Patent · US Active

Method and apparatus for generating OFDM signals

US10785076B2 · kind B2 · utility

2Cited by

4References

17Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Johan HILL · Lund, SE
Michael Breschel · Lund, SE

Key dates

Filing date	Jul 23, 2019
Grant date	Sep 22, 2020
Priority date	—
Expiry date	Jul 23, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/66
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method in a transmitter circuit of generating a signal comprising a first sequence of OFDM symbols, which are to be transmitted within a frequency sub band of a second sequence of OFDM symbols is disclosed. A first cyclic prefix (CP) of the second sequence of OFDM symbols has a first duration, and a second CP of the second sequence of OFDM symbols has a second duration. In order to generate both the first and the second cyclic prefix with an integer number of equidistant samples, a first sampling rate is required. The method comprises generating the signal comprising the first sequence of OFDM symbols at a second sampling rate, lower than the first sampling rate, and adjusting a sampling phase during CPs.

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