Howtosignalprocessing
- What is PSS and SSS in LTE?
- What is cell search in LTE?
- What is cell selection and reselection in LTE?
- Why cell search is essential in LTE in which scenarios cell search takes place?
What is PSS and SSS in LTE?
In LTE, there are two downlink synchronization signals which are used by the UE to obtain the cell identity and frame timing. Primary synchronization signal (PSS) Secondary synchronization signal (SSS)
What is cell search in LTE?
Cell searching is a procedure in which a UE achieves time and frequency synchronization with a cell, obtains the physical cell identifier (PCI), and learns the signal quality and other information about the cell based on the PCI. A UE performs cell search on all frequencies before selecting or re-selecting to a cell.
What is cell selection and reselection in LTE?
4G/LTE - Basic Procedures
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.
Why cell search is essential in LTE in which scenarios cell search takes place?
Cell search is essential, since it ensures that the UE's receiver is able to synchronize in both time and frequency to an LTE downlink signal. The Device Under Test (DUT) is than enabled to receive important parameters via the broadcasted system information.
