Using CRC residual value to distinguish a recipient of a data packet in a communication system

A method of operating a communication system, the method comprising:

• maintaining a plurality of different cyclic redundancy check (CRC) generation schemes, each CRC generation scheme corresponding to a respective unique CRC residual value;
• placing, in a data packet to be transmitted, a CRC residual value generated using a chosen one of said plurality of CRC generation schemes, the chosen CRC generation scheme reflecting which one or more of a plurality of transceivers is/are intended as recipient(s) of said data packet;
• communicating the data packet to the plurality of transceivers, including at least first and second transceivers:
• when the data packet is received by the first transceiver:
• calculating a first CRC residual value based on data contained in the received data packet;
• comparing the calculated first CRC residual value against a list of one or more valid CRC residual values stored with said first transceiver;
• and
• if the calculated first CRC residual value matches one of the listed valid CRC residual values stored with said first transceiver, accepting said data packet by said first transceiver, and otherwise rejecting said data packet by said first transceiver;
• and
• when the data packet is received by the second transceiver:
• calculating a second CRC residual value based on data contained in the received data packet;
• comparing the calculated second CRC residual value against a list of at least two valid CRC residual values stored with said second transceiver, wherein at least one of the at least two valid CRC residual values stored with said second transceiver matches at least one valid CRC residual value stored with said first transceiver;
• and
• if the calculated second CRC residual value matches one of the listed at least two valid CRC residual values stored with said second transceiver, accepting said data packet by said second transceiver, and otherwise rejecting said data packet by said second transceiver.