Patent · US Active

Interference and noise estimation in a multiple input multiple output (MIMO) receiver

US8873683B2 · kind B2 · utility

1Cited by

0References

25Claims

0Family size

Assignee

Intel Mobile Communications GmbH · DE

Inventors

Rajarajan Balraj · Goldkronach, DE
Biljana Badic · Munich, DE
Tobias Scholand · Wiesloch, DE

Key dates

Filing date	Dec 7, 2012
Grant date	Oct 28, 2014
Priority date	—
Expiry date	Feb 15, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04J11/0026
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A receiver circuit receives a signal including a first reference signal from a first antenna port that is allocated to the UE. The receiver circuit includes a descrambling and despreading unit that despreads and descrambles the signal using a spreading code of the first antenna port and a scrambling sequence assigned to the UE to generate a first antenna port signal. The descrambling and despreading unit despreads and descrambles the signal using a spreading code of a second antenna port and the scrambling sequence assigned to the UE, wherein the second antenna port is unallocated to the UE to generate a second antenna port signal. A channel estimator generates a channel estimate of the first antenna port based on the first antenna port signal. An estimation unit estimates an interference and noise covariance measure based on the first antenna port signal, the channel estimate and the second antenna port signal.

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