Blind detection and synchronization of data packets

A receiver configured for blind detection of received data packets, the receiver comprising processing circuitry configured to:

• generate a running histogram of received sample values for each of a plurality of frequency bins and symbol timing phases, the running histogram spanning a most recent block of symbols representing a candidate synchronization (sync) word;
• for each symbol interval:
• analyze the histogram to estimate symbol timing phase, DC offset and frequency offset;
• determine a first candidate sync word based at least in part on the symbol timing phase, frequency offset and corresponding DC offset, the first candidate sync word representing a most recent vector of bits associated with the first candidate sync word;
• and
• discern a lower address part (LAP) obtained from the first candidate sync word to enable detection of a data packet.

A method for blind detection of data packets received by a Bluetooth standard-compliant receiver, the method comprising:

• generating a running histogram of received sample values for each of a plurality of frequency bins and symbol timing phases, the running histogram spanning a most recent block of symbols representing a candidate sync word;
• for each symbol interval:
• analyzing the histogram to estimate symbol timing phase, DC offset and frequency offset;
• determining a first candidate sync word based at least in part on the symbol timing phase, frequency offset and corresponding DC offset, the first candidate sync word having 64 bits of which 24 bits form a lower address part (LAP);
• and
• discerning the LAP obtained from the first sync word to enable detection of a Bluetooth packet.