5G Synchronization Signals

How is the DMRS for PBCH transmitted in relation to the PBCH ?

• on same time frequency resources as the PBCH data

• In the same OFDM symbol as the PBCH data

• In a separate OFDM symbol after the PBCH data

• On different time frequency resources than the PBCH data

How many PCI's are suported by LTE and 5G NR respectively ?

• 1007 & 503

• 1008 & 504

• 504 & 1008

• 503 & 1007

which symbol did secondary synchronisation signal occcpy in SS/PBCH block if symbols are numbered from 0,1,2,3 ?

• 1

• 2

• 3

• 0

Which modulation technique and channel coding used by PBCH respectively ?

• 16-QAM and Polar coding

• QPSK and LDPC

• QPSK and polar coding

• 64-QAM and LDPC

which of the following subcarriers spacings are used above 6GHz for SS/PBCH block.

• 15KHz , 30 KHz

• 60 KHz ,120 KHz

• 120 KHz ,240 KHz

• 15 KHz ,120 KHz

Location of resource elements for DMRS-PBCH depends on which rule ?

• PCI mod 3

• PCI mod 5

• PCI mod 2

• PCI mod 4

what information do we get after decoding SSS. Select all that apply

• Subframe boundary

• Radio frame boundary

• N1 id

• N2 id

We get ............after decoding PBCH and it contains parameters requires to decode...................

• MIB,SIB1

• SIB2 , MIB

• SIB1 ,MIB

• SIB,MIB

which of the following statements are true about DMRS for PBCH in 5G NR is true ? Select all that apply

• It is transmitted on every OFDM symbol in subframe

• It is used for channel Estimation & Equalisation

• It carries the MIB

• It uses dedicated reference signal resource

Order of bits changes during Scrambling

• False

• True