Small Cell Controller Traffic Switching and Aggregation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As the density of small cells increases in geographic areas, existing methods for managing and optimizing wireless data traffic between cellular and noncellular networks become inefficient, leading to interference and suboptimal performance.
Innovation Solution
A small cell controller is introduced, equipped with cellular and noncellular interfaces, and an analyzer that determines data transfer between networks and allocates bandwidth dynamically based on current needs, optimizing communication paths between licensed and unlicensed bands to manage interference and enhance data offloading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If small cell density is increased to improve coverage and capacity, then wireless service quality improves, but interference between small cells increases and performance deteriorates
Solution Approach 1:
The patent implements dynamic bandwidth allocation and traffic switching between licensed and unlicensed bands based on real-time channel conditions and interference levels. The system continuously adjusts resource allocation to adapt to changing interference environments, allowing small cells to maintain optimal performance despite increased density.
Solution Approach 2:
The system changes operational parameters by dynamically switching traffic between different frequency bands (licensed and unlicensed) and adjusting bandwidth allocation. This parameter adjustment allows the network to overcome interference issues by routing traffic through less congested bands while maintaining high service quality.
2Device complexity
If static bandwidth allocation is used to simplify network management, then device complexity is reduced, but bandwidth utilization efficiency deteriorates
Solution Approach 1:
The system implements self-service through automated bandwidth allocation and traffic switching mechanisms. The small cell controllers autonomously monitor channel conditions, determine optimal bandwidth distribution, and switch traffic between bands without requiring complex manual configuration or centralized control, thereby maintaining low management complexity while achieving high efficiency.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system continuously monitors bandwidth utilization and channel conditions, then automatically adjusts allocation in response. This closed-loop control enables efficient bandwidth utilization while keeping management simple, as the system self-regulates based on real-time performance data.
3Device complexity
If all wireless traffic is routed through cellular networks to simplify network architecture, then network structure is simplified, but traffic congestion increases and performance deteriorates
Solution Approach 1:
The patent segments traffic routing by creating separate pathways through licensed and unlicensed bands. Instead of funneling all traffic through a single cellular network path, the system divides traffic flow and routes different portions through different bands, effectively segmenting the network paths to increase overall capacity while maintaining architectural simplicity.
Solution Approach 2:
The system merges cellular and non-cellular network resources into a unified traffic handling architecture. By combining the licensed band cellular infrastructure with unlicensed band wireless access points, the system creates a hybrid network that maintains simple end-user connectivity while significantly increasing total traffic handling capacity through resource aggregation.
Data Source
AI summary
A small cell controller for switching and aggregating wireless data between a cellular network and a noncellular network is disclosed. The small cell controller may include a cellular interface to communicate data with the cellular network, a noncellular interface to communicate data with the noncellular network, and an analyzer configured to determine whether a portion of the wireless data may be transferred from the cellular network to the noncellular network, and determine a first portion of the noncellular network to be allocated to the portion of the wireless data when the portion of the wireless data may be transferred.