What is LTE Frame Structure? Find Out With Mpirical

[@harry_kim6940]

2023.07.23 감사합니다.

[@dm3434]

Thanks for the wonderful knowledge sharing I have one doubt How one complete radio frame can be transmitted over a lower Bandwith system like 1.4/3/5 MHZ As I understand 1 subframe =2 slot; 1slot =1RB ( 12 Subcarrier in frequency domain and 7 OFDM symbol (NCP) time domain ) having a duration of 0.5 ms . So 6 RB = 3ms Now as per your lession one frame=10ms , then how canwe transmit it over 6RB(3ms)/1.4MHz bandwidth ???

[@Mpirical]

When describing bandwidth the term RB (Resource Block) is used, e.g. 6RB’s = 1.4MHz. In the LTE frame, when looking at frequency and time the term PRB (Physical Resource block) is used. PRBs last 0.5ms and occupy 12 subcarriers, i.e 1RB, as such for each RB of bandwidth you get 2 PRBs per 1ms. As an example, a 1.4MHz channel would have 6RB’s bandwidth providing 12PRB’s per 1ms, or 120PRB’s per 10ms frame. Note that sometimes the term “Resource block” identifies 12subcarriers x 1ms, i.e. 2 PRBs.