications, and the SMF network element may query the application identifiers of the edge applications corresponding to the EAS according to the FQDN of the EAS.

S103、SMF网元根据第一UE分别对应的DNN、S-NSSAI以及应用标识,向UDR网元发送订阅信息。S103. The SMF network element sends subscription information to the UDR network element according to the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE.

其中,订阅信息可以包括第一UE分别对应的DNN、S-NSSAI以及应用标识。Wherein, the subscription information may include the DNN, the S-NSSAI and the application identifier respectively corresponding to the first UE.

S104、SMF网元接收UDR网元发送的第一EDI。S104. The SMF network element receives the first EDI sent by the UDR network element.

其中,UDR网元可以存储多个EDI。第一EDI是UDR网元中存储的多个EDI中的一个。第一EDI是UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识所确定的。第一EDI可以包括DNN、S-NSSAI、应用标识以及EAS的FQDN。Wherein, the UDR network element can store multiple EDIs. The first EDI is one of the multiple EDIs stored in the UDR network element. The first EDI is determined by the UDR network element according to the DNN, S-NSSAI and application identifier corresponding to the first UE in the subscription information. The first EDI may include DNN, S-NSSAI, application identifier and FQDN of EAS.

可选地,第一EDI还可以包括、域名系统(domain name system,DNS)服务器信息(DNS server information)、以及EAS网际协议(internet protocol,IP)地址范围信息(EAS IP address range information)等中的任意一项或多项。Optionally, the first EDI may also include domain name system (domain name system, DNS) server information (DNS server information), and EAS Internet Protocol (internet protocol, IP) address range information (EAS IP address range information), etc. any one or more of .

可选地,S104之后,SMF网元还可以存储第一EDI。Optionally, after S104, the SMF network element may also store the first EDI.

一种可能的实现方式中,如上所述,SMF网元可以通过NEF网元接收UDR网元发送的第一EDI。In a possible implementation manner, as described above, the SMF network element may receive the first EDI sent by the UDR network element through the NEF network element.

S105、SMF网元根据第一EDI,确定第一DNS消息处理规则。S105. The SMF network element determines a first DNS message processing rule according to the first EDI.

其中,第一DNS消息处理规则可以包括第一UE分别对应的DNN、S-NSSAI、应用标识以及第一对应关系,第一对应关系是指FQDN和DNS服务器信息的对应关系。Wherein, the first DNS message processing rule may include DNN, S-NSSAI, application identifier corresponding to the first UE, and a first correspondence, where the first correspondence refers to the correspondence between FQDN and DNS server information.

可选地,第一DNS消息处理规则还可以包括第一标识符,用于指示第一DNS消息处理规则的相关信息。例如,第一标识符可以指示以下至少一项:Optionally, the first DNS message processing rule may further include a first identifier, which is used to indicate relevant information of the first DNS message processing rule. For example, the first identifier may indicate at least one of the following:

1、DNS消息处理规则优先级,用于当有多个DNS消息处理规则同时适用某个UE的DNS查询时的DNS消息处理规则选取。1. DNS message processing rule priority, which is used for DNS message processing rule selection when multiple DNS message processing rules are applicable to the DNS query of a certain UE at the same time.

2、DNS消息类型,包括DNS查询(消息)和DNS反馈(消息)。2. DNS message types, including DNS query (message) and DNS feedback (message).

3、DNS消息处理行为,包括报告行为(EASDF网元将DNS反馈报告给SMF网元)、转发行为(EASDF网元将UE发送的DNS查询转发至DNS消息处理规则指定的DNS服务器)或者控制行为(EASDF网元缓存或者删除DNS反馈)。3. DNS message processing behavior, including reporting behavior (EASDF network element reports DNS feedback to SMF network element), forwarding behavior (EASDF network element forwards DNS query sent by UE to DNS server specified by DNS message processing rules) or control behavior (EASDF network element cache or delete DNS feedback).

S106、SMF网元向EASDF网元发送第一DNS消息处理规则,以使得EASDF网元根据第一DNS消息处理规则,为第一UE查询FQDN对应的EAS的IP地址。S106. The SMF network element sends the first DNS message processing rule to the EASDF network element, so that the EASDF network element queries the IP address of the EAS corresponding to the FQDN for the first UE according to the first DNS message processing rule.

其中,第一时间段可以包括SMF网元接收第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段。需要说明的是,UDR网元和/或SMF网元中可以存储有多个EDI,第一EDI可以是该多个EDI中的一个。不同的第一EDI对应的预设时长可以相同,也可以不同,本申请实施例对此不作限制。Wherein, the first time period may include a time period after the SMF network element receives the first EDI, and/or, a time period after the UDR network element sends the first EDI. It should be noted that multiple EDIs may be stored in the UDR network element and/or the SMF network element, and the first EDI may be one of the multiple EDIs. The preset durations corresponding to different first EDIs may be the same or different, which is not limited in this embodiment of the present application.

例如,EASDF网元接收到SMF网元发送的第一DNS消息处理规则之后,EASDF可以根据第一DNS消息处理规则中的第一对应关系,确定第一UE发送的DNS查询(消息)中的FQDN对应的DNS服务器地址信息,并将第一UE的DNS查询(消息)发送给FQDN对应的DNS服务器地址信息所对应的DNS服务器。该DNS服务器可以存储有FQDN和EAS的IP地址之间的映射关系。第一UE可以根据该DNS服务器中存储的FQDN和EAS的IP地址之间的映射关系,确定合适的EAS的IP地址,获得边缘服务应用。For example, after the EASDF network element receives the first DNS message processing rule sent by the SMF network element, the EASDF can determine the FQDN in the DNS query (message) sent by the first UE according to the first correspondence in the first DNS message processing rule corresponding DNS server address information, and send the DNS query (message) of the first UE to the DNS server corresponding to the DNS server address information corresponding to the FQDN. The DNS server may store the mapping relationship between the FQDN and the IP address of the EAS. The first UE may determine a suitable IP address of the EAS according to the mapping relationship between the FQDN stored in the DNS server and the IP address of the EAS, and obtain the edge service application.

