Data structure, data communication method, apparatus and communi

Details Data structure, data communication method, apparatus and communi Data structure, data communication method, apparatus and communi

1997-01-27

1999-04-20

Tu, Trinh L.

Excavating

371 32, 371 35, G01R 3128

Patent

active

058963944

ABSTRACT:
A data communication method in which the data frame transmitted from the transmission side to the reception side and the feedback frame transmitted from the reception side to the transmission side use a common format jointly, and in which if there is no substantial data to be transported by the feedback frame on the reception side, the feedback frame is transmitted from the reception side to the transmission side without changing the format of the feedback frame and lowering the reception rate. The common format includes at least the transmission data length, the transmission data, the data frame number and the repeat request frame number, and is added with the error detection code for all the data. If there is no substantial transmission data to be transported by the feedback frame on the reception side, then the feedback frame is arranged such that data unrelated to feedback information including at least the transmission data length, the transmission data and the data frame number within the feedback frame, is substituted with a predetermined fixed pattern, and thereafter an error detecting code for all the data is added thereto. Then, the feedback frame is transmitted from the reception side to the transmission side.

REFERENCES:
patent: 4549297 (1985-10-01), Nishimoto
patent: 5414717 (1995-05-01), Matsumoto et al.
patent: 5715257 (1998-02-01), Matsuki et al.

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