Section: 8.3.20.8 Extended protocol configuration options
Content: This IE shall be included in the message when the UE wishes to transmit (protocol) data (e.g. configuration parameters, error codes or messages/events) to the network, and: a) the UE is in NB-S1 mode; b) the requested PDN Type is non-IP or Ethernet; or c) the requested APN is for UAS services. This IE shall be included if: a) the UE supports local IP address in traffic flow aggregate description and TFT filter, the UE is in NB-S1 mode and the requested PDN Type is different from non-IP and Ethernet; or b) the UE supports local IP address in traffic flow aggregate description and TFT filter, the requested PDN Type is different from non-IP and Ethernet, and the requested APN is for UAS services. This IE shall not be included if the Protocol configuration options IE is included in the message.