Assignment of air-interface spreading codes in a cellular wireless communication system
US8837415B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/367
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method, system, and apparatus for managing spreading codes used in communication over a radio frequency air interface. When a radio access network (RAN) is to assign a spreading code to a mobile station in the coverage area, the RAN may determine which mobile station currently having an assigned traffic channel in the coverage area has a highest forward-link signal quality, and the RAN may select a spreading code based on the spreading code of that determined mobile station's assigned traffic channel. For instance, the RAN may select a spreading code that is quasi-orthogonal to the spreading code of the determined mobile station's assigned traffic channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.