Adaptive ACK Gap Timing in Wireless Packet Transactions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently handling the ACK gap periods, with ACK gap periods, with existing systems, with existing systems, with varying lengths, leading to suboptimal performance and increased power consumption.
Innovation Solution
Implement a wireless communication system where radio devices adjust their ACK listening and Clear Channel Assessment (CCA) durations based on observed ACK gap periods of neighboring devices, categorizing and weighting these periods to optimize system performance and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all radio devices use the worst case length of the ACK gap period to avoid interfering with slower implementations, then reliability is improved, but productivity deteriorates
Solution Approach 1:
The patent applies dynamics by making the ACK gap period length adjustable rather than fixed. Each radio device can dynamically adapt its ACK gap period length based on its own processing capabilities and the observed behavior of neighboring devices. This allows faster devices to use shorter ACK gap periods (improving productivity) while slower devices use longer periods (maintaining reliability), resolving the contradiction between system-wide reliability and individual device productivity.
2Reliability
If all radio devices use the worst case length of the ACK gap period, then interference with slower implementations is avoided, but system performance deteriorates
Solution Approach 1:
The patent applies local quality by allowing each radio device to use a customized ACK gap period length suited to its specific processing capabilities rather than a uniform system-wide value. Faster devices can use shorter local ACK gap periods to improve their transmission efficiency, while slower devices use longer periods appropriate to their processing speed. This localized adaptation improves overall system performance while maintaining reliability for each device type.
3Reliability
If the CCA duration covers the ACK gap period to prevent channel interference, then reliability is improved, but loss of time increases
Solution Approach 1:
The patent applies dynamics by making the CCA duration adaptable based on the actual ACK gap period length being used. Since devices can now use shorter ACK gap periods based on their processing capabilities, the required CCA duration can also be shortened accordingly. This dynamic adjustment reduces the time lost in channel assessment while maintaining reliability by ensuring the CCA still covers the actual ACK gap period being used.
Data Source
AI summary
The invention relates to a wireless communication system (100) comprising a plurality of radio devices (102, 202, 204). Each of the plurality of radio devices (102, 202, 204) is capable of transmit and receive data packets (220). At least one radio device (102, 202, 204) is configured to: ACK packets (240) received from one or more neighbouring radio devices (102, 202, 204) in response to transmitted data packets (220); determine lengths of ACK gap (230) periods of the one or more neighbouring radio devices (102, 202, 204) based on the observed ACK packets (240); and adjust its ACK listening duration (250) based on the determined lengths of the ACK gap periods (230). The invention relates also to a method for a wireless communication system (100), a radio device (102, 202, 204) for a wireless communication system (100), a method for the radio device (102, 202, 204), a computer program (505), and a tangible non-volatile computer-readable medium.