Mobile Communication System Interference Offload
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Solution Overview
Problem
Conventional cellular communication networks face significant interference issues due to the increasing density of user terminals and the overlap of different networks, including cellular and non-cellular systems, which existing methods like Dynamic Frequency Selection and data offloading techniques fail to adequately address, especially when cellular user terminals are involved.
Innovation Solution
A mobile communication system that includes a base station, a cellular user terminal, a controller for non-cellular networks, and an interference measurement component, which measures interference and transmits offload messages to either the cellular user terminal or the controller when interference exceeds a threshold, requesting a connection change to reduce interference by offloading cellular user terminals to non-cellular networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cellular networks increase network density to accommodate more user terminals, then network capacity and coverage are improved, but interference between cellular and non-cellular networks increases
Solution Approach 1:
The patent extracts cellular user terminals from the cellular network and relocates them to non-cellular networks when interference is detected. The base station identifies interfering terminals and sends offload messages to redirect their traffic to non-cellular networks, thereby removing the harmful interference source while maintaining network capacity.
Solution Approach 2:
The base station acts as an intermediary between cellular and non-cellular networks. It monitors interference levels, identifies problematic terminals, and mediates the offloading process by sending offload messages to redirect traffic, thus managing the interaction between different network types to reduce interference.
2Object-affected harmful factors
If Dynamic Frequency Selection techniques are used to reduce Wi-Fi network interference, then some interference reduction is achieved, but interference from cellular user terminals in non-cellular networks is not addressed
Solution Approach 1:
The base station performs multiple functions: it serves as a traditional cellular base station while also acting as an interference monitoring station and traffic routing decision-maker. It monitors both cellular and non-cellular network interference and makes intelligent routing decisions, providing universal functionality across different network types.
Solution Approach 2:
The system dynamically adjusts traffic routing based on real-time interference conditions. The base station continuously monitors interference levels and dynamically offloads terminals to non-cellular networks when needed, while maintaining flexibility to switch back when interference conditions improve, ensuring adaptability to changing network environments.
3Object-affected harmful factors
If cellular user terminals are offloaded to non-cellular networks, then interference is reduced, but device complexity increases due to multi-network support requirements
Solution Approach 1:
The cellular user terminals autonomously handle the offloading process by receiving offload messages from the base station and independently establishing connections with non-cellular networks. The terminals themselves perform the routing decision and connection management, reducing the complexity burden on the network infrastructure.
Data Source
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AI summary
The invention relates to a mobile communication system (9) comprising a base station (1), a cellular user terminal (11), a controller (21) and an interference measurement component (41). The base station (1) is coupled to a cellular communication network. The cellular user terminal (11) is configured to transmit wireless signals to the base station (1) and to receive wireless signals from the base station (1). The controller (21) is configured to control at least one non-cellular network and to receive wireless signals from at least one non-cellular user terminal (11). The interference measurement component (41) is configured to measure interference caused by the cellular user terminal (11) and/or interference experienced by the cellular user terminal (11). The base station (1) is configured to transmit an offload message to the cellular user terminal (11) and/or the controller (21) when the interference measured by the interference measurement component (41) exceeds a certain threshold. The offload message comprises a request for the cellular user terminal (11) to connect to the controller (21) and/or a request for the controller (21) to connect to the cellular user terminal (11). The offload message further comprises an identifier identifying the non-cellular network, an identifier identifying the controller (21) and/or an identifier identifying the cellular user terminal (11). The invention further relates to a base station (1), a cellular user terminal (11) and a controller (21) for use in this system (9) and the methods performed by these devices.