Rfid protocol for improved tag-reader communications integrity

A computer readable medium having computer readable program code for operating on a computer for improving the reliability of communication in an RFID system, said computer readable program code comprising the steps of:

• computing on a first device a first interleaved parity code for a message;
• sending the message and the first interleaved parity code from the first device;
• receiving the message and interleaved parity code at a second device;
• computing on the second device a second interleaved parity code for the message;
• comparing the first interleaved parity code and the second interleaved parity code;
• and
• based on the comparison, performing one of:
• parsing and interpreting the message;
• detecting an error in the message and requesting a new message from the first device;
• and
• requesting a new message from the first device.

A system for improving the reliability of communication in an RFID system, said system comprising:

• a first device for computing a first interleaved parity code for a message;
• and
• a second device for computing a second interleaved parity code for the message, wherein said first device sends the message and the first interleaved parity code to the second device, the second device compares the first interleaved parity code and the second interleaved parity code and based on the comparison, the second device performs one of:
• parsing and interpreting the message;
• detecting an error in the message and requesting a new message from the first device;
• and
• requesting a new message from the first device.