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US 9,820,272 B1Granted
Methods and devices for performing duplex mode detection
AssigneeIntel IP Corporation
InventorsPouyan Parvazi, Tianyan Pu
Life of this patent
Estimating the term…
Abstract
A circuit arrangement may include a first detection circuit configured to evaluate signal data of a carrier channel to identify a timing location of a synchronization signal within the signal data, a second detection circuit configured to, using the timing location as a reference point, extract a first candidate synchronization signal from a first candidate timing location of the signal data and to extract a second candidate synchronization signal from a second candidate timing location of the signal data, and a decision circuit configured to analyze the first detection synchronization signal and the second candidate synchronization signal to determine a duplex mode of the carrier channel.
Claims19
A circuit arrangement comprising:
- a first detection circuit configured to evaluate signal data of a carrier channel to identify a timing location of a synchronization signal within the signal data;
- a second detection circuit configured to, using the timing location as a reference point, extract a first candidate synchronization signal from a first candidate timing location of the signal data and to extract a second candidate synchronization signal from a second candidate timing location of the signal data;
- and
- a decision circuit configured to analyze the first detection synchronization signal and the second candidate synchronization signal to determine a duplex mode of the carrier channel by determining which of the first candidate synchronization signal or the second candidate synchronization signal has a higher correlation with one or more predefined synchronization signals by:
- comparing the first candidate synchronization signal and the second candidate synchronization signal with each of a plurality of predefined synchronization signals to obtain a plurality of correlation metrics for the first candidate synchronization signal and a plurality of correlation metrics for the second candidate synchronization signal;
- identifying the highest-valued correlation metric of the plurality of correlation metrics for the first candidate synchronization signal as a first correlation metric and identifying the highest-valued correlation metric of the plurality of correlation metrics for the second candidate synchronization signal as a second correlation metric;
- and
- identifying which of the first correlation metric or the second correlation metric is higher to determine which of the first candidate synchronization signal or the second candidate synchronization signal has the higher correlation with the plurality of predefined synchronization signals.
5 more elements
A circuit arrangement comprising:
- a first detection circuit configured to evaluate signal data of a carrier channel to identify a timing location of a synchronization signal within the signal data;
- a second detection circuit configured to, using the timing location as a reference point, extract a first candidate synchronization signal and a second candidate synchronization signal from the signal data;
- and
- a decision circuit configured to analyze the first candidate synchronization signal and the second candidate synchronization signal to identify which of the first candidate synchronization signal or the second candidate synchronization signal is a valid synchronization signal, and further configured to determine a duplex mode of the carrier channel based on which of the first candidate synchronization signal or the second candidate synchronization signal is identified as the valid synchronization signal by:
- determining which of the first candidate synchronization signal or the second candidate synchronization signal has a higher correlation with one or more predefined synchronization signals;
- and
- identifying the valid synchronization signal based on which has the higher correlation by:
- comparing the first candidate synchronization signal and the second candidate synchronization signal with each of a plurality of predefined synchronization signals to obtain a plurality of correlation metrics for the first candidate synchronization signal and a plurality of correlation metrics for the second candidate synchronization signal;
- identifying the highest-valued correlation metric of the plurality of correlation metrics for the first candidate synchronization signal as a first correlation metric and identifying the highest-valued correlation metric of the plurality of correlation metrics for the second candidate synchronization signal as a second correlation metric;
- and
- identifying which of the first correlation metric or the second correlation metric has higher amplitude to determine which of the first candidate synchronization signal or the second candidate synchronization signal has the higher correlation with the plurality of predefined synchronization signals.
8 more elements
A method of performing a radio scan, the method comprising:
- evaluating signal data of a carrier channel to identify a timing location of a synchronization signal within the signal data;
- using the timing location as a reference point, extracting a first candidate synchronization signal from a first candidate timing location of the signal data and extracting a second candidate synchronization signal from a second candidate timing location of the signal data;
- and
- analyzing the first candidate synchronization signal and the second candidate synchronization signal to determine a duplex mode of the carrier channel by determining which of the first candidate synchronization signal or the second candidate synchronization signal has a higher correlation with one or more predefined synchronization signals, wherein comprises:
- comparing the first candidate synchronization signal and the second candidate synchronization signal with each of a plurality of predefined synchronization signals to obtain a plurality of correlation metrics for the first candidate synchronization signal and a plurality of correlation metrics for the second candidate synchronization signal;
- identifying the highest-valued correlation metric of the plurality of correlation metrics for the first candidate synchronization signal as a first correlation metric and identifying the highest-valued correlation metric of the plurality of correlation metrics for the second candidate synchronization signal as a second correlation metric;
- and
- identifying which of the first correlation metric or the second correlation metric is higher to determine which of the first candidate synchronization signal or the second candidate synchronization signal has the higher correlation with the plurality of predefined synchronization signals.
5 more elements
Dependencies are inferred from the claim text.