S107、在第一时间段大于或等于预设时长的情况下,SMF网元接收UDR网元发送的更新后的第一EDI。S107. In the case that the first time period is greater than or equal to the preset time length, the SMF network element receives the updated first EDI sent by the UDR network element.

一种可能的实现方式中,预设时长可以预设在SMF网元中。例如,SMF网元在接收到UDR网元发送的第一EDI之后,可以为第一EDI设置定时器。这种情况下,图3为本申请实施例提供的信息获取方法的另一种流程示意图。如图3所示,上述S107可以具体包括S201和S202。In a possible implementation manner, the preset duration may be preset in the SMF network element. For example, after receiving the first EDI sent by the UDR network element, the SMF network element may set a timer for the first EDI. In this case, FIG. 3 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application. As shown in FIG. 3 , the above S107 may specifically include S201 and S202.

S201、当SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,SMF网元向UDR网元发送更新请求信息。S201. When the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to a preset time length, the SMF network element sends update request information to the UDR network element.

其中,预设时长可以由管理人员预设。例如,预设时长可以是1天、7天、或者15天等。本申请实施例对预设时长的具体时长不作限制。更新请求信息可以用于请求更新第一EDI。示例性地,更新请求信息可以包括第一EDI中的DNN、S-NSSAI以及应用标识。Wherein, the preset duration can be preset by the manager. For example, the preset duration may be 1 day, 7 days, or 15 days. The embodiment of the present application does not limit the specific duration of the preset duration. The update request message may be used to request an update of the first EDI. Exemplarily, the update request information may include the DNN, S-NSSAI and application identifier in the first EDI.

S202、SMF网元接收UDR网元发送的更新响应信息。S202. The SMF network element receives the update response information sent by the UDR network element.

其中,更新响应信息可以包括更新后的第一EDI。以第一EDI包括DNN、S-NSSAI、应用标识、FQDN、DNS服务器信息以及EAS网际协议地址范围信息为例,更新后的第一EDI可以包括以下至少一项:更新后的FQDN、更新后的DNS服务器信息以及更新后的EAS网际协议地址范围信息。可选地,更新后的第一EDI还包括:DNN、S-NSSAI以及应用标识。Wherein, the update response information may include the updated first EDI. Taking the first EDI including DNN, S-NSSAI, application identifier, FQDN, DNS server information and EAS Internet Protocol address range information as an example, the updated first EDI may include at least one of the following: updated FQDN, updated DNS server information and updated EAS IP address range information. Optionally, the updated first EDI also includes: DNN, S-NSSAI and application identifier.

另一种可能的实现方式中,预设时长也可以预设在UDR网元中。例如,UDR网元中可以存储第一EDI,UDR网元可以为第一EDI设置定时器。当定时器达到预设定时时,UDR网元可以获取更新后的第一EDI并发送给SMF网元。这种情况下,SMF网元接收到的更新后的第一EDI,是UDR网元在向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,由UDR网元获取并向SMF网元发送的。In another possible implementation manner, the preset duration may also be preset in the UDR network element. For example, the UDR network element may store the first EDI, and the UDR network element may set a timer for the first EDI. When the timer reaches the preset timing, the UDR network element can obtain the updated first EDI and send it to the SMF network element. In this case, the updated first EDI received by the SMF network element is obtained by the UDR network element when the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to the preset duration. Sent by the SMF network element.

又一种可能的实现方式中,预设时长可以同时预设在SMF网元和UDR网元中。例如,UDR网元被配置为按照预设时长向SMF网元更新第一EDI。SMF网元每隔预设时长判断是否收到UDR网元发送的更新后的第一EDI。在这种情况下,图4为本申请实施例提供的信息获取方法的又一种流程示意图。如图4所示,上述S107可以具体包括S301至S302。In yet another possible implementation manner, the preset duration may be preset in both the SMF network element and the UDR network element. For example, the UDR network element is configured to update the first EDI to the SMF network element according to a preset duration. The SMF network element judges whether to receive the updated first EDI sent by the UDR network element every preset period of time. In this case, FIG. 4 is another schematic flow chart of the information acquisition method provided by the embodiment of the present application. As shown in FIG. 4 , the above S107 may specifically include S301 to S302.

S301、当SMF网元接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长,且SMF网元未接收到UDR网元发送的更新后的第一EDI时,SMF网元向UDR网元发送更新请求信息。S301. When the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset duration, and the SMF network element has not received the updated first EDI sent by the UDR network element, the SMF network element sends The UDR network element sends update request information.

S301中的更新请求信息可以参照上述S201所述,此处不再赘述。For the update request information in S301, reference may be made to the description in S201 above, which will not be repeated here.

S302、SMF网元接收UDR网元发送的更新响应信息。S302. The SMF network element receives the update response information sent by the UDR network element.

S302可以参照上述S202所述,此处不再赘述。For S302, reference may be made to the description of S202 above, and details will not be repeated here.

可选地,S302、S201或者S107之后,SMF网元还可以清理第一EDI的缓存。Optionally, after S302, S201 or S107, the SMF network element may also clear the cache of the first EDI.

可选地,S107之后,SMF网元还可以根据更新后的第一EDI,确定更新后的DNS消息处理规则并发送给ESADF网元。更新后的DNS消息处理规则可以参照上述DNS消息处理规则所述,此处不再赘述。Optionally, after S107, the SMF network element may also determine an updated DNS message processing rule according to the updated first EDI and send it to the ESADF network element. For the updated DNS message processing rules, reference may be made to the foregoing DNS message processing rules, which will not be repeated here.

本申请实施例提供的信息获取方法中,SMF网元在接收到UDR网元发送的第一EDI的时长达到预设的第一时长之后,还可以接收UDR网元发送的更新之后的第一EDI,与3GPPSA2 R17中的边缘计算项目相比,利用本申请实施例提供的信息获取方法的SMF网元中的第一EDI可以在没有接收到第一UE发送的用于查询边缘服务应用的DNS查询(消息)时自动定时更新,整体上第一EDI失效的概率较低,从而提高了SMF网元中存储的EDI的有效性,从而为SMF网元分配EAS提供了保障。In the information acquisition method provided by the embodiment of the present application, the SMF network element can also receive the updated first EDI sent by the UDR network element after the time length of the first EDI sent by the UDR network element reaches the preset first time length. , compared with the edge computing project in 3GPP S A2 R17, the first EDI in the SMF network element using the information acquisition method provided by the embodiment of the present application may not receive the DNS query sent by the first UE for querying the edge service application (message) is automatically updated at regular intervals, and the probability of failure of the first EDI on the whole is low, thereby improving the effectiveness of the EDI stored in the SMF network element, thus providing a guarantee for the allocation of EAS by the SMF network element.

