What is cell reselection in LTE?
What is cell reselection in LTE?
Cell Re selection is a procedure used to change the cell after the UE is camped on a cell and stays in the Idle mode. This procedure is used to let the UE get camped on a cell which has the best radio conditions among all the other cells on which the UE is allowed to camp on.
What is cell reselection GSM?
Inter-system cell reselection between WCDMA and GSM enables the user equipment in idle mode to choose a new cell of another system to camp on, thus providing service availability when WCDMA coverage fades out.
What is the difference between cell selection and cell reselection?
Upon PLMN selection, LTE UE uses “cell selection” for fast cell searching to camp on. To receive system information LTE UE tunes to the control channels. The PLMN knows the tracking area of the cell in which the registered UE is camped. …
What is acceptable cell in LTE?
In a area where UE is not able to find any suitable cell to camp on, it goes for acceptable cell. An “acceptable cell” is a cell on which the UE may camp to obtain limited service (originate emergency calls and receive ETWS and CMAS notifications).
What is SIB1 in LTE?
SIB1 contains cell access related information (e.g. a PLMN identity list, tracking area code, cell identity, etc.), information for cell selection (e.g. minimum required Rx level in the cell and offset), p-Max, frequency band indicator, scheduling information, TDD configuration, SI-window length and system information …
What is a cell LTE?
LTE stands for Long Term Evolution and is sometimes referred to as 4G LTE. It’s a standard for wireless data transmission that allows you to download your favorite music, websites, and video really fast—much faster than you could with the previous technology, 3G.
What is cell reselection in 5G?
In 5G, Cell reselection can be based upon a cell level and beam level measurements. When the gNB transmits multiple beams, a UE is required to generate a cell level measurement from one or more beam level measurements.
What is cell selection?
Cell sorting involves both the segregation of a mixed population of cells with different fates and properties into distinct domains, and the active maintenance of their segregated state.
What is IRAT?
IRAT stands for Inter Radio Access Technology. RAT can be either GSM,CDMA,WiMAX,LTE,TD-SCDMA or any other wireless technology used to provide air interface to mobile to obtain various services(voice,email,internet,VOIP).
What is LTE Rach procedure?
Two types of RACH process : Contention-based and Contention-free. When a UE transmit a PRACH Preamble, it transmits with a specific pattern and this specific pattern is called a “Signature”. In each LTE cell, total 64 preamble signatures are available and UE select randomly one of these signatures.
