Methods and apparatuses for data compression
AssigneeLantiq Deutschland GmbH
InventorDietmar Schoppmeier
Life of this patent
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Abstract
A plurality, i.e. at least two, cells are combined into a macro cell. In a macro header of said macro cell a full numbering information of a first cell of said plurality of cells is stored. For further cells of said plurality of cells other than said first cell, a deviation information indicating a deviation of a numbering information of the respective further cell from said full numbering information of said first cell or one of said further cells is stored. In some embodiments, additionally the headers of the individual cells are incorporated in the macro header.
Claims26
A method for header compression, comprising:
- assigning information to be transmitted to a plurality of cells,
- assigning a numbering information to each cell of said plurality of cells, and
- storing said numbering information in a header to be transmitted with said plurality of cells, wherein said storing step comprises:
- storing a full numbering information of a first one of said plurality of cells in said header, and
- storing a deviation of the numbering information of another one of said plurality of cells from said full numbering information in said header, wherein the deviation indicates an offset of the numbering information of the another cell from the first cell.
A method for header decompression, said method comprising:
- providing a plurality of cells having a single header,
- retrieving a full numbering information of a first one of said plurality of cells from said header,
- retrieving deviation information representing a deviation of a numbering information of at least another one of said cells from said full numbering information from said header, wherein the deviation indicates an offset of the numbering information of the another cell from the first cell, and
- reconstructing said numbering information of said another one of said plurality of cells from said full numbering information and said deviation information.
An apparatus for header compression, comprising:
- a cell builder configured to assign information to be transmitted to a plurality of cells, and further configured to assign a numbering information to each cell of said plurality of cells, and to store said numbering information in a single header to be transmitted with said plurality of cells, wherein the numbering information comprises:
- a full numbering information of a first one of said plurality of cells in said single header, and a deviation of the numbering information of another one of said plurality of cells from said full numbering information in said at least one header, wherein the deviation indicates an offset of the numbering information of the another cell from the first cell.
An apparatus for header decompression, wherein a single header is associated with a plurality of cells, said apparatus comprising:
- a cell analyzer configured to retrieve a full numbering information of a first one of said plurality of cells from said single header, and further configured to retrieve deviation information representing a deviation of a numbering information of at least another one of said cells from said full numbering information from said first cell, and to reconstruct said numbering information of said another one of said plurality of cells from said full numbering information and said deviation information, wherein the deviation indicates an offset of the numbering information of the another cell from the first cell.
Dependencies are inferred from the claim text.