In 5G, One NR Resource Block (RB) contains 12 sub-carriers in frequency domain similar to LTE . In LTE resource block bandwidth is fixed to 180 KHz but in NR it is not fixed and depend on sub-carrier spacing.24 Nis 2019
Read moreHow many subframes are there in an LTE frame?
The basic type 1 LTE frame has an overall length of 10 ms. This is then divided into a total of 20 individual slots. LTE Subframes then consist of two slots – in other words there are ten LTE subframes within a frame.
Read moreHow many symbols are in a LTE frame?
Each LTE symbol will be roughly of 67 microseconds and there will be 7 symbols per slot, 14 symbols per subframe and 140 symbols per radio frame . The number & duration of symbols will change, if the system is configured to extended cyclic prefix type.
Read moreWhat is frame length in LTE?
LTE supports two frame lengths, 5 ms and 10 ms . Each 10 ms interval contains 10 subframes, which are labeled in the Table as D for downlink transmission, U for uplink transmission, and S for special subframe. The special subframe contains the turnaround time between downlink and uplink transmissions.
Read moreWhy is the LTE frame 10ms?
So a LTE radio frame consists of 10 subframes (i.e. total 1 ms) in time domain & 72 subcarriers (i.e. total 1080 Khz) in freq domain. Why 15kHz? It is because UMTS and LTE have the same clock timing !
Read moreWhich modulation technique is used in 4G?
LTE uses the popular orthogonal frequency division multiplex (OFDM) modulation scheme. It provides the essential spectral efficiency to achieve high data rates but also permits multiple users to share a common channel.
Read moreWhat is DFT spread OFDM?
The DFT-spread OFDM is a form of single-carrier technique that possesses almost all advantages of the multicarrier OFDM technique (such as high spectral efficiency, flexible bandwidth allocation, low sampling rate, and low-complexity equalization).
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