Apparatus and method for estimating OVSF code
US10903927B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2019 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0204
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method for estimating OVSF (orthogonal variable spreading factor) code, the method comprises setting an initial value of a spreading factor and an initial value of an index of the spreading factor; extracting a first reception symbol by dechannelizing a reception signal based on a candidate OVSF code corresponding to the set spreading factor and the set index; acquiring a first code domain power of the first reception symbol; acquiring, if the first code domain power is greater than or equal to a predetermined reference value, variance of power of the first reception symbol which is normalized by the first code domain power; and estimating a used OVSF code based on the variance of the normalized power of the first reception symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.