name: eDRX
full_form: extended Discontinuous Reception
context: When extended DRX (eDRX) is used, the following applies: - For RRC_INACTIVE, eDRX configuration for RAN paging is decided and configured by NG-RAN. In RRC_INACTIVE the UE monitors both RAN and CN paging; - For RRC_IDLE, eDRX for CN paging is configured by upper layers. In RRC_IDLE the UE monitors only CN paging; - Information on whether eDRX for CN paging and RAN paging is allowed on the cell is provided separately in system information; - The maximum value of the eDRX cycle is 10485.76 seconds (2.91 hours) while the minimum value of the eDRX cycle is 2.56 seconds; - The hyper SFN (H-SFN) is broadcast by the cell and increments by one when the SFN wraps around; - Paging Hyperframe (PH) refers to the H-SFN in which the UE starts monitoring paging according to DRX during a Paging Time Window (PTW). The PH and PTW are determined based on a formula (see TS 38.304[ NR; User Equipment (UE) procedures in Idle mode and in RRC Inactive state ]  [10]) that is known by the AMF, UE and NG-RAN; - H-SFN, PH and PTW are used if the eDRX cycle is greater than 10.24 seconds; - When the RRC_IDLE eDRX cycle is longer than the system information modification period, the UE verifies that stored system information remains valid before resuming/establishing an RRC connection.
description: Extended Discontinuous Reception (eDRX) is a procedure in mobile networks that allows user equipment (UE) to extend its discontinuous reception cycles, enabling longer periods of sleep and reduced power consumption. This feature is particularly useful for IoT devices or other low-power applications where battery life is critical. The eDRX configuration can be applied differently depending on the UE's state, whether it is in RRC_INACTIVE or RRC_IDLE mode. In both states, the UE monitors paging signals from the network but with different configurations and timing. The maximum cycle for eDRX is 10485.76 seconds (2.91 hours), and the minimum is 2.56 seconds. Additionally, eDRX utilizes concepts like Hyper SFN (H-SFN) and Paging Hyperframe (PH) to manage when the UE should monitor paging signals during a Paging Time Window (PTW). These mechanisms are crucial for balancing power efficiency with timely communication in mobile networks.
explanation: eDRX is classified as a Procedure because it outlines specific steps and configurations that both the network and user equipment must follow to achieve extended discontinuous reception. This involves detailed timing, state-dependent behavior, and the use of specialized frames and windows for efficient paging and power management.
section_title: 9.2.10 Extended DRX for RRC_IDLE and RRC_INACTIVE
biotag_Context: O,O,B-Procedure,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Network,O,B-Network,O,O,O,O,B-Procedure,O,B-Network,O,O,O,O,O,O,O,O,O,B-Device,O,O,B-Network,O,O,O,O,O,B-Procedure,O,B-Network,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,B-Procedure,O,O,O,O,O,B-Parameter,O,O,O,B-Device,O,O,O,O,O,B-Procedure,O,O,B-Parameter,I-Parameter,I-Parameter,O,O,B-Message,O,B-Parameter,O,O,O,O,O,O,O,B-Specification,O,O,B-Device,I-Device,O,O,O,O,O,O,O,B-Protocol,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,B-Message,O,B-Parameter,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,B-Protocol,O
biotag_Description: O,B-Procedure,I-Procedure,O,O,O,O,O,O,O,O,O,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-Technology,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O,O,O,O,B-Technology,O,O,B-Procedure,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,B-Parameter,I-Parameter,I-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O