Adaptive Uplink Duration Selection for Wireless Efficiency
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in uplink (UL) transmission due to fixed packet duration settings, leading to wasted resources or unnecessary multiple transmissions, as they do not adaptively adjust based on the amount of queued data at client stations.
Innovation Solution
A method to adaptively select uplink (UL) duration by collecting transmission statistics, estimating the amount of queued data, and determining optimal UL durations for each transmission, which are then communicated to client stations to initiate efficient data transfer, dynamically switching between OFDMA and TDMA modes as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fixed packet duration settings are used in uplink transmission, then device complexity is reduced and ease of operation is improved, but transmission efficiency deteriorates and resource wastage increases
Solution Approach 1:
The patent implements dynamic UL duration selection where the access point adjusts the uplink transmission duration based on real-time estimation of queued data amounts at client stations. Instead of using fixed packet duration settings, the system dynamically adapts the UL duration parameter to match actual data availability, thereby improving transmission efficiency while avoiding resource wastage from overly long durations or unnecessary retransmissions from overly short durations.
Solution Approach 2:
The patent changes the UL duration parameter adaptively based on estimated queued data amounts. The access point monitors transmission statistics, estimates the amount of data queued at each client station, and accordingly adjusts the UL duration parameter for subsequent transmissions. This parameter change approach allows the system to optimize transmission efficiency without requiring complex device architecture, as it leverages existing statistical information and simple estimation algorithms.
2Loss of time
If fixed packet duration settings are used, then implementation simplicity is maintained, but latency increases and throughput decreases
Solution Approach 1:
The patent implements a feedback mechanism where the access point collects uplink transmission statistics from client stations, estimates the queued data amounts based on this feedback information, and uses these estimates to determine appropriate UL durations. This closed-loop feedback approach enables the system to reduce latency by adapting to actual data conditions while keeping scheduling management relatively simple, as the estimation process leverages existing statistical data rather than requiring complex real-time monitoring.
3Loss of energy
If adaptive UL duration selection is implemented, then resource utilization is optimized and wastage is reduced, but measurement and estimation complexity increases
Solution Approach 1:
The patent enables the access point to self-determine appropriate UL durations by using its own collected transmission statistics to estimate queued data amounts at client stations. Rather than requiring complex external measurement systems or detailed reporting from each client station, the access point serves itself by leveraging existing statistical information about transmission patterns, packet sizes, and queue conditions to make informed duration selections that minimize resource wastage.
Data Source
AI summary
A method to adaptively select uplink (UL) duration includes collecting UL transmission statistics for UL transmissions from multiple client stations to an access point (AP). The method includes estimating, based on the UL transmission statistics, an amount of queued UL data at the client stations for a next UL transmission. The method includes determining, based on the estimated amount of queued UL data and the UL transmission statistics, one or more UL durations for the next UL transmission. The method includes sending the client stations scheduling information with the determined one or more UL durations to initiate the next UL transmission from the client stations to the AP.