Freescale Semiconductor,inc.

Wim Rouwet

Bo Lin

An apparatus for data traffic scheduling comprises a scheduler assigning at least one priority parameter value prioritizing usage of a communication resource comprising a plurality of logical channels, to each of a plurality of users of the communication resource, a channel analyzer providing at least one channel condition indicator for each logical channel, and a filter providing a scheduling parameter value for each logical channel to the scheduler determining the priority parameter value, the scheduling parameter value being a weighted average of a plurality of values of the at least one channel condition indicator.

Channel condition dependent scheduling

A method of packing a Worldwide Interoperability for Microwave Access (WiMAX) frame, characterised in that the method comprises the steps of: creating a matrix of substantially the same number of rows and columns as the WiMAX frame; mapping a first control message to a position in a first corner of the matrix; mapping a first data message to a position in a second corner of the matrix, wherein the second corner is opposite in a predetermined direction to the first corner; mapping a plurality of further control messages to the matrix in a first direction moving from the first corner towards the centre of the matrix; and mapping a plurality of further data messages to the matrix in a second direction that is different from the first direction, from the second corner of the matrix towards the centre of the matrix; until one or more of the further data messages meets one or more of the further control messages; copying the control messages from the matrix to a first area of the WiMAX frame; arranging the control messages in the WiMAX frame so that the first control message is located at the start of the frame; and copying the data messages from the matrix to a second area of the WiMAX frame, so that the first data message is located directly after the control messages.

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Br Margraten, Netherlands

Wim Rouwet