Prb 5G NR

First it divides resource blocks into multiples of groups. This resource block group is RBG(Resource Block Group) called. The number of resource block in each group varies depending on the system band width. It means RBG size gets different depending on the system bandwidth. … Resource Allocation Type. System BWRBG Size204LTE Resource Allocation Type 0 – ShareTechnote www.sharetechnote.com › html › Handbook_LTE_RAType

In Resource Allocation Type 0, Resource Block assignment information includes a bitmap indicating a set of Resource Block Groups (RBGs) to the scheduled UE. An RBG is a set of consecutive PRBs .

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.

Resource Allocation Type specifies the way in which the scheduler allocate resource blocks for each transmission . Just in terms of flexibility, the way to give the maximum flexibility of resource block allocation would be to use a string of a bit map (bit stream), each bit of which represent each resource block.