学习5G知识，势必要去阅读相关的技术标准，而纯英文的标准协议对于初学者来说是个门槛。

个人在学习5G标准3GPP TS 29244-g30过程中，也发现google的机器翻译实在晦涩难懂，所以个人在借助百度翻译（中国人更懂中文）的同时，人工对每句话进行了校对。

在自己学习的同时，也将翻译内容分享给给广大网友。由于个人能力有限，翻译不到位的地方还请各位网友们指正。

5.4.11 (Un)solicited Application Reporting （非）请求应用报告

For EPC, (un)solicited Application Reporting refers to the process of reporting the start or stop of applications by the TDF or PCEF. See 3GPP TS 23.203 [3] and 3GPP TS 29.212 [8].

对于EPC，（非）请求Application Reporting是指TDF或PCEF报告应用开始或停止的过程。

For 5GC, solicited Application Reporting refers to the process of reporting the start or stop of applications by the SMF to the PCF. See 3GPP TS 23.503 [44] and 3GPP TS 29.512 [41]. Unsolicited application reporting is not applicable for 5GC.

对于5GC，请求Application Reporting是指SMF向PCF报告应用开始或停止的过程。未经请求的应用报告不适用于5GC。

The CP function shall instruct the UP function to detect and report applications by:

CP功能应指示UP功能通过以下方式检测和报告应用程序：

- creating the necessary PDR(s) to represent the applications to detect;

-创建必要的PDR来表示要检测的应用程序；

- creating a URR with the Reporting Trigger IE set to detect the start and/or stop of Traffic;

-创建一个URR，设置Reporting Trigger IE以检测流量的开始和/或停止；

创建带有报告触发IE的URR，以检测流量的开始和/或停止；

- the CP function may include a zero quota together with a FAR ID for Quota Action IE in the URR to instruct the UP function to drop or buffer the packets pertaining to the detected application traffic before the quota is granted in the subsequent PFCP Session Modification Request message. The FAR identified by the FAR ID for Quota Action shall be provisioned according to the "sdfHandl" instruction received from the PCF or the local policies as specified in 3GPP TS 29.512 [41].

-CP功能可以包括零配额以及用于URR中的Quota Action IE的FAR ID，以指示UP功能在随后的PFCP Session Modification Request消息中授予配额之前丢弃或缓冲与检测到的应用流量有关的分组。由FAR ID标识的用于Quota Action的FAR应根据从PCF收到的“sdfHandl”指令或本地策略进行设置。

- associating the URR to the PDR.

-将URR与PDR相关联。

For unsolicited application reporting, a PFCP session which is not linked to any specific TDF session may be established and the PDI in the PDR(s) does not contain any UE IP address.

对于未经请求的应用报告，可以建立未链接到任何特定TDF会话的PFCP会话，并且PDR中的PDI不包含任何UE IP地址。

When detecting the start or stop of an application, the UP function shall then initiate the PFCP Session Report procedure and send a Usage Report with the Usage Report Trigger set to 'Start of Traffic' or 'Stop of Traffic'. The UP function shall also include the following information in the Usage Report:

当检测到应用程序的启动或停止时，UP功能应启动PFCP Session Report程序，并发送一份Usage Report，Usage Report Trigger设置为“Start of Traffic”或“Stop of Traffic”。UP功能还应在Usage Report中包括以下信息：

- when reporting the start of an application:

-报告应用程序启动的时间：

- the Application ID;

-Application ID；

- the Flow Information including the Flow Description and the Flow Direction, if the traffic flow information is deducible;

-如果流量流信息是可推断的，则包括Flow Description和Flow Direction的Flow Information；

- the Application-Instance-Identifier, if the traffic flow information is deducible; and

-Application-Instance-Identifier，如果流量流信息是可推断的；以及

- if no UE IP address was provisioned in the PDI, the UE's IP address, and the Network instance when multiple PDNs with overlapping IP addresses are used in the UP function.

-当UP功能中使用多个IP地址重叠的PDN时，如果PDI、UE的IP地址和Network实例中没有设置UE IP地址，则包括UP的IP地址、网络实例。

NOTE: When the CP function instructs the UP function to perform unsolicited application reporting, the PDI in the corresponding PDR has no UE IP address.

注意：当CP功能指示UP功能执行未经请求的应用程序报告时，相应PDR中的PDI没有UE IP地址。

- when reporting the stop of an application:

-报告停止应用程序的时间：

- the Application ID;

-Application ID；

- the Application-Instance-Identifier, if an Application Identifier was provided when reporting the start of the application;

-Application-Instance-Identifier，如果在报告应用程序启动时提供了Application Identifier；

- if no UE IP address was provisioned in the PDI, the UE's IP address, and the Network instance when multiple PDNs with overlapping IP addresses are used in the UP function.

-当UP功能中使用具有重叠IP地址的多个PDN时，如果在PDI中没有提供UE IP地址，则包括UE的IP地址和网络实例。

The UP function shall only report the Application ID when detecting the start or stop of an application and the Reduced Application Detection Information flag is set in the Measurement Information of the URR, e.g. for envelope reporting.

UP功能应仅在检测到应用程序的启动或停止时报告Application ID，并在URR的Measurement Information中设置Reduced Application Detection Information标志，例如用于信封报告。