The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2024
Filed:
Aug. 16, 2022
Qualcomm Incorporated, San Diego, CA (US);
Kanke Wu, San Diego, CA (US);
Bin Tian, San Diego, CA (US);
Tevfik Yucek, San Jose, CA (US);
Lin Yang, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
This disclosure provides methods, devices and systems for improving wireless communications in power spectral density (PSD)-limited frequency bands. A wireless communication device, having a number (N) of transmit antennas, parses a physical layer (PHY) protocol data unit (PPDU) into a number (N) of spatial streams and modulates the Nspatial streams on a number (M) of subcarriers. In some implementations, the wireless communication device may transmit the PPDU using a number (N) of the transmit antennas, where N≤N<N. In some other implementations, the wireless communication device may subdivide the M subcarriers into subcarrier groups and may transmit each subcarrier group using a respective subset of the Ntransmit antennas, where the number of transmit antennas used to transmit each subcarrier group is greater than or equal to the number of spatial streams modulated on the subcarriers in the group but less than N.