What is the difference between PSS and SSS?

The primary synchronization signal (PSS) is linked to the cell identity within the group ( N I D ( 2 ) ). The secondary synchronization signal (SSS) is linked to the cell identity group ( N I D ( 1 ) ) and the cell identity within the group ( N I D ( 2 ) ).

How UE decode PSS and SSS?

The PSS is repeated in subframe 5 which means UE is synchronized on 5ms basis since each subframe is 1ms. From PSS, UE is also able to obtain physical layer identity (0 to 2). In the next step UE finds the secondary synchronization signal (SSS).

How many subcarriers does PSS be transmitted on?

The PSS is constructed from a frequency-domain ZC sequence of length 63. Transmitted on 6th symbol of slot 0 and slot10 of each radio frame on 72 subcarriers centered around DC.

What is the purpose of SSS in 5G?

5G-NR Secondary Synchronization Signal (SSS) is Physical Layer specific signal and help UE to get subframe boundary. It is similar to PSS, as it is also an m-Sequence.

What is ESS in LTE?

ESS (Extended Synchronization Signal) ESS is something that is not in LTE. Main purpose of ESS is to uniquely identify the symbol number within the subframe.

What is the use of PSS?

The PSS provides modulation of field voltage that damps out power and speed oscillations through normal AVR control. The tuning study determines the optimum PSS settings, based on the particular generator, AVR settings, and system characteristics. Special purpose detailed models are used for this analysis.

What happens while UE first time switch on?

When the UE powers on, it checks if it is possible to camp on the last registered PLMN (Public Land Mobile Network). If no any stored system on the UE, UE will perform the initial cell selection: Scan all RF frequencies band (ex 900MHz,1800MHz,1900MHz….) and which band are using by network.

What happens when UE is switched on in LTE?

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 happens when a UE is switched on in LTE?

How do you calculate PCI in LTE?

The PCI value is created from two components – PSS and SSS. The PSS, Primary Synchronization Signal, has the value 0, 1, or 2. The SSS, Secondary Synchronization Signal, can have a value between 0 and 167. The PCI value is [(3x SSS)+(PSS)], resulting in a value between 0 and 503.

What is ESS in Ericsson?

Ericsson Spectrum Sharing is a unique and market-disruptive solution that introduces a new way of rolling out 5G. This innovation marks the first time that spectrum can be shared dynamically between technologies on the same band, enabling spectrum sharing between 4G and 5G.

What is PSS and SSS signal in LTE?

Synchronization Signals (PSS and SSS) 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 are primary and secondary synchronization signals (PSS & SSS)?

Primary and secondary synchronization signals (PSS & SSS) in LTE Cell synchronization is the very first step when UE wants to camp on any cell. From this, UE acquires physical cell id (PCI), time slot and frame synchronization, which will enable UE to read system information blocks from a particular network.

What is the difference between SSS and PSS symbols?

SSS symbols are also located in the same subframe of PSS but in the symbol before PSS as shown in the figure(yellow squares). From SSS, UE is able to obtain physical layer cell identity group number (0 to 167). Using physical layer identity and cell identity group number, UE knows the PCI for this cell now.

What does SSS stand for?

Primary synchronization signal (PSS) Secondary synchronization signal (SSS) UE uses the Synchronization Signals to: Achieve radio frame, subframe, slot and symbol synchronization in the time domain