Scrambling codes for secondary synchronization codes in wireless communication systems
US8503547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2008 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/0062
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methodologies are described that facilitate employing a scrambling code from a set of scrambling codes, which is indexed by primary synchronization codes (PSCs), to scramble or descramble a secondary synchronization code (SSC). The scrambling codes in the set can be designed to optimize peak-to-average power ratios and/or mitigate cross correlation. For example, the scrambling codes can be based on different M-sequences generated from disparate polynomials. In accordance with another example, the scrambling codes can be based on different cyclic shifts of the same M-sequence. According to another example, the scrambling codes can be based upon binary approximations of possible primary synchronization codes utilized in a wireless communication environment. Pursuant to a further example, the scrambling codes can be based on different Golay complementary sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.