Modified Beacon Bandwidth Access Control
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Solution Overview
Problem
In wireless network communication systems, the conventional method of calculating transmission budget based on immediate prior transmission activity leads to communication back-ups, especially for newly active stations, as it favors stations that successfully transmitted in the last interval, resulting in an inversely related queue of stations awaiting access.
Innovation Solution
The method involves calculating the transmission budget based on a larger history of prior inter-beacon transmission intervals, broadcasting this information in modified beacon formats to account for more stations' activities, thereby reducing back-ups by using a reserve of available bandwidth and providing differential access treatment for currently transmitting stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission budget is calculated based on immediate prior transmission activity, then stations that successfully transmitted in the last interval gain larger transmission limits, but this creates communication back-ups for newly active stations and results in an inversely related queue of stations awaiting access
Solution Approach 1:
The patent applies preliminary action by calculating transmission budget based on prior transmission activity before new stations attempt to access the network. By pre-establishing transmission limits based on historical data, the system prevents back-ups before they occur, allowing new stations to enter the network without creating queues of waiting stations.
Solution Approach 2:
The patent implements dynamics by making transmission limits adaptive rather than static. Transmission budget is dynamically calculated based on actual prior transmission activity, allowing the system to adjust allocation automatically. This dynamic approach ensures that stations with successful prior transmissions receive appropriate priority while preventing new stations from creating back-ups.
2Reliability
If transmission limits are increased for stations that successfully transmitted in the last interval, then bandwidth access is favored for active stations, but newly active stations are placed at a competitive disadvantage
Solution Approach 1:
The patent applies local quality by providing different transmission limits to different types of stations based on their specific characteristics. Stations with successful prior transmissions receive larger transmission limits to ensure reliable bandwidth access, while new stations receive appropriate limits based on their entry timing. This localized differentiation maintains both reliability for active stations and fairness for new stations.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting transmission limits based on station type and prior activity. The transmission budget parameter is changed from a fixed value to a calculated value that reflects actual network conditions. This allows the system to adapt transmission parameters to different station scenarios, maintaining both reliability and adaptability.
3Measurement precision
If beacon transmissions occur at regular intervals, then network status is periodically updated, but the shorter the interval between beacons, the more likely communication back-ups occur
Solution Approach 1:
The patent applies feedback by using beacon transmissions to communicate network status information back to stations. By periodically updating transmission budget information through beacons, the system enables stations to adjust their transmission limits based on current network conditions. This feedback mechanism maintains accurate network status information while preventing back-ups through proactive budget adjustment.
Data Source
AI summary
Apparatus and a method employable in a wireless communication network for managing, among plural communication stations in a group of such stations, bandwidth-sharing of available, unused bandwidth. Implementation and practice of the invention involve (a) establishing a pattern of periodic beacon transmissions having a defined first time spacing between time-next-adjacent transmissions, which transmissions are designed, nominally, to convey bandwidth-availability (transmission-budget) announcements to stations in the group, (b) from within this pattern, choosing a sub-pattern of selected, periodic beacon transmissions having a defined second time spacing between time-next-adjacent, chosen sub-pattern transmissions, which second time spacing encompasses a predetermined number of the beacon transmissions having the mentioned first time spacing, and then (c) utilizing only the selected beacon transmissions in this sub-pattern to convey the announcements of any new (changed) transmission-budget information.