Common Resource Blocks (CRBs) Common resource blocks are numbered from 0 and upwards in the frequency domain for each subcarrier spacing configuration ‘µ’.5 Kas 2019
Read moreHow is PRB calculated in LTE?
The answer is at the end of this article. Physical Resource Block (PRB) = 2*Resource Block = 12 Subcarriers x 14 OFDM in 1ms . RE can deliver 2, 4, 6, 8 bits in QPSK, 16QAM, 64QAM, 256QAM respectively. If we calculate for 64QAM as 6bits since 256QAM not widely spread (check Samsung S7 in T-Mobile).
Read moreWhat is resource block in LTE?
A resource block (RB ) is the smallest unit of resources that can be allocated to a user . The resource block is 180 kHz. wide in frequency and 1 slot long in time.
Read moreHow are resource blocks allocated in LTE?
In LTE, radio resources are divided into time and frequency resource elements. Resource elements in time axis are divided into number of OFDM symbols and in frequency axis are divided into number of sub-carriers . Resource element (RE) is a smallest resource unit, which occupies a single sub-carrier and an OFDM symbol.
Read moreHow are resource blocks calculated?
For 50 Mbls one has to assign x blocks= (50/100.8)x total no. of resource blocks(100)= one has to assign 50 resource blocks, and in case of 60 Mbls the number of assigned RBs= (60/100.8) 100=60. In one second the transmitted bits will be 50Mbits and 60 Mbits respectively.
Read moreWhich layer actually does HARQ level error correction?
All Answers (2) In general, HARQ is a physical layer protocol, which combines the use of forward error correction (fast, because it does not involve any retransmission) with retransmission request, when the errors are too severe for FEC to correct them.
Read moreWhat is HARQ explain briefly?
Hybrid automatic repeat request (hybrid ARQ or HARQ) is a combination of high-rate forward error correction (FEC) and automatic repeat request (ARQ) error-control . In standard ARQ, redundant bits are added to data to be transmitted using an error-detecting (ED) code such as a cyclic redundancy check (CRC).
Read more