Base Station Backhaul Distribution Module Traffic Management
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Solution Overview
Problem
Communication networks face challenges in efficiently distributing traffic across multiple backhaul connections due to varying capacities, robustness, and operational costs, leading to potential congestion and quality of service issues.
Innovation Solution
A communication station with a transceiver, multiple backhaul interface modules, and a backhaul distribution module that monitors bandwidth demand and distributes data based on application information, switching traffic from a primary to an alternate backhaul connection when demand exceeds capacity, utilizing a decision function that considers financial costs, delay, and computational resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traffic is distributed across multiple backhaul connections, then bandwidth utilization is improved, but device complexity increases due to the need for monitoring and decision functions
Solution Approach 1:
The base station autonomously monitors backhaul quality metrics and automatically switches between backhaul connections based on predefined thresholds and decision functions, eliminating the need for manual intervention or complex external control systems
Solution Approach 2:
The system continuously monitors quality metrics from backhaul connections and uses this feedback to dynamically adjust traffic distribution decisions, creating a closed-loop control system that adapts to changing network conditions
2Device complexity
If a single primary backhaul connection is used, then device complexity is minimized, but reliability deteriorates when the primary backhaul experiences congestion or failure
Solution Approach 1:
The system pre-configures alternate backhaul connections and establishes quality thresholds before failures occur, so that when the primary backhaul degrades or fails, traffic can immediately be redirected to prepared alternate paths without service interruption
Solution Approach 2:
The system dynamically changes operational parameters (traffic routing decisions) based on monitored quality metrics, switching from primary to alternate backhaul connections when quality thresholds are breached, thereby maintaining service reliability under varying conditions
3Device complexity
If traffic distribution decisions are made without application information, then device complexity is reduced, but quality of service deteriorates because different applications have different bandwidth requirements
Solution Approach 1:
The system applies different quality standards and routing decisions to different application types (e.g., real-time video versus bulk data transfer), tailoring the backhaul selection criteria to the specific requirements of each application rather than using a uniform approach
Data Source
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AI summary
A communication station, such as a base station or access point, has multiple backhaul options and distributes backhaul data between the available backhaul options. The communication station includes a transceiver for transmitting and receiving data with user equipments, multiple backhaul interface modules, and a backhaul distribution module arranged for monitoring demand for backhaul bandwidth and distributing data over the backhauls based on the demand for backhaul bandwidth. Additional modules for user data and control plane processing may be included with the user/control distinction used in distributing data over the backhauls. The backhaul options may include a preferred backhaul and an alternate backhaul. Distributing data over the backhauls may be based, for example, on applications associated with the data, financial cost, delay, robustness, computational resources, and/or additional security associated with using a particular backhaul.