name: E-UTRAN
full_form: Evolved Universal Terrestrial Radio Access Network
context: When a UE moves from 5GS to an E-UTRAN, the UE needs to map the 5G-GUTI to a GUTI. The mapping of the 5G-GUTI to a GUTI shall be done as follows: 5GS <MCC> maps to E-UTRAN <MCC> 5GS <MNC> maps to E-UTRAN <MNC> 5GS <AMF Region ID> and 5GS <AMF Set ID> map to E-UTRAN <MME Group ID> and part of E-UTRAN <MME Code> as follows: - 8 bits of the 5GS <AMF Region ID> starting at bit 7 and down to bit 0 are mapped into bit 15 and down to bit 8 of the E-UTRAN <MME Group ID>; - 8 bits of the 5GS <AMF Set ID> starting at bit 9 and down to bit 2 are mapped into bit 7 and down to bit 0 of the E-UTRAN <MME Group ID>; - 2 bits of the 5GS <AMF Set ID> starting at bit 1 and down to bit 0 are mapped into bit 7 and down to bit 6 of the E-UTRAN <MME Code>; 5GS <AMF Pointer> maps to part of E-UTRAN <MME Code> as follows: - 6 bits of the 5GS <AMF Pointer> starting at bit 5 and down to bit 0 are mapped into bit 5 and down to bit 0 of the E-UTRAN <MME Code>. 5GS <5G-TMSI> maps to to E-UTRAN <M-TMSI>
description: E-UTRAN (Evolved Universal Terrestrial Radio Access Network) is a telecommunications network that provides radio access for mobile devices. It plays a crucial role in mapping 5G-GUTI to GUTI when a UE moves from 5GS to E-UTRAN, enabling seamless communication and data transfer.
explanation: E-UTRAN is classified under the entity type 'Telecommunications Network' because it represents a specific network architecture designed for radio access in mobile communications. The detailed description of its role in mapping 5G-GUTI to GUTI highlights its significance in facilitating communication between different network systems.
section_title: 2.10.2.1.2 Mapping in the UE
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biotag_Description: B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,B-Parameter,O,O,B-Device,O,O,B-Technology,O,O,O,O,O,O,O,O