Patent ID: 11894964
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A method for wireless communication by a wireless communication device, the method comprising:
receiving, over a wireless channel, a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU);
recovering first modulation symbols from a long training field (LTF) of the PPDU, the first modulation symbols representing a first LTF symbol of the LTF;
demodulating each of the first modulation symbols from a respective one of a number of subcarriers associated with the LTF, demodulation of the first modulation symbols producing a subset of bits representing the first LTF symbol, a number of bits in the subset of bits being based on the number of subcarriers and a type of modulation scheme, and each of the first modulation symbols being represented by a respective subset of values of the subset of bits; and
estimating the wireless channel based on whether the subset of bits matches a portion of a pseudorandom bit sequence.