LTE: What does HCS (Hierarchical Cell Structure) deployment ?

Question

I went through 36.331 spec, there are various terms such as Srxlev, Q-hyst and so on are used.
Can someone please give a brief overview of all the terms used during the cell selection and cell re-selection procedure ?

Answer 1

it is related to HetNet architecture. In HetNet deployment, macro, pico and femto etc can be deployed with the same frequency bandwidth. Some features (like Absolute blank sub frame, Inter cell interference co-ordination) used to avoid interference among them and to improve the cell edge throughput.