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. This protocol is specified by 3GPP in TS 25.331 [2] for UMTS, in TS 36.331 [3] for LTE and in TS 38.331 [4] for 5G New Radio. RRC messages are transported via the PDCP-Protocol.

(1) is the command (RRC message) to tel the UE to configure the Radio Stack (PHY, MAC) to establish the aggregated communication (Carrier Aggregration). You need to look into every details of RRC Connection Configuration message to fully understand this step.

Dec 19, 2023 · The RRC layer in 4G (LTE) networks plays a critical role in controlling the establishment, maintenance, and release of radio bearers, managing security procedures, and enabling mobility within the network.

Mar 23, 2025 · The Radio Resource Control (RRC) protocol is a fundamental layer in the LTE (Long-Term Evolution) control plane that is defined in 3GPP TS 36.331. It plays a crucial role in the configuration, management, and release of radio resources between the User Equipment (UE) and the Evolved Node B (eNodeB).

Sep 6, 2024 · The Radio Resource Control (RRC) protocol is a crucial component of the LTE (4G) network architecture. It operates at the network layer (Layer 3) and is responsible for managing the connection between the User Equipment (UE) and the Evolved NodeB (eNB).

Oct 7, 2017 · In LTE KPI Optimization series, this session explains the LTE RRC Success Rate KPI. The session covers the signalling flow for LTE accessibility in detail along with messages where the KPIs are pegged. The causes of LTE RRC failures are also covered in detail along with actions that can resolve those issues.

Mar 8, 2024 · 4g Radio resource control (RRC) protocol exists at IP level (layer 3) between UE and eNB. The major functions of the RRC protocol include connection establishment/release functions, broadcast of system information, radio bearer establishment, reconfiguration/release, RRC connection mobility procedures, paging notification and outer loop power ...

Jun 19, 2023 · RRC plays a crucial role in managing and controlling the radio resources of a mobile network, ensuring efficient utilization of the available spectrum and providing Home 5G

Dec 11, 2023 · Radio Resource Control (RRC) is a crucial component in mobile communication systems, particularly in cellular networks like GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), …

Tracking Area is a logical concept of an area where a user can move around without updating the MME. The network allocates a list with one or more TAs to the user. In certain operation modes, the UE may move freely in all TAs of the list without updating the MME. You can think of 'Tracking Area' as 'Routing Area' in UMTS.