name: EDT
full_form: Early Data Transmission
context: The following figure shows a single MO small data delivered from the UE using Early Data Transmission. Figure 6.22.2.1-1: Single MO data Transmission using 5GS UP Optimization and Early Data Transmission (EDT) Figure 6.22.2.1-1 shows the following steps: 1a. The UE sends RRC Connection Resume Request with the UL small data included as UL EDT (Early Data Transmission) data with the RRC Connection Resume Request (Msg 3) on SRB0 and hence it is not integrity protected. The UE includes information to be used for context identification and re-establishment in the RRC Connection Resume Request message: the Resume ID and a ShortResumeMAC-I. For protection of the UL EDT data in the RRC Connection Resume Request message the description in clause TS 33.401 [7] for protection of EDT data is re-used with the following enhancements: - The UE is integrity protecting the UL EDT data in PDCP protocol using a newly derived KUPint if configured in PDCP. - The target RAN verifies the MAC-I included in
description: Early Data Transmission (EDT) is a procedure used for transmitting small data from the User Equipment (UE) to the network during the connection resume process. This allows for faster data transmission and an improved user experience.
explanation: The text describes EDT as a specific set of steps involved in transmitting data during a connection resume, highlighting its role as a defined sequence of operations.
section_title: 6.22.2.1	UL data transmission from CM-IDLE with Early Data Transmission
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