Wi-Fi Management Frames for 320 MHz Multi-Segment BSS Operation
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Solution Overview
Problem
Current Wi-Fi protocols, such as IEEE 802.11ac, do not support operation modes with greater than 160 MHz total configured bandwidth, limiting data throughput in next-generation Wi-Fi technology, particularly in less crowded bands like the 6 GHz band, and require additional hardware for non-continuous segment operations.
Innovation Solution
Implementing methods and apparatus to enable access points and stations to operate in four segment operation modes, including contiguous and asymmetric modes, by modifying management frames with center frequency and channel width fields, and generating trigger frames to facilitate 320 MHz operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current Wi-Fi protocols (IEEE 802.11ac) are used, then compatibility with existing devices is maintained, but bandwidth is limited to 160 MHz maximum
Solution Approach 1:
The patent divides the frequency spectrum into multiple non-contiguous segments (e.g., four 80 MHz segments) that can be combined to achieve 320 MHz total bandwidth. Each segment is managed independently with its own center frequency and channel width fields in management frames, allowing the system to support higher bandwidths by aggregating multiple segments rather than requiring a single continuous 320 MHz channel.
Solution Approach 2:
The patent modifies management frames by adding center frequency and channel width fields to enable dynamic configuration of BSS bandwidth. This allows the system to adapt bandwidth parameters (20, 40, 80, 160, or 320 MHz) based on available spectrum and device capabilities, resolving the contradiction between maintaining protocol compatibility and supporting higher bandwidths.
2Productivity
If non-continuous segment operations are implemented, then bandwidth utilization is improved, but additional hardware is required
Solution Approach 1:
The patent designs management frames with flexible center frequency and channel width fields that can accommodate various bandwidth configurations (contiguous or non-contiguous segments). This universal frame structure allows existing Wi-Fi hardware to operate in multiple bandwidth modes without requiring dedicated hardware for each configuration, as the same hardware can be programmed to handle different segment arrangements through software-controlled frame processing.
3Productivity
If 320 MHz operation modes are enabled, then data throughput is increased, but interference management becomes more difficult
Solution Approach 1:
By dividing the 320 MHz bandwidth into multiple non-contiguous segments, the patent reduces interference within each segment while maintaining high aggregate throughput. The frequency separation between segments isolates them from adjacent channel interference, and the system can select segments with the least interference based on environmental conditions, thus resolving the contradiction between high throughput and interference management.
Data Source
AI summary
Methods, apparatus, systems and articles of manufacture are disclosed to generate a management frame identifying an operation mode for a basic service set of a local area network. An example disclosed method includes performing an assessment of a wireless network and determining an operation mode for a basic service set (BSS) bandwidth based on the assessment, the operation mode indicating continuity of a primary segment, a secondary segment, a tertiary segment and a quaternary segment. The example method further includes creating a management frame including information fields based on the BSS bandwidth, the information fields including a first channel width field, a second channel width field, a third channel width field, a first center frequency field, a second center frequency field and a third center frequency field and transmitting the management frame over the wireless network.