Data terminal and coding method for increased packet reliability in a frequency hopping system

A data terminal that decodes a data packet that is received in a link of a communication system, comprising:

• a processor;
• and
• a memory programmed with program instructions that control the processor for:
• determining an information portion and a received redundancy check code of the received data packet;
• generating a calculated redundancy check code over the information portion and an identifier using a predetermined redundancy check code generator, wherein the identifier is at least one of an identity of the link and an identity of the data terminal;
• and
• rejecting the information portion when the received redundancy check code does not match the calculated redundancy check code.

A method for decoding a data packet that is received in a link of a communication system, comprising in a receiving terminal the steps of:

• determining an information portion and a received redundancy check code of the received data packet;
• generating a calculated redundancy check code over the information portion and an identifier using a predetermined redundancy check code generator, wherein the identifier is a combination of an identity of the receiving terminal and an identity of a transmitting terminal, and wherein the transmitting terminal is a source of the data packet;
• and
• rejecting the information portion when the received redundancy check code does not match the calculated redundancy check code.