Wireless Medium Scheduler for Coexisting Network Interference
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Solution Overview
Problem
Interference issues arise in wireless devices due to the coexistence of different wireless standards that occupy adjacent or overlapping portions of the wireless spectrum, leading to inefficient utilization of the wireless medium.
Innovation Solution
A wireless device equipped with multiple transceivers and a scheduler that temporarily grants access to the wireless medium based on specific packet indications, allowing one transceiver to relinquish access to enable another transceiver to communicate, without informing other devices on the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless transceivers operate simultaneously on adjacent or overlapping frequency bands, then wireless communication functionality is enhanced, but interference between networks increases and channel utilization deteriorates
Solution Approach 1:
The patent introduces a scheduler as an intermediary component that manages and coordinates access to the wireless medium between multiple transceivers operating on different standards. The scheduler receives packets from multiple transceivers, determines which transceiver should access the medium at any given time, and controls the timing of transmissions to prevent interference while maintaining functionality of all wireless interfaces
2Object-affected harmful factors
If a transceiver is granted exclusive access to the wireless medium, then interference is reduced, but channel utilization efficiency deteriorates due to idle time when the transceiver has no data to transmit
Solution Approach 1:
The patent implements dynamic allocation of wireless medium access rights. Instead of static exclusive access, the scheduler continuously monitors the status of multiple transceivers and dynamically grants access to whichever transceiver currently has data to transmit. This dynamic approach allows the system to adapt to changing traffic conditions, reducing idle time while maintaining interference avoidance through controlled access switching
Solution Approach 2:
The scheduler ensures continuous useful action on the wireless medium by rapidly switching between transceivers based on their transmission needs. When one transceiver finishes its transmission or has no data to send, the scheduler immediately grants access to another transceiver that has pending data, thereby eliminating idle time and maintaining continuous productive use of the wireless channel
Data Source
AI summary
A wireless device comprises a first wireless transceiver configured for communication via a first wireless network, a second wireless transceiver configured for communication via a second wireless network; and a scheduler that controls which of the first and second transceivers is granted access to a wireless medium at a given time. When the first wireless transceiver has been granted access to the wireless medium by the scheduler and the first wireless transceiver receives a packet via the first wireless network, the scheduler temporarily grants the second wireless transceiver access to the wireless medium based on the packet indicating that first wireless transceiver is not to use the wireless medium for a period of time.