Patent · US Active

Demodulation reference signals containing side information for interference cancellation

US9742531B2 · kind B2 · utility

3Cited by

6References

24Claims

0Family size

Assignee

Intel IP Corporation · US

Inventors

Bernhard Raaf · Hersbruck, DE
Jan Ellenbeck · Munich, DE
Stefan Franz · Munich, DE
Sabine Roessel · Munich, DE

Key dates

Filing date	Oct 24, 2016
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Oct 24, 2036

Classification

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

Abstract

Embodiments for providing demodulation reference signals to provide side information for interference cancellation are generally described herein. In some embodiments, a sub-frame is prepared comprising two slots and configuring a physical resource block (PRB) for each slot, wherein each PRB comprises twelve Orthogonal Frequency Division Multiplexing (OFDM) subcarriers transmitting for a duration of 7 OFDM symbols per slot. In resource elements on each of three of twelve OFDM subcarriers, two pairs of demodulation reference signals (DMRS) are allocated to form three DMRS sets. Symbols are mapped with a first modulation for the two pairs of demodulation reference signals to three of the twelve OFDM subcarriers for transmission. A second modulation is added to a first of the three DMRS sets and a third modulation is added to a second of the three DMRS sets to indicate side information regarding an interfering signal for use in mitigating the interfering signal.

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