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US 7,623,603 B2Granted
Intersymbol interference mitigation
AssigneeIntel Corporation
InventorsQinghua Li, Guangjie Li, Shanshan Zheng, Minnie Ho, Xiaoyun May Wu
Life of this patent
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Abstract
Embodiments of the present invention provide for computing spatial covariances of intersymbol interference (ISI) and using the computed spatial covariances for ISI mitigation. Other embodiments may be described and claimed.
Claims23
A method, comprising:
- receiving one or more training symbols over a plurality of subcarriers of a spatial channel;
- computing, with a covariance computer, based on at least in part on the received one or more training symbols, one or more spatial covariance values for intersymbol interference (ISI) over a predetermined time and over the plurality of subcarriers;
- receiving one or more data symbols;
- and
- employing the computed one or more spatial covariance values to conduct ISI mitigation on the received one or more data symbols.
2 more elements
An apparatus comprising.
- a covariance computer configured to receive one or more training symbols over a plurality of subcarriers of a spatial channel and to compute, based at least in part on the received one or more training symbols, one or more spatial covariance values for intersymbol interference (ISI) over a predetermined time and over the plurality of subcarriers;
- and
- a mitigator coupled to the covariance computer and configured to employ the computed one or more spatial covariance values to conduct ISI mitigation on one or more data symbols.
A machine-accessible medium having associated instructions, which, when accessed, results in a machine:
- receiving one or more training symbols over a plurality of subcarriers of a spatial channel;
- computing, based at least in part on the received one or more training symbols, one or more spatial covariance values for intersymbol interference (ISI) over a predetermined time and over the plurality of subcarriers;
- receiving one or more data symbols;
- and
- employing the computed one or more spatial covariance values to conduct ISI mitigation on the received one or more data symbols.
2 more elements
A system comprising:
- a plurality of receive antennas configured to receive one or more training symbols and one or more data symbols over a plurality of subcarriers of a spatial channel via an over-the-air communication (OTA) link;
- and
- an intersymbol interference (ISI) controller coupled to the plurality of receive antennas and configured to
- compute, based at least in part on the received one or more training symbols, one or more spatial covariance values for ISI over a predetermined time and over the plurality of subcarriers;
- and
- employ the computed one or more spatial covariance values to conduct ISI mitigation on the received one or more data symbols.
3 more elements
Dependencies are inferred from the claim text.