Frame synchronization detection with an adaptive threshold
AssigneeCypress Semiconductor Corporation
InventorClaudio Rey
Life of this patent
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Abstract
A wireless device includes a receiver to receive a packet via one or more antennas. A frame synchronization detection circuit coupled to the receiver identifies a data pattern within a portion of the packet. A correlation circuit coupled to the frame synchronization detection circuit identifies one or more properties of the data pattern and computes one or more values of a correlation peak using a correlation method. An adaptive threshold circuit coupled to the correlation circuit determines a correlation threshold value using the one or more properties of the data pattern and the one or more values of the correlation peak.
Claims20
A system comprising:
- a wireless device;
- and
- one or more antennas, the wireless device comprising:
- a receiver to receive a packet via the one or more antennas;
- a frame synchronization detection circuit coupled to the receiver to identify a data pattern within a portion of the packet;
- and
- a correlation circuit coupled to the frame synchronization detection circuit to:
- identify one or more properties of the data pattern;
- and
- compute one or more values of a correlation peak using a correlation method;
- and
- an adaptive threshold circuit coupled to the correlation circuit to:
- determine a correlation threshold value using the one or more properties of the data pattern and the one or more values of the correlation peak.
A method of operating a wireless device, the method comprising:
- receiving a packet over a communication channel;
- identifying a data pattern within a portion of the packet;
- identifying one or more properties of the data pattern;
- computing one or more values of a correlation peak using a correlation method;
- and
- determining a correlation threshold value using the one or more properties of the data pattern and the one or more values of the correlation peak.
A wireless device comprising:
- a receiver to receive a packet over a communication channel;
- a frame synchronization detection circuit coupled to the receiver to identify a data pattern within a portion of the packet;
- a correlation circuit coupled to the frame synchronization detection circuit to:
- identify one or more properties of the data pattern;
- and
- compute one or more values of a correlation peak using a correlation method;
- and
- an adaptive threshold circuit coupled to the correlation circuit to determine a correlation threshold value using the one or more properties of the data pattern and the one or more values of the correlation peak.
Dependencies are inferred from the claim text.