Patent · US Active

Reducing distortion in repeaters for OFDM signals

US8837559B2 · kind B2 · utility

4Cited by

9References

16Claims

0Family size

Assignee

Andrew Wireless Systems GmbH · DE

Inventor

Milun Jovanovic · Buchdorf, DE

Key dates

Filing date	Mar 15, 2013
Grant date	Sep 16, 2014
Priority date	—
Expiry date	May 18, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/26
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Certain aspects and features are directed to determining characteristics such as phase margin and gain margin of signals such as standardized orthogonal frequency-division multiplexing (“OFDM”) signals. In one aspect, a processing system can identify multiple carriers in an OFDM signal communicated by a repeater. The carriers include carriers from frequency guard band other than those used for communicating payload data or pilot data. The processing system can generate dynamic characteristic data to be sent via the carriers. The processing system can generate modulate the carriers with the dynamic characteristic data. The modulated power level of the carriers is less than a maximum level of noise filtered by a device receiving the OFDM signal.

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