Co-Located Coexistence Radio Manager for Multi-Radio Interference
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Solution Overview
Problem
The integration of multiple wireless communications services in mobile electronic devices, such as WiMAX, WiFi, and Bluetooth, leads to signal interference due to overlapping or adjacent frequency bands, which degrades transmission performance and requires a method for coordinating their operations to enhance reliability.
Innovation Solution
A Co-located Coexistence (CLC) method is implemented, where a CLC Radio Manager coordinates the operations of co-located radio modules by detecting activities, collecting information, and generating management messages to support multi-radio coexistence, including pre-negotiated periodic absences and traffic pattern management to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless communications services (WiMAX, WiFi, Bluetooth) are integrated in a mobile electronic device, then the functionality and versatility of the device are improved, but signal interference occurs due to overlapping or adjacent frequency bands, degrading transmission performance
Solution Approach 1:
The patent segments the operation of different wireless communication services by dividing time into specific intervals and assigning different services to different time slots. The CLC Radio Manager coordinates these segmented operations to prevent simultaneous transmission that would cause interference, while maintaining overall system functionality.
Solution Approach 2:
The patent implements periodic action by establishing regular transmission intervals and duty cycles for different wireless services. Services are activated and deactivated in periodic patterns, allowing them to share the frequency spectrum systematically without continuous simultaneous operation, thus reducing interference while maintaining versatility.
2Productivity
If simultaneous transmission and reception by different wireless communications services are allowed, then the productivity and efficiency of the device are improved, but transmission interference is caused, degrading reliability
Solution Approach 1:
The patent applies preliminary action by having the CLC Radio Manager detect and predict the operational status of different radio modules in advance. Management messages are generated and transmitted beforehand to coordinate upcoming transmissions, allowing the system to prepare for potential interference scenarios before they occur, thus maintaining productivity while ensuring reliability.
Solution Approach 2:
The patent implements feedback mechanisms where the CLC Radio Manager continuously monitors the transmission and reception status of different wireless services, detects interference conditions, and dynamically adjusts the operation of radio modules based on this feedback. This closed-loop control maintains efficiency by adapting to real-time conditions while preventing interference.
3Reliability
If a CLC Radio Manager is implemented to coordinate operations of co-located radio modules, then transmission reliability is enhanced by reducing signal interference, but device complexity increases
Solution Approach 1:
The CLC Radio Manager is designed as a universal coordination mechanism that handles multiple types of wireless communication services (WiMAX, WiFi, Bluetooth) through a single integrated management system. Rather than implementing separate coordination mechanisms for each service pair, this multi-functional manager reduces overall system complexity by providing a unified approach to interference management.
Solution Approach 2:
The CLC Radio Manager acts as an intermediary between different radio modules, mediating their operations to prevent interference. This central coordinator simplifies the system architecture by providing a single point of control rather than requiring complex peer-to-peer coordination between multiple radio modules, thus enhancing reliability while managing complexity.
Data Source
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AI summary
A communications apparatus is provided. A first radio module provides a first wireless communications service and communicates with a first communications device in compliance with a first protocol. A second radio module provides a second wireless communications service and communicates with a second communications device in compliance with a second protocol. A Co-Located Coexistence radio manager detects activities of the first radio modules, obtains a first traffic pattern describing downlink and/or uplink traffic allocations of the first radio module from the first radio module, and generates a second traffic pattern of the second radio module according to the first traffic pattern to coordinate operations of the first and second radio modules. The second traffic pattern describes recommended downlink and/or uplink traffic allocations to a plurality of subframes for the second radio module, and each sub-frame defined by the second protocol includes Orthogonal Frequency Division Multiplexing symbols.