以上以SMF网元为信息获取方法的执行主体为例进行了介绍。可选地,该方法的执行主体还可以是UDR网元。图5为本申请实施例提供的信息获取方法的又一种流程示意图。如图5所示,该方法可以包括S401至S405。The above is an introduction by taking the SMF network element as an execution subject of the information acquisition method as an example. Optionally, the subject of execution of the method may also be a UDR network element. FIG. 5 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application. As shown in Fig. 5, the method may include S401 to S405.

S401、UDR网元接收SMF网元发送的订阅信息。S401. The UDR network element receives subscription information sent by the SMF network element.

S401可以参照上述S103所述,此处不再赘述。For S401, reference may be made to the description in S103 above, and details will not be repeated here.

S402、UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,确定第一EDI。S402. The UDR network element determines the first EDI according to the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE in the subscription information.

例如,UDR网元可以存储多个EDI,UDR网元可以以订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识为索引,查找确定包括第一UE分别对应的DNN、S-NSSAI以及应用标识的第一EDI。For example, the UDR network element can store multiple EDIs, and the UDR network element can use the DNN, S-NSSAI, and application identifier corresponding to the first UE in the subscription information as an index to search and determine the DNN, S-NSSAI and application identifier corresponding to the first UE respectively. NSSAI and the first EDI of the application identification.

S403、UDR网元向SMF网元发送第一EDI。S403. The UDR network element sends the first EDI to the SMF network element.

S404、在第一时间段大于或等于预设时长的情况下,UDR网元获取更新后的第一EDI。S404. In the case that the first time period is greater than or equal to the preset time period, the UDR network element acquires the updated first EDI.

其中,第一时间段可以参照上述S107所述,此处不再赘述。Wherein, the first time period may refer to the above S107, which will not be repeated here.

一种可能的实现方式中,预设时长可以预设在SMF网元中。在这种情况下,图6为本申请实施例提供的信息获取方法的又一种流程示意图。如图6所示,上述S404可以具体包括S501和S502。In a possible implementation manner, the preset duration may be preset in the SMF network element. In this case, FIG. 6 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application. As shown in FIG. 6, the above S404 may specifically include S501 and S502.

S501、UDR网元接收SMF网元发送的更新请求信息。S501. The UDR network element receives update request information sent by the SMF network element.

其中,更新请求信息是SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,由SMF网元所发送的。更新请求信息可以包括第一EDI中的DNN、S-NSSAI以及应用ID。Wherein, the update request information is sent by the SMF network element when the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset duration. The update request information may include DNN, S-NSSAI and application ID in the first EDI.

S502、UDR网元响应于更新请求信息,获取更新后的第一EDI。S502. The UDR network element acquires the updated first EDI in response to the update request information.

例如,UDR网元可以响应于更新请求信息,向AF网元发送查询请求信息,查询请求信息可以用于请求查询最新的第一EDI。示例性地,查询请求信息包括第一EDI中的DNN、S-NSSAI以及应用ID。AF网元可以根据第一EDI中的DNN、S-NSSAI以及应用ID,采集更新后的第一EDI并发送给UDR网元。也即,上述S502可以具体包括:UDR网元响应于更新请求信息,与AF网元交互,获取更新后的第一EDI。For example, the UDR network element may send query request information to the AF network element in response to the update request information, and the query request information may be used to request to query the latest first EDI. Exemplarily, the query request information includes DNN, S-NSSAI and application ID in the first EDI. The AF network element can collect the updated first EDI according to the DNN, S-NSSAI and application ID in the first EDI and send it to the UDR network element. That is, the above S502 may specifically include: the UDR network element responds to the update request information, interacts with the AF network element, and acquires the updated first EDI.

又例如,UDR网元可以接收AF网元发送的更新后的第一EDI并储存;该更新后的第一EDI是AF网元确定第一EDI失效之后,由AF网元采集并发送给UDR网元的。For another example, the UDR network element can receive and store the updated first EDI sent by the AF network element; the updated first EDI is collected by the AF network element and sent to the UDR network after the AF network element determines that the first EDI is invalid. yuan.

另一种可能的实现方式中,预设时长可以预设在UDR网元中。在这种情况下,图7为本申请实施例提供的信息获取方法的又一种流程示意图,如图7所示,上述S404可以具体包括S601和S602。In another possible implementation manner, the preset duration may be preset in the UDR network element. In this case, FIG. 7 is another schematic flowchart of the information acquisition method provided by the embodiment of the present application. As shown in FIG. 7 , the above S404 may specifically include S601 and S602.

S601、当UDR网元向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,UDR网元向AF网元发送查询请求信息。S601. When the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to a preset time length, the UDR network element sends query request information to the AF network element.

S602、UDR网元接收AF网元发送的更新后的第一EDI。S602. The UDR network element receives the updated first EDI sent by the AF network element.

S601和S602可以参照S502中UDR网元和AF网元交互获取更新后的第一EDI所述,此处不再赘述。S601 and S602 may refer to the description in S502 that the UDR network element and the AF network element interact to obtain the updated first EDI, and details are not repeated here.

S405、UDR网元向SMF网元发送更新后的第一EDI。S405. The UDR network element sends the updated first EDI to the SMF network element.

以上以单独的SMF网元或UDR网元为信息获取方法的执行主体为例进行了介绍。下面以多个网元交互的方式对本申请实施例提供的信息获取方法进行介绍。图8为本申请实施例提供的信息获取方法的又一种流程示意图。如图8所示,该方法可以包括S701至S710。The above is an introduction by taking a single SMF network element or a UDR network element as an execution subject of the information acquisition method as an example. The information acquisition method provided by the embodiment of the present application will be introduced below in a manner of interacting with multiple network elements. FIG. 8 is another schematic flow chart of the information acquisition method provided by the embodiment of the present application. As shown in FIG. 8, the method may include S701 to S710.

