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US 2006/0222092 A1Published application
Platform noise mitigation in OFDM receivers
AssigneeIntel Corporation
InventorsYongfang Guo, Xintian Lin, Qinghua Li
Life of this patent
Estimating the term…
Abstract
Techniques and structures are presented for use in mitigating the effects of platform noise within a wireless device.
Claims29
A method comprising:
- estimating platform noise power per tone information during a quiet period in a wireless device;
- receiving an orthogonal frequency division multiplexing (OFDM) symbol from a wireless channel;
- and
- using said platform noise power per tone information to generate soft bits for said OFDM symbol for delivery to a Viterbi decoder within said wireless device.
1 more element
An apparatus comprising:
- a noise power per tone estimator to estimate platform noise power per tone during a quiet period when no communication activity is occurring;
- a discrete Fourier transform (DFT) unit to convert a received orthogonal frequency division multiplexing (OFDM) symbol from a time domain representation to a frequency domain representation, said frequency domain representation including a number of frequency domain samples, each of said frequency domain samples representing a received data symbol for a corresponding tone of said OFDM symbol;
- a soft bit generation subsystem to generate soft bits for said received OFDM symbol using said platform noise power per tone information generated by said noise power per tone estimator;
- and
- a Viterbi decoder to process said soft bits.
2 more elements
A system comprising:
- at least two dipole antennas;
- a noise power per tone estimator to estimate platform noise power per tone during a quiet period when no communication activity is occurring;
- a discrete Fourier transform (DFT) unit to convert a received orthogonal frequency division multiplexing (OFDM) symbol from a time domain representation to a frequency domain representation, said frequency domain representation including a number of frequency domain samples, each of said frequency domain samples representing a received data symbol for a corresponding tone of said OFDM symbol;
- a soft bit generation subsystem to generate soft bits for said received OFDM symbol using said platform noise power per tone information generated by said noise power per tone estimator;
- and
- a Viterbi decoder to process said soft bits.
3 more elements
An article comprising a storage medium having instructions stored thereon that, when executed by a computing platform, operate to:
- acquire platform noise per tone information for a wireless device;
- receive an orthogonal frequency division multiplexing (OFDM) symbol from a wireless channel;
- and
- use said platform noise power per tone information to generate soft bits for said OFDM symbol for delivery to a Viterbi decoder within said wireless device.
1 more element
Dependencies are inferred from the claim text.