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

Claim 28:
29. A wireless communication device comprising:
at least one modem;
at least one processor communicatively coupled with the at least one modem; and
at least one memory communicatively coupled with the at least one processor and storing processor-readable code that, when executed by the at least one processor in conjunction with the at least one modem, is configured to:
receive, over a wireless channel, a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU);
recover first modulation symbols from a long training field (LTF) of the PPDU, the first modulation symbols representing a first LTF symbol of the LTF;
demodulate 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
estimate the wireless channel based on whether the subset of bits matches a portion of a pseudorandom bit sequence.