S701、EASDF网元向SMF网元发送DNS查询信息。相应的,SMF网元接收来自EASDF网元的DNS查询信息。S701. The EASDF network element sends DNS query information to the SMF network element. Correspondingly, the SMF network element receives the DNS query information from the EASDF network element.

其中,DNS查询信息可以包括第一UE的地址信息和EAS的FQDN。例如,第一UE的IP地址或者第一UE的MAC地址等。第一UE可以是EASDF网元服务的多个UE中的任意一个UE。Wherein, the DNS query information may include the address information of the first UE and the FQDN of the EAS. For example, the IP address of the first UE or the MAC address of the first UE. The first UE may be any one of multiple UEs served by the EASDF network element.

S702、SMF网元根据第一UE的地址信息和EAS的FQDN,确定第一UE分别对应的DNN、S-NSSAI以及应用标识。S702. The SMF network element determines the DNN, the S-NSSAI and the application identifier respectively corresponding to the first UE according to the address information of the first UE and the FQDN of the EAS.

S702可以参照上述S101中第一EDI和第一UE具有对应关系处所述,此处不再赘述。S702 may refer to the description of the corresponding relationship between the first EDI and the first UE in S101 above, and will not be repeated here.

S703、SMF网元根据第一UE分别对应的DNN、S-NSSAI以及应用标识,通过NEF网元向UDR网元发送订阅信息。相应的,UDR网元通过NEF网元接收来自SMF网元的订阅信息。S703. The SMF network element sends subscription information to the UDR network element through the NEF network element according to the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE. Correspondingly, the UDR network element receives the subscription information from the SMF network element through the NEF network element.

其中,订阅信息可以包括第一UE分别对应的DNN、S-NSSAI以及应用标识。Wherein, the subscription information may include the DNN, the S-NSSAI and the application identifier respectively corresponding to the first UE.

可选地,在根据第一UE的地址信息,确定第一UE分别对应的DNN、S-NSSAI以及应用标识之后,SMF网元还可以根据第一UE分别对应的DNN、S-NSSAI以及应用标识,判断SMF网元中是否存储有第一UE对应的第一EDI。上述S702可以具体包括:当SMF网元中没有存储第一UE对应的第一EDI时,第一SMF根据第一UE分别对应的DNN、S-NSSAI以及应用标识,通过NEF网元向UDR网元发送订阅信息。Optionally, after determining the DNN, S-NSSAI and application identifier corresponding to the first UE according to the address information of the first UE, the SMF network element may also , judging whether the first EDI corresponding to the first UE is stored in the SMF network element. The above S702 may specifically include: when the first EDI corresponding to the first UE is not stored in the SMF network element, the first SMF sends the UDR network element to the UDR network element through the NEF network element according to the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE. Send subscription information.

S704、UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,确定第一EDI。S704. The UDR network element determines the first EDI according to the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE in the subscription information.

S704可以参照上述S404所述,此处不再赘述。For S704, reference may be made to the description of S404 above, and details will not be repeated here.

S705、UDR网元通过NEF网元向SMF网元发送第一EDI。相应的,SMF网元通过NEF网元接收来自UDR网元的第一EDI。S705. The UDR network element sends the first EDI to the SMF network element through the NEF network element. Correspondingly, the SMF network element receives the first EDI from the UDR network element through the NEF network element.

S706、SMF网元根据第一EDI,确定第一DNS消息处理规则。S706. The SMF network element determines a first DNS message processing rule according to the first EDI.

S706可以参照上述S105处所述,此处不再赘述。For S706, reference may be made to the description at S105 above, and details will not be repeated here.

S707、SMF网元向EASDF网元发送第一DNS消息处理规则。S707. The SMF network element sends the first DNS message processing rule to the EASDF network element.

相对应地,EASDF网元可以接收SMF网元发送的第一DNS消息处理规则。Correspondingly, the EASDF network element may receive the first DNS message processing rule sent by the SMF network element.

S707可以参照上述S106所述,此处不再赘述。For S707, reference may be made to the description in S106 above, and details will not be repeated here.

S708、当SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,SMF网元通过NEF网元向UDR网元发送更新请求信息。S708. When the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset time length, the SMF network element sends update request information to the UDR network element through the NEF network element.

例如,SMF网元可以在通过NEF网元接收到UDR网元发送的第一EDI时,为第一EDI设置定时器。当SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,第一EDI的定时器触发SMF网元向UDR网元发送更新请求信息。For example, the SMF network element may set a timer for the first EDI when receiving the first EDI sent by the UDR network element through the NEF network element. When the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset duration, the timer of the first EDI triggers the SMF network element to send update request information to the UDR network element.

S709、UDR网元和AF网元交互,获取更新后的第一EDI。S709, the UDR network element interacts with the AF network element to acquire the updated first EDI.

S709可以参照上述S502所述,此处不再赘述。For S709, reference may be made to the description in S502 above, and details will not be repeated here.

S710、UDR网元通过NEF网元向SMF网元发送更新后的第一EDI。S710. The UDR network element sends the updated first EDI to the SMF network element through the NEF network element.

相对应地,SMF网元可以通过NEF网元接收UDR网元发送的更新后的第一EDI。Correspondingly, the SMF network element may receive the updated first EDI sent by the UDR network element through the NEF network element.

例如,UDR网元可以通过NEF网元向SMF网元发送更新响应信息。更新响应信息可以包括更新后的第一EDI。For example, the UDR network element may send update response information to the SMF network element through the NEF network element. The update response message may include the updated first EDI.

可选地,SMF网元通过NEF网元接收到UDR网元发送的更新响应信息之后,还可以判断更新响应信息中是否包括更新后的第一EDI。若包括,SMF网元可以删除第一EDI的缓存。Optionally, after the SMF network element receives the update response information sent by the UDR network element through the NEF network element, it may also determine whether the update response information includes the updated first EDI. If included, the SMF network element may delete the cache of the first EDI.

可选地,S710之后,SMF网元还可以为该更新后的第一EDI重新设置定时器。Optionally, after S710, the SMF network element may reset the timer for the updated first EDI.

