Systems and methods for phase rotating duplicate frames in wireless LAN transmission
US9258163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Apr 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/26132
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, devices, and computer program products for optimally phase rotating duplicate frames in wireless LAN transmissions are disclosed. In one aspect, phase rotation sequences may be chosen in order to minimize a peak-to-average power ratio (PAPR) of a frame or data unit, or of a portion of a frame or data unit, where the frame contains a plurality of identical frequency segments, such as a duplicate frame. The method involves selecting a frame bandwidth, and then selecting a phase rotation sequence based upon the frame bandwidth. The method further includes generating a frame including a number of identical 1 MHz frequency segments, and rotating some of those segments relative to other segments, based on the selected phase rotation sequence. The method further includes transmitting the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.