Patent · US Active

Using a synchronization channel to send quick paging signals

US8233428B2 · kind B2 · utility

7Cited by

0References

35Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Per Ernström · Stockholm, SE
Kumar Balachandran · Pleasanton, US
Havish Koorapaty · Cary, US
Rajaram Ramesh · Rockingham, US

Key dates

Filing date	Feb 3, 2009
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Sep 2, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In an orthogonal frequency division multiple access communication system, a base station transmits a quick paging signal simultaneously with a synchronization signal during the same transmission symbol time period. Even though these different signals are transmitted during the same transmission symbol time period, a periodicity of the synchronization signal is maintained to facilitate rapid and cost-effective synchronization by subscriber stations with the base station. The quick paging signal alerts subscriber stations about whether to stay awake for a subsequent page or to go into a power saving sleep mode.

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