可选地,S710之后,SMF网元还可以根据更新后的第一EDI,确定更新后的第一DNS消息处理规则并将更新后的第一DNS消息处理规则发送给EASDF网元。Optionally, after S710, the SMF network element may also determine an updated first DNS message processing rule according to the updated first EDI and send the updated first DNS message processing rule to the EASDF network element.

上述主要从方法的角度对本申请实施例提供的方案进行了介绍。为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术目标应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术目标可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of methods. In order to realize the above functions, it includes corresponding hardware structures and/or software modules for performing various functions. It should be easy for those skilled in the art to realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Expert technical targets may use different methods to implement the described functions for each particular application, but such implementation should not be regarded as exceeding the scope of the present application.

在示例性的实施例中,本申请实施例提供一种信息获取装置,该装置可以应用于上述SMF网元。图9为本申请实施例提供的信息获取装置的组成示意图。如图9所示,该装置可以包括:收发模块901和处理模块902。收发模块901和处理模块902连接。收发模块901,用于接收EASDF网元发送的DNS查询信息,DNS查询信息包括第一UE的地址信息和EAS的FQDN;In an exemplary embodiment, an embodiment of the present application provides an information acquisition device, which can be applied to the above-mentioned SMF network element. FIG. 9 is a schematic diagram of the composition of an information acquisition device provided by an embodiment of the present application. As shown in FIG. 9 , the device may include: a transceiver module 901 and a processing module 902 . The transceiver module 901 is connected to the processing module 902 . The transceiver module 901 is configured to receive DNS query information sent by the EASDF network element, where the DNS query information includes the address information of the first UE and the FQDN of the EAS;

处理模块902,用于根据DNS查询信息中的第一UE的地址信息和EAS的FQDN,确定第一UE分别对应的DNN、S-NSSAI以及应用标识;The processing module 902 is configured to determine the DNN, S-NSSAI, and application identifier respectively corresponding to the first UE according to the address information of the first UE in the DNS query information and the FQDN of the EAS;

收发模块901,还用于根据第一UE分别对应的DNN、S-NSSAI以及应用标识,向统一数据存储库UDR网元发送订阅信息,订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识;接收UDR网元发送的第一EDI,第一EDI是UDR网元根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识所确定的;第一EDI包括DNN、S-NSSAI、应用标识以及EAS的FQDN;The transceiver module 901 is further configured to send subscription information to the UDR network element in the unified data repository according to the DNN, S-NSSAI and application identifiers respectively corresponding to the first UE, where the subscription information includes the DNN, S-NSSAI and Application identification: receive the first EDI sent by the UDR network element, the first EDI is determined by the UDR network element according to the DNN, S-NSSAI and application identification corresponding to the first UE in the subscription information; the first EDI includes DNN, S-NSSAI -NSSAI, Application ID and FQDN of EAS;

处理模块902,还用于根据第一EDI,确定第一DNS消息处理规则;The processing module 902 is further configured to determine a first DNS message processing rule according to the first EDI;

收发模块901,还用于向EASDF网元发送第一DNS消息处理规则,以使得EASDF网元根据第一DNS消息处理规则,为第一UE查询FQDN对应的EAS的网际协议IP地址;The transceiver module 901 is further configured to send a first DNS message processing rule to the EASDF network element, so that the EASDF network element queries the Internet Protocol IP address of the EAS corresponding to the FQDN for the first UE according to the first DNS message processing rule;

收发模块901,还用于在第一时间段大于或等于预设时长的情况下,接收UDR网元发送的更新后的第一EDI,第一时间段包括:收发模块901接收到第一EDI之后的时间段,和/或,UDR网元发送第一EDI之后的时间段。The transceiver module 901 is also configured to receive the updated first EDI sent by the UDR network element when the first time period is greater than or equal to the preset duration, the first time period includes: after the transceiver module 901 receives the first EDI A time period, and/or, a time period after the UDR network element sends the first EDI.

一些可能的实施例中,收发模块901,具体用于当接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,向UDR网元发送更新请求信息;接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In some possible embodiments, the transceiver module 901 is specifically configured to send update request information to the UDR network element when the time period after receiving the first EDI sent by the UDR network element is greater than or equal to the preset duration; The update response information; the update response information includes the updated first EDI.

另一些可能的实施例中,更新后的第一EDI是UDR网元在向收发模块901发送第一EDI之后的时间段大于或等于预设时长时,由UDR网元获取并向收发模块901发送的。In some other possible embodiments, the updated first EDI is obtained by the UDR network element and sent to the transceiver module 901 when the time period after the UDR network element sends the first EDI to the transceiver module 901 is greater than or equal to the preset duration of.

又一些可能的实施例中,收发模块901,具体用于当接收UDR网元发送的第一EDI之后的时间段大于或等于预设时长,且未接收到UDR网元发送的更新后的第一EDI时,向UDR网元发送更新请求信息;接收UDR网元发送的更新响应信息;更新响应信息包括更新后的第一EDI。In some other possible embodiments, the transceiver module 901 is specifically configured to receive the first EDI sent by the UDR network element when the time period after receiving the first EDI sent by the UDR network element is greater than or equal to the preset duration, and the updated first EDI sent by the UDR network element has not been received. During EDI, send update request information to the UDR network element; receive update response information sent by the UDR network element; the update response information includes the updated first EDI.

又一些可能的实施例中,处理模块902,还用于在第一时间段大于或等于预设时长的情况下,收发模块901接收UDR网元发送的更新后的第一EDI之后,清理第一EDI的缓存。In some other possible embodiments, the processing module 902 is further configured to clean up the first EDI caching.

