US 12,137,387 B2
Trigger-based WLAN sensing with multiple sensing responders
Cheng Chen, Camas, WA (US); Carlos Cordeiro, Portland, OR (US); Claudio Da Silva, Portland, OR (US); and Bahareh Sadeghi, Portland, OR (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Aug. 16, 2023, as Appl. No. 18/234,714.
Application 18/234,714 is a continuation of application No. 17/351,810, filed on Jun. 18, 2021, granted, now 11,849,369.
Claims priority of provisional application 63/040,830, filed on Jun. 18, 2020.
Prior Publication US 2023/0396957 A1, Dec. 7, 2023
Int. Cl. H04W 4/02 (2018.01)
CPC H04W 4/027 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus of an access point (AP) configured for operation in a wireless local area network (WLAN), the apparatus comprising: processing circuitry; and memory,
wherein to perform WLAN sensing, the processing circuitry is configured to:
establish a sensing measurement session by transmission of a sensing measurement request frame to each non-AP station (STA) of a plurality of non-AP stations (STAs) that are operating as sensing responders,
wherein each sensing measurement request frame includes a sensing measurement parameters element encoded to include an element ID field, a length field, and a sensing measurement parameters field, the sensing measurement parameters field indicating parameters for use by the sensing responders for transmissions and receptions of null-data packets (NDPs) during trigger-based (TB) sensing measurement exchanges,
wherein to perform a TB sensing measurement exchange in which the AP is operating as a sensing initiator, the processing circuitry is configured to:
encode a sensing polling trigger frame for transmission, the sensing polling trigger frame to assign at least some of the STAs of the plurality to be polled, the sensing polling trigger frame encoded to allocate a resource unit (RU) to each of the STAs assigned to be polled; and
decode response frames received from one or more of the STAs in response to the sensing polling trigger frame, the response frames indicating that one of the STAs intends to participate in the TB sensing measurement exchange, each response frame received on the allocated RU.