Code division multiple access mobile communication system
US7778310B2 · kind B2 · utility
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13References
2Claims
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Key dates
| Filing date | Jun 18, 2004 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Jun 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/708
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In a mobile communication system using a code division multiple access (CDMA) method, spreading code detection and frame/slot timing synchronization (cell search) is conducted by using a long code masked symbol. The spreading factor of the long code masked symbol is set to a value lower than spreading factors of other ordinary symbols. As a result, it becomes possible to reduce the circuit scale and power dissipation of the mobile terminal and raise the speed of cell search.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.