Methods and apparatus for configuring a pilot symbol in a wireless communication system
US8391410B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 2006 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Sep 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for constructing a pilot symbol for a communication frame transmitted in a wireless communication system, such as an OFDM system, are disclosed. In particular, the methods and apparatus generate at least one pseudo-random noise sequence having at least a predetermined length, where the at least one pseudo-random noise sequence represents a system configuration of a wireless system. A time domain symbol sequence is modulated with the at least one pseudo-random noise sequence to create a timing acquisition pilot symbol. The modulated acquisition pilot symbol is further masked to a prescribed frequency profile and placed in a frame for wireless transmission. Accordingly, different system configurations can be communicated from a transmitter to a receiver with the acquisition pilot symbol modulated with correspondingly different pseudo-random noise sequences, while affording low complexity required to process the acquisition pilot symbol and a minimum peak to average power ratio when using QPSK modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.