The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and Base Station.

As in LTE, RRC Reconfiguration is the most important steps in establishing Radio Connection between UE and Network. Understanding every details of RRC Reconfiguration would imply understanding almost everything in NR Radio Stack.

Nov 15, 2012 · This document provides an overview of RRC procedures in LTE, including: 1. Key differences from 3G include simplified RRC states (connected/idle instead of multiple states), single shared MAC entity, and elimination of common/dedicated channels. 2.

The purpose of RRC CONNECTION RE-ESTABLISHMENT procedure is to re-establish the RRC connection, which involves the resumption of SRB1 operation and the re-activation of security (without changing algorithms). The UE shall only initiate …

RRC Connection Establishment: The Radio Resource Control layer establishes a connection between the UE and the eNodeB. This procedure is initiated with a random access with a preamble. This is followed up with RRC connection establishment signaling on the UL-SCH and DL-SCH. Attach and Authentication: The UE now attaches to the Core Network.

May 3, 2013 · The purpose of this procedure is to re-establish the RRC connection, which involves the resumption of SRB1 (SRB1bis for a NB-IoT UE for which AS security has not been activated) operation, the re-activation of security (except for a NB-IoT UE for which AS security has not been activated) and the configuration of only the PCell.

Sep 21, 2023 · Here's a detailed technical explanation of the RRC Connection Reestablishment with UE Information procedure: 1. Initial RRC Connection: Normal Operation: Initially, the UE and the network are connected, allowing the UE to access network services. 2. Trigger for Reestablishment:

Describes the RRC connection signaling procedure with detailed description of the RRC message contents. Messages involved in LTE attach and default bearer setup are described in detail. LTE signaling protocol define a large number of identifiers for UEs, RABs and signaling endpoints.

Dec 14, 2023 · The 5G New Radio (NR) Radio Resource Control (RRC) procedure plays a crucial role in the establishment, maintenance, and release of radio resources in a 5G network.

Oct 3, 2023 · The Radio Resource Control (RRC) connection setup procedure in 5G is a critical step that enables the establishment of a connection between a user equipment (UE) and the network.