US 11,102,653 B2 · Protection from counterfeit ranging

Abstract

Methods, apparatuses, and computer readable media for location measurement reporting in a wireless network are disclosed. An apparatus of a responder station (RSTA) is disclosed, the apparatus including processing circuitry configured to decode a null data packet (NDP) announce (NDPA) frame from an initiator station (ISTA), the NDPA frame including an indication of a temporary key and an identification of the RSTA. The processing circuitry further configured to decode a NDP from the ISTA, the NDP including long training fields (LTFs), the NDP received on a channel. The processing circuitry further configured to determine whether the NDP from the ISTA is consistent with the NDP being generated using a temporary key shared between the ISTA and RSTA based on a comparison of the channel estimates. The processing circuitry may be further configured to determine for authentication whether the indication of the temporary key was generated based on the temporary key.

Claims20

Dependent claims

An apparatus of a responder station (RSTA), the apparatus comprising memory;

and processing circuitry coupled to the memory, the processing circuitry configured to:
decode a null data packet (NDP) announcement (NDPA) frame from an initiator station (ISTA), the NDPA frame comprising a sequence authentication code (SAC) and an association identification (AID) of the RSTA;
decode an uplink (UL) NDP from the ISTA, the UL NDP comprising first long training fields (LTFs), wherein the NDP is decoded using LTF generation information indicated by the SAC;
encode a downlink (DL) NDP based on second LTFs generated using the LTF generation information;
configure the RSTA to transmit the DL NDP to the ISTA;
perform an integrity check on the UL NDP to verify that the UL NDP was generated from the LTF generation information;
in response to a determination that the UL NDP was not generated from the LTF generation information, encode a location measurement report (LMR) comprising an invalid measurement field indicating the UL NDP was not generated from the LTF generation information;
in response to a determination that the UL NDP was generated from the LTF generation information, encode the LMR comprising the invalid measurement field indicating the UL NDP was generated from the LTF generation information;
and
configure the RSTA to transmit the LMR to the ISTA.

7 more elements

Dependencies are inferred from the claim text.

Protection from counterfeit ranging

Life of this patent

Protection from counterfeit ranging

Life of this patent

Abstract

Claims20