Frequency re-use for point to multipoint applications
US6643277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Feb 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/541
- 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 mosaic pattern uses several different cell types. Each cell type preferably comprises a different set of channel assignments. The channels are preferably provided additional orthogonality, such as through the use of polarization, where channel assignments within a cell are grouped to provide adjacent sectors, as a block, with primary communication links using commonly polarized channels. The different cell types are then arranged in the mosaic pattern. Each particular cell in the pattern has adjoining cells that are of a different type than the particular cell. The most preferred embodiment cell pattern does not utilize all available channels to thereby provide reserve channels for use in providing redundant links and/or added capacity. Preferably, each of the reserve channels provides redundant communication links to a block of commonly polarized primary channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.