Description
To identify Interdigital’s patents related to Wi-Fi 6, we employed Wi-Fi 6 relevant keywords such as Orthogonal Frequency Division Multiple Access (OFDMA), Target Wake Time (TWT), Basic Service Set (BSS) Color, High-Efficiency (HE), 802.11ax, 160 MHz, beamforming, spatial streams, 78.125 kHz, 1024-QAM, spatial reuse, Resource Unit (RU) allocation, etc. The CPCs used for filtering included H04W, H04W 84/12, H04W 72/04, H04W 72/12, H04W 52/02, H04W 52/36, H04W 88/08, H04B, H04B 7/06, etc.
To assess a patent’s essentiality, each claim is manually analysed by our technical expert team with respect to the Wi-Fi 6 standard to verify whether all claim elements are present. We have classified a patent as potentially essential, potentially non-essential, or medium based on the following criteria:
A patent is classified as potentially essential if claim elements align with the Wi-Fi 6 specifications.
Conversely, the patent is classified as potentially non-essential if any element is missing or conflicts with the standard, such as contradictory requirements or descriptions.
A patent is marked as medium if the main technical aspects are present in the Wi-Fi 6 standard, but some elements are not explicitly defined and can only be reasonably inferred from the identified sections.
Frequently asked questions
What does this report cover about Interdigital’s Wi-Fi 6 patents?
It covers Interdigital’s patent portfolio as it relates to Wi-Fi 6. A total of 41 unique and active patent families were identified. Each family was reviewed against the IEEE 802.11ax standard to show where the portfolio touches core enabling technologies of that standard. The report sets out the scope and relevance of those families and how they align with key aspects of Wi-Fi 6. The result is a view of Interdigital’s participation in the development of the standard, based on claim level review rather than counts alone.
How were Interdigital’s Wi-Fi 6 patents identified?
Searches were run across multiple patent databases using search strings, IPC and CPC classifications, and Wi-Fi 6 specific keywords. The keywords included OFDMA, Target Wake Time, BSS Color, High Efficiency, 802.11ax, 160 MHz, beamforming, spatial streams, 78.125 kHz, 1024-QAM, spatial reuse and Resource Unit allocation. CPC filters included H04W, H04W 84/12, H04W 72/04, H04W 72/12, H04W 52/02, H04W 52/36, H04W 88/08, H04B and H04B 7/06. Since Wi-Fi 6 was published in February 2021, only patents with a priority date on or before that month were kept.
What do the essentiality classifications in this report mean?
Each claim is analysed manually by a technical team against the Wi-Fi 6 standard to check whether all claim elements are present. Patents are then classified as potentially essential, potentially non-essential, or medium. Potentially essential means the claim elements map to the standard, so a product that follows the standard would likely read on the patent. Potentially non-essential means at least one element is absent or conflicts with the standard. Medium covers cases that fall between the two, where the mapping is not clear cut.
How can I obtain this report?
The report is supplied on request through the contact page of this website. Send a note describing what you need and the team will follow up with the details. Scope can be adjusted, so the analysis can be narrowed to selected Wi-Fi 6 features or widened to other portfolios and standards. Nothing is downloaded from the page itself, because each request is handled directly with the person asking for it.
