Methods and apparatus using cell-specific and common pilot subcarriers in multi-carrier, multi-cell wireless communication networks
US8009660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2005 |
| Grant date | Aug 30, 2011 |
| Priority date | — |
| Expiry date | Nov 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2657
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multi-carrier cellular wireless network (400) employs base stations (404) that transmit two different groups of pilot subcarriers: (1) cell-specific pilot subcarriers, which are used by a receiver to extract information unique to each individual cell (402), and (2) common pilots subcarriers, which are designed to possess a set of characteristics common to all the base stations (404) of the system. The design criteria and transmission formats of the cell-specific and common pilot subcarriers are specified to enable a receiver to perform different system functions. The methods and processes can be extended to other systems, such as those with multiple antennas in an individual sector and those where some subcarriers bear common network/system information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.