Wireless communication system using pilot subcarrier allocation
US8199843B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/261
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless communication system using pilot subcarrier allocation and a method of allocating the pilot subcarriers for use in downlink and uplink communication in a multiple-input multiple-output (MIMO) antenna system using orthogonal frequency division multiplexing (OFDM) modulation are disclosed. The method includes providing a frame structure comprising OFDM symbols in time domain and subcarriers in frequency domain and alternately allocating first pilot subcarriers for a first antenna and second pilot subcarriers for a second antenna in the time and frequency domains, wherein each of the alternating first pilot subcarriers and the second pilot subcarriers is separated by a multiple of 9 subcarriers in the frequency domain and further allocated in two contiguous OFDM symbols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.