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 in 5G?
Cell reselection identifies the cell that the UE should camp on. It is based on cell reselection criteria which involves measurements of the serving and neighboring cells. SIB1 together with SIB2-5 are sent over the air so that the UE get proper parameters to do correct cell selection and reselection decisions.
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 Qrxlevmin?
This specifies the minimum required RX (Receiver) level in the cell in dBm (decibels with reference to 1mW).
What is the difference between cell reselection and handover?
While handover controls the mobility of UE in Connected (EMM-Registered, ECM-Connected and RRC-Connected) state, cell reselection controls the same while in Idle (EMM-Registered, ECM-Idle and RRC-Idle) state.
What is SIB and MIB in LTE?
Description. MIB. Carries physical layer information of LTE cell which in turn help receive further SIs, i.e. system bandwidth. SIB1. Contains information regarding whether or not UE is allowed to access the LTE cell.
What is Inter RAT handover in LTE?
Inter RAT Handover (Target) Handover from an E-UTRAN to a different RAT. The procedure for when a UE is entering the E-UTRAN cell. Intra eNB Handover (Source) Handover from one sector to another managed by the same eNB.
What is reselection in telecom?
Cell Reselection is a kind of mechanism to change cell after UE is camped on a cell and stay in IDLE mode. This is to let UE get connected to cell which has the best condition among all the cells to which the UE is allowed to camp on.
What is LTE Handover?
Abstract: Handover in LTE occurs when a device moves from the cell coverage serving it towards another; a process where the user established session must not be interrupted due to this cell change.
What is call flow in LTE?
Call flow is how signaling and sessions are created across an LTE network.
Why does MIB need Phich?
The number of PHICH groups is a cell level parameter and it is also transmitted as part of MIB, so as to assist the UE in getting the control channel mapping. The PHICH group value/Ng is decided based on how much users per subframe would the system want to support in Uplink PUSCH.
What are 3GPP standards?
The 3rd Generation Partnership Project (3GPP) is an umbrella term for a number of standards organizations which develop protocols for mobile telecommunications. Its best known work is the development and maintenance of: GSM and related 2G and 2.5G standards, including GPRS and EDGE.
How is the cell power determined in 3GPP?
The cell power criteria described in this page (in 3GPP as well) is determined only by P-CPICH power, you have to think of another signal power (PSS, SCC power and quality) which UE has to detect even before detecting P-CPICH. This is not all.
How does cell reselection work on an UE?
Cell Reselection Cell Reselection is a kind of mechanism to change cell after UE is camped on a cell and stay in IDLE mode. This is to let UE get connected to cell which has the best condition among all the cells to which the UE is allowed to camp on.
How does cell reselection work on LTE quick reference?
LTE Quick Reference Go Back To Index Home : www.sharetechnote.com. Cell Reselection. Cell Reselection is a kind of mechanism to change cell after UE is camped on a cell and stay in IDLE mode. This is to let UE get connected to cell which has the best condition among all the cells to which the UE is allowed to camp on.
What are the performance requirements for cell reselection?
Details on performance requirements for cell reselection can be found in TS 38.133 [8]. The NAS is informed if the cell selection and reselection result in changes in the received system information relevant for NAS. For normal service, the UE shall camp on a suitable cell, monitor control channel (s) of that cell so that the UE can: