US 9,794,027 B2Granted

Method and apparatus for generating frames for error correction

AssigneeElectronics and Telecommunications Research Institute

InventorHo Min Eum

Life of this patent

Estimating the term…

Loading patent…

Abstract

A method and apparatus for generating frames to apply error correction to data including a plurality of consecutive data groups are provided. Upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, the number of first code rate frames, which is the number of frames in the n-th data group for which a first code rate is used, is calculated based on the number of first code rate bits calculated based on the ratio of the length of data in an (n−1)-th data group for which the first code rate is used. The number of second code rate frames, which is the number of frames in the n-th data group for which the second code rate is used, is calculated based on the number of second code rate bits calculated based on the number of first code rate bits. Frames for error correction are generated based on the number of first code rate frames and the number of second code rate frames.

Claims14

Dependent claims

A method for generating frames to apply error correction to data including a plurality of consecutive data groups, the method comprising:

processing computer executable program code embodied in a recording medium by at least one processor, the computer executable program code comprising:
a program code that calculates, upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, a number of first code rate bits, which is a number of data bits in the n-th data group for which a first code rate is to be used, based on a ratio of a length of data in an (n−1)-th data group for which the first code rate is used;
a program code that calculates a number of first code rate frames, which is the number of frames in the n-th data group for which the first code rate is used, based on the number of first code rate bits;
a program code that calculates a number of second code rate bits, which is a number of data bits in the n-th data group for which a second code rate is used, based on the number of first code rate bits;
a program code that calculates a number of second code rate frames, which is a number of frames in the n-th data group for which the second code rate is used, based on the number of second code rate bits;
and
a program code that generates frames for which the first code rate is used based on the number of first code rate frames and generating frames for which the second code rate is used based on the number of second code rate frames, and
wherein the program code that calculates of the number of first code rate bits comprises:
a program code that calculates a ratio of a first code rate length, which is the ratio of the length of data in the (n−1)-th data group for which the first code rate is used;
a program code that calculates the ratio of the first code rate length with a predetermined ratio;
a program code that corrects the ratio of the first code rate length if the ratio of first code rate length is not consistent with the predetermined ratio;
and
a program code that calculates the number of first code rate bits based on the corrected ratio of the first code rate length.

10 more elements

An apparatus for generating frames to apply error correction to data including a plurality of consecutive data groups, the apparatus comprising:

at least one processor that processes computer executable program code embodied in a recording medium, the computer executable program code comprising:
a number-of-first-code-rate-bits calculating program code that, upon receiving input of an n-th data group consisting of a plurality of priority groups with different priority levels, calculates a number of first code rate bits, which is a number of data bits in an n-th data group for which a first code rate is to be used, based on a ratio of a length of data in an (n−1)-th data group for which the first code rate is used;
a number-of-first-code-rate-frames calculating program code that calculates a number of first code rate frames, which is a number of frames in the n-th data group for which the first code rate is used, based on the number of first code rate bits;
a number-of-second-code-rate-bits calculating program code that calculates a number of second code rate bits, which is a number of data bits in the n-th data group for which a second code rate is used, based on the number of first code rate bits;
a number-of-second-code-rate-frames calculating program code that calculates a number of second code rate frames, which is a number of frames in the n-th data group for which the second code rate is used, based on the number of second code rate bits;
and
a frame generating program code that generates frames for which the first code rate is used based on the number of first code rate frames and generates frames for which the second code rate is used based on the number of second code rate frames, and
a length ratio correcting program code that corrects the ratio of a first code rate length if ratio of the first code rate length, which is a ratio of the length of data in the (n−1)-th data group for which the first code rate is used, is not consistent with a predetermined ratio.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/723,912Filed 28 May 2015
Priority: KR 10-2014-006544529 May 2014
Published: US 2015/0349915 A13 Dec 2015
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 1/0083
Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location: formatting with…
H04L 1/007
Systems characterized by the type of code used: unequal error protection
H03M 7/30
Conversion of a code where information is represented by a given sequence or number of digits to a code where the same , similar or subset of…:…
H04L
Digital communication