Robust synchronization and detection mechanisms for OFDM WLAN systems
AssigneeMarvell International Ltd.
InventorsAtul Salhotra, Kedar Shirali, Zhiyu Yang, Hui-Ling Lou
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Abstract
A synchronization module for an orthogonal frequency-division multiplexing (OFDM) receiver system including a signal combination module that generates N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals. A weighted signal generator module generates N weighted signals based on the N combination signals. N is an integer greater than one.
Claims41
A synchronization module for an orthogonal frequency-division multiplexing (OFDM) receiver system, the synchronization module comprising:
- a signal combination module that generates N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals based on N filtered signals that correspond to the N received signals;
- and
- a weighted signal generator module that generates N weighted signals based on the N combination signals and N autocorrelated signals that correspond to the N received signals,
- wherein N is an integer greater than one.
A synchronization module for an orthogonal frequency-division multiplexing (OFDM) receiver system, the synchronization module comprising:
- signal combination means for generating N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals based on N filtered signals that correspond to the N received signals;
- and
- weighted signal generator means for generating N weighted signals based on the N combination signals and N autocorrelated signals that correspond to the N received signals,
- wherein N is an integer greater than one.
A synchronization method for an orthogonal frequency-division multiplexing (OFDM) receiver system, the synchronization method comprising:
- generating N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals based on N filtered signals that correspond to the N received signals;
- and
- generating N weighted signals based on the N combination signals based on N autocorrelated signals that correspond to the N received signals,
- wherein N is an integer greater than one.
A computer program stored on a computer-readable medium for use by a processor for operating an orthogonal frequency-division multiplexing (OFDM) receiver system, the computer program comprising instructions for:
- generating N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals based on N filtered signals that correspond to the N received signals;
- and
- generating N weighted signals based on the N combination signals based on N autocorrelated signals that correspond to the N received signals,
- wherein N is an integer greater than one.
Dependencies are inferred from the claim text.