在示例性的实施例中,本申请实施例提供另一种信息获取装置,该装置可以应用于上述UDR网元。图10为本申请实施例提供的信息获取装置的另一种组成示意图。如图10所示,该装置可以包括收发模块1001和处理模块1002,收发模块1001和处理模块1002连接。收发模块1001,用于接收会话管理功能SMF网元发送的订阅信息,订阅信息包括第一UE分别对应的DNN、S-NSSAI以及应用标识。处理模块1002,用于根据订阅信息中的第一UE分别对应的DNN、S-NSSAI以及应用标识,确定第一EDI;第一EDI包括DNN、S-NSSAI、应用标识以及边缘应用服务器EAS的全称域名FQDN。收发模块1001,还用于向SMF网元发送第一EDI。处理模块1002,还用于在第一时间段大于或等于预设时长的情况下,获取更新后的第一EDI,第一时间段包括:SMF网元接收第一EDI之后的时间段,和/或,收发模块1001发送第一EDI之后的时间段;向SMF网元发送更新后的第一EDI。In an exemplary embodiment, the embodiment of the present application provides another apparatus for obtaining information, and the apparatus may be applied to the above-mentioned UDR network element. FIG. 10 is another schematic diagram of the composition of the information acquisition device provided by the embodiment of the present application. As shown in FIG. 10 , the device may include a transceiver module 1001 and a processing module 1002 , and the transceiver module 1001 and the processing module 1002 are connected. The transceiver module 1001 is configured to receive subscription information sent by a session management function SMF network element, where the subscription information includes DNN, S-NSSAI and application identifier corresponding to the first UE respectively. The processing module 1002 is configured to determine the first EDI according to the DNN, S-NSSAI and application identifier respectively corresponding to the first UE in the subscription information; the first EDI includes DNN, S-NSSAI, application identifier and the full name of the edge application server EAS Domain name FQDN. The transceiver module 1001 is further configured to send the first EDI to the SMF network element. The processing module 1002 is further configured to obtain the updated first EDI when the first time period is greater than or equal to the preset time period, the first time period includes: the time period after the SMF network element receives the first EDI, and/or Or, the time period after the sending and receiving module 1001 sends the first EDI; send the updated first EDI to the SMF network element.

一些可能的实施例中,收发模块1001,具体用于接收SMF网元发送的更新请求信息;更新请求信息是SMF网元接收到UDR网元发送的第一EDI之后的时间段大于或等于预设时长时,由SMF网元发送的。处理模块1002,具体用于响应于更新请求信息,获取更新后的第一EDI。In some possible embodiments, the transceiver module 1001 is specifically configured to receive the update request information sent by the SMF network element; the update request information is that the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to the preset When the duration is set, it is sent by the SMF network element. The processing module 1002 is specifically configured to acquire the updated first EDI in response to the update request information.

另一些可能的实施例中,收发模块1001,具体用于当向SMF网元发送第一EDI之后的时间段大于或等于预设时长时,向AF网元发送查询请求信息,查询请求信息用于请求查询最新的第一EDI;接收AF网元发送的更新后的第一EDI。In some other possible embodiments, the transceiver module 1001 is specifically configured to send query request information to the AF network element when the time period after sending the first EDI to the SMF network element is greater than or equal to the preset duration, and the query request information is used for Request to query the latest first EDI; receive the updated first EDI sent by the AF network element.

本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

需要说明的是,图9和图10中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。例如,还可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。It should be noted that the division of modules in FIG. 9 and FIG. 10 is schematic, and is only a logical function division, and there may be another division method in actual implementation. For example, two or more functions can also be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules.

在示例性的实施例中,本申请实施例提供一种通信装置,该通信装置可以应用于上述SMF网元或者UDR网元。图11为本申请实施例提供的通信装置的组成示意图。如图11所示,该通信装置可以包括处理器10、存储器20、通信线路30以及通信接口40。处理器10、存储器20以及通信接口40之间可以通过通信线路30连接。In an exemplary embodiment, this embodiment of the present application provides a communication device, and the communication device may be applied to the above-mentioned SMF network element or UDR network element. FIG. 11 is a schematic diagram of a composition of a communication device provided by an embodiment of the present application. As shown in FIG. 11 , the communication device may include a processor 10 , a memory 20 , a communication line 30 and a communication interface 40 . The processor 10 , the memory 20 and the communication interface 40 may be connected through a communication line 30 .

其中,处理器10可以是中央处理器(central processing unit,CPU)、通用处理器网络处理器(network processor,NP)、数字信号处理器(digital signal processing,DSP)、微处理器、微控制器、可编程逻辑器件(programmable logic device,PLD)或它们的任意组合。处理器201还可以是其它任意具有处理功能的装置,例如电路、器件或软件模块,本申请实施例对此不作限制。在一种示例中,处理器10可以包括一个或多个CPU,例如图11中的CPU0和CPU1。作为一种可选的实现方式,通信装置包括多个处理器,例如,如图11所示,除处理器10之外,还可以包括处理器50。Wherein, the processor 10 may be a central processing unit (central processing unit, CPU), a general-purpose processor, a network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller , programmable logic device (programmable logic device, PLD) or any combination thereof. The processor 201 may also be any other device having a processing function, such as a circuit, a device, or a software module, which is not limited in this embodiment of the present application. In an example, the processor 10 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 11 . As an optional implementation manner, the communication device includes multiple processors. For example, as shown in FIG. 11 , in addition to the processor 10, a processor 50 may also be included.

存储器20用于存储程序指令或应用进程所要访问的数据,处理器10可以通过执行存储器20中的程序指令,以实现本申请实施例提供的信息获取方法。例如,存储器20中存储的指令可以是计算机程序。存储器20可以是只读存储器(read-only memory,ROM)或可存储静态信息和/或指令的其他类型的静态存储设备,也可以是存取存储器(random accessmemory,RAM)或者可存储信息和/或指令的其他类型的动态存储设备,还可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备等。本申请实施例对存储器20的具体形态不作限制。存储器20可以独立于处理器10存在,也可以和处理器10集成在一起。本申请实施例对此也不作限制。The memory 20 is used to store program instructions or data to be accessed by the application process, and the processor 10 can execute the program instructions in the memory 20 to implement the information acquisition method provided by the embodiment of the present application. For example, the instructions stored in memory 20 may be computer programs. The memory 20 can be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and/or instructions, and can also be an access memory (random access memory, RAM) or can store information and/or instructions. Or other types of dynamic storage devices for instructions, it can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other Optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disc storage media or other magnetic storage devices, etc. The embodiment of the present application does not limit the specific form of the memory 20 . The memory 20 may exist independently of the processor 10 or may be integrated with the processor 10 . The embodiments of the present application do not limit this either.

通信线路30,用于在通信装置所包括的各部件之间传送信息。The communication line 30 is used to transmit information between various components included in the communication device.

