Patent · US Active

Data-aided SIR estimation

US8699553B2 · kind B2 · utility

2Cited by

2References

18Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Anders Rosenqvist · Lund, SE
Douglas A. Cairns · Durham, US
Andres Reial · Lomma, SE

Key dates

Filing date	Feb 19, 2010
Grant date	Apr 15, 2014
Priority date	—
Expiry date	Feb 15, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L25/0238
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A signal-to-interference estimate is generated using unknown data symbols in place of or in addition to pilot symbols. Data received over a data channel (traffic channel or control channel) are collected. The data symbols are then used to compute an observation metric based on deviations of the data symbols from a predetermined set of possible data symbols, wherein one of the data symbols and symbol constellation is normalized. A data channel signal-to-interference ratio is then computed based on the observation metric.

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