Multiradio Controller Timeslot Alignment for Interference Reduction
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Solution Overview
Problem
The integration of multiple radio modems in wireless communication devices often leads to interference and performance degradation due to uncoordinated operation across different wireless communication mediums, particularly when long-range, short-range, and NFC technologies are used simultaneously, causing extraneous interference and intermodulation issues that result in packet loss and retransmissions.
Innovation Solution
A multiradio controller system that synchronizes timeslots across various wireless communication mediums by aligning network-level and device-level timeslots, managing contention periods, and preprocessing message packets to minimize interference and optimize communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radio modems are integrated and operated simultaneously in a wireless communication device, then the functionality and communication coverage are enhanced, but interference and performance degradation occur due to uncoordinated operation
Solution Approach 1:
The patent segments the operation of multiple radio modems into distinct timeslots, allocating specific time periods for each radio modem to operate. This temporal segmentation prevents simultaneous operation of multiple radios, thereby eliminating interference while maintaining the functionality of supporting multiple communication mediums.
Solution Approach 2:
The patent implements dynamic scheduling of radio modem operations, where the multiradio controller continuously monitors and adjusts the operation timeslots based on current communication needs and network conditions. This dynamic approach allows the system to adaptively optimize performance while preventing interference.
2Ease of operation
If radio modems operate without coordinated timeslot alignment, then operational flexibility is maintained, but packet loss and retransmissions increase due to interference
Solution Approach 1:
The patent performs preliminary alignment of timeslots between network-level and device-level schedules before communication operations begin. The multiradio controller pre-calculates and configures the operational schedule to ensure that timeslots are properly synchronized, preventing packet loss from the outset while maintaining operational flexibility through adaptive adjustments.
3Adaptability or versatility
If network-level and device-level timeslots are misaligned, then device autonomy is preserved, but communication efficiency decreases due to interference and packet loss
Solution Approach 1:
The patent implements a feedback mechanism where the multiradio controller continuously monitors communication performance and network conditions, then adjusts the device-level timeslot schedule accordingly. This feedback loop ensures timeslot alignment between network and device levels, optimizing communication efficiency while preserving device autonomy through intelligent, adaptive control.
Data Source
AI summary
A system for managing the operation of a plurality of radio modules (1200), in the same device (100). A controller (600) may receive information pertaining to a plurality of wireless communication mediums being supported by radio modules (1200) in the device. The multiradio controller may formulate an operational schedule for the wireless communication mediums based on this information. Further, a network controller (1202) for a network may provide information related to one or more time periods during which the device may operate. This network information may be received by the device and also considered by the multiradio controller, which may further request that one or more of these time periods be altered, in the device, so as to align with the operational schedule.