Wireless Transceiver Coordination via Interference Scheduling
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Solution Overview
Problem
In wireless communication systems, transceivers operating under different standards, such as IEEE 802.11 and IEEE 802.16, often interfere with each other's operations, particularly during scanning or receiving operations, due to overlapping frequency ranges and signal strengths.
Innovation Solution
A Communication Manager (CM) is implemented to manage and control the operations of multiple transceivers by determining channel spacing and signal strength, requesting a no-transmission mode when interference is detected, allowing one transceiver to perform scanning or receiving while the other transmits, and adjusting operational modes based on priority levels and signal reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple transceivers operate simultaneously under different wireless standards, then device functionality and connectivity are improved, but mutual interference between transceivers occurs
Solution Approach 1:
A coordination module acts as an intermediary between multiple transceivers to manage their operations. The coordination module receives operation requests from different transceivers, determines interference relationships, and schedules transmission opportunities to prevent mutual interference while maintaining device functionality across multiple wireless standards.
Solution Approach 2:
The system dynamically adjusts transceiver operations based on real-time interference conditions. The coordination module continuously monitors operation requests, determines whether interference would occur, and dynamically schedules transmissions by granting or denying access to the wireless medium based on current system state and interference predictions.
2Productivity
If a transceiver transmits wireless signals, then communication throughput is improved, but interference with scanning or receiving operations of other transceivers occurs
Solution Approach 1:
The coordination module performs preliminary scheduling of transmission opportunities before actual data transmission occurs. By evaluating operation requests in advance and determining interference relationships beforehand, the system can grant transmission rights only when no scanning or receiving operations are scheduled, thus preventing interference while maintaining throughput.
Solution Approach 2:
The system implements periodic scheduling of transmission opportunities for different transceivers. The coordination module cycles through operation requests, granting transmission access in periodic time slots when interference is determined to be absent, thereby ensuring both throughput maintenance and protection of scanning/receiving operations.
Data Source
AI summary
Some embodiments of the invention provide devices, systems and methods of coordination among wireless transceivers. For example, an apparatus in accordance with an embodiment of the invention includes first and second wireless transceivers, wherein the first wireless transceiver is to enter a non-transmission mode for a pre-defined time period in response to an indication from the second wireless transceiver, and wherein one of the first and second wireless transceivers is to operate in a synchronous network and the other of the first and second wireless transceivers is to operate in a non-synchronous network.