Interferer parameter estimation method and apparatus
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsKarl J. Molnar, George Jöngren
Life of this patent
Estimating the term…
Abstract
Interference is estimated in an Orthogonal Frequency Division Multiplexing system by receiving at a wireless receiver pilot symbols and data symbols transmitted in time and frequency via resource blocks, detecting a first one of the data symbols transmitted to the wireless receiver via a time-frequency resource element of a first one of the resource blocks and identifying a second one of the resource blocks adjacent the first resource block having related interference parameters. The interference is estimated based on the pilot symbols transmitted via the first resource block and the pilot symbols transmitted via the second resource block.
Claims24
A method of estimating interference in an Orthogonal Frequency Division Multiplexing system, comprising:
- receiving at a wireless receiver pilot symbols and data symbols transmitted in time and frequency via resource blocks;
- detecting a first one of the data symbols transmitted to the wireless receiver via a time-frequency resource element of a first one of the resource blocks;
- identifying a second one of the resource blocks adjacent the first resource block having related interference parameters;
- and
- estimating interference based on the pilot symbols transmitted via the first resource block and the pilot symbols transmitted via the second resource block.
A wireless mobile device operable to receive Orthogonal Frequency Division Multiplexing signals, comprising:
- a front end circuit operable to process pilot symbols and data symbols received in time and frequency via resource blocks;
- a symbol detector operable to detect a first one of the data symbols transmitted via a time-frequency resource element of a first one of the resource blocks;
- a grouping unit operable to identify a second one of the resource blocks adjacent the first resource block having related interference parameters;
- and
- an interference estimator operable to estimate interference based on the pilot symbols transmitted via the first resource block and the pilot symbols transmitted via the second resource block.
A base station operable to receive Orthogonal Frequency Division Multiplexing signals, comprising:
- a front end circuit operable to process pilot symbols and data symbols received in time and frequency via resource blocks;
- a symbol detector operable to detect a first one of the data symbols transmitted via a time-frequency resource element of a first one of the resource blocks;
- a grouping unit operable to identify a second one of the resource blocks adjacent the first resource block having related interference parameters;
- and
- an interference estimator operable to estimate interference based on the pilot symbols transmitted via the first resource block and the pilot symbols transmitted via the second resource block.
Dependencies are inferred from the claim text.