Wireless Device Interference Announcement for Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems, such as Wi-Fi, face interference from coexisting devices like Bluetooth transmitters, which can unpredictably affect throughput due to periodic or aperiodic activity, leading to errors and reduced data rates.
Innovation Solution
A wireless device generates a frame with interference information indicating the presence and nature of interference, including activation status, periodicity, and bandwidth impact, and transmits this information using a compatible IEEE 802.11 protocol or short-range protocols to announce interference to other devices, allowing for optimized transmission adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless transceivers operate simultaneously in a device, then device functionality and communication versatility are improved, but wireless communication reliability deteriorates due to internal interference between transceivers
Solution Approach 1:
The patent announces interference information in advance through beacon frames, probe response frames, or association request/response frames before actual interference occurs. This preliminary announcement allows receiving devices to prepare for potential interference by adjusting their transmission parameters, thereby maintaining communication reliability while allowing multiple transceivers to coexist
Solution Approach 2:
The patent implements a feedback mechanism where devices transmit interference information to peers, and peers respond with adjusted transmission parameters. This feedback loop enables dynamic adaptation to interference conditions, resolving the contradiction between having multiple transceivers and maintaining communication reliability
2Reliability
If interference information is transmitted frequently to announce interference sources, then communication reliability is improved, but network overhead and transmission resource consumption increase
Solution Approach 1:
The patent uses periodic beacon frames that are already transmitted at regular intervals to carry interference information. By embedding interference announcements in these periodic frames rather than sending separate frequent announcements, the patent maintains communication reliability while avoiding additional transmission overhead and energy consumption
3Reliability
If transmission power is increased to overcome interference, then signal quality is improved, but interference to other devices and energy consumption increase
Solution Approach 1:
The patent changes transmission parameters dynamically based on announced interference information. Instead of uniformly increasing power, devices adjust modulation schemes, coding rates, or timing parameters according to the specific interference conditions announced by peers, thereby maintaining signal quality while minimizing additional interference and energy consumption
Data Source
AI summary
Embodiments of a method and apparatus for wireless communications are disclosed. In an embodiment, a wireless device includes a controller configured to generate a frame that includes interference information indicating an existence or an occurrence of a wireless communications interference and a wireless transceiver configured to transmit the frame through an antenna.