通信接口40,用于与其他设备或其它通信网络进行通信。该其它通信网络可以为以太网,无线接入网(radio access network,RAN),无线局域网(wireless local areanetworks,WLAN)等。通信接口40可以是模块、电路、收发器或者任何能够实现通信的装置。The communication interface 40 is used for communicating with other devices or other communication networks. The other communication network may be an Ethernet, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), and the like. The communication interface 40 may be a module, a circuit, a transceiver or any device capable of realizing communication.

需要说明的是,图11中示出的组成并不构成对本申请实施例提供的通信装置的限定,除图11所示部件之外,该通信装置可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。It should be noted that the composition shown in FIG. 11 does not constitute a limitation to the communication device provided in the embodiment of the present application. Except for the components shown in FIG. 11, the communication device may include more or less components than shown in the figure , or combinations of certain components, or different arrangements of components.

在一个简单的实施例中,图11中的处理器10可以通过调用存储器20中存储的计算机执行指令,使得通信装置执行上述方法实施例中所述的方法。In a simple embodiment, the processor 10 in FIG. 11 can invoke the computer-executed instructions stored in the memory 20, so that the communication device executes the methods described in the foregoing method embodiments.

示例性地,图9中的收发模块901的功能/实现过程可以通过图11中的处理器10调用存储器20中存储的计算机执行指令来实现。或者,图9中的收发模块901的功能/实现过程可以通过图11中的通信接口40来实现。Exemplarily, the function/implementation process of the transceiver module 901 in FIG. 9 can be implemented by the processor 10 in FIG. 11 invoking computer-executed instructions stored in the memory 20 . Alternatively, the function/implementation process of the transceiver module 901 in FIG. 9 may be realized through the communication interface 40 in FIG. 11 .

示例性地,图10中的收发模块1001和处理模块1002的功能/实现过程可以通过图11中的处理器10调用存储器20中存储的计算机执行指令来实现。或者,图10中的处理模块1002的功能/实现过程可以通过图11中的处理器10调用存储器20中存储的计算机执行指令来实现,图10中的收发模块1001的功能/实现过程可以通过图11中的通信接口40来实现。Exemplarily, the function/implementation process of the transceiver module 1001 and the processing module 1002 in FIG. 10 can be realized by calling the computer-executed instructions stored in the memory 20 by the processor 10 in FIG. 11 . Or, the function/implementation process of the processing module 1002 in FIG. 10 can be realized by calling the computer execution instructions stored in the memory 20 by the processor 10 in FIG. 11 , and the function/implementation process of the transceiver module 1001 in FIG. 11 in the communication interface 40 to achieve.

在示例性的实施例中,本申请实施例还提供了一种计算机程序产品,当该计算机程序产品在通信装置上运行时,使得通信装置执行上述相关方法步骤,以实现前述方法实施例中的方法。In an exemplary embodiment, the embodiment of the present application further provides a computer program product. When the computer program product runs on the communication device, the communication device executes the steps of the above-mentioned related methods, so as to realize the above-mentioned steps in the method embodiments. method.

在示例性的实施例中,本申请实施例还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;当所述计算机程序指令被通信装置执行时,使得通信装置实现如前述实施例中所述的方法。计算机可读存储介质可以是非临时性计算机可读存储介质,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, the embodiment of the present application also provides a computer-readable storage medium, on which computer program instructions are stored; when the computer program instructions are executed by the communication device, the communication device realizes the above-mentioned embodiment. method described in . The computer-readable storage medium may be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device wait.

在示例性的实施例中,本申请实施例还提供一种芯片系统,包括:处理器和接口电路;接口电路,用于接收计算机程序或指令并传输至处理器;处理器用于执行所述计算机程序或指令,以使该芯片系统实现如前述实施例中所述的方法。In an exemplary embodiment, the embodiment of the present application also provides a chip system, including: a processor and an interface circuit; the interface circuit is used to receive computer programs or instructions and transmit them to the processor; the processor is used to execute the computer programs or instructions, so that the system-on-a-chip implements the methods described in the foregoing embodiments.

在示例性的实施例中,本申请实施例还提供一种通信系统,该通信系统包括用于执行本申请实施例提供的方法的SMF网元、以及用于执行本申请实施例提供的方法的UDR网元。In an exemplary embodiment, the embodiment of the present application further provides a communication system, the communication system includes an SMF network element for performing the method provided in the embodiment of the present application, and a network element for performing the method provided in the embodiment of the present application UDR network element.

尽管结合具体特征及其实施例对本申请进行了描述,显而易见的,在不脱离本申请的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明,且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。Although the application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made thereto without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely illustrative of the application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of this application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应该以权利要求的保护范围为准。The above is only a specific implementation of the application, but the protection scope of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application should be covered within the protection scope of the application . Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (12)

