top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

How to determine whether a slot is having 7 symbols(for normal CP) or 6 symbols(for extended CP)?

+2 votes
382 views

I know a slot will be of 0.5ms and useful symbol duration is 66.67micro sec. And if I divide them i.e (0.5ms)/(66.67 micro sec) the result will be 7.49. Can i assume it as normal symbol?? If so what will be the similar calculation for extended symbol??

posted Oct 4, 2016 by Bhagyashree R

Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button

Similar Questions
+8 votes
How to know whether a eNodeB Cell was configured with 15kHz or 7.5kHz

For eMBMS, there are 2 kinds of subcarrier configurations, 15kHz and 7.5kHz, however, I found that there is no information in broadcast information(MIB/SIB) to tell me which kind of cell the target cell is.

Does anyone know how to find the subcarrier configuration of eMBMS in LTE?

+5 votes
How the Symbols sent in a slot with perfect timing in LTE ???

Each carrier in LTE is 15khz so in a calculation i found that useful symbol time = 1/15khz = 66.6 mircosec

wrt to this
Each symbol duration is calculated like this
Normal Cyclic Prefix length = 4.69 microsec --- so each symbol in this = 66.6 + 4.69 = 71.29 microsec
Extended Cyclic Prefix length = 16.67 microsec ----so each symbol in this = 66.6 + 16.67 = 83.27 microsec

So Normal cyclic prefix Slot (7 symbols) duration = 71.29 * 7 = 499.03 microsec(0.49903 millis)
and Extended cyclic prefix Slot (6 symbols) duration = 83.27 * 6 = 499.63 microsec (0.49963 millis)

But slot duration is fixed as 0.5 ms ...

So does this slight difference creates any problem ???
How real time it works ???

+2 votes
LTE: What is Ultra Extended CP and use of it ?

What is the Ultra extended CP and use of it ?
How it is better than normal cyclic and extended cyclic prefix ?

+3 votes
LTE: Why PSS and SSS are transmitted on the last and second last OFDM symbols of slot zero ?

I know that fact PSS and SSS are transmitted at slot zero of first and fifth sub frames of a radio frame. But what is the reasoning behind it to transmit at these particular location ? Is any calculation behind it ?

...