Scheduling in a cellular system

A scheduling node for use in a cellular communications system in which transmissions to and from users are made in subframes which have a certain extension in time and which extend over a certain amount of subcarriers (Δf) in frequency, with the subframes comprising a number of subelements, the scheduling node being adapted to schedule a first and a second channel in one and the same subframe, comprising:

• at least one processor unit communicatively coupled to a memory storing instructions thereon, when executed by the processor unit, configured to perform the scheduling comprising:
• distributing transmission resources needed for the first channel into a first set of resource groups;
• assigning the resource groups of the first set to subelements in the subframe in a predetermined fashion, wherein each subelement comprises a group of four time-frequency resource elements;
• assigning a symbol value to all subelements in the subframe which have not been assigned a resource groups of the first set;
• distributing transmission resources needed for the second channel into a second set of resource groups;
• and
• assigning, in a predetermined fashion, the resource groups of the second set to subelements in the subframe by means of said symbol values, wherein assigning the resource groups of the second set comprises:
• determining a respective symbol value for one or more resource groups of the second set based on the number of subelements in the subframe which have not been assigned a resource group of the first set, and
• assigning each resource group of the second set to a subelement associated with a respective symbol value determined for that resource group.