Wireless Device Dynamic Resource Reservation for Coexistence
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Solution Overview
Problem
Interference between different wireless technologies operating on the same device, such as WLAN and WiMAX, leads to coexistence problems due to their proximity in frequency bands, resulting in potential blocking and reduced performance.
Innovation Solution
A wireless device is equipped with a receiver, network activity monitor, and network access scheduler to detect reservation messages and schedule transmissions to minimize interference by reserving resources for one network, allowing coexisting networks to operate without conflict.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless device reserves resources for one network to prevent interference, then coexistence between networks is improved, but resource utilization efficiency deteriorates due to idle reserved resources
Solution Approach 1:
The patent implements dynamic resource reservation where the reserved resources are not statically allocated but dynamically shared with other networks when not in use. The wireless device monitors whether reserved resources are actively being used and allows other networks to access these resources during idle periods, transforming a static reservation system into a dynamic sharing mechanism that adapts to real-time network conditions.
Solution Approach 2:
The patent enables other networks to temporarily 'borrow' or recover unused reserved resources for their own use. When the primary network does not need its reserved resources, those resources are made available to secondary networks, effectively discarding the idle reservation state and recovering the underlying physical resource for productive use by other networks.
2Productivity
If a wireless device transmits on a network during a reserved interval, then resource utilization is improved, but interference with the coexisting network deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the wireless device continuously monitors network conditions and transmission status. Based on this feedback, the device intelligently determines whether to transmit during reserved intervals or allow other networks to use the resources, adjusting its behavior in real-time to balance resource utilization with interference prevention.
Solution Approach 2:
The system dynamically adjusts transmission permissions during reserved intervals based on actual network conditions. Rather than rigidly preventing all transmissions during reserved periods, the system adaptively allows transmissions when they will not cause harmful interference, transforming a static protection mechanism into a dynamic decision-making process.
Data Source
AI summary
A system and method for using reserved resources in coexisting wireless networks. In one embodiment, a wireless apparatus includes a receiver, a network activity monitor, and a network access scheduler. The receiver is configured to identify a received network reservation message that inhibits access to a first wireless network for an interval defined in the reservation message. The network activity monitor is configured to monitor wireless activity on the first wireless network during the interval. The network access scheduler is configured to determine whether the reservation message prevents conflict of the first wireless network with a coexisting wireless network during the interval, and to schedule, based on a determination that the reservation message prevents conflict with the coexisting wireless network, the wireless apparatus to transmit on the first wireless network during the interval to a wireless device other than a wireless device identified in the reservation message.