Patent ID: 7136929
Filing Date: 2006-11-14
Classification: H04L,H04W

Abstract:
1. A method for reliable unacknowledged communication of a long length data message transmitted in a presence of interference, the method comprising the steps of: dividing contents of the long length data message into a plurality of subpackets of predetermined size; incorporating a subpacket error detection field into each of the plurality of subpackets; calculating a value of a message integrity field indicative of the contents of the long length data message; incorporating the value of the message integrity field into one of the plurality of subpackets; transmitting the plurality of subpackets and the value of the message integrity field to at least one receiver over a communications link for a predetermined number of times; storing at least one of the plurality of subpackets by the at least one receiver when the subpacket error detection field of the at least one of the plurality of subpackets received by the at least one receiver indicates that the at least one of the plurality of subpackets has been received without error; calculating a message integrity field value of the stored at least one of the plurality of subpackets; and determining that the long length data message has been correctly received when the message integrity field value of the stored at least one of the plurality of subpackets corresponds to the transmitted value of the message integrity field, wherein said transmitting the plurality of subpackets and the value of the message integrity field to at least one receiver over a communication link for the predetermined number of times is implemented to provide a highly robust broadcast communication link without requiring the at least one receiver to send back an acknowledge signal when the long length data is determined to be received correctly.