What is the RRC in LTE?

The RRC protocol is the signaling exchanged between the mobile and the evolved Node Base station (eNB) over the LTE-Uu radio interface. The RRC protocol performs the following functions: – Broadcast of system information related to the characteristics of the radio interface.

What is RRC 3g?

RRC is a sublayer of Layer 3 on the UMTS radio interface; it exists in the control plane only and provides an information transfer service to NAS (Non Access Stratum) signalling.

What is NAS RRC?

Radio Protocols for LTE and LTE-Advanced by The RRC is the highest layer in the control plane of the Access Stratum (AS). The RRC also transfers messages of the Non-Access Stratum (NAS), which is located above the RRC layer. NAS messages are used to control communications between a UE and the Evolved Packet Core (EPC).

What is the goal of RRC?

GOAL OF RRC To make HIV/AIDS free INDIA by creating awareness about the spread and cause of HIV/AIDS among the student youth, non-student youth and public.

What is RRC reconfiguration in LTE?

RRC CONNECTION RECONFIGURATION message is the command to modify an RRC connection. The purpose of this procedure is, · To establish/modify/release Radio Bearers. · To perform Handover. · To setup/modify/release Measurements.

Why is RRC connection needed?

RRC CONNECTION REQUEST message is used to request the E-UTRAN for the establishment of an RRC connection. It is sent as part of the Random Access procedure. It is transferred using SRB0 on the Common Control Channel (CCCH) because neither SRB1 nor a Dedicated Control Channel (DCCH) has been setup at this point.

What are the two modes of RRC?

6.1 General. An overall picture of the transitions between RR modes of operation and RRC states and modes is in Figure 6.1. 1. The RRC modes are RRC-Idle mode and RRC-Connected mode.

What is LTE attach procedure?

LTE attach procedure is the procedure in which the UE registers to the network, and creates the EPS Bearer between the UE and the PGW, in order to be able to send and receive data, to and from the PDN. LTE Attach Procedure. Learn Mobile Packet Core Network in 5 Hours.

How do LTE calls work?

Your mobile connects to the nearest cellular tower. You then place a VoLTE call and it is carried to this cell tower as a normal voice call would be. The cellular tower then uses the VoIP method to transfer your call to the call recipient. The recipient answers using their VoIP/VoLTE device and the call is made.

How does LTE stuff work?

The LTE network is based on Internet Protocol (IP) standards, the kind that delivers Web pages to your computer, and adds voice data to the transmission streams [source: 4G Americas]. It uses a schematic called OFDMA, or Orthogonal Frequency Division Multiple Access, which is similar to the OFDM approach in WiMAX.

What happens when a LTE UE is powered on?

A UE performs cell search on all frequencies before selecting or re-selecting to a cell. In an LTE system, two types of synchronization signals for cell search: primary synchronization signals (PSS) and secondary synchronization signals (SSS). The UE calculate the PCI by using (3 x cell group number + cell number) .

What are the RRC procedures in LTE SlideShare?

In LTE there is only shared transport channel are defined. CELL_PCH and URA_PCH is also removed because in LTE. Therefore this will simplifies the RRC State machine handling and improves RRC performance. This will also simplify the RRM algorithm which decides RRC states.

What’s the difference between LTE and 3G RNC?

Less signaling message in case of Reconfiguration: – In LTE there is only one reconfiguration message to reconfigure all logical, transport and physical channel where as in 3G-RNC system there are number of reconfiguration message i.e. RB reconfiguration , TRCH configuration, PHY configuration.

Which is the Radio Resource Control ( RRC ) protocol?

more…. The Radio Resource Control (RRC) protocol is used in UMTS and LTE on the Air interface. It is a layer that exists between UE and eNB and exists at the IP level. This protocol is specified by 3GPP in TS 25.331 for UMTS and in TS 36.331 for LTE.

What are the four layers of LTE protocol?

LTE Protocol Stack Layers 1 Physical Layer (Layer 1) 2 Medium Access Layer (MAC) 3 Radio Link Control (RLC) 4 Radio Resource Control (RRC) 5 Packet Data Convergence Control (PDCP) 6 Non Access Stratum (NAS) Protocols