Wireless Device Operating Parameter Update with Wider Bandwidth
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Solution Overview
Problem
Current wireless networks face challenges in efficiently updating operating parameters across different bandwidths and protocols, particularly in supporting higher bandwidths and multiple streams, which affects throughput and channel puncturing in wider bandwidth wireless networks.
Innovation Solution
The method involves a first wireless device announcing its operating parameter changes to a second device, including changes in bandwidth, mode, and coding scheme, using specific control fields and elements like HE Control and Operating Mode Notification, and applying static puncture patterns across a basic service set, allowing for dynamic adjustment of parameters like Nss values based on announced capabilities and channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If operating parameters are updated in wider bandwidth wireless networks, then throughput and network efficiency are improved, but device complexity and protocol management difficulty increase
Solution Approach 1:
The patent implements dynamic parameter changes by allowing wireless devices to update operating parameters (bandwidth, MCS, Nss) through standardized control fields and elements. The system enables flexible adjustment of transmission parameters without requiring protocol changes, resolving the contradiction by providing adaptability through parameter modification rather than structural complexity
Solution Approach 2:
The patent creates a universal operating parameter update mechanism that works across multiple protocols (HE and EHT) using common control structures. The same control fields and elements can carry parameter updates for different protocol versions and bandwidth configurations, reducing protocol management complexity through multi-functionality
2Productivity
If channel puncturing is implemented in wider bandwidths, then spectrum utilization is improved, but signal reliability and error rate performance deteriorate
Solution Approach 1:
The patent applies local quality by implementing selective channel puncturing where only specific 20 MHz subchannels within a wider bandwidth are punctured based on interference conditions. This allows the system to maintain high spectrum utilization in available channels while preserving signal reliability in punctured channels by excluding them from data transmission
Solution Approach 2:
The patent implements dynamic channel puncturing patterns that can be adjusted based on real-time channel conditions, interference levels, and traffic requirements. The system can change puncture patterns between transmissions, enabling adaptive optimization of the trade-off between spectrum utilization and signal reliability
3Productivity
If higher Nss values and bandwidths are supported, then data rate capacity is improved, but device capability requirements and implementation complexity increase
Solution Approach 1:
The patent enables dynamic adjustment of Nss and bandwidth parameters based on device capabilities, channel conditions, and traffic requirements. Devices can negotiate and switch between different parameter combinations (20/40/80/160/320 MHz bandwidths and Nss values from 1 to 16), allowing high data rate capacity when needed while reducing implementation complexity when resources are constrained
Solution Approach 2:
The patent segments the parameter space into discrete, standardized options (specific bandwidth values and Nss levels) that can be independently controlled and negotiated. This segmentation allows the system to achieve high data rate capacity through combinations of standardized parameters rather than requiring complex continuous parameter adjustment
Data Source
AI summary
Various embodiments relate to a method performed by a first wireless device for announcing operating capabilities to a second wireless device, wherein the first wireless device and second wireless device support a first protocol and a second protocol, including: announcing by the first device original capabilities to the second device; receiving an announcement of capabilities from the second device; receiving frames from the second device in PHY Protocol Data Units (PPDUs) following the first protocol and the second protocol; announcing by the first device a change in its capabilities to the second device; and receiving frames from the second device in PPDUs transmitted using the changed capabilities following the first protocol and the second protocol, wherein the change in the capabilities includes a change in a one of a puncture parameter, bandwidth parameter, mode and coding scheme (MCS) parameter, and a number of simultaneous streams (Nss) parameter.