How to get BW , SFN, PHICH related information from decoded(40 bit) PBCH frame?

Question

Hi
I am using one software where I can see decoded value (24+16 CRC= 40 bit) of PBCH data.
Now I want to map these bit wise values to actual information like SFN,PHICH ,System BW. How can I do that?

Thanks.

Answer 1

Hi shruthi,

First 3 bit is BW, Next 3 bit is PHICH info ( 1 bit is normal or extended , next two is Ng value), next 8 bit is SFN and remaining 10 is reserved for future use.

Comments

Thanks For answer.
But I would like to know more about how to identified decoded bits.
presently I found it out like this.(40bits)
From MSB to LSB:
1st 3 bits for System B.W
next 3 bits for PHICH Information
next 8 bits for SFN
next 10 bits reserved
last 16 bits -CRS

It would be great if anyone knows any specification where I can do mapping of this decoded information.