Method and apparatus for positioning pulses over time by applying time-hopping codes having pre-defined characteristics
US6671310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2000 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | May 9, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/6908
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for positioning pulses over time (via a time layout) applies time-hopping codes having pre-defined characteristics. The time layout can be sequentially subdivided into at least first and second time components that have the same or different sizes. The method applies a first time-hopping code having first pre-defined properties to the first time component and a second time-hopping code having second pre-defined properties to the second time component. The pre-defined properties may relate to the auto-correlation property, the cross-correlation property, and spectral properties, as examples. The codes can be used to specify subcomponents within a frame, and positions (range-based, or discrete) within the subcomponents, where the pulses are positioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.