Method and device for allocating, by a telecommunication device, at least a first and a second consecutive channel elements of a group of channel elements of a channel resource to a destination

A method for allocating, by a telecommunication device, at least first and second channel elements of a group of channel elements of a channel resource to a destination, each channel element being a predefined subdivision of the channel resource, the method comprising, executed by the telecommunication device:

• selecting, for the first channel element, a first randomization function according to the position of the first channel element within the group of channel elements and according to the destination;
• selecting, for the second channel element, a second randomization function according to the position of the second channel element within the group of channel elements and according to the destination;
• processing data to be included in the first channel element by the first randomization function and processing data to be included in the first channel element by the second randomization function;
• and
• transferring the data processed by the first randomization function by mapping the data processed by the first randomization function on the first channel element and the data processed by the second randomization function by mapping the data processed by the second randomization function on the second channel element in combination with other data processed by other randomization functions mapped on other channel elements of the channel resource.

A method for determining if at least first and second channel elements of a group of channel elements of a channel resource are allocated to a destination by a first telecommunication device, each channel element being a predefined subdivision of the channel resource, the method comprising, executed by the destination:

• receiving a group of channel elements on which received data are mapped;
• selecting, for each channel element, a randomization function according to the position of the channel element in the group of channel elements;
• processing the received data mapped on each channel element by the randomization function determined for the channel element on which the received data are mapped;
• determining, among the processed received data, at least two identical processed received data obtained from the received data mapped on at least two channel elements of a subset of the group of channel elements;
• and
• deciding that the at least two channel elements of the subset of the group of channel elements are allocated to the destination if the at least two processed received data are identical.

A device for allocating at least first and second channel elements of a group of channel elements of a channel resource to a destination, each channel element being a predefined subdivision of the channel resource, the device for allocating being included in a telecommunication device, and comprising:

• means for selecting, for the first channel element, a first randomization function according to the position of the first channel element within the group of channel elements and according to the destination;
• means for selecting, for the second channel element, a second randomization function according to the position of the second channel element within the group of channel elements and according to the destination;
• means for processing the data to be included in the first channel element by the first randomization function and processing the data to be included in the first channel element by the second randomization function;
• and
• means for transferring the data processed by the first randomization function by mapping the data processed by the first randomization function on the first channel element and the data processed by the second randomization function by mapping the data processed by the second randomization function on the second channel element in combination with other data processed by other randomization functions mapped on other channel elements of the channel resource.

A device for determining if at least first and second channel elements of a group of channel elements of a channel resource are allocated to a destination by a first telecommunication device, each channel element being a predefined subdivision of the channel resource, the device for determining being included in a second telecommunication device and comprising:

• means for receiving a group of channel elements on which received data have been mapped;
• means for selecting, for each channel element, a randomization function according to the position of the channel element within the group of channel elements;
• means for processing the received data mapped on each channel element by the randomization function determined for the channel element on which the received data are mapped;
• means for determining, among the processed received data, at least two identical processed received data obtained from received data mapped on at least two channel elements of a subset of the group of channel elements;
• and
• means for deciding that the at least two channel elements of the subset of the group of channel elements are allocated to the destination if the at least two processed received data are identical.