Patent · US Active

Code division multiple access mobile communication system

US8837436B2 · kind B2 · utility

0Cited by

16References

3Claims

0Family size

Assignee

Fipa Frohwitter International Property AG · DE

Inventors

May Suzuki · Kokubunji, JP
Nobukazu Doi · Hachioji, JP
Takashi Yano · Nanbu, JP

Key dates

Filing date	Nov 20, 2012
Grant date	Sep 16, 2014
Priority date	—
Expiry date	Nov 20, 2032

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.