Huawei NDPA Frame Method for Wi-Fi 7, Bandwidth Over 160 MHz
Summary
The USPTO published Huawei's patent application US20260100800A1 for a Null Data Packet Announcement (NDPA) frame transmission method enabling channel state information feedback for Wi-Fi 7 operations exceeding 160 MHz bandwidth. The patent covers an access point generating NDPA frames with station information fields including partial bandwidth information subfields to indicate resource units requiring feedback.
What changed
USPTO granted patent US20260100800A1 to Huawei Technologies Co., Ltd. covering a method for transmitting Null Data Packet Announcement frames in Wi-Fi 7 networks with bandwidths exceeding 160 MHz. The method involves generating NDPA frames containing station information fields with association identifier subfields and partial bandwidth information subfields indicating resource units requiring channel state information feedback.
Technology companies developing Wi-Fi 7 equipment and access points should consider this patent when designing products operating at bandwidths above 160 MHz. Manufacturers may need to evaluate licensing requirements for implementing NDPA frame transmission methods. The patent provides Huawei with exclusionary rights in the US market for this Wi-Fi 7 signaling technology.
What to do next
- Monitor for related patent developments
- Review licensing opportunities if implementing Wi-Fi 7 technology
Archived snapshot
Apr 12, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
NULL DATA PACKET ANNOUNCEMENT FRAME TRANSMISSION METHOD AND RELATED APPARATUS
Application US20260100800A1 Kind: A1 Apr 09, 2026
Assignee
HUAWEI TECHNOLOGIES CO., LTD.
Inventors
Jian Yu, Yuchen Guo, Chenchen Liu, Yunbo Li, Ming Gan, Dandan Liang
Abstract
A method includes: An access point generates an NDPA frame, where the NDPA frame includes a station information field, and the station information field includes an AID subfield indicating an association identifier AID of a station; the station information field further includes a partial bandwidth information subfield; the partial bandwidth information subfield indicates an RU that is in a bandwidth corresponding to the NDPA frame and for which the station needs to feed back channel state information; and the bandwidth corresponding to the NDPA frame is greater than 160 MHz. The access point transmits the NDPA frame.
CPC Classifications
H04L 5/0057
Filing Date
2025-10-21
Application No.
19365093
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