Load balancing is a strategy in which we continually attempt to equalise the network workload across distributed system over different technologies and vendors. Every operator wants to have a network balanced with optimally utilized resources but they end up with unequal distribution of load or traffic.
Normally this is caused by below factors:
- Limited mobility between different vendors and technologies
- Differences in coverage between frequency bands
- Differences in antenna configurations
- Parameter settings
- Different capacity and capabilities for different technologies and cells
- Difficulties to compare load between different technologies
WRAP International offers efficient load balancing over cells covering the same area, which is necessary in order to achieve an optimal spectrum utilization. Methods for load balancing within a certain technology / vendor is usually provided through different features.
Control algorithm dynamically adjust the parameter settings for load balancing, based on statistics from all applicable vendors and technologies, to achieve an optimal load balancing for each sector. This technology is often called C-SON (Centralized Self Organizing Networks), where centralized implies that data is processed in centralized manner, i.e. all technologies and vendors at the same time, as opposed to traditional SON systems that normally only processes data for one vendor and one technology.
With an increased complexity of the telecom networks, where costs for improved capacity increases faster than the revenues, there will be necessary to automise parts of the optimization processes, to achieve an optimal spectrum utilization and to keep operations costs down.
With efficient systems and algorithms for load balancing it is possible to improve the capacity significantly better than through manual optimization work.