Patent · US Active

Code channel management in a wireless communications system

US7933250B2 · kind B2 · utility

2Cited by

57References

25Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Boris Tsybakov · San Diego, US
Edward G. Tiedemann, Jr. · San Diego, US
Peter Gaal · San Diego, US

Key dates

Filing date	Jun 23, 2003
Grant date	Apr 26, 2011
Priority date	—
Expiry date	Feb 27, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04W16/02
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Systems and techniques are disclosed relating to communications. The systems and techniques involve dividing a plurality of subscriber stations into a plurality of groups, assigning a different plurality of orthogonal codes to each of the groups, the number of the orthogonal codes assigned to one of the groups being less than the number of subscriber stations in said one of the groups, encoding communications to one of the subscriber stations in said one of the groups at a data rate, and determining whether to spread at least a portion of communications to said to one of the subscriber stations with one of the orthogonal codes assigned to said one of the groups as a function of the data rate.

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