Can Packet Buffer Queue size impact the overall traffic load on a system, if yes then please explain?

Question

For example -

Case A - It consumes less signalling load:

Cell X - Band1 - PCI 22
Cell X - Band2 - PCI 22

Case B - It consume more signalling load:

Cell X - Band1 - PCI 22
Cell X - Band2 - PCI 222

Answer 1

ENodeBs have a Active Queue Management system for Uplink management ( basically a scheduling algorithm) which is more adaptive to different bit rates of LTE compared to the PDCP implemented in LTE UEs , PDCP is simply a delay based queue management protocol from 3GPP.

The primary purpose of this is to achieve and maintain a high throughput and low end to end delay.
So to answer your question Yes it does impact the the traffic load.