What is cell update in UMTS?

What is cell update in UMTS?

The main purpose of the cell update procedure is to update UTRAN with the current cell of the UE after cell reselection in CELL_FACH or CELL_PCH state. It may also be used for supervision of the RRC connection, even if no cell reselection takes place. UE. UTRAN. CELL UPDATE.

What is cell DCH state?

DCH : You can call this state as ‘Normal traffic mode’. When you make any connection for traffic (e.g, voice call and data call), in most case you (UE/Network) establish DCH state and most of traffic (Voice data, packet data) are being transmitted and received in this stage.

What is URA in UMTS?

URA or UTRAN Registration Area is a colection of cells that are used for fast moving UE’s in Connected mode when they are not transferring any data.

What is RRC IDLE state in LTE?

RRC Idle State In this LTE UE can receive broadcast or multi-cast data, it will monitor a paging channel to detect incoming calls, it will perform neighbor cell measurements and does cell selection as well as reselection and acquires system information.

What is RRC in UMTS?

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 for UMTS, in TS 36.331 for LTE and in TS 38.331 for 5G New Radio.

What is URA in telecom?

URA. Uniform Resource Agent. Technology, Computing, Internet.

What is RAC in 3g?

Routing Area Code. Routing Area Code is a fixed length of 1 octet and identifies a routing area within a location area. The RAC is part of the RAI (Routing Area Identity).

What is SIB11 in UMTS?

SIB11 specifies the measurement control information required by the UE in Idle mode. SIB12 specifies the measurement control information required by the UE in FACH state. If SIB12 is not broadcasted, the UE in connected mode can also use the configuration information specified by SIB11.

What is RAC in UMTS?

Routing Area Identifier. RAC refers to Routing Area Code, and it uniquely identifies every RA inside the LA.

What is TAC LAC?

The Location Area Code/Tracking Area Code, abbreviated as LAC/TAC, is an identifier of the location area within an MNO’s network. This part of the code can be represented using hexadecimal values with a length of two octets.

What are RRC procedures?

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 ran paging?

RAN-based location management and RAN paging When the serving RAN node receives signaling or data for a UE in the inactive state, it initiates RAN paging. The paging is performed in an RNA that consists of one or more cells and was assigned to the UE when it was ordered to enter the inactive state.

What is SRB in UMTS?

A Signaling Radio Bearer (SRB) is a radio bearer that carries DCCH signaling data. An SRB is used during connection establishment to establish the Radio Access Bearers (RABs) and then also to deliver signaling while on the connection (for example, to perform a handover, reconfiguration or release).

What is NAS in UMTS?

Non-access stratum (NAS) is a functional layer in the UMTS and LTE wireless telecom protocol stacks between the core network and user equipment. This layer is used to manage the establishment of communication sessions and for maintaining continuous communications with the user equipment as it moves.