Patent · US Expired

System for radio transmission of digital signals between a plurality of subscriber stations and base station

US6307851A · kind A · utility

80Cited by

3References

31Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Jung · Munich, DE
Friedbert Berens · Geneva, CH
Paul Walter Baier · Kaiserslautern, DE
Jörg Plechinger · Hersbruck, DE
Karl Kammerlander · Wolfratshausen, DE

Key dates

Filing date	Oct 9, 1998
Grant date	Oct 23, 2001
Priority date	—
Expiry date	Oct 9, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2025/03605
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The new CDMA (Code Division Multiple Access) system structure which is equivalent to the structure of a CDMA system operating with direct code spread (DS, Direct Sequence) but operates with multicarrier (MC) methods. The multicarrier method is introduced a suitable selection of the spread code, with the result that the production of signals in CDMA systems with DS and with MC is harmonized and JD (Joint Detection) multisubscriber detection methods, which are known per se, with or without diversity reception can be used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.