Method for assigning scrambling codes in a CDMA cellular mobile communications network
US8081605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2004 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Feb 2, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of assigning scrambling codes to cells of a CDMA cellular mobile communications network includes assigning to each cell of a set of cells of a network area a cell attribute adapted to identify a cell typology, and, for each cell, assigning a respective primary scrambling code according to the cell typology, exploiting said cell attribute. The cell attribute includes a first attribute value adapted to identify a cell in which a complexity of computation to be performed by the user equipment for determining the cell primary scrambling code is to be minimized, and a second attribute value adapted to identify a cell in which a synchronization time of mobile communications user equipment is to be minimized. If the cell has an attribute value equal to said first attribute, the cell is assigned a primary scrambling code different from the primary scrambling codes assigned to neighboring cells. If the cell has an attribute value equal to said second attribute, the cell is assigned a primary scrambling code not belonging to a code group to which a primary scrambling code assigned to a neighboring cell belongs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.