What is SSB subcarrier offset?

What is SSB subcarrier offset?

SSB resource mapping in frequency domain The position of SSB in frequency domain is identified by higher-layer parameter offsetToPointA and by the higher-layer parameter ssb-SubcarrierOffset. The quantity Kssb is the subcarrier offset from subcarrier 0 in SSB common resource block to subcarrier 0 of the SS/PBCH block.

How SSB subcarrier spacing is determined?

– As the SSB always occupies 20 RBs and there are 12 subcarriers in each RB, there are a total of 240 subcarriers. So, the bandwidth occupied by SSB = 240 * subcarrier spacing. For instance, 15 kHz SCS leads to 240*15 kHz = 3.6 MHz and 30 kHz SCS leads 240*30 kHz = 7.2 MHz and so on.

What does SSB mean in 5G?

Synchronization Signal Block
In 5G NR, Synchronization Signal Block (SSB) includes PSS, SSS and PBCH and its location compared to LTE is completed different.

How is SSB frequency calculated in 5G?

5G NR GSCN (SSB FREQUENCY) Calculator

1. Enter the 5G NR GSCN*
2. M (0 – 3000) MHz.
3. Range of N (0 – 3000) Mhz.
4. Range of N (3000 – 24250) Mhz.
5. Range of N (24250 – 100000) Mhz.
6. Frequency (0 – 3000) Mhz.
7. Frequency (3000 – 24250) Mhz.
8. (3000 – 24250) Mhz 16 Drop.

What is SS block in 5G?

SS Block(SSB) stands for Synchronization Signal Block and in reality it refers to Synchronization/PBCH block because Synchnronization signal and PBCH channel are packed as a single block that always moves together.

What is Layer 3 in 5G?

5G-NR Layer 3 (RRC) Functions: Establishment, maintenance, and release of an RRC connection between the UE and NG-RAN including Addition, modification, and release of carrier aggregation, Addition, modification, and release of Dual Connectivity in NR or between E-UTRA and NR.

What is Coreset in 5G?

In 5G NR, CORESET is known as Control Resource Set. It is a set of physical resources within a specific area in Downlink Resource Grid and used to carry PDCCH (DCI). Frequency allocation in a CORESET configuration can be contiguous or non-contiguous.

What is mini slot in 5G?

This is known as “mini-slot” transmission. This facilitates very low latency for critical data communication as well as minimizes interference to other RF links. Mini-slot helps to achieve lower latency in 5G NR architecture. Table below mentions typical fixed slots used in a 5G NR frame structure.

What is AMF in 5G?

With the functionality of the 4G Mobility Management Entity (MME) now decomposed, the 5G Core Access and Mobility Management Function (AMF) receives all connection and session related information from the User Equipment (UE) (N1/N2) but is responsible only for handling connection and mobility management tasks.

Is RRC a Layer 3?

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.

What should the BFO be for a SSB signal?

In practice, this means that for a SSB signal to sound right, your receiver’s BFO frequency needs to be very close to the (suppressed) carrier frequency of the transmitter.

How to determine the SSB and coreset # 0?

The complete SSB and CORESET#0 shall be within the carrier’s channel bandwidth. 2. The SSB centre frequency (SSref) shall be on the synchronisation raster. 3. The SSB shall be kept as close as possible to the carrier’s lower edge centre frequency.

How is the SSB-subcarrieroffset signalled in the MIB?

The IE field ssb-SubcarrierOffset is signalled in the MIB. Set to the index associated with the selected Offset RBs value in the applicable table, 13-1 to 13-10, in TS 38.213 [22]. The IE field controlResourceSetZero is signalled in the IE pdcch-ConfigSIB1 in the MIB.

How is the SSB index of a wave determined?

ii) Each SSB can be identified by a unique number called SSB index. iii) Each SSB is transmitted via a specific beam radiated in a certain direction. iv) Multiple UEs are located at various places around a gNB. v) UE measures the signal strength of each SSB it detected for a certain period (a period of one SSB Set).