Hello friends.
I noticed in an Ericsson LTE network that the load balancing parameter is set to 0 from 700 MHz cells to AWS/1900, but it is set to 1 from 1900/AWS to 700 MHz.
Why is load balancing allowed from high band to low band but not the other way around?
Hello, there is a load balancing feature available between bands.
What is the deployed bandwidth and PRB utilization for each channel?
In the past, we disabled load balancing from high to low band and saw significant improvements.
I’m not sure about your network situation, but if the low band has load issues, it ideally shouldn’t be enabled.
Maybe a few priority cells have these settings to avoid congestion, but ideally, it should be enabled both ways.
The 700 MHz band, being a low-frequency band, typically provides better coverage due to its ability to penetrate buildings and travel longer distances. Conversely, 1900 MHz bands, which are higher-frequency, generally offer higher capacity but with more limited coverage. Enabling load balancing from high-frequency bands 1900 MHz to low-frequency bands 700 MHz ensures users in areas with weaker signal strength or limited coverage benefit from the robust characteristics of the 700 MHz band. This helps maintain a consistent user experience, particularly in challenging coverage areas.
However, restricting load balancing from the 700 MHz band to the 1900 MHz band seems a little bit strange 
. It might be a strategic decision to prevent overloading the higher-frequency bands, which could already be handling a significant traffic load in areas with strong coverage. Alternatively, this restriction might aim to preserve the 700 MHz band’s coverage advantage for users who rely on it most.
I recommend: consulting the Optimizer responsible for this setting to clarify the rationale behind the configuration. Before making any adjustments, conduct a thorough analysis of the capacity and radio conditions in the targeted area. Based on the findings, you could consider a trial adjustment to evaluate if it results in improved performance.
