초록 ▼

A communication device employs a method and apparatus for transmitting and receiving information packets using multiple layers of error detection. A sending communication device constructs an information packet to include user information divided into multiple data blocks, a primary error detection

A communication device employs a method and apparatus for transmitting and receiving information packets using multiple layers of error detection. A sending communication device constructs an information packet to include user information divided into multiple data blocks, a primary error detection code for each data block, and at least a portion of a secondary protection code. The secondary protection code provides error protection for the entire information packet. The secondary protection code is selected such that it can be incrementally determined by a receiving device as data blocks are received and accepted by the receiving device, regardless of order of reception of the data blocks. Since the secondary protection code is incrementally determined, processor utilization is better regulated and delays associated with sending acknowledgments are minimized.

대표청구항 ▼

[ I claim:] [1.] A method of transmitting information packets in a communication device, the method comprising the steps of:providing user information to be transmitted;dividing the user information into at least two data blocks;determining a first layer of error detection for each of the at least t

[ I claim:] [1.] A method of transmitting information packets in a communication device, the method comprising the steps of:providing user information to be transmitted;dividing the user information into at least two data blocks;determining a first layer of error detection for each of the at least two data blocks to produce a plurality of first layer error detections;determining a second layer of error detection for each of the at least two data blocks to produce a plurality of second layer error detections, the plurality of second layer error detections being distinct from the plurality of first layer error detections, wherein the distinctiveness of the plurality of second layer error detections from the plurality of first layer error detections results in expected differences at least between corresponding second layer error detections and first layer error detections;determining a secondary protection code based on the plurality of second layer error detections; andtransmitting an information packet that includes the at least two data blocks, the plurality of first layer error detections, and at least a portion of the secondary protection code in order to increase a probability of recovery of the user information at a receiving communication device.