Frequency re-use for TDD applications
US6577869B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Sep 18, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The inventive cellular reuse plan uses a tessellating grouping of cells to form a pattern, which is then repeated to form a larger cell cluster. The invention uses a uniformly rotated set of identical or substantially identical cell assignments within a mosaic repeat pattern. The mosaic pattern uses several different cell types. Each cell type comprises a different set of frequency assignments. The different cell types are then arranged in the mosaic pattern. The cells may be represented as shapes in the pattern, e.g. hexagonal or square shapes. Each particular cell in the pattern has adjoining cells that are of a different type than the particular cell. Adjacent cells of the same type have their sector channel assignments rotated with respect to each other such that the common channels are not parallel with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.