Patent ID: 11943819
Assignee: NEC CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A radio terminal comprising:
a memory; and
at least one processor coupled to the memory, wherein
the at least one processor is configured to:
support a first Cellular Internet of Things (CIoT) architecture which enables the radio terminal to transport user data over a control plane;
support a second CIoT architecture which enables the radio terminal to transport user data over a user plane; and
transmit to a radio station a Radio Resource Control (RRC) Connection Setup Complete message including an information element indicating to the radio station that the radio terminal supports the second CIoT architecture,

wherein the RCC Connection Setup Complete message further includes a Non-Access Stratum (NAS) message, the NAS message being different from the information element, and
wherein the information element is Access Stratum (AS) layer information and is not included in the NAS message.