1. An information acquisition method, the method comprising:
the method comprises the steps that a session management function SMF network element receives domain name system DNS query information sent by an edge application server discovery function EASDF network element; the DNS query information includes address information of the first user equipment UE and a fully-called domain name FQDN of the edge application server EAS;
the SMF network element determines DNN, S-NSSAI and application identifier respectively corresponding to the first UE according to the address information of the first UE and the FQDN of the EAS in the DNS query information;
the SMF network element sends subscription information to a unified data storage library UDR network element according to DNN, S-NSSAI and application identifiers respectively corresponding to the first UE; the subscription information comprises DNN, S-NSSAI and application identifiers corresponding to the first UE respectively;
the SMF network element receives a first EDI sent by the UDR network element, wherein the first EDI is determined by the UDR network element according to DNN, S-NSSAI and application identifiers respectively corresponding to the first UE in the subscription information; the first EDI comprises DNN, S-NSSAI, application identifier and full name domain name FQDN of an Edge Application Server (EAS); the SMF network element determines a first DNS message processing rule according to the first EDI;
The SMF network element sends the first DNS message processing rule to the EASDF network element, so that the EASDF network element inquires the first UE of an Internet Protocol (IP) address of an EAS corresponding to the FQDN according to the first DNS message processing rule;
and when the first time period is greater than or equal to a preset time period, the SMF network element receives the updated first EDI sent by the UDR network element, where the first time period includes: the SMF network element receives the time period after the first EDI, and/or the UDR network element sends the time period after the first EDI.
2. The method according to claim 1, wherein the SMF network element receives the updated first EDI sent by the UDR network element if the first period of time is greater than or equal to a preset duration, the first period of time comprising: the time period after the SMF network element receives the first EDI, and/or the time period after the UDR network element sends the first EDI, including:
when the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to a preset duration, the SMF network element sends update request information to the UDR network element;
The SMF network element receives update response information sent by the UDR network element; the update response information includes the updated first EDI.
3. The method of claim 1, wherein the updated first EDI is obtained by the UDR network element and sent to the SMF network element when a time period after the sending of the first EDI to the SMF network element is greater than or equal to a preset duration.
4. The method according to claim 1, wherein the SMF network element receives the updated first EDI sent by the UDR network element if the first period of time is greater than or equal to a preset duration, the first period of time comprising: the time period after the SMF network element receives the first EDI, and/or the time period after the UDR network element sends the first EDI, including:
when the time period after the SMF network element receives the first EDI sent by the UDR network element is greater than or equal to a preset time period and the SMF network element does not receive the updated first EDI sent by the UDR network element, the SMF network element sends update request information to the UDR network element;
the SMF network element receives update response information sent by the UDR network element; the update response information includes the updated first EDI.
5. The method according to any one of claims 1-4, wherein, after the SMF network element receives the updated first EDI sent by the UDR network element, if the first period of time is greater than or equal to a preset duration, the method further comprises:
and the SMF network element cleans up the cache of the first EDI.
6. An information acquisition method, the method comprising:
the method comprises the steps that a Unified Data Repository (UDR) network element receives subscription information sent by a Session Management Function (SMF) network element, wherein the subscription information comprises DNN, S-NSSAI and application identifiers respectively corresponding to first UE;
the UDR network element determines a first EDI according to DNN, S-NSSAI and application identifiers respectively corresponding to the first UE in the subscription information; the first EDI comprises DNN, S-NSSAI, application identifier and full name domain name FQDN of an Edge Application Server (EAS);
the UDR network element sends the first EDI to the SMF network element;
when the first time period is greater than or equal to a preset time period, the UDR network element obtains the updated first EDI, where the first time period includes: the SMF network element receives the time period after the first EDI, and/or the UDR network element sends the time period after the first EDI;
And the UDR network element sends the updated first EDI to the SMF network element.
7. The method of claim 6, wherein the UDR network element obtains the updated first EDI if the first period of time is greater than or equal to a preset duration, the first period of time comprising: the SMF network element receives a time period after the first EDI, and/or the UDR network element sends the time period after the first EDI, including:
the UDR network element receives update request information sent by the SMF network element; the update request information is sent by the SMF network element when a time period after the SMF network element receives the first EDI sent by the UDR network element is more than or equal to a preset time period;
and the UDR network element responds to the update request information to acquire the updated first EDI.
8. The method of claim 6, wherein the UDR network element obtains the updated first EDI if the first period of time is greater than or equal to a preset duration, the first period of time comprising: the SMF network element receives a time period after the first EDI, and/or the UDR network element sends the time period after the first EDI, including:
When the time period after the UDR network element sends the first EDI to the SMF network element is greater than or equal to a preset time period, the UDR network element sends query request information to an application function AF network element; the query request information is used for requesting to query the latest first EDI;
and the UDR network element receives the updated first EDI sent by the AF network element.
9. An information acquisition apparatus, characterized in that the apparatus is applied to a session management function SMF network element, the apparatus comprising: a transceiver module and a processing module;
the receiving and transmitting module is used for receiving Domain Name System (DNS) query information sent by an EASDF network element; the DNS query information includes address information of the first user equipment UE and a fully-called domain name FQDN of the edge application server EAS;
the processing module is configured to determine DNN, S-nsai and an application identifier corresponding to the first UE respectively according to address information of the first UE and FQDN of EAS in the DNS query information;
the receiving and transmitting module is further configured to send subscription information to a unified data block UDR network element, where the subscription information includes DNN, S-nsai and an application identifier corresponding to the first UE respectively; receiving a first EDI sent by the UDR network element, wherein the first EDI is determined by the UDR network element according to DNN, S-NSSAI and application identifiers respectively corresponding to the first UE in the subscription information; the first EDI comprises DNN, S-NSSAI, application identifier and FQDN of EAS;
The processing module is further configured to determine a first DNS message processing rule according to the first EDI;
the transceiver module is further configured to send the first DNS message processing rule to the EASDF network element, so that the EASDF network element queries, for the first UE, an internet protocol IP address of an EAS corresponding to the FQDN according to the first DNS message processing rule; receiving updated first EDI sent by the UDR network element when the first period of time is greater than or equal to a preset period of time, where the first period of time includes: the transceiver module receives the time period after the first EDI, and/or the UDR network element sends the time period after the first EDI.
10. An information acquisition device, characterized in that it is applied to a unified data repository, UDR, network element, the device comprising: a transceiver module and a processing module;
the receiving and transmitting module is used for receiving subscription information sent by a session management function SMF network element, wherein the subscription information comprises DNN, S-NSSAI and application identifiers respectively corresponding to the first UE;
the processing module is used for determining a first EDI according to DNN, S-NSSAI and application identifiers respectively corresponding to the first UE in the subscription information; the first EDI comprises DNN, S-NSSAI, application identifier and full name domain name FQDN of an Edge Application Server (EAS);
The transceiver module is further configured to send the first EDI to the SMF network element;
the processing module is further configured to obtain, when the first period of time is greater than or equal to a preset duration, an updated first EDI, where the first period of time includes: the SMF network element receives the time period after the first EDI, and/or the receiving and transmitting module sends the time period after the first EDI; and sending the updated first EDI to the SMF network element.
11. A communication device, the communication device comprising: a processor and a memory;
the memory stores instructions executable by the processor;
the processor is configured to, when executing the instructions, cause the communication device to implement the method of any of claims 1-5 or 6-8.
12. A computer-readable storage medium, the computer-readable storage medium comprising: computer software instructions;
when the computer software instructions are run in a computer, the computer is caused to carry out the method according to any one of claims 1-5 or 6-8.
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